Service difficulty report · Fitting · Boeing 7377H4

Difficulty date
September 23, 2023
Submitted
September 28, 2023
Operation
Air carrier
Aircraft
N478WN
Make and model
Boeing 7377H4
Aircraft serial
33989
Aircraft time
63,708 hours, 37,940 cycles
Part
Fitting
Part number
UNKNOWN
Condition
Damaged
Location
Zn 400 Nacelle/P
Stage of operation
IN
How discovered
9
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

#2 ENGINE AFT PYLON FWD INBD FITTING ELONGATED.<[01] REAMED ELONGATED HOLE TO .5625' PER SRM 51-40-05.;[02] MEASURED DAMAGE TO THE FACE OF THE FITTING CAUSED BY THE BUSHING HAT WORKING TO BE .019? DEEP. FOUND NO APPLICABLE SRM LIMITS. REMOVED DAMAGE PER SRM 51-10-02 AND CONTACTED ENGINEERING;[03] PERFORMED HOLE PROBE INSPECTION PER 737 NDT 51-00-00 PROCEDURE 16. NO FAULTS NOTED.;[04] PERFORMED HFEC SURFACE INSPECTION PER 737 NDT 51-00-00 PROCEDURE 23. NO FAULTS NOTED.;[05] NO: 2 ENGINE AFT PYLON FWD INBD FITTING ELONGATED HOLE REWORKED ON FAULT NO: TTG8Q00NLZ60;[06] NO: 2 ENGINE AFT PYLON FWD INBD FITTING ELONGATED HOLE REWORKED ON FAULT NO: TTG8Q00NLZ60

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