Bombardier Inc. Airworthiness Directives

818 ADs indexed for Bombardier Inc. aircraft.

Models

DHC-8-102 127 ADs CL-600-2B19 (Regional Jet Series 100) 125 ADs DHC-8-103 124 ADs DHC-8-106 119 ADs DHC-8-301 117 ADs DHC-8-311 117 ADs DHC-8-315 112 ADs CL-600-2B19 (Regional Jet Series 440) 102 ADs DHC-8-401 102 ADs DHC-8-402 102 ADs DHC-8-400 97 ADs DHC-8-201 89 ADs DHC-8-202 89 ADs CL-600-2B16 (CL-604) 82 ADs CL-600-2C10 (Regional Jet Series 700) 81 ADs CL-600-2C10 (Regional Jet Series 701) 81 ADs CL-600-2D24 (Regional Jet Series 900) 75 ADs CL-600-2C10 (Regional Jet Series 702) 73 ADs CL-600-2B16 (CL-601-3A) 71 ADs CL-600-2B16 (CL-601-3R) 71 ADs CL-600-1A11 (CL-600) 69 ADs DHC-8-101 68 ADs CL-600-2D15 (Regional Jet Series 705) 67 ADs CL-600-2A12 (CL-601) 64 ADs BD-700-1A10 52 ADs BD-700-1A11 49 ADs BD-100-1A10 (Challenger 300) 40 ADs CL-44D4 39 ADs CL-600-2E25 (Regional Jet Series 1000) 33 ADs CL-44J 22 ADs CL-215-1A10 20 ADs BD-700-2A12 16 ADs CL-215-6B11 (CL-215T Variant) 15 ADs CL-215-6B11 (CL-415 Variant) 14 ADs BD-100-1A10 10 ADs CL-600-2B16 (604 Variant) 7 ADs DHC-7-100 6 ADs DHC-7-101 6 ADs DHC-7-102 6 ADs DHC-7-103 6 ADs DHC-8-102 6 ADs DHC-8-103 6 ADs DHC-8-301 6 ADs DHC-8-311 6 ADs DHC-7-1 5 ADs DHC-8-101 5 ADs DHC-8-106 5 ADs DHC-8-201 5 ADs DHC-8-202 5 ADs DHC-8-315 5 ADs CL-600-2A12 (601) 4 ADs CL-600-2B16 (601-3A Variant) 4 ADs CL-600-2B16 (601-3R Variant) 4 ADs CL-600-1A11 (600) 3 ADs DHC-3 3 ADs Various 2 ADs Various 2 ADs 328-100 1 AD 328-300 1 AD A320-111 1 AD A320-211 1 AD A320-212 1 AD A320-214 1 AD A320-231 1 AD A320-232 1 AD A320-233 1 AD A330-201 1 AD 328-100 1 AD 328-300 1 AD 560 1 AD 560XL 1 AD 650 1 AD BD-700-1A10 1 AD CL-215-6B11 (CL-415 Variant) 1 AD EMB-135BJ (Legacy 600) 1 AD Jetstream Model 4101 1 AD Mystere-Falcon 50 1 AD DHC-8-101 1 AD DHC-8-102 1 AD DHC-8-103 1 AD DHC-8-106 1 AD DHC-8-201 1 AD DHC-8-202 1 AD DHC-8-301 1 AD DHC-8-311 1 AD DHC-8-315 1 AD Pilot and Co-Pilot Seats 1 AD ATR42-200 1 AD ATR42-300 1 AD ATR42-320 1 AD ATR42-500 1 AD DHC-8-101 1 AD DHC-8-102 1 AD DHC-8-103 1 AD DHC-8-106 1 AD DHC-8-201 1 AD DHC-8-202 1 AD ATR42-200 1 AD ATR42-300 1 AD ATR42-320 1 AD ATR42-500 1 AD DHC-8-101 1 AD DHC-8-102 1 AD DHC-8-103 1 AD DHC-8-106 1 AD DHC-8-201 1 AD DHC-8-202 1 AD ATR42-200 1 AD ATR42-300 1 AD ATR42-320 1 AD ATR42-500 1 AD ATR72-101 1 AD ATR72-102 1 AD ATR72-201 1 AD ATR72-202 1 AD ATR72-211 1 AD ATR72-212 1 AD 727-100 Series 1 AD A310-203 1 AD A310-204 1 AD A310-221 1 AD A310-222 1 AD A310-304 1 AD A310-322 1 AD A310-324 1 AD A310-325 1 AD Fluorescent lighting systems 1 AD A300 B2-1A 1 AD A300 B2-1C 1 AD A300 B2-203 1 AD A300 B2K-3C 1 AD A300 B4-103 1 AD A300 B4-203 1 AD A300 B4-2C 1 AD A300 B4-601 1 AD A300 B4-603 1 AD A300 