Service difficulty report · Flap System · Boeing 767322

Difficulty date
December 17, 2017
Submitted
December 18, 2017
Operation
Air carrier
Aircraft
N665UA
Make and model
Boeing 767322
Aircraft serial
29237
Aircraft time
70,688 hours, 16,417 cycles
Part
Flap System
Condition
Malfunctioned
Location
Te Flaps
Stage of operation
AP
How discovered
O
Nature of condition
F
Precautionary procedure
O

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

What was found

TE FLAP DISAGREE FLAPS STAYED AT POSITION ONE. PROCEDURE NO HELP WENT TO FLAP ASYMETRY. EMERGENCY DECLARED. TE FLAP DISAGREE SELF RESET ON EICAS. AFTER SWITCHING ADP AND ELEC HYD PUMPS, FLAPS MOVED DOWN TO 5 (LAST POSITION OF FLAP LEVER AFTER LAST FLT). FIM TASK 27-51-00-815-810 PERFORMED, NIL FINDINGS. OVERTORQUE PINS INSPECTED ON ANGLE GEARBOX, FOUND ALL NORMAL, NO OVERTORQUE. SEVERAL FLAPS-SLATS FULL HYD CYCLES PERFORMED, ALL NORMAL. WHEN CYCLING FLAPS-SLATS IN ALTERNATE PWR, TE FLAP DISAGREE DISPLAYED ON EICAS AND FLAPS-SLATS STUCKED IN POS 1. FOUND CB D24 ON P6-4 CB PANEL (ALTERNATE FLAPS POWER) POPPED. CB D24 RESET AND SEVERAL ALT FUNCTIONS PERFORMED, ALL BACK TO NORMAL.