SDR ASAA2025113063083

Service difficulty report · Floor Support · Boeing 7378FH

Difficulty date: November 30, 2025
Submitted: December 17, 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: Floor Support
Part number: 140A98724
Condition: Corroded
Location: Zone 200
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

AFT WET AREA FLOOR SUPPORT, BS 967 - 986, LBL 14 HAD AREAS OF CORROSION. GROUNDED - YES. REMOVED CORROSION & FOUND TO BE OUT OF LIMITS IAW SRM 53-70-51-1A-1, ORIGINAL .071" REMAINING .051" REMOVED .020". REMOVED AND REPLACED THE FLOOR SUPPORT IAW DWG 140A9870, REV A.

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