Airworthiness directives › 2011-26-11
AD 2011-26-11 Airworthiness Directives; General Electric Company (GE) GE90-110B1 and GE90-115B Turbofan Engines
Applicability*9
This AD applies to General Electric Company (GE) GE90-110B1 and GE90-115B turbofan engines with high-pressure compressor (HPC) stages 2-5 spool, part number (P/Ns) 351-103-106-0, 351-103-107-0, 351-103-108-0, 351-103-109-0, 351-103-141-0, 351-103-142-0, 351-103-143-0, or 351-103-144-0, installed.
Compliance
Perform an eddy current inspection (ECI) or a fluorescent penetrant inspection (FPI) of the HPC stages 1-2 seal teeth using paragraphs 3.B. or 3.C. of GE Service Bulletin (SB) GE90-100 S/B 72-0320, Revision 02, dated October 1, 2010.
Required actions
Remove from service HPC stages 2-5 spool with cracked stages 1-2 seal teeth before further flight.
Unsafe condition
Comply with this AD when the HPC forward case half is removed from the engine after the effective date of this AD, unless the actions have already been done.
Affected ADs
None.
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