Service difficulty report · Rib · Boeing 747121

Difficulty date
February 13, 2007
Submitted
March 14, 2007
Operation
Air carrier
Aircraft
N683UP
Make and model
Boeing 747121
Aircraft serial
20353
Aircraft time
90,184 hours, 22,066 cycles
Part
Rib
Part number
65B078405
Condition
Cracked
Location
Lws 1349
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

INSPECTION TYPE:C LEFT WING - 3VC FLAP I/B ACTUATOR ATTACH L/E RIB AT OLES 1349.25 CD LINK PTD AREA FOUND CRACK. CRACK LENGTH 0.375 INCH. LEFT WING NR 3VC FLAP I/B ACTUATOR O/B RIB AT OLES 1349.25 REPAIRED AS PER HX RS R57-42-35766, & UPS EO B747-5740-15105.