PC-24 Master Maintenance and Operating Procedures (MMOP)

25-64-01A (ALL) – Life jackets ............................................................................................... 45 ATA 26 – FIRE PROTECTION ........................................................................................................ 47 26-24-01A (ALL) – Hand fire extinguishers .............................................................................. 47 Document Number: 02384 I004 R01 / February 02, 2021 Page 4 of 100 ATA 27 – FLIGHT CONTROLS ....................................................................................................... 49 27-10-01A (ALL) – Aileron trim ............................................................................................... 49 27-10-02A (ALL) – Aileron trim position indication ................................................................... 51 27-20-02A (ALL) – Rudder trim position indication ................................................................... 52 27-60-01A (ALL) – Multi-Function Spoiler (MFS) System ........................................................... 53 27-60-02A (ALL) – Ground Spoiler System .............................................................................. 54 27-60-06A (ALL) – Roll assist position sensor (RAPS) .............................................................. 55 ATA 28 – FUEL............................................................................................................................ 57 28-40-01A (ALL) – Fuel quantity indication system .................................................................. 57 28-40-01B (ALL) – Fuel quantity indication system .................................................................. 58 ATA 30 – ICE AND RAIN PROTECTION ......................................................................................... 59 30-10-01A (ALL) – Wing anti-ice valve ..................................................................................... 59 ATA 32 – LANDING GEAR ............................................................................................................ 61 32-30-01A (ALL) – Landing gear actuator heater ..................................................................... 61 32-40-06A (ALL) – Anti-skid system ........................................................................................ 62 32-40-07A (ALL) – Hydraulic filter assembly bypass electrical indicator ..................................... 64 ATA 33 – LIGHTS ........................................................................................................................ 65 33-20-02A (ALL) – Cabin signs .............................................................................................. 65 33-42-01-1A (ALL) – Red beacons ............................................................................................ 66 33-50-01-1A (ALL) – Overhead emergency lighting ...................................................................... 67 ATA 34 – NAVIGATION ................................................................................................................ 69 34-15-01A (ALL) – Altitude alerting system ............................................................................. 69 34-40-01A (ALL) – Airborne collision avoidance system (ACAS/TCAS II) .................................... 70 34-40-01B (ALL) – Airborne collision avoidance system (ACAS/TCAS II) .................................... 72 34-43-01-5A (ALL) – EGPWS –Advisory callouts .......................................................................... 74 34-43-01-5B (ALL) – EGPWS –Advisory callouts .......................................................................... 75 34-51-01B (ALL) – Navigation systems ................................................................................... 76 34-54-02-2B (ALL) – Extended squitter (ADS-B out) transmissions ............................................... 77 34-60-01A (ALL) – Navigation database .................................................................................. 78 34-60-01B (ALL) – Navigation database .................................................................................. 79 ATA 35 – OXYGEN....................................................................................................................... 81 35-10-01-1A (ALL) – Flight crew fixed oxygen system .................................................................. 