Service difficulty report · Floorbeam · Boeing 727227

Difficulty date
October 10, 2010
Submitted
October 13, 2010
Operation
Air carrier
Aircraft
N490FE
Make and model
Boeing 727227
Aircraft serial
21493
Aircraft time
43,394 hours, 28,778 cycles
Engine
Pwa JT8D15
Part
Floorbeam
Part number
6520827159
Condition
Corroded
Location
Bs 720a
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 TOP "T" CAP FLOORBEAM MAIN CABIN BS 720A LBL 25 - BL 0. CUTOUT DAMAGE AREA AT TOP "T" CAP FLOORBEAM BS 720A LBL 25 TO BL 0 (ON 720A DIM 1.85" X 0.90" LBL 5.5" TO 7.35") IAW SRM 53-10-8, FIG 8, FABRICATED 2 ANGLES FROM 7075O .090 HEAT TREAT TO T6 CONDITION DIM 19.5" X 2.65" & 14.65" X 2.50", SHIM FROM 2024T3 .125" DIM 1.85" X .090 AND INSTALLED REPAIR IAW SRM 53-10-8, FIG SRM 51-10-2 & 51-50-2 REV 103 AND ER 2-37153-801, REV A.