Airworthiness directives › 2016-08-10
AD 2016-08-10 Airworthiness Directives; General Electric Company Turbofan Engines
Applicability*9
This AD applies to all General Electric Company (GE) CF6-80C2A1, CF6-80C2A2, CF6-80C2A3, CF6-80C2A5, CF6-80C2A5F, CF6-80C2A8, CF6-80C2B1, CF6-80C2B1F, CF6-80C2B1F1, CF6-80C2B1F2, CF6-80C2B2, CF6-80C2B2F, CF6-80C2B3F, CF6-80C2B4, CF6-80C2B4F, CF6-80C2B5F, CF6-80C2B6, CF6-80C2B6F, CF6-80C2B6FA, CF6-80C2B7F, CF6-80C2B8F, CF6-80C2D1F, CF6-80C2L1F, CF6-80C2K1F turbofan engines. This AD also applies to CF6-80E1A1, CF6-80E1A2, CF6-80E1A3, CF6-80E1A4, and CF6-80E1A4/B turbofan engines.
Compliance
After the effective date of this AD, do not install any accessory heat shield assembly, P/N 1643M23G12; or any accessory heat shield assembly listed by P/N in Table 1 of GE SB CF6-80C2 S/B 72-1520, dated September 22, 2015; or in Table 1 of GE SB CF6-80E1 S/B 72-0525, dated September 22, 2015; into any engine.
Required actions
For the purpose of this AD, an engine shop visit is defined as the induction of an engine into the shop for maintenance involving the separation of any major mating engine flanges, except that the separation of engine flanges solely for the following purposes is not considered a shop visit: (1) Transportation without subsequent engine maintenance. (2) Replacement of the turbine rear frame. (3) Removal of the top or bottom high-pressure compressor (HPC) case, or both, for HPC airfoil maintenance or replacement of variable stator vane bushing or lever arms. (4) Quick-turn workscope procedure to replace CF6-80E1 stage 1 high-pressure turbine (HPT) blades per CF6-80E1 SB 72-0504 R00 ENGINE—General (72-00-00)—Quick-Turn Workscope Procedure to Replace CF6-80E1 Stage 1 HPT Blades. (5) Replacement of compressor rear frame assembly, new oil manifold, air tubes and support brackets per CF6-80C2 SB 72-1516 R02 ENGINE—Compressor Rear Frame Assembly (72-34-00)—New Oil Manifold, Air Tubes and Support Brackets.
Unsafe condition
Comply with this AD within the compliance times specified, unless already done. (1) For CF6-80C2 engines, at the next engine shop visit after the effective date of this AD, remove from service accessory heat shield assembly, part number (P/N) 1643M23G12, and any other accessory heat shield assembly listed by P/N in Table 1 of GE Service Bulletin (SB) CF6-80C2 S/B 72-1520, dated September 22, 2015. Install an accessory heat shield assembly eligible for installation. (2) For CF6-80E1 engines, at the next engine shop visit after the effective date of this AD, remove from service accessory heat shield assemblies listed by P/N in Table 1 of GE SB CF6-80E1 S/B 72-0525, dated September 22, 2015. Install an accessory heat shield assembly eligible for installation. (3) Remove any heat shield assembly from service if the accessory heat shield assembly part number marking is illegible and the documentation associated with the part cannot properly identify the part.
Affected ADs
None.
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