81 35-20-01A (ALL) – Passenger oxygen system .......................................................................... 82 35-20-01B (ALL) – Passenger oxygen system .......................................................................... 83 35-20-01-1A (ALL) – Automatic mask deployment system ........................................................... 84 35-20-01-2A (ALL) – Passenger drop down masks ..................................................................... 85 35-50-01A (ALL) – Portable oxygen cylinder assembly (POCA) ................................................... 86 ATA 36 – PNEUMATIC ................................................................................................................. 87 36-10-01A (ALL) – Bleed air shut-off valve (SOV) ..................................................................... 87 36-10-02A (ALL) – Bleed air pressure regulating valve (PRV) .................................................... 89 36-10-04A (ALL) – Bleed pressure sensor (BPS) ..................................................................... 90 36-10-05A (ALL) – Bleed temperature sensor (BTS) ................................................................. 91 Document Number: 02384 I004 R01 / February 02, 2021 Page 5 of 100 36-10-08A (ALL) – Burst disk assembly .................................................................................. 92 ATA 38 – WATER/WASTE ........................................................................................................... 93 38-30-01A (ALL) – Water and waste system ........................................................................... 93 ATA 44 – CABIN SYSTEMS .......................................................................................................... 95 44-00-01A (ALL) – USB charging ports ................................................................................... 95 ATA 46 – INFORMATION SYSTEMS .............................................................................................. 97 46-20-01-04A (ALL) – Lower MFD ............................................................................................... 97 ATA 52 – DOORS ........................................................................................................................ 99 52-70-01A (ALL) – Cargo door actuation system...................................................................... 99 Document Number: 02384 I004 R01 / February 02, 2021 Page 6 of 100 This Page Intentionally Left Blank Document Number: 02384 I004 R01 / February 02, 2021 Page 7 of 100 LIST OF EFFECTIVE PAGES Section Page No Revision No Applicability All pages are issued at Issue 004 Revision 01, dated February 02, 2021. GENERAL Not applicable ITEM LIST Not applicable Document Number: 02384 I004 R01 / February 02, 2021 Page 8 of 100 This Page Intentionally Left Blank Document Number: 02384 I004 R01 / February 02, 2021 Page 9 of 100 LOG OF REVISIONS ORIGINAL ISSUE: Issue 001 Revision 00, dated November 17/2017 REVISION: Issue 002 Revision 00, dated November 29, 2017 Purpose of revision: To include new items and correct previous ones. Changes are not marked with a revision bar. REVISION: Issue 003 Revision 00, dated May 28, 2019 Purpose of revision: To include new items and amend previous ones. Changes are not marked with a revision bar. REVISION: Issue 004 Revision 00, dated February 20, 2020 Purpose of revision: To include new items and amend previous ones. Changes are marked with a revision bar. REVISION: Issue 004 Revision 01, dated February 02, 2021 Purpose of revision: To include new items and amend previous ones. Changes are marked with a revision bar. GENERAL Not applicable ITEM LIST Not applicable Document Number: 02384 I004 R01 / February 02, 2021 Page 10 of 100 This Page Intentionally Left Blank Document Number: 02384 I004 R01 / February 02, 2021 Page 11 of 100 GENERAL INFORMATION The content of this Maintenance and Operating Procedures Manual is based on the: Pilatus PC-24 Master Minimum Equipment List (MMEL) - Document Number 02384 – Issue 004 revision 01, dated January 29, 2021. Refer to the MMEL Preamble for definitions and instructions on the use and application of the procedures contained herein. Document Number: 02384 I004 R01 / February 02, 2021 Page 12 of 100 This Page Intentionally Left Blank Document Number: 02384 I004 R01 / February 02, 2021 Page 13 of 100 ATA 21 – AIR CONDITIONING 21-40-01A (ALL) – Cockpit electrical heater 1. Maintenance (M) Before the first flight under MMEL dispatch conditions, apply the following procedure to open the required Electronic Circuit Breakers (ECB): A. Power down the electrical system. B. Move the co-pilot seat fully forward to get access to the Maintenance panel on the lower right cockpit side panel. C. Remove the Maintenance panel cover which is attached by Velcro strips. D. Make sure that the RIGGING switch on the Maintenance Panel is set to OFF. E. Set the MAINT MODE switch on the Maintenance Panel to MAINT. Hold it in this position throughout the entire procedure either by inserting a pin or by hand (second person). Note: If the switch is inadvertently released then start the procedure over from step (A). F. Turn on electrical power (either using Ground or Battery power). Note: Steps (F) through (N) must be performed within 4 minutes. If more time elapses then start the procedure over from step (A). G. Verify that the “Maint Switch“ CAS message is shown. H. Place the cursor in the main area of the upper MFD. I. Press the PAGE button. J. In the pulldown menu, select “Maint”. K. On the CMC MAIN MENU page, select “SYSTEM DIAGNOSTICS”. L. Using the scroll wheel and the ENTER button, select  “42 INTEGRATED MODULAR AVIONICS”, then  “20 DATA CONCENTR AND PROCESS UNIT”, then  “ENTER UMS MAINT MODE”. M. On the UMS MAINTENANCE MODE page make sure that the “SET MAINTENANCE MODE SWITCH TO MAINT” status is “MAINT”. N. Select “ENTER UMS MAINTENANCE MODE”. O. Make sure UMS MAINTENANCE MODE STATUS is ON for all eight channels. P. Press PAGE button. Q. In the pulldown menus, select “Synoptic”. R. On lower MFD, press “SYN” bezel. S. Press “ECB” bezel. T. On the “SET” bezel, set the following ECBs to LOCK: ECB CKPT HEAT HI CKPT HEAT LO U. On the “STATUS” bezel, select “OUT”. Note: This will list all the ECBs which are OUT. Whenever an ECB is set to IN in step (V) then it will disappear from this list. Document Number: 02384 I004 R01 / February 02, 2021 Page 14 of 100 V. On the “SET” bezel, set all listed ECBs to IN, until the displayed list is empty. W. On the “STATUS” bezel, select “LOCK”. X. Make sure that the ECBs which were set to LOCK in step (T) are shown. Make sure no other ECBs are listed as “LOCK”. Y. Remove the pin from the MAINT MODE switch or release the switch. It moves to the normal position. Note: This will automatically re-boot the UMS in normal mode. Z. Put the Maintenance panel cover back on. 2. Operations (O) None required. Document Number: 02384 I004 R01 / February 02, 2021 Page 15 of 100 21-40-02A (ALL) – Cabin electrical heater 1. Maintenance (M) Before the first flight under MMEL dispatch conditions, apply the following procedure to open the required Electronic Circuit Breakers (ECB): A. Power down the electrical system. B. Move the co-pilot seat fully forward to get access to the Maintenance panel on the lower right cockpit side panel. C. Remove the Maintenance panel cover which is attached by Velcro strips. D. Make sure that the RIGGING switch on the Maintenance Panel is set to OFF. E. Set the MAINT MODE switch on the Maintenance Panel to MAINT. Hold it in this position throughout the entire procedure either by inserting a pin or by hand (second person). Note: If the switch is inadvertently released then start the procedure over from step (A). F. Turn on electrical power (either using Ground or Battery power). Note: Steps (F) through (N) must be performed within 4 minutes. If more time elapses then start the procedure over from step (A). G. Verify that the “Maint Switch“ CAS message is shown. H. Place the cursor in the main area of the upper MFD. I. Press the PAGE button. J. In the pulldown menu, select “Maint”. K. On the CMC MAIN MENU page, select “SYSTEM DIAGNOSTICS”. L. Using the scroll wheel and the ENTER button, select  “42 INTEGRATED MODULAR AVIONICS”, then  “20 DATA CONCENTR AND PROCESS UNIT”, then  “ENTER UMS MAINT MODE”. M. On the UMS MAINTENANCE MODE page make sure that the “SET MAINTENANCE MODE SWITCH TO MAINT” status is “MAINT”. N. Select “ENTER UMS MAINTENANCE MODE”. O. Make sure UMS MAINTENANCE MODE STATUS is ON for all eight channels. P. Press PAGE button. Q. In the pulldown menus, select “Synoptic”. R. On lower MFD, press “SYN” bezel. S. Press “ECB” bezel. T. On the “SET” bezel, set the following ECBs to LOCK: ECB Cabin HEAT 1 L Cabin HEAT 1 R Cabin HEAT 2 L Cabin HEAT 2 R U. On the “STATUS” bezel, select “OUT”. Note: This will list all the ECBs which are OUT. Whenever an ECB is set to IN