Service difficulty report · Floorbeam · Boeing 737990

Difficulty date
May 10, 2012
Submitted
June 4, 2012
Operation
Air carrier
Aircraft
N303AS
Make and model
Boeing 737990
Aircraft serial
30016
Aircraft time
40,238 hours, 15,491 cycles
Part
Floorbeam
Part number
147A55048
Condition
Corroded
Location
Bs 947.5
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

MAIN CABIN AFT FLOORBEAM TEE CORRODED BS 951, RBL 10. FOUND TO BE OUT OF LIMITS. REMOVED DAMAGE IAW SRM 53-70-51, RIG 205, REPAIR 5. PERFORMED HFEC IAW NDT MANUAL 651-00-00, FIG 23 USING T8257A ON FWD AND AFT CUTOUT. NO CRACKS. FORMED REPAIR ANGLES IAW SRM 53-70-51, FIG 205, REPAIR 5. HEAT TREATED REPAIR ANGLES TO T6. FABRICATED TEE ANGLES, STRAPS, AND FILLERS IAW SRM 53-70-51, REPAIR 5. ALODINED PRIMED AND TOP COATED REPAIR PARTS IAW SRM 51-20-01. INSTALLED TEE REPAIR IAW SRM 53-70-51, FIG 205, REPAIR 5.