AD 2011-23-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Rolls-Royce plc RB211-524G2-19; -524G2-T-19; -524G3-19; -524G3-T-19; 524H2-19; -524H2-T-19; -524H-36; and -524H-T-36 Turbofan Engines |
| engine | Rolls-Royce | plc RB211-524G2-19 | Airworthiness Directives; Rolls-Royce plc RB211-524G2-19; -524G2-T-19; -524G3-19; -524G3-T-19; 524H2-19; -524H2-T-19; -524H-36; and -524H-T-36 Turbofan Engines |
Unsafe Condition
Several instances of fan blade cracking have been reported. The results of the subsequent technical investigation concluded that the cracking was caused by fan blade flutter at certain engine settings during prolonged ground running.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 40 months after the effective date, modify the engine by installing a full-authority fuel controller (FAFC) featuring software at Issue 17, in accordance with Accomplishment Instructions paragraphs 3.A. through 3.B. of Rolls-Royce plc Alert Service Bulletin (ASB) No. RB.211-73-AG054, Revision 2, dated June 29, 2011. Engines modified before the effective date in accordance with previous revisions of ASB No. RB.211-73-AG054 are compliant. From the effective date, do not install an FAFC on an engine if the FAFC incorporates software prior to Issue 17.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 40 months after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Rolls-Royce plc RB211-524G2-19; -524G2-T-19; -524G3-19; -524G3-T-19; 524H2-19; -524H2-T-19; -524H-36; and -524H-T-36 turbofan engines.
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.