SDR IPXA11667580

Service difficulty report · Stiffener · Boeing 76734AF

Difficulty date: June 19, 2011
Submitted: June 29, 2011
Operation: Air carrier
Aircraft: N308UP
Make and model: Boeing 76734AF
Aircraft serial: 27761
Aircraft time: 41,409 hours, 12,851 cycles
System (JASC): 5720 · Wing Miscellaneous Structure
Part: Stiffener
Part number: 111T20057
Condition: Cracked
Location: Wing Center Tank
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:8C, FWD CARGO COMPT WING CENTER TANK FRONT SPAR VERTICAL STIFFENER UPPER AREA FOUND CRACKED JUST AT STA 785.9, LBL 10.94. ORIGINAL MATERIAL IS BAC1518-912-2024T3511, CRACK LENGTH IS 1.25", CUT OFF LENGTH IS 19.5". THIS REPAIR IS CLASSIFIED AS A MAJOR REPAIR WITH MATERIAL BAC1518-912-7075T6511 AS REPAIR STIFFENER SECTION, CLAD 2024T3-0100IN AS REPAIR STRAPS, TOTAL REPAIR LENGTH IS 26"

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