ROTORCRAFT FLIGHT MANUAL SUPPLEMENT TO THE AIRBUS HELICOPTERS MODELS EC130B4, EC130T2, AND AS350B3 w/Dual HYDRAULICS

required in the Rotorcraft Flight Manual (RFM) for all operations as defined in Section 5 of this supplement. Therefore no new performance charts are required for installation and operation of the IBF system. GENERAL INFORMATION Section 1 FEB 24 2022 Donaldson Company, Inc. RFM Supplement For 17891 Chesterfield Airport Road EC130B4, EC130T2, and Chesterfield, MO 63005 AS350B3 w/dual hydraulics AFS-EC130-IBF-FMS Page 5 of 14 FAA Approval Date: Revision: H TYPE OF OPERATION The installation of the IBF system does not change the existing operational restrictions listed in the basic Rotorcraft Flight Manual (RFM) or existing flight manual supplements. Refer to the Limitations Section of the RFM and/or supplements for Types of Operation, except as noted below. The installation of the IBF system allows the aircraft to operate in falling and blowing snow conditions. INSTRUMENT MARKINGS AND PLACARDS “IBF” placards (as shown above) are located (1) near the IBF 3-amp circuit breaker and (2) near the IBF cockpit indicator/switch. . NOTE “IBF” may be engraved or silk- screened in lieu of the placards The indicator/switch includes a push-button switch used to open/close the filter bypass and two indicator segments used to alert the pilot any time the filter is restricted or the affected bypass door is open. The upper segment of the indicator is labeled “FILTER” and will illuminate yellow/amber when the pressure differential across the respective engine inlet filter is above a preset value. The lower segment of the indicator is labeled “BYPASS” and will illuminate yellow/amber whenever the bypass door is in the full open position. NOTE: “FILTER” segment should extinguish when “BYPASS” segment illuminates indicating differential pressure is again within normal operating range. LIMITATIONS Section 2 IBF FEB 24 2022 Donaldson Company, Inc. RFM Supplement For 17891 Chesterfield Airport Road EC130B4, EC130T2, and Chesterfield, MO 63005 AS350B3 w/dual hydraulics AFS-EC130-IBF-FMS Page 6 of 14 FAA Approval Date: Revision: H Caution Lights (YELLOW/AMBER) Panel wording Fault condition Corrective action Illumination of “FILTER” segment of the cockpit indicator/switch indicates the pressure differential preset value for the inlet has been reached or exceeded. NOTE As the filter becomes more contaminated, certain flight conditions may cause “FILTER” segment to flicker intermittently. Corrective action should be taken only when the “FILTER” segment illumination is continuous. Illumination of “BYPASS” segment of the cockpit indicator/switch indicates the bypass door is open and the filter is being bypassed allowing un- filtered air to enter the engine. Monitor TOT or T4 for any significant rise, i.e. > 20o C. Monitor engine conditions for any indications of engine degradation or compressor stall, i.e. TOT or T4 fluctuations, and decreasing or fluctuating N1 rpm. If rise in TOT or T4 or the engine performance is unacceptable:  Open affected bypass door by pressing illuminated “FILTER” indicator/switch.  “BYPASS” segment of indicator/switch should illuminate and the “FILTER” segment of indicator/switch should extinguish indicating the bypass door is open and the pressure differential is back within the normal range. Service filter prior to next flight. NOTE If the “FILTER” light illuminates during take-off, recommend servicing filter before continuing flight. TO PREVENT COMPRESSOR EROSION AVOID (IF POSSIBLE) OPERATION IN CONTAMINATED ENVIRONMENT WITH THE BYPASS DOOR OPEN. If the flight or landing environment has significant dirt or debris, it is recommended that the bypass door be closed, provided no