SDR SWAA2026072028123

Service difficulty report · Sidewall Support · Boeing 7377H4

Difficulty date: June 10, 2026
Submitted: July 21, 2026
Operation: Air carrier
Aircraft: N257WN
Make and model: Boeing 7377H4
Aircraft serial: 32515
Aircraft time: 65,106 hours, 39,315 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 - 767, LBL 22, WL 156. REMOVED AND REPLACED FLOOR TO SIDEWALL SUPPORT IAW SRM 51-40-05-0G-0, SRM 51-40-02-0G-0, AND DWG 146A7500, REV A.

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