Service difficulty report · Rib · Boeing 747121

Difficulty date
September 5, 2003
Submitted
October 1, 2003
Operation
Air carrier
Aircraft
N682UP
Make and model
Boeing 747121
Aircraft serial
20349
Aircraft time
98,649 hours, 25,117 cycles
Part
Rib
Condition
Corroded
Location
Nr 10 V/C Flap
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, LT WING - NR 10 V/C FLAP I/B LINKAGE I/B RIB NR 1 TO NR 5 AND NR 8 ROTARY ACTUATOR MOUNTING HOLES FOUND PITTING CORROSION (COUNT FROM I/B CLOCKWISE). NR 1 TO NR 5 AND NR 8 BOLT HOLES REPAIRED AS PER RS 57-41-35066 AND REFER EO B747-5740-19269-A FOR REPEAT INSPECTION INSTRUCTIONS.