AD 2013-19-21
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | plc | Airworthiness Directives; Rolls-Royce plc Turbofan Engines |
Unsafe Condition
detect cracks in the HP compressor stage 1 and 2 disc posts, which could result in failure of the disc post and HP compressor blades, damage to the engine, and damage to the airplane.
Required Actions
Comply with this AD within the compliance time specified in paragraph (f) of this AD. For the purpose of this AD, an ``engine shop visit'' is whenever the HP compressor rotor is accessible and the compressor blades have been removed. Inspect the axial dovetail slots of the HP compressor stage 1 to 4 rotor disc for any signs of cracking. If any signs of cracking are found, follow the applicable corrective action in the service information specified in paragraph (g) of this AD.
Compliance Time
Within 50 flight hours after the effective date of this AD
Affected Aircraft
Rolls-Royce plc (RR) model turbofan engines that have a high-pressure (HP) compressor stage 1 to 4 rotor disc installed, with a part number (P/N) listed in Table 1 to paragraph (c) of this AD: RB211 Trent 553-61, 553A2-61, 556-61, 556A2-61, 556B-61, 556B2-61, 560-61, and 560A2-61; and RB211 Trent 768-60, 772-60, and 772B-60; and RB211-Trent 875-17, 877-17, 884-17, 884B-17, 892-17, 892B-17, and 895-17; and RB211-524G2-T-19, -524G3-T-19, -524H-T-36, and -524H2-T-19.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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