Service difficulty report · Floorbeam · Boeing 727247

Difficulty date
November 30, 2010
Submitted
December 3, 2010
Operation
Air carrier
Aircraft
N233FE
Make and model
Boeing 727247
Aircraft serial
21327
Aircraft time
69,974 hours, 48,638 cycles
Engine
Pwa JT8D15
Part
Floorbeam
Condition
Corroded
Location
Bs 312
Stage of operation
IN
How discovered
9
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 FLOORBEAM, STA 312 TEE CAP TOP LBL 55 - BL 0 L1 ENTRY. CUTOUT DAMAGED SECTION DIM: 3 1/2" IAW SRM 53-10-8 FIG 9 AND FABRICATED 4 EA. ANGLES FROM 7075-O .071 SIZES 15" X 2 3/4" AND 2 EA. 13" X 2 3/4" HEAT TREATED TO T6 CONDITION IAW ENG REPORT 2-37153-801 REV A. FABRICATED FILLER SIZE 3 1/2" FROM BAC 1505-29222-7075 T6 511. IAW SRM 53-10-8 FIG 9. TREATED AND PRIMED PARTS AND INSTALLED REPAIR PARTS IAW SRM 53-10-8 FIG 9 AND SRM 51-10-2.