Service difficulty report · Floorbeam · Boeing 737

Difficulty date
April 4, 2023
Submitted
April 5, 2023
Operation
Air carrier
Aircraft
N25705
Make and model
Boeing 737
Aircraft serial
28766
Aircraft time
77,491 hours, 27,915 cycles
Part
Floorbeam
Part number
NA
Condition
Corroded
Location
Sta 986,Lbl 24 T
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AFT WET AREA FLOOR BEAM STA 986,LBL 24 TO LBL 55 HAS SEVERAL SPOTS OF CORROSION.(REF AAR NR 975082) REMOVED CORROSION ON FLOOR BEAM STA 986.5 LBL TO ACCOMPLISHED FLOOR BEAM REPAIR AS PER SRM LBL 55 AS PER SRM 51-10-02-0G-0 ORIGINAL MAT. 53-70-51-2R-4. ALTERNATE 1 ESR 2020476-14-4110 0.150 IN MAT. REMAINING 0.085 IN MAT. LOSS 0.065 (WORK ACCOMPLISHED BY V931343) IN. FOUND OUT LIMITS AS PER SRM 53-70-51-1A-1. ACCOMPLISHED FLOOR BEAM REPAIR AS PER SRM 53-70-51-2R-4. ALTERNATE 1 ESR 2020476-14-4110 WORK ACCOMPLISHED BY V931343. REMOVED CORROSION ON FLOOR BEAM STA 986.5 LBL TO LBL 55 AS PER SRM 51-10-02-0G-0 ORIGINAL MAT. 0.150 IN MAT. REMAINING 0.085 IN MAT. LOSS 0.065 IN. FOUND OUT LIMITS AS PER SRM 53-70-51-1A-1. ADD EMP:V931343