SDR ASAA2025111162561

Service difficulty report · Support · Boeing 7378FH

Difficulty date: November 11, 2025
Submitted: November 25, 2025
Operation: Air carrier
Aircraft: N549AS
Make and model: Boeing 7378FH
Aircraft serial: 30824
Aircraft time: 68,466 hours, 24,432 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Support
Part number: 143A948535
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

FWD CARGO PIT, AFT BULKHEAD SUPPORT LOWER RAIL STA 500I HAS CORROSION. GROUNDED - YES. EVALUATED ORIG THICK=.071", REMOVED .071, REMAINING .000 100% MAT LOSS FOUND TO BE OUT OF LIMITS IAW SRM 53-30-08-1A-1. REMOVED DAMAGED RAIL, LOCATED & DRILLED NEW RAIL INSTALLED NEW RAIL IAW SRM 51-40-02, AND SRM 51-40-05 AND DWG 143A7902 REV -.

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