Service difficulty report · Indicator · Dhav DHC8102

Difficulty date
November 20, 2015
Submitted
April 22, 2016
Operation
General aviation
Make and model
Dhav DHC8102
Aircraft time
54,790 hours
Engine
Pwa PW120A
Propeller
Hamstd 14SF7
Part
Indicator
Condition
Malfunctioned
Location
Cockpit
Stage of operation
CL
How discovered
O
Nature of condition
R, J
Precautionary procedure
E, A

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

What was found

(CAN) DURING CLIMB OUT, THE NR 1 ENGINE TORQUE INDICATION WENT TO 165%. THE POWER WAS REDUCED BUT THE TORQUE INDICATION REMAINED THE SAME. ALL OTHER ENGINE PARAMETERS APPEARED TO BE NORMAL AND NO AIRCRAFT YAW WAS NOTICED. THE FLIGHT CREW FOLLOWED THEIR QUICK REFERENCE HANDBOOK AND PERFORMED A PRECAUTIONARY ENGINE SHUTDOWN. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED AND LANDED WITHOUT FURTHER INCIDENT. THE NR 1 TORQUE SIGNAL CONDITIONING UNIT WAS REPLACED AND TESTED BEFORE RETURNING TO THE AIRCRAFT. THE AIRCRAFT WAS RETURNED TO SERVICE.