Service difficulty report · Support Fitting · Boeing 747121

Difficulty date
July 21, 2000
Submitted
October 13, 2000
Operation
Air carrier
Aircraft
N691UP
Make and model
Boeing 747121
Aircraft serial
19641
Aircraft time
95,273 hours, 22,812 cycles
Part
Support Fitting
Part number
654U61343
Part serial
127668
Condition
Cracked
Location
Mlg
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, ULTRASONIC INSPECTION CARRIED OUT ON BLG RETRACT ACTUATOR SUPPORT FITTINGS, IAW NDTMPT4 53-40-02. LT FITTING CRACKED IN THE O/B EDGE OF THE I/B LUG. CRACK CONFIRMED USING HFEC. LT BLG RETRACT ACTUATOR SUPPORT FITTING REPLACED IAW EO747-5340-0994.