SDR IPXA2672228

Service difficulty report · Stiffener · Boeing 76734AF

Difficulty date: March 3, 2012
Submitted: March 12, 2012
Operation: Air carrier
Aircraft: N303UP
Make and model: Boeing 76734AF
Aircraft serial: 27241
Aircraft time: 44,260 hours, 14,279 cycles
System (JASC): 5720 · Wing Miscellaneous Structure
Part: Stiffener
Part number: 111T20058
Condition: Cracked
Location: Wing Ctr 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:9C, WING CENTER TANK FRONT SPAR VERTICAL STIFFENER TOP AREA FOUND CRACK JUST AT STA 785.9 RBL 10.94. REPAIRED IAW SRM 57-10-10-2R2, REPAIR2, FIG 201, REV 52 JUST AT STA 785.9 RBL10.94, ORIG MATL: BAC1518-912-2024T3511, CRACK LENGTH: 2.5",CUTOFF LENGTH 19.5",CLASSIFIED AS A MAJOR REPAIR WITH MATL BAC1518-912-7075T6511 AS REPAIR STIFFENER SECTION & CLAD2024T3-0100IN AS REPAIR STRAPS, TOTAL REPAIR LENGTH IS 26".

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