AD 2012-26-14

final rule
Data completeness: 70%

Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines

AD Number
2012-26-14
Status
final_rule
Effective Date
Product Category
engine
Docket
Docket No. FAA-2012-1202
FR Citation
78 FR 2195

Applicability

TypeManufacturerModelDetails
aircraft Rolls-Royce Deutschland Ltd & Co KG Turbofan Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines

Unsafe Condition

Silver chloride-induced stress corrosion cracking of the high-pressure (HP) compressor stages 1 to 6 rotor disc assembly, which could result in uncontained failure of the engine and damage to the airplane.

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

Required Actions

Remove the HP compressor stages 1 to 6 rotor disc assembly from service before exceeding certain thresholds, depending on accumulated flight cycles since new.

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

Compliance Time

Within 300 flight cycles or before exceeding 16,000 flight cycles since new, depending on the current flight cycle count.

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

Affected Aircraft

Rolls-Royce Deutschland Ltd & Co KG BR700-715A1-30, BR700-715B1-30, and BR700-715C1-30 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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