DrW wrote: ↑Mon Mar 29, 2021 10:12 pm
This saga seems intended as a faith promoting story and apparently gets more dramatic with the telling.
Here is how the pilot should have handled an engine fire on a piston engine twin (and probably did if everyone eventually walked away safely).
Loss of power in one engine (let's say Right engine) causes the aircraft to yaw to the right.
This requires immediate application of hard left rudder to maintain control of the aircraft.
Normally the pilot would also bank slightly to the left to assist the rudder authority.
This initial response must be well practiced, automatic and immediate for any twin pilot.
Then (and all this must happen very quickly as well):
For the Right Engine,
- Throttle closed,
- Mixture to idle cut-off
- Fuel selector off
- Electric fuel pump off
- Prop pitch to feather
Then, increase Left engine power as needed to maintain airspeed safely above stall speed. The aircraft should now be stabilized. A twin carrying six passengers would have a transponder, so ATC should be able to identify the aircraft on radar. One would normally call ATC to report an engine out and request a heading to the nearest airport where the plane could be safely landed. ATC should respond with the new heading, distance to the alternate airport, and the airport tower frequency for radio communication. ATC would also notify the alternate airport of the situation. (If the pilot has done his pre-flight planning properly, he would already know where his alternate is.)
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Having practiced engine out procedures in a Piper Twin back in the day, I can report that:
- There is no spiraling dive to put out the fire. On an air cooled piston engine any fire will go out when there is no more fuel to burn. (On modern twins there may be a fire extinguisher in the engine nacelle that could be discharged if the fire persisted.)
- Operation of the right engine does not affect the left engine. The good (left) engine definitely does not shut down if the right engine fails. That's the whole point of a twin - fully independent operation of the engines with the ability to maintain altitude on one engine, if necessary.
- Once the Right engine is stabilized it should be a safe, if a somewhat stressful, flight to the nearest airport.
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If the pilot in the plane in the story did end up "spiraling down", it was likely because he was not fast enough on the opposite rudder and momentarily lost control of the aircraft. If this happened, he would need to pull back power on the good engine, apply rudder in the opposite direction of the spin, push the nose over to maintain airspeed, and level the aircraft. To recover straight and level flight, the pilot would then bring back power on the Left engine while applying rudder as needed to maintain control the aircraft. Loss of altitude to accomplish all this should be no more than about 500 feet or so. So, no crash barely avoided by re-starting the good engine at the last possible moment.
However, one can see from the description above where some of the story elements may have come from. If the pilot did momentarily lose control, there would have been a steep bank and a sharp turn to the right (a spiral?). He would have pulled back power to recover the plane. So passengers may have assumed that the Left engine quit since neither engine was producing power.
Losing altitude to the point of a near crash may have been an exaggeration of the response to a momentary loss of control and the attendant altitude loss while the throttle was pulled back on the Left engine. If all this has had occurred at night, it could have been terrifying for everyone, especially if they were IFR in near total darkness and not following the car lights along I-15.