PC-24 - Service Bulletin - SB 42-026 - Revision 1
PILATUS PC-24 · Service Bulletins
Overview
This Service Bulletin No. 42-026 provides instructions for upgrading the Honeywell Primus APEX DFZ software to Build 6.0 for Pilatus PC-24 aircraft. It outlines the compliance requirements, modification details, and necessary materials for the software update.
- Applicable to PC-24 aircraft MSN 101 thru MSN 600.
- Mandatory compliance within 13 months from the issue date.
- Upgrade improves performance and fixes deficiencies.
- Includes instructions for loading Honeywell Primus APEX DFZ Build 6.0.
- Revision No. 1 includes amendments to compliance time and warranty statement.
- Operators should check with their Airworthiness Authority for local regulations.
- Software and FRED File are available for download from MyPilatus.
- No changes to weight and balance or electrical load.
Document
Source
Originally published by admin.ch. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type ·
- Service Bulletins
- Year ·
- 2026
- File size ·
- 191 KB
- Publisher ·
- admin.ch
- Language ·
- en
Specifications & performance
Extracted from this document.
Specifications
- Man hours total ·
- 3.75
- Software version ·
- Build 6.0
What is the PC-24 - Service Bulletin - SB 42-026 - Revision 1?
The PC-24 - Service Bulletin - SB 42-026 - Revision 1 is a service bulletins for the PILATUS PC-24, dated 2026.
Where does the PC-24 - Service Bulletin - SB 42-026 - Revision 1 come from?
This copy of the PC-24 - Service Bulletin - SB 42-026 - Revision 1 was originally published by admin.ch and is hosted on Sprinkle as a free, searchable reference copy.
What year was the PC-24 - Service Bulletin - SB 42-026 - Revision 1 published?
The PC-24 - Service Bulletin - SB 42-026 - Revision 1 — the PILATUS PC-24 service bulletins on file — is dated 2026.
Most owners only have the POH. Here's the essential set for the PILATUS PC-24.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins on file
- Type Certificate (TCDS)
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In this document
Planning Information
Details the effectivity of the modification, concurrent requirements, and the reason for the software upgrade.
Description
Provides data and instructions necessary to load the Honeywell Primus APEX DFZ Build 6.0 software.
Compliance
Mandatory compliance during the next scheduled maintenance event, not later than 13 months from the issue date.
Material Information
Outlines the materials required for the software update and warranty information.
Accomplishment Instructions
Includes warnings and detailed steps for safely performing the software update.
Manpower
Total man-hours required for the modification is 3.75.
Safety notes
- WARNING: Be careful when working on the electrical system; electrical power can cause death or injury.
- Ensure the aircraft is in safe maintenance mode before applying electrical power.
Full document text
Service Bulletin No: 42-026 Ref No: 272 Modification No: EC-24-0105 ATA Chapter: 42 SERVICE BULLETIN Pilatus Aircraft Ltd, Pilatusstrasse 1, 6371 Stans, Switzerland Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 1 of 12 INTEGRATED MODULAR AVIONICS - GENERAL HONEYWELL PRIMUS APEX DFZ BUILD 6.0 SOFTWARE LOAD 1. Planning information A. Effectivity PC-24 aircraft MSN 101 thru MSN 600. This modification will be incorporated on MSN 601 and subsequent during production. B. Concurrent requirements The Service Bulletins listed below are to be embodied prior to, or in conjunction with, the accomplishment of this Service Bulletin: MSN 101 thru MSN 230 only • Service Bulletin SB 42-015 - Honeywell Primus APEX DFZ Build 5.1 (or higher) Software Load (Latest Revision). NOTE: For aircraft MSN 231 thru MSN 337 - APEX DFZ Build 5.1 was installed in production. NOTE: For aircraft MSN 501 thru MSN 600 - APEX DFZ Build 5.3 was / will be installed in production. MSN 101 thru MSN 337 only • Service Bulletin SB 42-022 - UMS Build 10.0 (or higher) Software Load (Latest Revision). NOTE: For aircraft MSN 501 thru MSN 600 - UMS Build 10.0 was / will be installed in production. C. Reason To upgrade the Honeywell APEX DFZ Operational Software to Build 6.0. The APEX software is upgraded to improve performance, introduce new features, and fix some deficiencies reported as feedback from the PC-24 fleet. APEX Build 6.0 introduces improvements and bug fixes for the following systems: NOTE: PC-24 Service Letter SL-071 (Information on APEX Build 6.0 Software Update) provides further detailed information. • ATA 22 - Auto Flight Control System • ATA 23 - Communications • ATA 31 - Indicating and Recording System • ATA 34 - Navigation Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 