Service difficulty report · Floorbeam · Boeing 737824

Difficulty date
December 10, 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
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

CABIN FLOORBEAM STA 947.5 RBL 50 UPPER SURFACE WITH CORROSION AREA AROUND HARD POINT. CABIN FLOOR BEAM STA 947.5 RBL 50 UPPER SURFACE FOUND CORROSION OUT OF LIMITS REPAIRED IAW B737 SRM 53-70-51-2R-5 AND SRM 51-40-02-0G-0. INSTALLED REPAIR ON CABIN TRANSVERSE FLOOR BEAM STA 947.5 RBL 33" TO RBL 59.5" , REF. B737 SRM 53-70-51-2R-5, AAR ESR-WI #2024007-8-13301 REV IR, AND UNITED EC/RA #5370-01211 REV. ORIGINAL.