Service difficulty report · Stub Frame · Boeing 7377H4

Difficulty date
July 15, 2025
Submitted
August 15, 2025
Operation
Air carrier
Aircraft
N902WN
Make and model
Boeing 7377H4
Aircraft serial
36615
Aircraft time
57,234 hours, 33,409 cycles
Part
Stub Frame
Condition
Cracked
Location
Zone 200
Stage of operation
IN
How discovered
V
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

CRACK FOUND ON R1 STUB FRAME AT BS 291.5+7.5; .15' ABOVE SEAL DEPRESSOR; .6' LENGTH (MARKED)<[01] TASK CARD COMPLETED; SUMMARY STATEMENT; NO ALLOWABLE LIMITS FOUND ON SRM THEREFORE PART TO BE REMOVE AND REPLACE I.A.W SRM 51-10-02-0G-0 PAR.9.C REMOVED FSD UPPER AND FWD TRIM I.A.W SRM 51-10-02-0G-0 AND RE-INSTALLED FSD UPPER AND FWD TRIM IAW AMM: 25-21-35-420-801;REMOVED FSD CRACKED STUB FRAME AND DISCARDED I.A.W SRM 51-10-02-0G-0 AND SRM 51-40-02-0G-0;LOCATED AND DRILLED NEW FSD STUB FRAME I.A.W SRM 51-40-05-0G-0; BOEING DWG 141A8370 REV D AND EA # M-25-153-01539 ATTACHED TO CCN TTG8Q013R942;INSTALLED NEW FSD STUB FRAME AT FRAME 291.5+7.5' ABOVE SEAL DEPRESSOR I.A.W SRM 51-40-02-0G-0; BOEING DWG 141A8370 REV D AND EA # M-25-153-01539 ATTACHED TO CCN TTG8Q013R942.;[02] FWD UPPER LATCH RECEIVER WILL BE ADJUSTED ON TTG8Q0149LP6.;[03] FWD SERVICE DOOR WILL BE ADJUSTED ON TTG8Q0149LP6.;[04] VERIFIED CORRECTIVE ACTION 1-3 AND MEASUREMENT TABLE.

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