SDR SWAA2026071778187

Service difficulty report · Stiffener · Boeing 7377H4

Difficulty date: June 8, 2026
Submitted: July 18, 2026
Operation: Air carrier
Aircraft: N930WN
Make and model: Boeing 7377H4
Aircraft serial: 36636
Aircraft time: 55,644 hours, 33,975 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 LOC BS 540 AND LBL 24.97 AT AFT BULKHEAD FWD CARGO COMPARTMENT. REPLACED VERTICAL STIFFENER LOC BS 540 AND LBL 24.97 AT AFT BULKHEAD FWD CARGO BAY IAW SRM 51-10-02, ITEM 9, AND DWG 111A2001, SHEET 114, REV B, DWG 111A2000, SHEET 49, REV - AND DWG 111A2001 SHEET 115 REV A.

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