Service difficulty report · Floorbeam · Boeing 737824

Difficulty date
September 8, 2025
Submitted
September 10, 2025
Operation
Air carrier
Aircraft
N33284
Make and model
Boeing 737824
Aircraft serial
31635
Aircraft time
66,203 hours, 24,624 cycles
Part
Floorbeam
Part number
141A550518
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

CORROSION FWD WET AREA AT FLOORBEAM STA 344 LBL 57. REMOVED CORROSION AT FWD WET AREA FLOORBEAM STA 344 LBL 57" IAW SRM 51-10-02-0G-0-.MEASURED THE AREA,ORIGINAL MATERIAL 0.175, MATERIAL LOSS 0.112", MATERIAL REMAINING 0.063", FOUND TO BE OUT OF LIMITS IAW SRM 53-10-51-1A-1 STEP 4.I GROUP 9. (2) FIGURE 105 DETAIL C. REMOVED DAMAGED AREA AND INSTALLED FLOORBEAM REPAIR AT BS 344, IAW SRM53-10-51-2R-10 REPAIR 10, DRAWINGS 140A9810, 141A8110, 141A5730, 141A5410, 141A8146, 141A5772, & 141A8147.