in step (V) then it will disappear from this list. V. On the “SET” bezel, set all listed ECBs to IN, until the displayed list is empty. Document Number: 02384 I004 R01 / February 02, 2021 Page 16 of 100 W. On the “STATUS” bezel, select “LOCK”. X. Make sure that the ECBs which were set to LOCK in step (T) are shown. Make sure no other ECBs are listed as “LOCK”. Y. Remove the pin from the MAINT MODE switch or release the switch. It moves to the normal position. Note: This will automatically re-boot the UMS in normal mode. Z. Put the Maintenance panel cover back on. 2. Operations (O) None required. Document Number: 02384 I004 R01 / February 02, 2021 Page 17 of 100 21-60-01A (ALL) – Temperature control valve (TCV) 1. Maintenance (M) None required. 2. Operations (O) A. Plan and conduct the flight at a maximum altitude of FL250. B. After engine start, using the Bleed Selector Switch on the centre console set the associated bleed air shut-off valve (SOV) to the closed position: 1. If the left TCV has failed, set the bleed air selector switch to "R". 2. If the right TCV has failed, set the bleed air selector switch to "L". C. On the ECS synoptic page, using the X-Bleed valve bezel button, set the X-Bleed valve to "CLOSED". D. Keep both the SOV and the X-Bleed valve closed throughout the subsequent flight(s). Document Number: 02384 I004 R01 / February 02, 2021 Page 18 of 100 21-60-02A (ALL) – Flow control valve (FCV) 1. Maintenance (M) None required. 2. Operations (O) A. Plan and conduct the flight at a maximum altitude of FL250. B. After engine start, using the Bleed Selector Switch on the centre console set the associated bleed air shut-off valve (SOV) to the closed position: 1. If the left FCV has failed, set the bleed air selector switch to "R". 2. If the right FCV has failed, set the bleed air selector switch to "L". C. On the ECS synoptic page, using the X-Bleed valve bezel button, set the X-Bleed valve to "CLOSED". D. Keep both the SOV and the X-Bleed valve closed throughout the subsequent flight(s). Document Number: 02384 I004 R01 / February 02, 2021 Page 19 of 100 21-60-03A (ALL) – Dual heat exchanger fan (DHEF) 1. Maintenance (M) Before the first flight under MMEL dispatch conditions, apply the following procedure to open the required Electronic Circuit Breakers (ECB): A. Power down the electrical system. B. Move the co-pilot seat fully forward to get access to the Maintenance panel on the lower right cockpit side panel. C. Remove the Maintenance panel cover which is attached by Velcro strips. D. Make sure that the RIGGING switch on the Maintenance Panel is set to OFF. E. Set the MAINT MODE switch on the Maintenance Panel to MAINT. Hold it in this position throughout the entire procedure either by inserting a pin or by hand (second person). Note: If the switch is inadvertently released then start the procedure over from step (A). F. Turn on electrical power (either using Ground or Battery power). Note: Steps (F) through (N) must be performed within 4 minutes. If more time elapses then start the procedure over from step (A). G. Verify that the “Maint Switch“ CAS message is shown. H. Place the cursor in the main area of the upper MFD. I. Press the PAGE button. J. In the pulldown menu, select “Maint”. K. On the CMC MAIN MENU page, select “SYSTEM DIAGNOSTICS”. L. Using the scroll wheel and the ENTER button, select  “42 INTEGRATED MODULAR AVIONICS”, then  “20 DATA CONCENTR AND PROCESS UNIT”, then  “ENTER UMS MAINT MODE”. M. On the UMS MAINTENANCE MODE page make sure that the “SET MAINTENANCE MODE SWITCH TO MAINT” status is “MAINT”. N. Select “ENTER UMS MAINTENANCE MODE”. O. Make sure UMS MAINTENANCE MODE STATUS is ON for all eight channels. P. Press PAGE button. Q. In the pulldown menus, select “Synoptic”. R. On lower MFD, press “SYN” bezel. S. Press “ECB” bezel. T. On the “SET” bezel, set the following ECBs to LOCK: ECB HEAT EXCH U. On the “STATUS” bezel, select “OUT”. Note: This will list all the ECBs which are OUT. Whenever an ECB is set to IN in step (V) then it will disappear from this list. V. On the “SET” bezel, set all listed ECBs to IN, until the displayed list is empty. W. On the “STATUS” bezel, select “LOCK”. Document Number: 02384 I004 R01 / February 02, 2021 Page 20 of 100 X. Make sure that the ECB which was set to LOCK in step (T) are shown. Make sure no other ECBs are listed as “LOCK”. Y. Remove the pin from the MAINT MODE switch or release the switch. It moves to the normal position. Note: This