Service difficulty report · Box Beam · Boeing 757251

Difficulty date
February 24, 2020
Submitted
February 27, 2020
Operation
Air carrier
Aircraft
N548US
Make and model
Boeing 757251
Aircraft serial
26495
Aircraft time
74,953 hours, 27,004 cycles
Part
Box Beam
Condition
Corroded
Location
Bs 1640-1681
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

SHIP 5648 CORROSION ON BOX BEAM BTW STA 1640 TO STA 1681 LBL54 AT PAX CABIN FLOOR STRUCTURE. CORRECTIVE ACTION: SUMMARY OF NRC 00481 CORROSION LEVEL 2: BOX BEAM BTW STA 1640 TO STA 1681 LBL54 WERE REPLACED PER B757-200 SRM. (1503132)