SDR SWAA2025081491414

Service difficulty report · Sidewall Support · Boeing 7377H4

Difficulty date: July 15, 2025
Submitted: August 14, 2025
Operation: Air carrier
Aircraft: N902WN
Make and model: Boeing 7377H4
Aircraft serial: 36615
Aircraft time: 57,234 hours, 33,409 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Sidewall Support
Condition: Corroded
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

CORROSION AFT CARGO BAY LT FLOOR TO SIDEWALL SUPPORT PLATE MULTIPLE AREAS AROUND NUT PLATE HOLES BS 727B+10 TO 787+14, LBL 22, WL 156. CORROSION ON AFT CARGO BAY LT FLOOR TO SIDEWALL SUPPORT, FOUND TO BE OUT OF LIMITS. REMOVED, REPLACED AND INSTALLED A NEW AFT CARGO BAY LTH FLOOR TO SIDEWALL SUPPORT PLATE, BS 727 TO 847, LBL 22, WL 156 IAW SRM 51-40-02-0G-0, AND DWG 146A7500, REV -.

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