SDR SWAA2025111221467

Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date: October 4, 2025
Submitted: November 12, 2025
Operation: Air carrier
Aircraft: N908WN
Make and model: Boeing 7377H4
Aircraft serial: 36620
Aircraft time: 57,715 hours, 34,816 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Stiffener
Condition: Cracked
Location: Zone 100
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 ON VERTICAL STIFFENER BS 540 AND LBL 24.97 BULKHEAD AREA FWD CARGO COMPARTMENT. REPLACED VERTICAL STIFFENER BS 540 AND LBL 24.97 BULKHEAD AREA FWD CARGO COMPARTMENT IAW SRM 51-10-02, SRM 51-40-02, AND DRAWING 111A2001, SHEET 76, 77, 78 REV- AND DRAWING 111A2000, SHEET 37, REV -.

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