Service difficulty report · Floor Support · Boeing 737890

Difficulty date
December 7, 2025
Submitted
December 16, 2025
Operation
Air carrier
Aircraft
N557AS
Make and model
Boeing 737890
Aircraft serial
35176
Aircraft time
70,079 hours, 20,914 cycles
Part
Floor Support
Part number
147A571017
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 SUPPORT 147A5710-17 AT BS 986.5 FOUND CORRODED. GROUNDED - YES. REMOVED CORROSION IAW SRM 51-10-02 INVESTIGATION FOUND TO BE 100% MAT LOSS OUT OF LIMITS, DRILLED TO FIT NEW SUPPORT P/N 147A5710-17 PO:1137788.1 AND INSTALLED NEW FLOOR SUPPORT STA 986-1016 RBL 32 IAW BOEING DWG 147A5700 REV.B B737-800 SRM 51-40-02.