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
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: 9C, WING CENTER TANK FRONT SPAR VERTICAL STIFFENER TOP AREA FOUND CRACK JUST AT STA 785.9 LBL 10.94. REPAIRED IAW 57-10-10-2R2, REPAIR 2, FIG 201, REV 52, JUST AT STA 785.9, LBL 10.94, ORIG MATL: BAC1518-912-2024T3511, CRACK LENGTH: 3", CUTOFF LENGTH: 19.5", CLASSIFIED AS A MAJOR REPAIR WITH MATL BAC1518-912-7075T6511 AS REPAIR STIFFENER SECTION & CLAD 2024T3-0100IN AS REPAIR STRAPS, TOTAL REPAIR LENGTH: 26".

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