AD 2001-09-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Industrie A300 | Airworthiness Directives; Pratt and Whitney PW4000 Series Turbofan Engines |
Unsafe Condition
High pressure compressor (HPC) surge leading to multiple-engine power losses during critical phases of flight such as takeoff or climb.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Limit the number of PW4000 engines listed by serial number (SN) in this AD to no more than one engine with potentially reduced stability on each airplane within 10 cycles after the effective date. Remove certain PW4000 engines listed by SN before exceeding cyclic limits determined by airplane model or within 100 cycles-in-service (CIS) after the effective date, whichever occurs later. Remove certain PW4000 engines listed by SN within 100 cycles after the effective date if they have an HPC with 1,500 or more cycles-since-overhaul (CSO) greater than the high pressure turbine (HPT) CSO. Establish a minimum rebuild standard for engines returned to service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 10 cycles or 100 cycles-in-service (CIS) after the effective date, depending on the specific requirement.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Pratt and Whitney PW4050, PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4152, PW4156, PW4156A, PW4158, PW4160, PW4460, PW4462, and PW4650 turbofan engines installed on, but not limited to, certain models of Boeing 747, Boeing 767, Airbus Industrie A300, Airbus Industrie A310, and McDonnell Douglas MD-11 series airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.