will automatically re-boot the UMS in normal mode. Z. Put the Maintenance panel cover back on. 2. Operations (O) A. Perform the bleed air PBIT: Turn on the bleed air supply by setting the bleed air rotary switch on the centre console to the "BLEED BOTH" position, for at least two minutes with the engines set at ground idle. If the PBIT fails this will be indicated by the illumination of Bleed Off / Fail L or Bleed Off / Fail R or Bleed Off / Fail, L+R CAS message. B. To perform a bleed off take-off: Before take-off, command both of the bleed air shut-off valves to the closed position by setting the bleed air rotary switch to the "OFF" position. After take-off (at the pilot's discretion) command both bleed air shut off valves to the open position by setting the bleed air rotary switch to the "BLEED BOTH" position. Document Number: 02384 I004 R01 / February 02, 2021 Page 21 of 100 21-80-01A (ALL) – Cockpit evaporator fan 1. Maintenance (M) Before the first flight under MMEL dispatch conditions, apply the following procedure to open the required Electronic Circuit Breakers (ECB): A. Power down the electrical system. B. Move the co-pilot seat fully forward to get access to the Maintenance panel on the lower right cockpit side panel. C. Remove the Maintenance panel cover which is attached by Velcro strips. D. Make sure that the RIGGING switch on the Maintenance Panel is set to OFF. E. Set the MAINT MODE switch on the Maintenance Panel to MAINT. Hold it in this position throughout the entire procedure either by inserting a pin or by hand (second person). Note: If the switch is inadvertently released then start the procedure over from step (A). F. Turn on electrical power (either using Ground or Battery power). Note: Steps (F) through (N) must be performed within 4 minutes. If more time elapses then start the procedure over from step (A). G. Verify that the “Maint Switch“ CAS message is shown. H. Place the cursor in the main area of the upper MFD. I. Press the PAGE button. J. In the pulldown menu, select “Maint”. K. On the CMC MAIN MENU page, select “SYSTEM DIAGNOSTICS”. L. Using the scroll wheel and the ENTER button, select  “42 INTEGRATED MODULAR AVIONICS”, then  “20 DATA CONCENTR AND PROCESS UNIT”, then  “ENTER UMS MAINT MODE”. M. On the UMS MAINTENANCE MODE page make sure that the “SET MAINTENANCE MODE SWITCH TO MAINT” status is “MAINT”. N. Select “ENTER UMS MAINTENANCE MODE”. O. Make sure UMS MAINTENANCE MODE STATUS is ON for all eight channels. P. Press PAGE button. Q. In the pulldown menus, select “Synoptic”. R. On lower MFD, press “SYN” bezel. S. Press “ECB” bezel. T. On the “SET” bezel, set the following ECB to LOCK: ECB CKPT Fan U. On the “STATUS” bezel, select “OUT”. Note: This will list all the ECBs which are OUT. Whenever an ECB is set to IN in step (V) then it will disappear from this list. V. On the “SET” bezel, set all listed ECBs to IN, until the displayed list is empty. Document Number: 02384 I004 R01 / February 02, 2021 Page 22 of 100 W. On the “STATUS” bezel, select “LOCK”. X. Make sure that the ECB which was set to LOCK in step (T) is shown. Make sure no other ECBs are listed as “LOCK”. Y. Remove the pin from the MAINT MODE switch or release the switch. It moves to the normal position. Note: This will automatically re-boot the UMS in normal mode. Z. Put the Maintenance panel cover back on. 2. Operations (O) None required. Document Number: 02384 I004 R01 / February 02, 2021 Page 23 of 100 21-80-02A (ALL) – Cabin evaporator fan 1. Maintenance (M) Before the first flight under MMEL dispatch conditions, apply the following procedure to open the required Electronic Circuit Breakers (ECB): A. Power down the electrical system. B. Move the co-pilot seat fully forward to get access to the Maintenance panel on the lower right cockpit side panel. C. Remove the Maintenance panel cover which is attached by Velcro strips. D. Make sure that the RIGGING switch on the Maintenance Panel is set to OFF. E. Set the MAINT MODE switch on the Maintenance Panel to MAINT. Hold it in this position throughout the entire procedure either by inserting a pin or by hand (second person). Note: If the switch is inadvertently released then start the procedure over from step (A). F. Turn on electrical power (either using Ground or Battery power). Note: Steps (F) through (N) must be performed within 4 minutes. If more time elapses then start the procedure over from step (A). G. Verify that the “Maint Switch“ CAS message is shown. H. Place