Service difficulty report · Stiffener · Boeing 76734AF

Difficulty date
August 18, 2009
Submitted
August 26, 2009
Operation
Air carrier
Aircraft
N307UP
Make and model
Boeing 76734AF
Aircraft serial
27760
Aircraft time
35,936 hours, 11,290 cycles
Part
Stiffener
Part number
141T514631
Condition
Cracked
Location
Fuselage
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 MEC COMPT STA 246 LBL 40 FLOORBEAM ATT STIFFENER FOUND CRACKED (CRACK LENGTH 1.25 INCH). MEC COMPT STA 246 LBL 40 FLOORBEAM ATTACH STIFFENER REPAIRED REF SRM 53-10-51-2R4 REV 44. THIS IS CLASSIFIED AS MAJOR REPAIR WITH MATERIAL 7075T6-0.063IN AS STIFFENER, 7075T6-0.080IN AS DOUBLER, REPAIR LENGTH 14.5 INCHES MPI P20887 ISSUED FOR REPEAT INSP AS PER SRM 53-10-51-2R4 SHT 2 TABLE II, AT 3000 FLT CYC OR 24 MONTHS WHICHEVER OCCURS FIRST.

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