B4-605R 1 AD A300 B2-1A 1 AD A300 B2-1C 1 AD A300 B2-203 1 AD A300 B2K-3C 1 AD A320-111 1 AD A320-211 1 AD A320-212 1 AD A320-214 1 AD A320-231 1 AD A320-232 1 AD 737-300 Series 1 AD 737-400 Series 1 AD 737-500 Series 1 AD 737-700 Series 1 AD 737-800 Series 1 AD 737-900ER Series 1 AD 757-200 Series 1 AD 767-200 Series 1 AD 767-300 Series 1 AD 777-200LR Series 1 AD A318-111 1 AD A318-112 1 AD A319-111 1 AD A319-112 1 AD A319-114 1 AD A319-115 1 AD A319-132 1 AD A320-211 1 AD A320-212 1 AD A320-214 1 AD A320-231 1 AD A320-232 1 AD A320-251N 1 AD A321-211 1 AD A321-231 1 AD A321-232 1 AD A321-251N 1 AD A321-253N 1 AD A330-202 1 AD A330-223 1 AD A330-243 1 AD A330-322 1 AD A330-343 1 AD A340-312 1 AD A340-313 1 AD ATR42-500 1 AD ATR72-212 1 AD ATR72-212A 1 AD CL-600-2B16 (CL-601-3A) 1 AD CL-600-2B16 (CL-601-3R) 1 AD CL-600-2B16 (CL-604) 1 AD CL-600-2C10 (Regional Jet Series 700) 1 AD CL-600-2C10 (Regional Jet Series 701) 1 AD CL-600-2C10 (Regional Jet Series 702) 1 AD DHC-8-202 1 AD DHC-8-311 1 AD DHC-8-315 1 AD DHC-8-402 1 AD F27 Mark 050 1 AD F28 Mark 0070 1 AD F28 Mark 0100 1 AD F28 Mark 3000 1 AD A319-111 1 AD A319-112 1 AD A319-113 1 AD A319-114 1 AD A319-115 1 AD A319-131 1 AD A319-132 1 AD A319-133 1 AD A320-111 1 AD A320-211 1 AD A300 B2-1A 1 AD A300 B2-1C 1 AD A300 B2-203 1 AD A300 B2K-3C 1 AD A300 B4-103 1 AD A300 B4-203 1 AD A300 B4-2C 1 AD A300 B4-601 1 AD A300 B4-603 1 AD A300 B4-605R 1 AD A300 B2-1A 1 AD A300 B2-1C 1 AD A300 B2-203 1 AD A300 B2K-3C 1 AD A300 B4-103 1 AD A300 B4-203 1 AD A300 B4-2C 1 AD A300 B4-601 1 AD A300 B4-603 1 AD A300 B4-605R 1 AD A340-211 1 AD A340-212 1 AD A340-213 1 AD A340-311 1 AD A340-312 1 AD A340-313 1 AD A340-541 1 AD A340-642 1 AD ATR42-200 1 AD Traffic Alert and Collision Avoidance System II processors 1 AD A300 B2-1A 1 AD A300 B2-1C 1 AD A300 B2-203 1 AD A300 B2K-3C 1 AD A300 B4-103 1 AD A300 B4-203 1 AD A300 B4-2C 1 AD A300 B4-601 1 AD A300 B4-603 1 AD A300 B4-605R 1 AD A300 B4-601 1 AD A300 B4-603 1 AD A300 B4-605R 1 AD A300 B4-620 1 AD A300 B4-622 1 AD A300 B4-622R 1 AD A300 C4-605R Variant F 1 AD A300 F4-605R 1 AD A300 F4-622R 1 AD A310-203 1 AD A300 B2-1A 1 AD A300 B2-1C 1 AD A300 B2-203 1 AD A300 B2K-3C 1 AD A300 B4-103 1 AD A300 B4-203 1 AD A300 B4-2C 1 AD A300 B4-601 1 AD A300 B4-603 1 AD A300 B4-605R 1 AD A300 B2-1A 1 AD A300 B2-1C 1 AD A300 B2-203 1 AD A300 B2K-3C 1 AD A300 B4-103 1 AD A300 B4-203 1 AD A300 B4-2C 1 AD A300 B4-601 1 AD A300 B4-603 1 AD A300 B4-605R 1 AD DHC-8-101 1 AD DHC-8-102 1 AD DHC-8-103 1 AD DHC-8-106 1 AD DHC-8-201 1 AD DHC-8-202 1 AD DHC-8-301 1 AD DHC-8-311 1 AD DHC-8-315 1 AD Pilot and Co-Pilot seats 1 AD ATP 1 AD CL-600-2A12 (CL-601) 1 AD DHC-8-101 1 AD DHC-8-102 1 AD DHC-8-103 1 AD