the cursor in the main area of the upper MFD. I. Press the PAGE button. J. In the pulldown menu, select “Maint”. K. On the CMC MAIN MENU page, select “SYSTEM DIAGNOSTICS”. L. Using the scroll wheel and the ENTER button, select  “42 INTEGRATED MODULAR AVIONICS”, then  “20 DATA CONCENTR AND PROCESS UNIT”, then  “ENTER UMS MAINT MODE”. M. On the UMS MAINTENANCE MODE page make sure that the “SET MAINTENANCE MODE SWITCH TO MAINT” status is “MAINT”. N. Select “ENTER UMS MAINTENANCE MODE”. O. Make sure UMS MAINTENANCE MODE STATUS is ON for all eight channels. P. Press PAGE button. Q. In the pulldown menus, select “Synoptic”. R. On lower MFD, press “SYN” bezel. S. Press “ECB” bezel. T. On the “SET” bezel, set the following ECBs to LOCK: ECB Cabin Fan R and/or Cabin Fan L U. On the “STATUS” bezel, select “OUT”. Note: This will list all the ECBs which are OUT. Whenever an ECB is set to IN in step (V) then it will disappear from this list. V. On the “SET” bezel, set all listed ECBs to IN, until the displayed list is empty. Document Number: 02384 I004 R01 / February 02, 2021 Page 24 of 100 W. On the “STATUS” bezel, select “LOCK”. X. Make sure that the ECBs which were set to LOCK in step (T) are shown. Make sure no other ECBs are listed as “LOCK”. Y. Remove the pin from the MAINT MODE switch or release the switch. It moves to the normal position. Note: This will automatically re-boot the UMS in normal mode. Z. Put the Maintenance panel cover back on. 2. Operations (O) None required. Document Number: 02384 I004 R01 / February 02, 2021 Page 25 of 100 ATA 22 – AUTO FLIGHT 22-10-01A (NCC) – Autopilot 1. Maintenance (M) None required. 2. Operations (O) A. Consider the increase in workload due to the unavailability of the AP and the prevailing conditions (e.g. crew skill level, IMC/VMC, Day/Night, duration of flight, complexity of the intended approach procedure, etc.). If the expected increase in workload may become excessive then Pilatus recommends implementing suitable mitigations (e.g. change in flight plan, postponement of the flight, etc.). B. Consider operational regulations and determine whether there are any applicable restrictions for the intended type of operation (e.g. for PBN/MNPS, Low visibility operations, etc.). Note: RVSM operations not permitted. Document Number: 02384 I004 R01 / February 02, 2021 Page 26 of 100 22-10-01B (CAT) – Autopilot 1. Maintenance (M) None required. 2. Operations (O) A. Consider the increase in workload due to the unavailability of the AP and the prevailing conditions (e.g. crew skill level, IMC/VMC, Day/Night, duration of flight, complexity of the intended approach procedure, etc.). If the expected increase in workload may become excessive then Pilatus recommends implementing suitable mitigations (e.g. change in flight plan, postponement of the flight, etc.). B. Consider operational regulations and determine whether there are any applicable restrictions for the intended type of operation (e.g. for PBN/MNPS, Low visibility operations, etc.). Note: RVSM operations not permitted. Document Number: 02384 I004 R01 / February 02, 2021 Page 27 of 100 22-10-02A (ALL) – Flight director symbols (FD bars) 1. Maintenance (M) None required. 2. Operations (O) A. Consider the increase in workload due to the unavailability of the AP and the prevailing conditions (e.g. crew skill level, IMC/VMC, Day/Night, duration of flight, complexity of the intended approach procedure, etc.). If the expected increase in workload may become excessive then Pilatus recommends implementing suitable mitigations (e.g. change in flight plan, postponement of the flight, etc.). B. Consider operational regulations and determine whether there are any applicable restrictions for the intended type of operation (e.g. for PBN/MNPS, Low visibility operations, etc.). Note: RVSM operations not permitted. Document Number: 02384 I004 R01 / February 02, 2021 Page 28 of 100 22-30-01A (ALL) – Auto-throttle 1. Maintenance (M) A. Open the hinged nose door (LH 212AL) on the left hand side of the aircraft nose. B. Pull the following mechanical circuit breaker on PNL 913. CB CB Name LF2 THRUST LEVER 2. Operations (O) None required. Document Number: 02384 I004 R01 / February 02, 2021 Page 29 of 100 ATA 23 – COMMUNICATIONS 23-11-02A (ALL) – Selective call system (SELCAL) 1. Maintenance (M) None required. 