Service difficulty report · Control Unit · Dhav DHC8102

Difficulty date
October 19, 2010
Submitted
October 21, 2010
Operation
Air carrier
Aircraft
N812EX
Make and model
Dhav DHC8102
Aircraft serial
312
Aircraft time
46,255 hours, 50,934 cycles
Engine
Pwa PW120A
Part
Control Unit
Condition
Malfunctioned
Location
Nr 2 Prop Rpm
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

NR 2 PROP RPM AND TORQUE SURGED ON CLIMB OUT. STAYED WITHIN LIMITES, REDUCED POWER AND PROP RPM DROPPED INTO PROHIBITED ZONE-PROP SYNC OFF. R & R NP INDICATOR AND PROP CONTROL UNIT. ALSO R & R NR 2 TSCU RAN ENG OPS CHECKED GOOD.