Service difficulty report · Floorbeam · Boeing 757251

Difficulty date
September 29, 2012
Submitted
October 8, 2012
Operation
Air carrier
Aircraft
N551NW
Make and model
Boeing 757251
Aircraft serial
26498
Aircraft time
34,256 hours, 13,887 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 1640
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 ON MAIN CABIN FLOORBEAM AT BS 1640 LBL 3 TO RBL 3. REMOVED CORROSION AT MAIN CABIN FLOORBEAM & FOUND OUT OF LIMITS IN REF SRM 53-00-51 ALLOWABLE DAMAGE 1, FIG 101. REPAIRED UPPER TEE IN REF SRM 53-00-51, REPAIR 3. COMPLETED INSPECTED.