DA 42 AFM
Emergency
Procedures
Doc. No. 7.01.05-E Rev. 8 15-Dec-2017 Page 3 - 63
(b) Propeller Overspeed
NOTE
This procedure applies for continued propeller overspeed due
to a malfunction in the propeller constant speed unit or a
engine control unit malfunction.
1. POWER setting ...................... reduce as required
If the problem does not clear:
2. ECU SWAP ......................... ECU B
CAUTION
If the problem does not clear itself, switch back to AUTO and
land on the nearest suitable airfield. Prepare for engine
malfunction according to 3.5.6 - ENGINE FAILURES IN
FLIGHT.
END OF CHECKLIST
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