2. Operations (O) A. Actively monitor (listen to) the transmissions on the applicable frequency while long range communication capability is required. Document Number: 02384 I004 R01 / February 02, 2021 Page 30 of 100 23-12-01B (CAT) – VHF Communications (Multi Mode Digital Radio – MMDR) 1. Maintenance (M) None required. 2. Operations (O) The unavailability of the communications radio(s) will result in an increase in workload. Pilatus cannot anticipate the operational environment and requirements under which dispatch is intended. Therefore, the operator should implement a process where the impact of the unavailability of the radio(s) is assessed and briefed to the flight crew. This process should consider factors such as, but not limited to: 1. Density and complexity of the airspace, 2. the number of frequency changes and handovers required for an intended flight, 3. operational rules requiring the monitoring of emergency frequencies, 4. Single or dual crew operation, etc. The process should be described in the operator’s Maintenance and Operating Procedures Manual, or equivalent. Document Number: 02384 I004 R01 / February 02, 2021 Page 31 of 100 23-12-01C (CAT) – VHF Communications (Multi Mode Digital Radio – MMDR) 1. Maintenance (M) None required. 2. Operations (O) The unavailability of the communications radio(s) will result in an increase in workload. Pilatus cannot anticipate the operational environment and requirements under which dispatch is intended. Therefore, the operator should implement a process where the impact of the unavailability of the radio(s) is assessed and briefed to the flight crew. This process should consider factors such as, but not limited to: 1. Density and complexity of the airspace, 2. the number of frequency changes and handovers required for an intended flight, 3. operational rules requiring the monitoring of emergency frequencies, 4. Single or dual crew operation. The process should be described in the operator’s Maintenance and Operating Procedures Manual, or equivalent. Document Number: 02384 I004 R01 / February 02, 2021 Page 32 of 100 23-30-01B (ALL) – Public address (PA) system 1. Maintenance (M) None required. 2. Operations (O) A. Define in the operators Maintenance and Operating Procedures manual a minimum set of hand signs to communicate non-verbally with the cabin occupants. The hand signs should include as a minimum (more may be defined): 1. “Is everything OK?” 2. Don the oxygen masks 3. Brace for impact B. Brief the cabin crew members (if carried) and the passengers on the fact that the PA system is not operative and on the hand signs to be expected. C. Use direct verbal communication and hand signs as required. Document Number: 02384 I004 R01 / February 02, 2021 Page 33 of 100 ATA 24 – ELECTRICAL POWER 24-20-01A (ALL) – 115V AC outlets 1. Maintenance (M) Before the first flight under MMEL dispatch conditions, apply the following procedure to open the required Electronic Circuit Breaker (ECB) of the associated inverter: A. Power down the electrical system. B. Move the co-pilot seat fully forward to get access to the Maintenance panel on the lower right cockpit side panel. C. Remove the Maintenance panel cover which is attached by Velcro strips. D. Make sure that the RIGGING switch on the Maintenance Panel is set to OFF. E. Set the MAINT MODE switch on the Maintenance Panel to MAINT. Hold it in this position throughout the entire procedure either by inserting a pin or by hand (second person). Note: If the switch is inadvertently released then start the procedure over from step (A). F. Turn on electrical power (either using Ground or Battery power). Note: Steps (F) through (N) must be performed within 4 minutes. If more time elapses then start the procedure over from step (A). G. Verify that the “Maint Switch“ CAS message is shown. H. Place the cursor in the main area of the upper MFD. I. Press the PAGE button. J. In the pulldown menu, select “Maint”. K. On the CMC MAIN MENU page, select “SYSTEM DIAGNOSTICS”. L. Using the scroll wheel and the ENTER button, select  “42 INTEGRATED MODULAR AVIONICS”, then  “20 DATA CONCENTR AND PROCESS UNIT”, then  “ENTER UMS MAINT MODE”. M. On the UMS MAINTENANCE MODE page make sure that the “SET MAINTENANCE MODE SWITCH TO MAINT” status is “MAINT”. N. Select “ENTER UMS MAINTENANCE MODE”. O. Make sure UMS MAINTENANCE MODE STATUS is ON for all eight channels. P. Press PAGE button. Q. In the pulldown menus, select “Synoptic”. R. On lower MFD, press “SYN” bezel. S. Press “ECB” bezel. T. On the “SET” bezel, set the following ECBs to LOCK: ECB Inverter and/or Inverter 2 and/or Fwd