AD 2026-02-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | CFM | International | Airworthiness Directives; CFM International, S.A. Engines |
Unsafe Condition
aborted takeoffs after engines did not advance to the desired takeoff fan speed due to icing in the pressure sensor line, which, if not addressed, could result in loss of engine thrust control and reduced control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
At the next engine shop visit after the effective date of this AD, do the following actions: (1) Install electronic engine control (EEC) full authority digital electronic control (FADEC) software having part number (P/N) 2590M00P13, version L1A0850, or later approved version; and prognostic health monitoring (PHM) software having P/N 2784M64P08, version PL1A0850, or later approved version. Replace the pressure subsystem (PSS) with a newly designed heated PSS. Replace HJ6A and HJ6B harnesses with newly designed harnesses.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
At the next engine shop visit after the effective date of this AD
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Affected Aircraft
CFM International, S.A. (CFM) Model LEAP-1A23, LEAP-1A24, LEAP-1A24E1, LEAP-1A26, LEAP-1A26E1, LEAP-1A26CJ, LEAP-1A29, LEAP-1A29CJ, LEAP-1A30, LEAP-1A32, LEAP-1A33, LEAP-1A33B2, and LEAP-1A35A engines.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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