Service difficulty report · Control Unit · Boeing 737823

Difficulty date
November 11, 2019
Submitted
November 14, 2019
Operation
Air carrier
Aircraft
N979AN
Make and model
Boeing 737823
Aircraft serial
29568
Aircraft time
32,924 hours, 13,219 cycles
Part
Control Unit
Part number
285A12002
Part serial
D03125
Condition
Faulty
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

AIRCRAFT WAS GROUNDED: CREW DECLARED AN EMERGENCY INTO EWR ON ACCOUNT OF FLAP PROBLEM. FLAPS WOULD NOT LOWER NORMALLY HAD TO LOWER THEM USING THE ALTERNATE SYSTEM. FLIGHT LANDED WITHOUT INCIDENT AND TAXIED TO THE GATE. MAINTENANCE TROUBLESHOT AND FOUND CODE 27-81218 IN FAULT HISTORY. PERFORMED FIM TASK 27-88-00-810-805, ALL CHECKS NORMAL. REMOVED AND REPLACED FSEU IAW AMM 27-51-01. OPS CHECK NORMAL, OK FOR SERVICE.