2 of 12 SERVICE BULLETIN D. Description This Service Bulletin gives the data and instructions necessary to load the software: • Honeywell Primus APEX DFZ Build 6.0 • FDR Rev.8 FRED File. E. Reason for revision Revision No.1 of this Service Bulletin is issued to include: • An amendment to the compliance time in Para. 1.F. • An amendment to the warranty statement in Para. 2.B. • Due to a superseding Temporary Revision (TR), an amendment to the TR number in Para. 3.F. • Minor improvements to update this Service Bulletin to the latest PC-24 standard. For Operators that have accomplished this Service Bulletin at a previous Issue/Revision, no further action is necessary. F. Compliance Mandatory To be embodied during the next scheduled maintenance event, but not later than 13 months from the issue date of this Service Bulletin. G. Approval The technical content of this document is approved under the authority of the DOA ref. EASA.21J.357. Pilatus advises Operators/Owners to check with their designated Airworthiness Authority for any changes, local regulations or sanctions that may affect the embodiment of this Service Bulletin. H. Copyright and legal statement © Pilatus Aircraft Ltd. This document contains proprietary information that is protected by copyright. All rights are reserved. No part of this document may be copied, reproduced or translated to other languages without the prior written consent of Pilatus Aircraft Ltd. In connection with the use of this document, Pilatus does not provide any express or implied warranties and expressly disclaims any warranty of merchantability or fitness for a particular purpose. This document contains trade secrets, confidential and/or proprietary information of Pilatus and technical data subject to export control laws and regulations, including the U.S. Export Administration Regulations (EAR). Disclosure or distribution of this document contrary to the EAR, and other laws and regulations, is strictly forbidden. The above restrictions may apply to data on all pages of this document. SERVICE BULLETIN Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 3 of 12 I. Manpower J. Weight and balance Not changed. K. Electrical load change data Not changed. L. Software This modification loads the software listed below: • Honeywell Primus APEX DFZ software Build 6.0 • FRED File FDR Rev.8. M. References Aircraft Maintenance Manual (AMM): N. Publications affected Airplane Flight Manual (AFM). Aircraft Maintenance Manual (AMM). Flight Crew Operating Manual (FCOM). O. Interchangeability of parts One-way Interchangeable. The new P/N is installed in place of the old P/N, but the old P/N cannot be installed in place of the new P/N. Description Man-Hours Preparation 0.50 Modification 2.75 Test 0.25 Requirements after job completion 0.25 TOTAL MAN-HOURS 3.75 PC24-A-E20-10-0003-00A-913A-A PC24-A-E20-10-0003-01A-913A-A PC24-A-E20-10-0004-00A-913A-A PC24-A-E24-00-0000-00A-913A-A PC24-A-E45-45-0000-00A-750C-A Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 4 of 12 SERVICE BULLETIN 2. Material information Operators that require additional information and/or Service Bulletin material can contact their authorized Pilatus Service Center, or Pilatus Customer Support on www.pilatus-aircraft.com contact us. NOTE: Part numbers given in this Service Bulletin are correct at the time of approval. Pilatus Aircraft Ltd reserves the right to change the part numbers as necessary. Part numbers of items delivered are correct when dispatched. This could lead to differences between those part numbers quoted in this Service Bulletin and the delivered parts, if parts are superseded. Operators are requested to check the Illustrated Parts Data (IPD) for delivered parts that differ from those listed in the Service Bulletin Materials List. Operators are requested to advise Pilatus Aircraft Ltd of the Manufacturer’s Serial Number (MSN), the flying hours and landings of aircraft that are allocated for this Service Bulletin. A. Material - Price and availability B. Warranty
