SDR SWAA2021092814390

Service difficulty report · Sidewall Support · Boeing 7377H4

Difficulty date: September 2, 2021
Submitted: September 28, 2021
Operation: Air carrier
Aircraft: N229WN
Make and model: Boeing 7377H4
Aircraft serial: 32498
Aircraft time: 53,178 hours, 31,536 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Sidewall Support
Condition: Corroded
Location: Fuselage
Stage of operation: IN
How discovered: 9
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 FORWARD CARGO BAY FLOOR TO SIDEWALL SUPPORT AROUND FASTENER HOLES BS 400+2, RBL 24, WL 154. REMOVED FLOOR TO SIDEWALL SUPPORT IAW SRM 51-40-02-0G-0. REMOVED CORROSION. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2. LOCATED. AND DRILLED NEW FLOOR SIDEWALL SUPPORT IAW SRM 51-40-05-0G, SRM 51-40-08, AND DWG 143A7501REV-.

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