AD 2003-16-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | plc RB211 Trent 800 Series | Airworthiness Directives; Rolls-Royce plc RB211 Trent 800 Series Turbofan Engines |
Unsafe Condition
Reports of two intermediate pressure (IP) turbine blade release incidents due to dust caps separating from the blades, leading to higher than predicted operating temperatures at the IP turbine disc rim and surrounding area due to inflow of annulus exhaust gases.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove IP turbine disc P/N FK21117 from service at or before accumulating 8,600 cycles-since-new (CSN), and remove IP turbine disc P/N FK33083 from service at or before accumulating 3,000 CSN. After the effective date, do not install any IP turbine discs exceeding these CSN limits.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the specified compliance cycles (8,600 CSN for P/N FK21117 and 3,000 CSN for P/N FK33083).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Rolls-Royce plc RB211 Trent 875-17, Trent 877-17, Trent 884-17, Trent 892-17, Trent 892B-17, and Trent 895-17 turbofan engines with intermediate pressure (IP) turbine discs part numbers FK21117 and FK33083 installed.
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
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