SDR SWAA2026020662522

Service difficulty report · Sidewall Support · Boeing 7377H4

Difficulty date: January 18, 2026
Submitted: February 6, 2026
Operation: Air carrier
Aircraft: N945WN
Make and model: Boeing 7377H4
Aircraft serial: 36660
Aircraft time: 51,108 hours, 31,405 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 ON FWD CARGO BAY, LT AFT BODY TO SIDEWALL SUPPORT BS 492 - 500D, LBL 25, WL 156. DAMAGED FLOOR TO SIDEWALL SUPPORT FOUND OUT OF LIMITS. REMOVED AND INSTALLED A NEW FLOOR TO SIDEWALL SUPPORT BS 400 - 500D, LBL 25, WL 156 IAW SRM 51-40-02-0G-0, & DWG 143A7500, REV-.

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