DHC-8-106 1 AD DHC-8-201 1 AD DHC-8-202 1 AD DHC-8-301 1 AD DHC-8-311 1 AD 707-100 Long Body 1 AD 707-100B Long Body 1 AD 707-100B Short Body 1 AD ATP 1 AD Avro 146-RJ100A 1 AD Avro 146-RJ70A 1 AD Avro 146-RJ85A 1 AD BAe 146-100A 1 AD BAe 146-200A 1 AD BAe 146-300A 1 AD 707-100 Long Body 1 AD 707-100B Long Body 1 AD 707-100B Short Body 1 AD 707-200 1 AD 707-300 Series 1 AD 707-300B Series 1 AD 707-300C Series 1 AD 707-400 Series 1 AD HS 748 Series 2A 1 AD HS 748 Series 2B 1 AD CL-600-2C11 (Regional Jet Series 550) 1 AD DHC-6-1 1 AD DHC-6-400 1 AD CL-600-2B19 (Regional Jet Series 100) 1 AD CL-600-2B19 (Regional Jet Series 440) 1 AD CL-600-2C10 (Regional Jet Series 700) 1 AD CL-600-2C10 (Regional Jet Series 701) 1 AD CL-600-2C10 (Regional Jet Series 702) 1 AD CL-600-2D15 (Regional Jet Series 705) 1 AD CL-600-2D24 (Regional Jet Series 900) 1 AD CL-600-2E25 (Regional Jet Series 1000) 1 AD CP-55 1 AD 550 1 AD 551 1 AD DHC-8-101 1 AD DHC-8-102 1 AD DHC-8-103 1 AD DHC-8-106 1 AD DHC-8-301 1 AD DHC-8-311 1 AD DHC-8-315 1 AD Jetstream Series 3101 1 AD 208 1 AD 310F 1 AD 310G 1 AD 310H 1 AD 310I 1 AD 310J 1 AD 310K 1 AD CL-215-1A10 1 AD CL-215-6B11 (CL-215T Variant) 1 AD CL-215-6B11 (CL-415 Variant) 1 AD 550 1 AD 560 1 AD 650 1 AD BD-700-1A10 1 AD BD-700-1A11 1 AD EMB-135BJ (Legacy 600) 1 AD EMB-135BJ (Legacy 650) 1 AD EMB-135ER 1 AD FALCON 2000EX 1 AD Falcon 900EX 1 AD ATR42-200 1 AD ATR42-300 1 AD ATR42-320 1 AD ATR42-500 1 AD ATR72-101 1 AD ATR72-102 1 AD ATR72-201 1 AD ATR72-202 1 AD ATR72-211 1 AD ATR72-212 1 AD 390 1 AD 525 1 AD 525A 1 AD Adaptive Flight Display Units 1 AD CL-600-2A12 (CL-601) 1 AD Hawker 800XP 1 AD Mystere-Falcon 20 - F5 1 AD Mystere-Falcon 50 1 AD ATR42-300 1 AD DHC-8-101 1 AD DHC-8-102 1 AD DHC-8-103 1 AD DHC-8-106 1 AD DHC-8-201 1 AD DHC-8-202 1 AD DHC-8-301 1 AD DHC-8-311 1 AD DHC-8-315 1 AD 208 1 AD 310F 1 AD 310G 1 AD 310H 1 AD 310I 1 AD 310J 1 AD 310K 1 AD CL-215-1A10 1 AD CL-215-6B11 (CL-215T Variant) 1 AD CL-215-6B11 (CL-415 Variant) 1 AD BAe.125 Series 800A 1 AD CL-600-2A12 (CL-601) 1 AD Computer 1 AD G-IV 1 AD Mystere-Falcon 900 1 AD BAe.125 Series 800A 1 AD BAe.125 Series 800A (C-29A) 1 AD BAe.125 Series 800A (U-125) 1 AD CL-600-2B16 (CL-601-3A) 1 AD CL-600-2B16 (CL-601-3R) 1 AD CL-600-2B16 (CL-604) 1 AD G-1159A 1 AD G-IV 1 AD GV 1 AD Mystere-Falcon 900 1 AD CL-600-1A11 (CL-600) 1 AD CL-600-2A12 (CL-601) 1 AD CL-600-2B16 (CL-601-3A) 1 AD CL-600-2B16 (CL-601-3R) 1 AD CL-600-2B16 (CL-604) 1 AD G-1159 1 AD Mystere-Falcon 20 - C5 1 AD Mystere-Falcon 20 - D5 1 AD Mystere-Falcon 20 - E5 1 AD Mystere-Falcon 20 - F5 1 AD ATR42-200 1 AD ATR42-300 1 AD ATR42-320 1 AD ATR42-500 1 AD ATR72-101 1 AD ATR72-102 1 AD ATR72-201 1 AD ATR72-202 1 AD ATR72-211 1 AD