Service difficulty report · Floorbeam · Boeing 727227

Difficulty date
March 18, 2010
Submitted
March 18, 2010
Operation
Air carrier
Aircraft
N479FE
Make and model
Boeing 727227
Aircraft serial
21461
Aircraft time
44,408 hours, 28,804 cycles
Part
Floorbeam
Part number
65208381
Condition
Corroded
Location
Bs 1130
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 WITH CRACKING/ LIFTED METAL -STA 1130 FLOORBEAM UPPER CHORD FWD FLANGE, LBL 25 - LBL 45. CUT-OUT DAMAGED AREA FROM 1130 FLOORBEAM UPPER CHORD FWD FLANGE IAW SRM 53-10-8 DETAIL III DIM 12.5 INCH LONG. PERFORMED HFEC ON CUT-OUT IAW NDTM 51-00-00 FIG 23 PART 6, NO CRACKS INDICATED. FABRICATED REPAIR ANGLE PARTS MADE FROM 7075 O .050 PO NR 20006220 APPROX DIM: 12 INCH BY 2 INCH, FABRICATED STRAP FROM 7075 O .063 PO NR 9009327 APPROX DIM: 3 INCH BY 14 INCH IAW SRM 53-10-8 FIG 10 AND 53-10-2 FIG 7. HEAT TREATED MATERIAL TO T6 CONDITION IAW ER NR 2-37153-801 REV A. TREATED AND PRIMED REPAIR PARTS IAW SRM 51-10-2. INSTALLED REPAIR PARTS IAW SRM 53-10-8 FIG 10 DETAIL III REV 102.