Service difficulty report · Stringer · Boeing 747422

Difficulty date
October 26, 2006
Submitted
October 31, 2006
Operation
Air carrier
Aircraft
N180UA
Make and model
Boeing 747422
Aircraft serial
25224
Aircraft time
65,759 hours, 8,119 cycles
Engine
Pwa PW4056
Part
Stringer
Condition
Cracked
Location
Bs 480 S10r
Stage of operation
IN
How discovered
9
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

FOUND UPPER DECK BS 480, STR 10R CRACKED AT FASTENER HOLE. INSTALLED REPAIR ANGLE. SUSPECT PRESSURIZATION CYCLE FATIGUE.