AD 2012-04-14

Recurring final rule
Data completeness: 70%

Airworthiness Directives; Rolls-Royce plc Turbofan Engines

AD Number
2012-04-14
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2011-0959
FR Citation
77 FR 20987

Applicability

TypeManufacturerModelDetails
engine Rolls-Royce plc Airworthiness Directives; Rolls-Royce plc Turbofan Engines

Unsafe Condition

Cracking in the front combustion liner head section of RB211-Trent 800 series turbofan engines.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect the front combustion liner head section for cracking at intervals not to exceed 2,000 flight cycles. If cracking is found, remove the front combustion liner head section from service at the next shop visit.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Within 2,000 flight cycles

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Rolls-Royce plc RB211-Trent 800 series 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

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