rotorcraft or engine limits will be exceeded. With the bypass closed, the “BYPASS’ segment will extinguish and the “FILTER” segment will potentially re-appear under high engine power settings until the filter has been cleaned. EMERGENCY/MALFUNCTION PROCEDURES Section 3 CAUTION FEB 24 2022 Donaldson Company, Inc. RFM Supplement For 17891 Chesterfield Airport Road EC130B4, EC130T2, and Chesterfield, MO 63005 AS350B3 w/dual hydraulics AFS-EC130-IBF-FMS Page 7 of 14 FAA Approval Date: Revision: H EMERGENCY AND MALFUNCTIONS PROCEDURES (cont.) ENVIRONMENTAL CONDITIONS Fault condition Corrective Action Inadvertent encounters with icing conditions Exit condition as soon as practical. ELECTRICAL Fault condition Corrective Action Tripped Circuit Breaker Monitor TOT or T4 for any significant rise, i.e. > 20o C. Monitor engine conditions for any indications of engine degradation or compressor stall, i.e. TOT or T4 fluctuations, and decreasing or fluctuating N1 rpm.  Contact maintenance after landing If rise in TOT or T4 or the engine performance is unacceptable, i.e. approaching engine limits:  Land as soon as practicable FEB 24 2022 Donaldson Company, Inc. RFM Supplement For 17891 Chesterfield Airport Road EC130B4, EC130T2, and Chesterfield, MO 63005 AS350B3 w/dual hydraulics AFS-EC130-IBF-FMS Page 8 of 14 FAA Approval Date: Revision: H PRE-FLIGHT CHECK FUSELAGE – CENTER 1. Ensure IBF environmental protective cover is removed. 2. Perform a visual check to verify that filter bypass door is closed. 3. Check IBF Filter Maintenance Aid (FMA) on the LH side forward of the firewall, to determine condition of the filter. When indicator enters RED zone (See Figure 4- 1 of this supplement), it is recommended filter be serviced per IBF Instructions for Continued Airworthiness, AFS-EC130- IBF-ICA. The FMA gives the operator an idea of the filter condition and can be used to determine filter contamination trends in various environmental conditions. As the filter become increasingly dirty, the yellow indicator will start moving toward the RED zone. 4. Check IBF filter element media for security and condition. If any element is torn, has a hole, or the pleats are flat, contact maintenance for disposition per the IBF ICA. NOTE: During high airspeeds (i.e. VH , VNE, etc.), it is possible that the FMA will show the indicator close to or into the RED zone. If this is the case, reset the FMA and check after the next flight. BEFORE FLIGHT WHEN OPERATING IN SNOW CONDITIONS 1. Thoroughly check cabin roof, intake cowling, and filter areas. All areas checked shall be clean and free of accumulated snow, slush, and ice before each flight. (Do not use a broom to brush snow off filter) 2. Ensure that the filter, by-pass door, and intake cowling are thoroughly clear of snow, slush, or ice before each flight. BEFORE FLIGHT WHEN HELICOPTER IS UNCOVERED AND EXPOSED TO RAIN 1. Check filter for standing water in between the pleats of the media. If standing water is observed, remove the filter, flip upside down, shake until water is removed and then reinstall filter. The IBF static port placard is located on the aft upper left hand corner of the cowling surrounding the static port. NORMAL PROCEDURES Section 4 FEB 24 2022 Donaldson Company, Inc. RFM Supplement For 17891 Chesterfield Airport Road Eurocopter EC130 and Chesterfield, MO 63005 AS350B3 w/dual hydraulics AFS-EC130-IBF-FMS Page 9 of 14 FAA Approval Date: Revision: H NORMAL PROCEDURES (cont.) Figure 4-1: FILTER MAINTENANCE AID – (ABOVE) “YELLOW Indicator” position relative to SAFE OPERATING ZONE (“GREEN Zone”) or SERVICE FILTER (“RED Zone”) markings defines current filter condition and pushing “YELLOW RESET Button” resets indicator. (BELOW) FMA unit is mounted to forward side