Service difficulty report · Floorbeam · Boeing 737824

Difficulty date
September 12, 2025
Submitted
October 9, 2025
Operation
Air carrier
Aircraft
N27239
Make and model
Boeing 737824
Aircraft serial
28951
Aircraft time
79,293 hours, 29,659 cycles
Part
Floorbeam
Part number
147A55048
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 CABIN AFT WET AREA FLOORBEAM STA 947.5, LBL9. (REF AAR N/R 97533673) REMOVED THE DAMAGED FLANGES OF THE UPPER TEE OF THE FLOORBEAM BETWEEN LBL 34.5 TO RBL 32.9, INSTALLED NEW TEE ANGLE AND REPAIR PARTS IAW SRM 53-70-51-2R-5 REPAIR 5 WITH THE DEVIATIONS APPROVED IN EC/RA 5370-01194 AND AAR-MIA ESR-WI 2023704-13-12761.