SDR SWAA2026101970924

Service difficulty report · Support Plate · Boeing 7378H4

Difficulty date: September 9, 2026
Submitted: October 20, 2026
Operation: Air carrier
Aircraft: N8657B
Make and model: Boeing 7378H4
Aircraft serial: 42535
Aircraft time: 39,097 hours, 19,276 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Support Plate
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 THE AFT CARGO BAY RT FLOOR TO SIDEWALL SUPPORT PLATE HAD MULTIPLE AREAS AROUND NUT PLATE HOLES, BS 727B - 767, RBL 22, WL 156. REMOVED AND REPLACED THE RT FLOOR TO SIDEWALL SUPPORT PLATE IAW SRM 51-40-02-0G-0, AND DWG 146A7500, REV-.

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