Service difficulty report · Rib · Boeing 747121

Difficulty date
September 23, 2004
Submitted
October 22, 2004
Operation
Air carrier
Aircraft
N681UP
Make and model
Boeing 747121
Aircraft serial
19661
Aircraft time
104,265 hours, 26,546 cycles
Engine
Pwa JT9D7A
Part
Rib
Condition
Cracked
Location
Rt Wing
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, RT WING L/E OLES 1453 NR25 VC FLAP OB ROTARY IB SUPPORT RIB FWD MOUNT HOLE CRACKED. RT WING L/E OLES NR25 VC FLAP OB ROTARY ACTUATOR IB SUPPORT RIB REPAIRED IAW HX RSNR R-57-41-35205, DVI THE AFFECTED AREA AT C- CHECK INTERVALS NOT TO EXCEED 18 MONTHS FOR SIGNS OF CORROSION, CRACK AND DEGRADATION OF SUBJECT REPAIR. IAW UPS EO NR B747-5740-21181 APPENDIX A FOR REFERENCE.