SDR IPXA12574529

Service difficulty report · Floor Support · Boeing 75724APF

Difficulty date: July 11, 2012
Submitted: July 25, 2012
Operation: Air carrier
Aircraft: N412UP
Make and model: Boeing 75724APF
Aircraft serial: 23852
Aircraft time: 27,330 hours, 18,862 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Corroded
Location: Sta 297-310
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, COCKPIT UPPER LEVEL FLOOR STRUCTURE INTERCOSTAL CORRODED, STA 297 -310.5, LBL 60. REMOVED CORROSION ORIGINAL THICKNESS .050 LOSS .007 WITH .043 REMAINING IS OUT OF LIMITS IAW SRM 53-10-15-1A-1. FABRICATED NEW INTERCOSTAL IAW GMM 09-10 AND SAMPLE INSTALLED IAW SRM 51-40-02.

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