Service difficulty report · Floorbeam · Boeing 75724APF

Difficulty date
February 22, 2011
Submitted
March 28, 2011
Operation
Air carrier
Aircraft
N455UP
Make and model
Boeing 75724APF
Aircraft serial
25476
Aircraft time
30,313 hours, 13,755 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 1681.8
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

INSPECTION TYPE:C4, MAIN DECK FLOOR STRUCTURES LT SIDE STA BS 1681.8 BETWEEN LBL 45. 5 TO LBL 54.9 HAS CORROSION. REMOVED CORROSION ORIGINAL THICKNESS .07K LOSS .025 WITH .046 REMAINING IS OUT OF LIMITS IAW SRM 53-00-51-1A . ACCOMPLISHED BLEND REPAIR FOR EXTENDED LIMITS IAW EA 110191 IR/UPS EO B757-5310-41846-A. THIS IS CLASSIFIED AS A MINOR REPAIR.

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