of the firewall and can be viewed by opening the LH Lateral Cowling Assy. RED Zone GREEN Zone YELLOW Indicator GREEN Zone YELLOW RESET Button RED Zone YELLOW Indicator FMA Location FEB 24 2022 Donaldson Company, Inc. RFM Supplement For 17891 Chesterfield Airport Road Eurocopter EC130 and Chesterfield, MO 63005 AS350B3 w/dual hydraulics AFS-EC130-IBF-FMS Page 10 of 14 FAA Approval Date: Revision: H NOTE The Power Assurance Checks (PAC) procedures must be strictly followed in accordance with the Rotorcraft Flight Manual. For All EC130B4 and AS350B3 with Dual Hydraulics (with VEMD Programmed for Basic Inlet) – Excluding Helicopters with Arriel 2D Engines When the Inlet Barrier Filter (IBF) system STC is installed, and the VEMD is programmed for the Basic Inlet, use the basic inlet Engine Power Check (EPC) chart to determine engine health. If the EPC is satisfactory then basic performance can be obtained and the basic performance data charts are applicable. If the engine health check is not satisfactory then either clean the filter and recheck the engine health using the basic Engine Power Check chart or manually recheck the engine health using the Sand Filter Engine Power Check chart located in the Sand Filter supplement. If the filter was cleaned and the EPC recheck is satisfactory then basic performance can be obtained and the basic performance data charts are applicable. If the engine was checked manually using the Sand Filter charts and found to be satisfactory, then Sand Filter Performance can be achieved. If the engine health check is still not satisfactory then contact maintenance for trouble-shooting. NOTE With the Vehicle Engine Management Display (VEMD) programmed for a Basic Inlet: if the engine health check is unsatisfactory for Basic Inlet EPC and the Sand Filter performance data is to be used, (located in the Sand Filter Sup- plement), the performance requirements must then be determined manually. For All EC130B4 and AS350B3 with Dual Hydraulics (with VEMD Programmed for Sand Filter) – Excluding Helicopters with Arriel 2D Engines If the engine is checked using the Sand Filter charts and EPC was found to be satisfactory Sand Filter performance can be obtained and the Sand Filter performance data charts are applicable. If the engine health check is not satisfactory then clean the filter and recheck the engine health using the Sand Engine Power Check chart or manually recheck the engine using the Sand Filter charts. If the engine still is not satisfactory, then contact maintenance for trouble-shooting. PERFORMANCE Section 5 FEB 24 2022 Donaldson Company, Inc. RFM Supplement For 17891 Chesterfield Airport Road Eurocopter EC130 and Chesterfield, MO 63005 AS350B3 w/dual hydraulics AFS-EC130-IBF-FMS Page 11 of 14 FAA Approval Date: Revision: H PERFORMANCE (cont.) For EC130T2 with Arriel 2D Engine Only When the Inlet Barrier Filter (IBF) system STC is installed, the VEMD is programmed for Basic Inlet. After performing an EPC, correct the results on VEMD:  Add 4% on TRQ MARGIN / N1 displayed: Engine Health / N1 = TRQ MARGIN / N1 + 4  Remove 2% of TRQ MARGIN / TOT displayed: Engine Health / TOT = TRQ MARGIN / TOT - 2 If the Engine Health obtained are satisfactory (>=0), then:  The engine health is ensured.  