Airworthiness directives › 2013-03-17
AD 2013-03-17 Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines
Applicability*9
This AD applies to the following Rolls-Royce Deutschland Ltd & Co KG (RRD) turbofan engines that have any of the high-pressure turbine (HPT) stage 1 or stage 2 discs with a serial number (S/N) listed in Table 1 to paragraph (c) of this AD, installed: (1) RRD BR700-710A1-10 and BR700-710A2-20 turbofan engines; and (2) BR700-710C4-11 model engines that have hardware configuration standard 710C4-11 or 710C4-11/10 engraved on the engine data plate. Table 1 to Paragraph (c)—Affected HPT Stage 1 and Stage 2 Discs S/Ns of HPT Stage 1 Discs, Part Number (P/N) BRR23952 S/Ns of HPT Stage 2 Discs, P/N BRR22008 LDRQA05719 LDRQA05791 LDRQA05720 LDRQA05944 LDRQA05721 LDRQA05945 LDRQA05722 LDRQA05723 LDRQA05724 LDRQA05726 LDRQA05727 LDRQA05841 LDRQA05842
Compliance
After the effective date of this AD, do not install an HPT stage 1 and an HPT stage 2 disc, identified by S/N in Table 1 to paragraph (c) of this AD, in the same engine.
Required actions
The Manager, Engine Certification Office, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request.
Unsafe condition
Unless already done, remove from service the HPT stage 1 and stage 2 discs listed by S/N in Table 1 to paragraph (c) of this AD, at the following: (1) For BR700-710A1-10, BR700-710A2-20, and BR700-710C4-11 engine models (without RRD Mod 72-101466), remove the HPT stage 1 and stage 2 discs from service before accumulating 3,000 cycles-since-new (CSN). (2) For the BR700-710C4-11 engine model (with RRD Mod 72-101466), remove the HPT stage 1 and stage 2 discs from service before accumulating 2,300 CSN.
Affected ADs
None.
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