Airworthiness directives › 2018-25-01
AD 2018-25-01 Airworthiness Directives; Rolls-Royce plc Turbofan Engines
Applicability*9
This AD applies to all Rolls Royce plc (RR) Trent 1000-A, Trent 1000-C, Trent 1000-D, Trent 1000-E, Trent 1000-G, and Trent 1000-H turbofan engine models.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Within 15 days of the effective date of this AD, or within the compliance times specified in Table 1 of RR Alert Non-Modification Service Bulletin (NMSB) Trent 1000 72-AK130, Revision 2, dated July 26, 2018, whichever occurs later, perform on-wing inspection of the IPC stage 1 rotor blades in accordance with paragraph 3.A.(1) of RR Alert NMSB Trent 1000 72-AK130. (2) Repeat the on-wing inspection of the IPC stage 1 rotor blades in accordance with paragraph 3.A.(1) of RR Alert NMSB Trent 1000 72-AK130, Revision 2, dated July 26, 2018, and within the compliance times specified in Table 1 of that NMSB. (3) Within 15 days of the effective date of this AD, or within the compliance times specified in Table 1 of RR Alert NMSB Trent 1000 72-AK130 Revision 2, dated July 26, 2018, whichever occurs later, perform on-wing inspection of the IPC stage 2 rotor blades and IPC shaft stage 2 dovetail posts in accordance with paragraph 3.B.(1) and 3.C.(1) of RR Alert NMSB Trent 1000 72-AK130. (4) Repeat the on-wing inspection of the IPC stage 2 rotor blades and IPC shaft stage 2 dovetail posts in accordance with paragraphs 3.B.(1) and 3.C.(1) of RR Alert NMSB Trent 1000 72-AK130, Revision 2, dated July 26, 2018, and within the compliance times specified in Table 1 of RR Alert NMSB Trent 1000 72-AK130. (5) For the on-wing inspection required by paragraphs (g)(1) through (4) of this AD, provided the stated thresholds and intervals are not exceeded, you may substitute: (i) An in-shop inspection of an engine or module performed in accordance with the instructions of paragraphs 3.A.2, 3.B.2, and 3.C.2 of the RR Alert NMSB Trent 1000 72-AK130, Revision 2, dated July 26, 2018; or (ii) an in-shop piece part inspection during refurbishment in accordance with the Accomplishment Instructions, paragraphs 3.B.(2)(f)(vi), 3.B.(2)(g)(v), and 3.B.(3)(d)(iii) of RR Trent 1000 NMSB 72-K132, dated June 29, 2018. (6) If any IPC stage 1 rotor blade, IPC stage 2 rotor blade, or an IPC shaft stage 2 dovetail post is found cracked during any inspection required by this AD, remove the part from service and replace the part with a part eligible for installation before further flight.
Unsafe condition
This AD was prompted by reports of intermediate-pressure compressor (IPC) rotor blade cracks, which could lead to rotor blade separations resulting in engine failures. We are issuing this AD to prevent failure of the IPC. The unsafe condition, if not addressed, could result in failure of one or more engines, loss of thrust control, and loss of the airplane.
Affected ADs
This AD replaces AD 2018-13-07, Amendment 39-19319 (83 FR 34758, July 23, 2018).
Read the original on the Federal Register →
You just looked this one up by hand
TrackAD holds all 12,278 of them and matches them against the aircraft you actually look after — airframe, engine, propeller and appliances in one pass — then works out what falls due and when.
- Bring your existing list in from a spreadsheet Paste the rows straight out of Excel. Headers like C/W Date and N/A are read for you.
- A copy that works when this does not One file. No internet, no login, no this software running. For the morning something has to be produced and the computer is not cooperating.
- $5 a month, or $50 a year Up to 50 aircraft on either.
Look round a real shop first Start free
The demonstration shop is eleven real aircraft with a year of work behind them. No account needed.
The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1