Service difficulty report · Floor Support · Boeing 757251

Difficulty date
March 17, 2011
Submitted
March 18, 2011
Operation
Air carrier
Aircraft
N521US
Make and model
Boeing 757251
Aircraft serial
23209
Aircraft time
77,302 hours, 32,235 cycles
Part
Floor Support
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

FLOOR SUPPORT AT BL 0 BETWEEN STN 1640 AND STN 1661 CORRODED AS MARKED. REMOVED CORR IAW SRM 51-10-02. ORIGINAL MAT THICKNESS=.050" OUT OF LIMITS IAW SRM 53-00-51. REMOVED FLOOR SUPPORT AND STIFFENER IAW SRM 51-40-02. FABBED NEW CHANNEL SUPPORT IAW DWG 146N5242 AND AMS 2770. LOCATED AND DRILLED NEW CHANNEL SUPPORT IAW SRM 51-40-05. INSTALLED NEW CHANNEL SUPPORT SUPPORT AND STIFFENER IAW SRM 51-40-02.