Airworthiness Directive · Amendment 39-18576 · Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines
Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines
(1) This AD applies to:
(i) Rolls-Royce Deutschland (RRD) BR700-710A1-10 engines with serial number (S/N) 11505 and below and with a low-pressure turbine (LPT) module, part number (P/N) M51-104 or P/N M51-111, installed;
(ii) RRD BR700-710A2-20 engines with S/N 12492 and below and with an LPT module, P/N M51-108 or P/N M51-111, installed;
(iii) RRD BR700-710C4-11 engines with S/N 15277 and below, with configuration standard 710C4-11 engraved on the engine data plate and with an LPT module, P/N M51-112, installed; and
(iv) RRD BR700-710C4-11 engines with S/N 15329 and below, with configuration standard 710C4-11/10 engraved on the engine data plate and with an LPT module, P/N M51-112, installed.
(2) Reserved.
We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) BR700-710A1-10, -710A2-20, and -710C4-11 turbofan engines. This AD requires removing the pawl carrier pivot pins, part number (P/N) BRR17117, from service and replacing them with parts eligible for installation. This AD was prompted by a seized low-pressure turbine (LPT) fuel shut-off pawl carrier caused by corrosion of the pawl carrier pivot pin. We are issuing this AD to prevent failure of the fuel shut-off mechanism, which could result in uncontained part release, damage to the engine, and damage to the airplane.
(1) Within 6 months after the effective date of this AD, remove each pawl carrier pivot pin, P/N BRR17117, from service and replace with a part eligible for installation.
(2) Reserved.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
