Supplement POH DR400/120D, DR400/140B,
DR400/180R, DR400/200R, DR400/RP
Page 3 - 12 Issue 3 – July 2014
ROUGH ENGINE OPERATION
Oil pressure too low (< 2.3 bar in cruise or <1.2 bar at idle power)
(1) Reduce power as quickly as possible
(2) Check oil temperature: If the oil temperature is high or near operating
limits,
i) Land as soon as possible
ii) Be prepared for an emergency landing
iii) Expect engine failure
Note: During warm-weather operation or longer
climb outs at low airspeed engine temperatures could
rise into the amber range and trigger the "Caution" light.
This warning allows the pilot to avoid overheating of the
engine as follows:
(3) Increase the climbing airspeed, reduce angle of climb
(4) Reduce power, if the engine temperatures approach the red area.
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