Service difficulty report · Transmitter · Saab 340B

Difficulty date
December 14, 2016
Submitted
December 17, 2016
Operation
Air carrier
Aircraft
N9CJ
Make and model
Saab 340B
Aircraft serial
340B224
Aircraft time
36,179 hours, 41,053 cycles
Part
Transmitter
Part number
531623
Condition
Out Of Adjust
Location
Te Flap
Stage of operation
AP
How discovered
O
Nature of condition
N
Precautionary procedure
O

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

What was found

DURING THE AFTERNOON FLIGHT FROM LIT TO MSY, THE CREW SELECTED FLAPS PRIOR THE LANDING. THE AIRCRAFT HAD A FLAP FAULT INDICATION ON THE CENTRAL WARNING PANEL WITH A SPLIT FAULT INDICATION ON THE FLAP POSITION INDICATOR. CREW PROCEEDED TO MSY. THEY DECLARED AN EMERGENCY AND LANDED WITH ZERO FLAPS WITHOUT FURTHER INCIDENT. MAINTENANCE DISCOVERED THE OUTPUT VOLTAGE READING FOR THE POSITION TRANSMITTER ON THE FLAP CONTROL LEVER WAS WELL OUT OF TOLERANCE. MAINTENANCE ADJUSTED THE POSITION OF THE TRANSMITTER ON THE FLAP CONTROL LEVER UNTIL VOLTAGE READING WAS IN SPECIFIED RANGE IN ACCORDANCE WITH THE MAINTENANCE MANUAL. OPERATIONAL CHECK WAS SATISFACTORY. DUE TO THE DEFINITIVE FIND, THE AIRCRAFT WAS RETURNED TO SERVICE.

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