ATR72-212 1 AD BD-100-1A10 (Challenger 300) 1 AD BD-500-1A10 1 AD BD-500-1A11 1 AD BD-700-1A10 1 AD BD-700-1A11 1 AD CL-600-2B16 (CL-601-3A) 1 AD CL-600-2B16 (CL-601-3R) 1 AD CL-600-2B16 (CL-604) 1 AD CL-600-2C10 (Regional Jet Series 700) 1 AD CL-600-2D24 (Regional Jet Series 900) 1 AD DHC-8-101 1 AD DHC-8-102 1 AD DHC-8-103 1 AD DHC-8-106 1 AD DHC-8-201 1 AD DHC-8-202 1 AD DHC-8-301 1 AD DHC-8-311 1 AD DHC-8-315 1 AD DHC-8-400 1 AD CL-600-2B19 (Regional Jet Series 100) 1 AD CL-600-2B19 (Regional Jet Series 440) 1 AD P/N 299K63-1 1 AD S/N 01867xxx through 02737xxx 1 AD Aviation Tires 1 AD BD-700-1A10 1 AD BD-700-1A11 1 AD G-1159 1 AD G-1159A 1 AD G-1159B 1 AD G-IV 1 AD GIV-X 1 AD GV 1 AD GV-SP 1 AD DHC-8-101 1 AD DHC-8-102 1 AD DHC-8-103 1 AD DHC-8-106 1 AD DHC-8-201 1 AD DHC-8-202 1 AD DHC-8-301 1 AD DHC-8-311 1 AD DHC-8-315 1 AD DHC-8-400 1 AD Auxiliary Power Unit (APU) 1 AD CL-600-2C10 (Regional Jet Series 700) 1 AD CL-600-2C10 (Regional Jet Series 701) 1 AD CL-600-2C10 (Regional Jet Series 702) 1 AD 340 1 AD 440 1 AD DHC-8-101 1 AD DHC-8-102 1 AD DHC-8-103 1 AD DHC-8-106 1 AD DHC-8-301 1 AD DHC-8-311 1 AD DHC-8-315 1 AD Military C-131B 1 AD ATR42-200 1 AD ATR42-300 1 AD ATR42-320 1 AD ATR42-500 1 AD DHC-8-101 1 AD DHC-8-102 1 AD DHC-8-103 1 AD DHC-8-106 1 AD DHC-8-201 1 AD DHC-8-202 1 AD 400A 1 AD 400T 1 AD CL-600-2B16 (CL-604) 1 AD CL-600-2B19 (Regional Jet Series 100) 1 AD Flight Management Computers 1 AD DHC-8-400 1 AD DHC-8-401 1 AD DHC-8-402 1 AD 525B 1 AD B200 1 AD B200C 1 AD B200CGT 1 AD B200GT 1 AD B300 1 AD B300C 1 AD C90GTi 1 AD CL-600-2B16 (CL-604) 1 AD FDSA-6500 1 AD 18 1 AD 23 1 AD 35 1 AD 36 1 AD 50 1 AD 58 1 AD 60 1 AD 65 1 AD 70 1 AD 76 1 AD 727 Series 1 AD 727-100 Series 1 AD 727-200 Series 1 AD 737-200 Series 1 AD 737-200C Series 1 AD 737-300 Series 1 AD 737-400 Series 1 AD 737-500 Series 1 AD 737-700 Series 1 AD 737-800 Series 1 AD 757-200 Series 1 AD 767-200 Series 1 AD CL-600-2B19 (Regional Jet Series 100) 1 AD CL-600-2B19 (Regional Jet Series 440) 1 AD DC-8-62 1 AD DC-9-33F 1 AD DC-9-81 (MD-81) 1 AD DC-9-82 (MD-82) 1 AD DC-9-83 (MD-83) 1 AD DC-9-87 (MD-87) 1 AD 717-200 1 AD CL-600-2C10 (Regional Jet Series 700) 1 AD CL-600-2C10 (Regional Jet Series 701) 1 AD CL-600-2C10 (Regional Jet Series 702) 1 AD CL-600-2D24 (Regional Jet Series 900) 1 AD DHC-8-400 1 AD DHC-8-401 1 AD DHC-8-402 1 AD EMB-145XR 1 AD MD-90-30 1 AD 737-100 Series 1 AD 737-200 Series 1 AD 737-200C Series 1 AD 737-300 Series 1 AD 737-400 Series 1 AD 737-500 Series 1 AD 737-600 Series 1 AD 737-700 Series 1 AD 737-700C Series 1 AD 737-800 Series 1 AD AC32 1 AD AS332C 1 AD AS332C1 1 AD AS332L 1 AD AS332L1 1 AD AS332L2 1 AD CN-235 1 AD CN-235-100 1 AD CN-235-200 1 AD CN-235-300 1 AD

