Service difficulty report · Floorbeam · Boeing 737824

Difficulty date
December 11, 2025
Submitted
December 15, 2025
Operation
Air carrier
Aircraft
N33286
Make and model
Boeing 737824
Aircraft serial
31600
Aircraft time
65,903 hours, 24,597 cycles
Part
Floorbeam
Part number
147A5504
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

CABIN FLOORBEAM STA 947.5 LBL 51 UPPER SURFACE WITH CORROSION AREA AROUND HARD POINT. INSTALLED REPAIR AT STA 947.5 LBL26 TO LBL50" REF B737-800 SRM 53-70-51-2R-5, AND AAR ESR-WI #2024007-7-13298 REV IR, AND UNITED EC/RA 5370-01209, REV ORIGINAL. INSTALLED REPAIR ON TRANSVERSE FLOOR BEAM AT STA 947.5 LBL26" TO LBL50" REF B737-800 SRM 53-70-51-2R-5, AAR ESR-WI #2024007-7-13298 REV IR, AND UNITED EC/RA 5370-01209, REV ORIGINAL.