Service difficulty report · Structure · Boeing 747451

Difficulty date
March 25, 2012
Submitted
April 19, 2012
Operation
Air carrier
Aircraft
N664US
Make and model
Boeing 747451
Aircraft serial
23819
Aircraft time
94,936 hours, 11,946 cycles
Part
Structure
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

DURING HFEC SURFACE INSPECTION ON AFT CARGO DOOR CUTOUT UPPER FORWARD CORNER, CRACK FOUND PROPAGATE FROM HOLE NR 2 TO THE EDGE APPROX 3/4" AS MARKED. WORK CARRIED OUT AS PER PRI 501579-14 REV 0 AND PRI 501579-14 REV 1 AND ER/A 501579-14, REPAIR CARRIED OUT REFERTO NRC NO:003/822 FOR DETAIL.