Service difficulty report · Floorbeam · Boeing 75724APF

Difficulty date
September 14, 2022
Submitted
September 14, 2022
Operation
Air carrier
Aircraft
N441UP
Make and model
Boeing 75724APF
Aircraft serial
27386
Aircraft time
29,302 hours, 19,118 cycles
Part
Floorbeam
Part number
146N51721
Condition
Corroded
Location
Bs 1680
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

INSPECTION TYPE:SEG3EXFOLIATION CORROSION ON FLOOR BEAM STA 1680, FROM LBL 38.25 TO LBL 41.25, LOCATED ON THE UPPER BEAM FLANGE LOWER SURFACEWORKED PER UPS EO B757-5310-84662-A, UPS RCD 283544 AND VT MAE 757-5360-27-A3017 REV-

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