SDR CALA2025090508512

Service difficulty report · Floor Support · Boeing 737824

Difficulty date: September 3, 2025
Submitted: September 5, 2025
Operation: Air carrier
Aircraft: N33209
Make and model: Boeing 737824
Aircraft serial: 30581
Aircraft time: 76,364 hours, 28,565 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Part number: 147A566021
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

MAIN CABIN FLOOR SUPPORT BS 947 TO 967, LBL 50 HAD CORROSION. REMOVED CORROSION ON FLOOR SUPPORT & FOUND TO BE OUT OF LIMITS IAW SRM 53-70-51-1A-1. ORIG. .100 MAT, REMOVED .015, REMAINING IS .085. REMOVED AND REPLACED THE FLOOR SUPPORT IAW DWG 147A5650, REV:-, AND SRM 51-40-02.