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SDR CA110527001

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Service difficulty report · Engine · Dhav DHC8102

FAA SDR system

Difficulty date
May 9, 2011
Submitted
September 14, 2015
Operation
General aviation
Make and model
Dhav DHC8102
Aircraft time
48,792 hours
Engine
Pwa PW120A
System (JASC)
7200 · Engine (Turbine/Turboprop)
Part
Engine
Condition
Power Loss
Location
Nr 1
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) LOSS OF TORQUE/IFSD DURING CLIMB AFTER T/O, THE NR 1 ENGINE FUEL FLOW NH SPEED DROPPED AND THE TORQUE WENT DOWNTO 40 PERCENT ACCOMPANIED BY SURGING. THE ENGINE UPTRIM CAME ON FOR THE NR 2 ENGINE, THEN THE NR 1 ENGINE STARTED TO SURGE AGAIN AND THE TORQUE WENT TO 110 PERCENT. THE PILOT SHUTDOWN ENGINE AND LANDED SAFETY ON A SINGLE ENGINE AT THE POINT OF DEPARTURE. POST FLIGHT INSPECTION FAULTY AUTOFEATHER SWITCH DISCOVERED.