Airworthiness Directive · Amendment 39-17271 · Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines
Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines
This AD applies to Rolls-Royce Deutschland Ltd & Co KG (RRD) TAY 620-15 engines, serial numbers 17054, 17085, 17088, 17107, and 17166.
We are adopting a new airworthiness directive (AD) for certain serial number (S/N) Rolls-Royce Deutschland Ltd & Co KG (RRD) TAY 620- 15 turbofan engines. This AD requires initial and repetitive general inspections and ultrasonic inspections (UI) of low-pressure compressor (LPC) fan blades for cracks. If any fan blade is found cracked, this AD requires replacement of the LPC fan blade set and the LPC fan disc. This AD was prompted by a report of an LPC fan blade separation. We are issuing this AD to detect cracks in the LPC fan blades, which could lead to uncontained failure of the LPC fan blades and LPC fan disc, and damage to the airplane.
Unless already done, do the following actions:
(1) Before further flight after the effective date of this AD, perform a visual inspection and ultrasonic inspection of the LPC fan blades to determine general condition and/or the presence of cracks.
(2) Thereafter, perform the inspections specified in paragraph (e)(1) of this AD within every additional 1,500 flight hours (FHs), but not fewer than 1,000 FHs.
(3) If any fan blade is found cracked, replace the LPC fan blade set and the LPC fan disc before further flight.
Replacing the LPC fan blade set and the LPC fan disc is terminating action to the repetitive inspections required by this AD.
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.
Engines
