Service difficulty report · Stub Frame · Boeing 7377H4

Difficulty date
August 12, 2025
Submitted
September 9, 2025
Operation
Air carrier
Aircraft
N906WN
Make and model
Boeing 7377H4
Aircraft serial
36887
Aircraft time
57,218 hours, 33,367 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 NOTED ON R1 DOOR CUT OUT STUB FRAME BS 291.5+5, 0.75' ABOVE SEAL DEPRESSOR, L: 0.9'. REMOVED UPPER FWD R1 DOOR STUB FRAME IAW SRM 51-40-02. LOCATED, & DRILLED NEW STUB FRAME IAW SRM 51-40-05, AND DWG 141A8370, REV C. INSTALLED FSD UPPER STUB FRAME AND SEAL DEPRESSOR IAW SRM 51-40-02, DWG 141A8370, REV C, AND DWG 141A8380, REV D. APPLIED FILLET SEAL AT STUB FRAME AREA R-1 FWD UPPER AREA IAW AMM 51-31-00. PERFORMED ADJUSTMENT OF FWD UPPER LATCH RECEIVER IAW AMM 52-41-00-820-801, STEP 2.N, FIG. 507.

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