TWO consecutive ENGINE FAILURES | Ends Up CRASHING!
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- Опубликовано: 15 апр 2024
- Following a partial loss of engine power after takeoff, the pilot returned to the airport and performed a visual inspection and engine test run with a mechanic, which revealed no anomalies. The pilot then chose to perform another flight without identifying the cause of the loss of engine power and the mechanic agreed to accompany him. As the airplane climbed through 400 to 500 ft above ground level after takeoff, the engine ran rough, and the pilot started a turn back to the airport. The engine subsequently lost total power and the airplane impacted terrain and obstacles.
The airplane was equipped with an engine monitor that captured exhaust gas temperatures (EGT), cylinder head temperatures (CHT), and turbine inlet temperature (TIT). TIT is the direct measurement of the temperature of combined exhaust from all cylinders immediately before it enters the turbocharger, but the measurement itself is not used in the normal operation of the turbocharger. The data showed a rapid drop in TIT about 45 seconds before changes in the CHT and EGT associated with both loss of power events on the day of the accident. The data also recorded three other sessions in which the TIT dropped similarly, but there were no associated changes to EGT or CHT values to indicate a loss of engine power on those occasions. No evidence was found to indicate a loss of engine power resulted directly from the changes in TIT or what caused those changes.
Examination of the engine revealed a hole in the turbocharger's automatic wastegate controller diaphragm, which would result in the wastegate failing toward the closed position. The closed wastegate would increase manifold pressure and decrease the efficiency of the turbocharger at higher altitudes; however, a closed wastegate would not result in a total loss of engine power. The reason for the loss of engine power could not be determined based on available evidence.
Probable Cause: The total loss of engine power for reasons that could not be determined based on available evidence and the pilot's decision to take off without fully troubleshooting the partial loss of engine power that occurred during the previous flight.
Source: aviation-safety.net/wikibase/...
Audio source Liveatc.net
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A 30 minute turnaround time tells me the tech did little more than a visual inspection under the cowlings, didn't see anything obvious and then said "let's take it for a test flight and see if it happens again". And for some reason the pilot agrees. Had they 50-75ft less altitude when failure occurred they might both have won Darwin Awards.
A rapid drop of TIT means a really flooding, over-rich mixture, from overboost; I saw this before, a dude took off with closed manual wastegates (turbo-normalized Seneca) and lots of black smoke from the exhausts as he sank back down on the runway with gear mostly retracted. Crump. Of course, it was the avionic shop's fault for pushing the wastegate knobs in when they worked on his autopilot...meathead didn't use checklists. These guys....tried to get the engine to fail again?!?
Upon reading the report, the mechanic apparently saved their asses by flying the airplane into the crash, the pilot froze.
So this guys radio calls alone suggest a serious lack of discipline in operating an airplane. I counted at least 10 responses to ATC where he failed to even include his call sign, even while on the ground outside of the emergency situation. He failed to follow hold short instructions during taxi. His incredibly casual approach to working radios suggest to me he may have a casual approach in general, which is a recipe for bad things to occur. If that’s true, he should not be acting as PIC. Glad he survived.
September 11th, 2019 if anyone else was wondering whether this took place 10 years ago or last week lol.
A taxi way is an optional landing location in an emergency. Just because another plane is taking off on the runway doesn’t mean you can’t head towards the runway or a taxiway and put it down. Even between the runway and taxiway in the grass is preferable to a parking lot. In an emergency ATC is only giving suggestions, do what you need to in order to protect life. You may not have time to wait for ATC to figure something out and communicate it to you.
I fly out of boca, theyre congested with jet traffic most the time. controllers gotta figure out how to get him back in and whatnot, him being an emergency should rocket him to the top of his pririties
Why does tower ask for reason for return? I’ve heard this a couple times
An engine failure is like an emergency, with a rapid return after takeoff, the tower should know why for his paperwork.
@@owenmerrick2377 so they have to do paperwork for coming back? Even if emergency isn’t declared?
@@RaceMentally The pilot reported an engine failure, and the tower asked if assistance was required; certainly not a usual thing. Good to make a note of the event at least.
The rapid repeat attempt to be shows a need to pull the engine techs license…🤔
Gotta test drive the "car" to determine what's wrong. Sounds like nobody was hurt, which is first and foremost the way we hope all landings end, crash or no crash.
@@dabneyoffermein595 If you want to test it, try some high speed taxis first.
@@chrisschack9716 Taxi's, ah yea, like Checker Cab
Dude is soo sloppy on the radio
Seems foreighner. Not american born.