SDR IPXA2572185

Service difficulty report · Floorbeam · Boeing 75724APF

Difficulty date: February 6, 2012
Submitted: March 12, 2012
Operation: Air carrier
Aircraft: N456UP
Make and model: Boeing 75724APF
Aircraft serial: 25477
Aircraft time: 23,080 hours, 13,954 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Bs 1100
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:C, MAIN CARGO BAY BS 1100, LBL 25 TO LBL 45 FLOORBEAM TEE CAP HAS CORROSION AROUND EVERY NUT PLATE HOLES. REMOVED CORROSION, ORIGINAL MATERIAL THICKNESS .196 LOSS OF .056 WITH .140. REMAINING IS OUT OF SRM LIMITS REPAIRS IAW EA 120254 EO B757-5310-46223-A.

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