Galley LT/CTRL Document Number: 02384 I004 R01 / February 02, 2021 Page 34 of 100 U. On the “STATUS” bezel, select “OUT”. Note: This will list all the ECBs which are OUT. Whenever an ECB is set to IN in step (V) then it will disappear from this list. V. On the “SET” bezel, set all listed ECBs to IN, until the displayed list is empty. W. On the “STATUS” bezel, select “LOCK”. X. Make sure that the ECBs which were set to LOCK in step (T) are shown. Make sure no other ECBs are listed as “LOCK”. Y. Remove the pin from the MAINT MODE switch or release the switch. It moves to the normal position. Note: This will automatically re-boot the UMS in normal mode. Z. Put the Maintenance panel cover back on. 2. Operations (O) None required. Document Number: 02384 I004 R01 / February 02, 2021 Page 35 of 100 ATA 25 – EQUIPMENT/FURNISHINGS 25-11-01-2A (ALL) – Flight crew seats – Vertical and recline adjustment 1. Maintenance (M) Note: Refer to the applicable Component Maintenance Manual (CMM, Ipeco Publication Reference Number SM702) for information and support in the following procedures. A. Determine the reason why the vertical and/or recline adjustment is inoperative (Ref. CMM TESTING AND FAULT ISOLATION section). B. If required, move the seat to an acceptable position for the flight crew member. C. Consider the reason why the vertical and/or recline adjustment is inoperative and use appropriate maintenance practice to secure and lock the seat in the acceptable position. 2. Operations (O) None required. Document Number: 02384 I004 R01 / February 02, 2021 Page 36 of 100 25-11-01-3A (ALL) – Flight crew seats – Other adjustments 1. Maintenance (M) Note: Refer to the applicable Component Maintenance Manual (CMM, Ipeco Publication Reference Number SM702) for information and support in the following procedures. A. Determine the reason why the vertical and/or recline adjustment is inoperative (Ref. CMM TESTING AND FAULT ISOLATION section). B. If required, move the seat to an acceptable position for the flight crew member. C. Consider the reason why the affected adjustment is inoperative and use appropriate maintenance practice to secure and lock the seat in the acceptable position. Note: If an armrest cannot be secured in a position where it will not hinder an emergency evacuation or any other flight duties then it must be removed. 2. Operations (O) None required. Document Number: 02384 I004 R01 / February 02, 2021 Page 37 of 100 25-20-01A (ALL) – Storage cabinets/wardrobe/galley 1. Maintenance (M) A. Remove all items from the affected storage cabinet/wardrobe/galley, except for those permanently affixed. B. Secure the compartment closed by using locally procured self-adhesive tape. If feasible, install the tape so that it will preclude operation of the compartment latch. Note: Make sure the tape is of good quality so that it will not leave traces of adhesive when removed. C. Install an INOPERATIVE – DO NOT USE placard in a position where it can be clearly seen by a person who attempts to open the storage cabinet/wardrobe/galley. The following steps are applicable only for the forward galley: D. Pull the following mechanical circuit breakers on the forward galley, CB panel, flight compartment. CB Name GALLEY BREWER GALLEY OVEN If equipment is powered from the AC outlet: E. Disconnect the electrical connector from the AC receptacle. 2. Operations (O) None required. Document Number: 02384 I004 R01 / February 02, 2021 Page 38 of 100 25-21-01A (ALL) – Passenger seats 1. Maintenance (M) A. Make sure that the inoperative seat does not restrict an occupant’s access to the isle or to an emergency exit. Note: If the inoperative seat blocks access to an emergency exit or to the isle from any other seat(s) in front or behind it then this/these seat(s) must also be considered to be affected. B. Put a PASSENGER SEAT INOPERATIVE placard on the affected seat(s). Use locally procured self- adhesive tape. Note: Make sure the tape is of good quality so that it will not leave traces of adhesive when removed. C. Put a conspicuous DO NOT OCCUPY placard on the affected seat(s). Secure the placard in such a way that it is not possible to use the seat without disturbing the placard, for example by running the tape from the top of the seat back to the forward edge of the seat cushion. Use locally procured self-adhesive tape. Note: Make sure the tape is of good quality so that it will not leave traces of adhesive when removed. 2. Operations (O) None required.