Service difficulty report · Floorbeam · Boeing 757251

Difficulty date
March 9, 2011
Submitted
March 11, 2011
Operation
Air carrier
Aircraft
N521US
Make and model
Boeing 757251
Aircraft serial
23209
Aircraft time
77,302 hours, 32,235 cycles
Part
Floorbeam
Condition
Corroded
Location
Fuselage
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

PREVIOUS REPAIR AT BS 1640 CORRODED AT 4 LOCATIONS BETWEEN LBL 15 AND LBL 60. REMOVED CORROSION AT STN 1640 FLOORBEAM PER SRM 51-10-02, FOUND TO BE OUT OF LIMITS IAW SRM 53-00-51 FIG 101. REMOVED AND REPLACED UPPER CHORD AT BS 1640 FROM LBL 64 TO LBL 15 IAW SRM 53-00-51 FIG 201 REPAIR 3 AND SRM 51-40-05.