Service difficulty report · Floorbeam · Boeing 757200

Difficulty date
December 15, 2010
Submitted
December 15, 2010
Operation
Air carrier
Aircraft
N473AC
Make and model
Boeing 757200
Aircraft serial
24738
Aircraft time
59,116 hours, 20,705 cycles
Part
Floorbeam
Part number
FX146N531420
Condition
Corroded
Location
Bs 1681
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

STA 1681, FLOORBEAM UPPER CAP LOWER SIDE IS CORRODED AROUND FLOOR PANEL HOLES. REMOVED DAMAGE IAW SRM. CORROSION DETERMINED TO BE OUT OF LIMITS IAW SRM 53-00-51, FIG 101, DETAIL 6, P 103; ORIGINAL MATERIAL .156", REMAINING - 090", LOSS - .066". FABRICATED NEW FLOORBEAM IAW DWG 146N5314. TREATED/PRIMED AND TOP COATED NEW FLOORBEAM IAW SRM 51-20-01/AMM 51-21-00-7. INSTALLED NEW FLOORBEAM AT BS 1681, LBL 58-RBL 58, IAW SRM 51-40-02. MAJOR REPAIR.

More about the Boeing 757-200 SERIES