Recent ADs

2026-07-01

final rule

Airworthiness Directives; Bombardier Inc. Airplanes

Unsafe Condition: uncommanded nose wheel steering due to loose nosewheel steering rudder pedal potentiometer universal coupling setscrews

Effective: May 8, 2026 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bombardier Inc. Airplanes

Technical illustration of an aircraft flight control surface and actuator
Problem area Flight controls

2025-14-51

final rule

Airworthiness Directives; Bombardier Inc. Airplanes

Unsafe Condition: Discrepancies in the locking features on certain network interfaces could result in unapproved access to these network interfaces.

Effective: Mar 4, 2026 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bombardier Inc. Airplanes

2026-02-06

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: The overhaul required by certificate maintenance requirement (CMR) task 27-40-00-104* was not fully completed on some units, resulting in some parts that were required to be replaced on the affecte...

Effective: Feb 25, 2026 Category: aircraft Compliance: Within 50 flight hours

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

2026-01-07

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: Potential structural, control system, and navigational system failures could result in loss of control of the airplane.

Effective: Feb 20, 2026 Category: aircraft Compliance: Within 12 months of the effective date (February 20, 2026).

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

2025-24-11

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: An accumulation of fuel in the APU muffler caused by a drainage block in the muffler, which could lead to an uncontrolled fire in the APU bay.

Effective: Jan 16, 2026 Category: aircraft Compliance: Within 90 work-hours

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

2025-22-04

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: The flap system on-board recorder (FSOBR) interfaces with the flap control unit signals, causing the flap control unit monitors to trip, resulting in Flap Fail messages and possibly an uncommanded ...

Effective: Dec 23, 2025 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

2025-17-12

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: unsafe condition on these products.

Effective: Oct 31, 2025 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

2025-17-08 Recurring

final rule

Airworthiness Directives; Viking Air Limited (Type Certificate Previously Held by Bombardier Inc. and de Havilland, Inc.) Airplanes

Unsafe Condition: a missing stabilizer actuator lock ring, which can cause the stabilizer actuator clamp nut to separate from the stabilizer barrel by unthreading, resulting in a reduction or loss of pitch control d...

Effective: Sep 29, 2025 Category: aircraft Compliance: Within 330 hours time-in-service after the effective date of this AD

Why matched: Airworthiness Directives; Viking Air Limited (Type Certificate Previously Held by Bombardier Inc. and de Havilland, Inc.) Airplanes

Technical illustration of an aircraft flight control surface and actuator
Problem area Flight controls

2025-16-07

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: The clearance between therapeutic flexible oxygen hoses and electrical harnesses may be non-compliant to design requirements, and positive separation mechanisms and appropriate protective barriers ...

