Service difficulty report · Transmitter · Boeing 757204

Difficulty date
January 27, 2021
Submitted
January 28, 2021
Operation
Air carrier
Aircraft
N924FD
Make and model
Boeing 757204
Aircraft serial
26267
Aircraft time
67,975 hours, 27,455 cycles
Part
Transmitter
Part number
18196917
Part serial
1184B
Condition
Failed
Location
Te Flaps
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
L

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

What was found

DURING ARRIVAL GOT TE FLAP ASYM WHEN FLAPS SELECTED TO 5. FLAP INDICATION SHOWS BETWEEN 1 AND 5. COMPLIED WITH QRH, LANDED UNEVENTFULLY. TRAILING EDGE FLAP INDICATION SHOWING APPROXIMATELY HALF A NEEDLE WIDTH SPLIT AFTER BLOCK-IN. LEFT AND RIGHT TRAILING EDGE FLAPS APPEAR TO BE EXTENDED SYMMETRICAL. PERFORMED FSEU BITE PROCEDURE NR 1 FSEU FAULTING MESSAGE NUMBER 314. NR 2 AND NR 3 FSEU NO FAULTS NOTED, FURTHER T/S REQUIRED, REF FIM 27-51 FT805. T/S PER FIM 27-51 TREE 809 AND TREE 805. FSEU 1 HAS 314 FAULT THAT WILL NOT CLEAR. INSPECTED TORQUE TUBES AND OVERTORQUE INDICATORS ON LT WING. NO DEFECTS AND FLAP TORQUE TUBE TURNS FREELY MANUALLY. LT FLAP POS TRANSMITTER IS 18% OFF AND ERRATIC DURING MOVEMENT. INTERNAL MOVEMENT APPEARS TO BE MESSED UP THRU SIGHT GLASS. REMOVED AND REPLACED LT FLAP TRANSMITTER. ADJ/TEST GOOD, REF M/M 27-58-03-4 AND M/M 27-58-01-5. A/C OK FOR SERVICE.