Sennheiser SI 234 - ANNEXE 802 Operations Instructions download pdf (Page 149)

100

101

DA 42 NG AFM

Emergency

Procedures

Doc. No. 7.01.16-E Rev. 3 01-Apr-2014 Page 3 - 65

3.12.3 DEFECTIVE PROPELLER RPM REGULATING SYSTEM

CAUTION

The POWER lever should be moved slowly, in order to avoid

over-speeding and excessively rapid RPM changes. The light

wooden propeller blades produce more rapid RPM changes

than metal blades.

WARNING

In case of a malfunction of the engine control unit it is possible

that the propeller blades will remain in the position of highest

pitch. In this case the reduced engine performance should

be taken into consideration.

(a) Oscillating RPM

1. POWER setting ...................... change

If the problem does not clear:

2. Garmin G1000 ....................... check L/R ECU A/B FAIL caution

If L/R ECU A FAIL indicated:

3. VOTER switch ....................... ECU B

If L/R ECU B FAIL indicated:

3. VOTER switch ....................... ECU A

NOTE

If the problem does not clear itself, switch back to AUTO and

land on the nearest suitable airfield.

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Sennheiser SI 234 - ANNEXE 802 Operations Instructions Page 149

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