The Hover performances are decreased and the basic Hover performance charts have to be considered with application of the following penalties: - HIGE 5ft:  Zp > 5000ft: remove 25 kg  Zp ≤ 5000ft: no penalty - HOGE:  Zp > 3000ft: remove 30 kg  Zp ≤ 3000ft: no penalty - HOGE with external load:  Remove 35 kg  The Basic Rate of Climb performance is decreased. Remove 290 ft/min to the Basic Rate of Climb performance charts result. If one of the Engine Health is not satisfactory (<0), then clean the filter and recheck the engine health following the above procedure. If the cleaning of the filter is not possible, and Engine Health is not satisfactory, then check the maintenance aid indicator:  If indicator >= 6 then: - Add 6% on TRQ MARGIN / N1 displayed: Engine Health / N1 = TRQ MARGIN / N1 + 6 - No correction of TRQ MARGIN / TOT displayed: Engine Health / TOT = TRQ MARGIN / TOT  If indicator >= 10 then: - Add 9% on TRQ MARGIN / N1 displayed: Engine Health / N1 = TRQ MARGIN / N1 + 9 - Add 3% on TRQ MARGIN / TOT displayed: Engine Health / TOT = TRQ MARGIN / TOT + 3 If the Engine Health is still not satisfactory then contact maintenance for troubleshooting. FEB 24 2022 Donaldson Company, Inc. RFM Supplement For 17891 Chesterfield Airport Road Eurocopter EC130 and Chesterfield, MO 63005 AS350B3 w/dual hydraulics AFS-EC130-IBF-FMS Page 12 of 14 FAA Approval Date: Revision: H PERFORMANCE (cont.) For AS350B3 with Arriel 2D Engine Only – Including Helicopters with VEMD Power Increase “H125 Power” (MOD EC07.5102) When the Inlet Barrier Filter (IBF) system STC is installed, the VEMD is programmed for Basic Inlet. After performing an EPC, correct the results on VEMD:  Add 3% on TRQ MARGIN / N1 displayed: Engine Health / N1 = TRQ MARGIN / N1 + 3  Remove 3% of TRQ MARGIN / TOT displayed: Engine Health / TOT = TRQ MARGIN / TOT - 3 If the Engine Health obtained are satisfactory (>=0), then:  The engine health is ensured.  The Hover basic performances are ensured and the basic Hover performance data charts are applicable.  The Basic Rate of Climb performance is decreased. Remove 140 ft/min to the Basic Rate of Climb performance charts result. If one of the Engine Health is not satisfactory (<0), then clean the filter and recheck the engine health following the above procedure. If the cleaning of the filter is not possible, and Engine Health is not satisfactory, then check the maintenance aid indicator:  If indicator >= 6 then: - Add 4% on TRQ MARGIN / N1 displayed: Engine Health / N1 = TRQ MARGIN / N1 + 4 - No correction of TRQ MARGIN / TOT displayed: Engine Health / TOT = TRQ MARGIN / TOT  If indicator >= 10 then: - Add 5% on TRQ MARGIN / N1 displayed: Engine Health / N1 = TRQ MARGIN / N1 + 5 - Add 2% on TRQ MARGIN / TOT displayed: Engine Health / TOT = TRQ MARGIN / TOT + 2 If the Engine Health is still not satisfactory then contact maintenance for troubleshooting. FEB 24 2022 Donaldson Company, Inc. RFM Supplement For 17891 Chesterfield Airport Road Eurocopter EC130 and Chesterfield, MO 63005 AS350B3 w/dual hydraulics AFS-EC130-IBF-FMS Page 13 of 14 FAA Approval Date: Revision: H PERFORMANCE (cont.) For All Aircraft Helicopter performance is reduced as the IBF becomes contaminated with dirt, dust and debris. The pilot/operator is responsible to utilize the Engine Power Check (EPC) to determine if the engine can produce installed power. If engine does not pass EPC, published performance cannot be achieved. The frequency at which EPCs are conducted is up to the discretion of the operator based on the operating environment, (i.e. temperature, altitude, airborne contaminate) and the requirements of the Flight Manual or applicable Flight Manual Supplement. Contact maintenance for appropriate trouble shooting procedures as outlined in applicable Instructions for Continued Airworthiness or Maintenance Manuals. Ensure that the IBF FILTER caution lights are not illuminated during performance of the EPC. CAUTION FEB 24 2022 Donaldson Company, Inc. RFM Supplement For 17891 Chesterfield Airport Road Eurocopter EC130 and Chesterfield, MO 63005 AS350B3 w/dual hydraulics AFS-EC130-IBF-FMS Page 14 of 14 FAA Approval Date: Revision: H WEIGHT AND BALANCE No Change WEIGHT AND BALANCE Section 6 FEB 24 2022