Service difficulty report · Failsafe · Boeing 747422

Difficulty date
August 19, 2009
Submitted
August 21, 2009
Operation
Air carrier
Aircraft
N180UA
Make and model
Boeing 747422
Aircraft serial
25224
Aircraft time
77,895 hours, 9,410 cycles
Engine
Pwa PW4056
Part
Failsafe
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

UPPER DECK FRAME FAIL-SAFE CHORD CRACKED AT LT STA 1140. MAJOR REPAIR ACCOMPLISHED. CUT OUT FAIL-SAFE CHORD. FABRICATED & INSTALLED REPAIR PER FRR -744-0532.