Effective: Sep 18, 2025 Category: aircraft Compliance: Within 12 months of the effective date (September 18, 2025)

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

2025-13-04

final rule

Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier Inc.) Airplanes

Unsafe Condition: Prematurely worn teeth on a rubber bull gear (RBG) wheel in the horizontal stabilizer trim actuator (HSTA) could cause a failure of the horizontal stabilizer trim system.

Effective: Aug 5, 2025 Category: engine Compliance: Within 50 flight hours after the effective date of this AD.

Why matched: Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier Inc.) Airplanes

2025-12-01

final rule

Airworthiness Directives; Bombardier Inc. Airplanes

Unsafe Condition: Incorrect information was found in certain calculation tables in the AFM addressing slat-flap conditions, leading to incorrect speed adders and landing distance factors.

Effective: Jul 17, 2025 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bombardier Inc. Airplanes

2025-07-09

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: The portable oxygen bottle installation's upper bracket latch assembly can catch on the pressure gauge tube or on the pressure gauge bezel of the portable oxygen bottle.

Effective: Jul 2, 2025 Category: aircraft Compliance: Within 50 flight hours after July 2, 2025

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

2025-07-11

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: engine-driven pump hydraulic pressure hoses for hydraulic systems number 1 and 2 chafing against the pylon in the aft equipment bay

Effective: Jul 2, 2025 Category: engine Compliance: Within 50 flight hours

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

2025-09-04

final rule

Airworthiness Directives; Bombardier Inc. Airplanes

Unsafe Condition: Failure to adhere to the specified airworthiness limitations could adversely affect the stability and controllability of the airplane on landing and could result in damage to the airplane.

Effective: Jun 6, 2025 Category: aircraft Compliance: Within 60 days after the effective date of this AD (June 6, 2025).

Why matched: Airworthiness Directives; Bombardier Inc. Airplanes

2025-07-01

final rule

Airworthiness Directives; Thommen Aircraft Equipment AG Digital Air Data Computers

Unsafe Condition: Occurrences of AC32 Digital ADCs that stopped functioning due to the power module failing at temperatures below -20 degrees Celsius.

Effective: May 15, 2025 Category: aircraft Compliance: Within 12 months after the effective date of this AD

Why matched: Airworthiness Directives; Thommen Aircraft Equipment AG Digital Air Data Computers

2025-04-08

final rule

Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier Inc.) Airplanes

Unsafe Condition: 5G C-Band broadband interference can result in certain failure messages and aural alerts being inhibited longer than intended, leading to delayed flightcrew response and potential loss of continued...

Effective: Apr 25, 2025 Category: aircraft Compliance: Within 12 months after the effective date of this AD.

Why matched: Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier Inc.) Airplanes

2025-04-11

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: A partial loss of thrust after an engine failure during an RNP-AR approach under certain WAT conditions may lead to a descent below 75 feet of the path guidance, requiring a go-around. The resultan...

Effective: Apr 8, 2025 Category: engine Compliance: Within 30 days after the effective date of this AD.

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2025-02-01

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: uncommanded horizontal stabilizer motion during several in-service events caused by a problem with the trim switch wiring

Effective: Mar 17, 2025 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

Technical illustration of an aircraft electrical generator and wiring assembly
Problem area Electrical system

2024-26-09 Recurring

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: sand contamination and corrosion of the elevator torque tube bearings, which could lead to binding or seizure of the bearings, and potentially lead to a reduction in or loss of airplane pitch control.

Effective: Mar 11, 2025 Category: aircraft Compliance: Within 90 days after March 11, 2025

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

Technical illustration of an aircraft flight control surface and actuator
Problem area Flight controls

2024-18-06

final rule

Airworthiness Directives; Bombardier, Inc., Airplanes

Unsafe Condition: The pivot door pressure seals on the thrust reverser fixed structure were found disbonded or missing on several airplanes. This could result in engine thrust loss due to flow path overboard leakage...

Effective: Jan 23, 2025 Category: aircraft Compliance: Within 750 flight hours or 18 months, whichever comes first from the effective date of this AD.

Why matched: Airworthiness Directives; Bombardier, Inc., Airplanes

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