Service difficulty report · Drive Unit · Boeing 74747UF

Difficulty date
December 3, 2014
Submitted
December 3, 2014
Operation
Air carrier
Aircraft
N496MC
Make and model
Boeing 74747UF
Aircraft serial
29257
Aircraft time
64,043 hours, 10,182 cycles
Part
Drive Unit
Part number
1267629
Part serial
11175
Condition
Faulty
Location
Le Flap
Part time
64,032 hours, 10,180 cycles
Stage of operation
CR
How discovered
O
Nature of condition
F, J
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING CRUISE HAD LE FLAP IN-TRANSIT, MAGENTA INDICATION, & 280KT IAS LIMIT OR SPEED DISPLAYED. STATUS MSG FLAP SYS MON. TURNED WAI TO ON, INDICATION WENT AWAY AFTER APPROX 2 MIN, THEN EICAS MSG FLAPS CONTROL & EXPANDED DISPLAY SHOWING LE SENSOR INOPERATIVE. R & R LE L3 FLAP DRIVE UNIT IAW AMM 27-81-03. OPERATIONAL CHECKED GOOD & NO FAULT PRESENT AT THIS TIME. FDU SERVICED IAW AMM 12-13-12-603-801.

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