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(1) Pilatus will supply the required software free of charge for all affected aircraft on approval of a warranty claim, provided the work is accomplished by an authorized Service Center within 13 months of the issue date of this Service Bulletin. (2) Honeywell agrees to cover the cost for labour of all affected aircraft on approval of a warranty claim, provided the work is accomplished by an appropriately rated Honeywell Service Center within 13 months of the issue date of this Service Bulletin. C. Material necessary for each aircraft. NOTE: Referenced AMM procedures may contain additional materials to be procured. (1) Software to download from MyPilatus To download the software Login to https://my.pilatus-aircraft.com/ and go to the Downloads section. New part No. Description Old part No. Qty Disp. code Fig Item 985.99.12.566 (Supplier P/N EB60000491- 0108) Software, APEX DFZ B6.0 - 985.99.12.525 OR 985.99.12.508 OR 985.99.12.427 OR 985.99.12.416 OR 985.99.12.405 1 1 N D - - - - Disposition Codes: D - Discard / N - New SERVICE BULLETIN Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 5 of 12 NOTE: The aircraft's existing APM options file ((TT60007950-XXXXX) can be re-used with Apex Build 6.0. A new option file is only required if enabling or disabling options. Refer to SB 42-003 if a new option file is required. NOTE: The FRED File software (P/N 531.30.24.033) consists of two files, a txt file and an .xml file. The content of each file is the same, only the format is different. Use the correct file format for the aircraft configuration: (2) Additional material to order from Pilatus 531.30.24.033 (See Notes below) PC-24 FRED File - FDR REV 8 - 531.30.24.017 OR 531.30.24.024 OR 531.30.24.026 1 1 N D - - - - • CVFDR installed - PC-24_FRED_File_Rev8.txt • CVR and FDR installed - PC-24_FRED_File_Rev8.xml New part No. Description Old part No. Qty Disp. code Fig Item 985.99.12.092 (Supplier P/N D202402004287 -r000) (See Note below) SW, PILOT GUIDE, APEX DFZ B6.0 (For aircraft with the Touch Screen Controller) - 985.99.12.526 OR 985.99.12.507 OR 985.99.12.429 OR 985.99.12.417 OR 985.99.12.396 1 1 N D - - - - OR Disposition Codes: D - Discard / N - New / R - Return to Pilatus New part No. Description Old part No. Qty Disp. code Fig Item Disposition Codes: D - Discard / N - New Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 6 of 12 SERVICE BULLETIN NOTE: As an alternative to updating aircraft documentation with a printed hard copy of the Honeywell Pilot Guide, it is acceptable to download the Pilot Guide via the Honeywell Pilot Gateway and carry it on board the aircraft in an electronic format. (3) Locally supplied materials Not applicable. D. Material necessary for each spare Not applicable. E. Re-identified parts Not applicable. F. Tools and equipment NOTE: Referenced AMM procedures may contain additional tools to be used. 985.99.12.609 (Supplier P/N D202402004288 -r000) (See Note below) SW, PILOT GUIDE, RF APEX DFZ B6.0 (For aircraft with the Multi- Function Controller) - 985.99.12.527 OR 985.99.12.509 OR 985.99.12.430 OR 985.99.12.425 OR 985.99.12.396 1 1 N D - - - - Tools and equipment Recommended Pilatus part • Laptop computer • CAT5E ethernet cable • Primus APEX Tools Disc (If necessary) (Downloadable from MyPilatus) • Local supply • Local supply • 985.99.12.424 (TM60000075-112) New part No. Description Old part No. Qty Disp. code Fig Item Disposition Codes: D - Discard / N - New / R - Return to Pilatus SERVICE BULLETIN Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 7 of 12 3. Accomplishment instructions WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ELECTRICAL SYSTEM OR A SYSTEM THAT USES ELECTRICAL POWER. MAKE SURE THAT IT IS SAFE BEFORE YOU APPLY ELECTRICAL POWER TO THE AIRCRAFT OR ENERGIZE THE AIRCRAFT ELECTRICAL SYSTEMS. ELECTRICAL POWER CAN CAUSE DEATH OR INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT. A. Preliminary instructions (1) For aircraft with the PM-CPDLC Factory Option installed, make sure that the Apex DFZ Build Information (listed below) is updated on the EUROCONTROL OneSky Online portal: • Apex DFZ Build 6.0= EB60000491-0108 Go to: https://ext.eurocontrol.int/auth4ulogin/login B. Preparation (1) Obey the safe maintenance practices as necessary. Refer to AMM PC24-A-E20-10-0003-00A-913A-A. (2) Connect a Ground Power Unit (GPU) to the aircraft and: • Energize the aircraft electrical system • Make sure that the GPU supplies power to the aircraft. Refer to AMM PC24-A-E24-00-0000-00A-913A-A. (3) Make sure that the aircraft is in safe maintenance mode. Refer to AMM PC24-A-E20-10-0003-01A-913A-A. C. Modification NOTE: The new version of the CMC Remote Terminal (RT) software is available on the Primus APEX Tools Disc (P/N 985.99.12.424). (1) APEX Software Load NOTE: The software load procedures for the APEX DFZ Build 6.0 software are part of the ‘Apex modular avionics unit - Load software procedure’ referenced below. (a) Do the full APEX DFZ software load procedure to load the software listed below: • APEX DFZ B6.0 software (P/N 985.99.12.566). Refer to AMM PC24-A-E45-45-0000-00A-750C-A for the applicable procedures. Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 8 of 12 SERVICE BULLETIN (2) Update the FRED File Software NOTE: For the FDR (optional) and the CVFDR (standard), the ethernet connection is on the maintenance panel. (a) On the laptop computer, set the Internet Protocol (IP) TCP/IPv4 network properties to: NOTE: The FRED File software (P/N 531.30.24.033) consists of two files, each with a different format. Use the correct file format for the aircraft configuration: (b) CVR and FDR (optional): 1 Use Firefox and navigate to 192.168.1.102. 2 Select the SETUP page, then click the BROWSE button on the upload A717 EDS file. 3 Select the applicable FRED file, then click the Upload EDS file button to upload the FRED file to the FDR. 4 Navigate to the Download page of the FDR web browser and click EDS file. 5 Click the Submit Download Request button and select the underlined link. 6 Click the SAVE AS button. 7 Make sure that the downloaded file is the same as the uploaded EDS file. (c) CVFDR (standard): 1 Use Firefox and navigate to 192.168.1.160. 2 On the Configure page, in the Installation Specific Information section, click the BROWSE button. NOTE: The upload will take approximately 5 seconds. It is possible that you will lose the connection to the ground-support interface home-page. 3 Click the Upload FRED File button. 4 Navigate to the CVFDR home page and click the Download button. 5 Make sure that the FRED file name and date/time of the upload are correct. • IP Address - 192.168.1.161 • Sub-Net - 255.255.255.0 • CVFDR (standard) - PC-24_FRED_File_Rev8.txt • CVR and FDR (optional) - PC-24_FRED_File_Rev8.xml SERVICE BULLETIN Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 9 of 12 D. Test (1) On the lower Multi-Function Display (MFD): (a) Select the lower left window and press Page on the MF Controller. (b) Select SCMS/DL. (c) On the SCMS/DL page, make sure that the Part Number shows as follows: E. Requirements after job completion (1) Remove all the equipment, tools and materials from the work area. Make sure that the work area is clean. (2) Do the Closeup practices. Refer to AMM PC24-A-E20-10-0004-00A-913A-A. F. Documentation (1) Make sure that you have the latest up-to-date Honeywell Pilot Guide: • D202402004287-r000) (P/N 985.99.12.092) - SW, PILOT GUIDE, APEX DFZ B6.0 (For aircraft with the Touch Screen Controller) OR • D202402004288-r000) (P/N 985.99.12.609) - SW, PILOT GUIDE, RF APEX DFZ B6.0 (For aircraft with the Multi-Function Controller). (2) Make sure that you have the latest Issue and Revision of AFM 02371 Temporary Revision TR 02371-081, or the subsequent approved AFM 02371 with the TR incorporated. (3) Make an entry in the Aircraft Logbook and AFM 02371 to record the incorporation of this Service Bulletin. (4) Make sure that the Aircraft Logbook shows any new Pilatus Part Number(s) and/or Serial Number(s), as applicable. (5) Make sure that all applicable Aircraft Documentation is updated. (6) Inform CAMP of the incorporation of this Service Bulletin and any new Pilatus Part Number(s) and/or Serial Number(s), as applicable. Send the completed feedback sheet to: fax@campsystems.com • APEX DFZ - P/N: EB60000491-0108 Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 10 of 12 SERVICE BULLETIN INTENTIONALLY BLANK SERVICE BULLETIN Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 11 of 12 Software Feedback Sheet for the Accomplishment of SB 42-026 The purpose of this software feedback sheet is to provide CAMP with the current information on each individual PC-24 aircraft. Please complete the grey cells as appropriate using black ink and block letters. Print out and send the completed feedback sheet to: fax@campsystems.com APEX Software Information FRED File Software Information CAMP Software Feedback Sheet (Sheet 1 of 2) Aircraft MSN Aircraft Registration Total Airframe Hours Service Center Total Landings Description SOFTWARE, APEX DFZ B6.0 CAMP Code, Task Number PC24AE00800100-0110 Old Part Numbers New Part Numbers Pilatus P/N Supplier P/N Pilatus P/N Supplier P/N 985.99.12.525 EB60000491-0107 985.99.12.566 EB60000491-0108 OR 985.99.12.508 EB60000491-0106 OR 985.99.12.427 EB60000491-0105 OR 985.99.12.416 EB60000491-0104 OR 985.99.12.405 EB60000491-0103 Description PC-24 FRED File - FDR REV 8 CAMP Code, Task Number PC24AE00800100-0412 Old Part Numbers New Part Numbers Pilatus P/N Supplier P/N Pilatus P/N Supplier P/N 531.30.24.017 - 531.30.24.033 - OR 531.30.24.024 - OR 531.30.24.026 - Service Bulletin No: 42-026 Date: Nov 03/25 Rev. No. 1 Date: Apr 01/26 Page 12 of 12 SERVICE BULLETIN Software feedback sheet cont'd. SB Accomplishment Information CAMP Software Feedback Sheet (Sheet 2 of 2) We have embodied/accomplished this SB Fully Partially The undersigned confirms the accomplishment of this Service Bulletin Date of accomplishment Name Signature Comments (procedure, kit quality, suggested improvements etc.)