Service difficulty report · Control Unit · Boeing 757324

Difficulty date
April 22, 2014
Submitted
April 24, 2014
Operation
Air carrier
Aircraft
N74856
Make and model
Boeing 757324
Aircraft serial
32815
Aircraft time
32,652 hours, 10,983 cycles
Part
Control Unit
Part number
285N001140
Part serial
03336
Condition
Failed
Location
Te Flaps
Part time
1,559,770 hours
Stage of operation
AP
How discovered
O
Nature of condition
F, J
Precautionary procedure
L

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

What was found

DURING FINAL APPROACH, TE FLAP DISAGREE AT FLAPS 20 THEN SUBSEQUENT LE FLAP DISAGREE LIGHT DURING TE FLAP PROCEDURE FLAP LOCKOUT FLAPS 20 BITE. CHECK SHOWED FAILURE OF NR 2 FSEU R & R IAW AMM 27-51-00-422-011. UNIT TESTED GOOD IAW AMM 27-51-01-722-005.