Propellor falls off Rex Saab 340 in NSW Australia
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Propellor falls off Rex Saab 340 in NSW Australia
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It is good to see that major Australian Aviation incidents can be kept on an Australian only forum.
We've been doing it our own way with good results since WW2, so why involve others.
We've been doing it our own way with good results since WW2, so why involve others.
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I'm probably going to get in to strife with the moderators, but many Australians, Canadians and people in Asia and South America are concerned about this incident on a Saab 340. It is not just an Australian issue.
More people travel domestically than intercontinental.
A propeller shearing off a domestic flight should be discussed as minutely as a failure of an intercontinental Airbus incident.
This incident is buried in pprune.org
More people travel domestically than intercontinental.
A propeller shearing off a domestic flight should be discussed as minutely as a failure of an intercontinental Airbus incident.
This incident is buried in pprune.org
Three pans in play over ten minutes.
http://archive-server.liveatc.net/ys...2017-0030Z.mp3
Initial report from 968, casual as you like, starts around 9:40 mark
http://archive-server.liveatc.net/ys...2017-0030Z.mp3
Initial report from 968, casual as you like, starts around 9:40 mark
Much more serious than first reported.
The Evening Standard says:
Anyway, less drag on the dead side.
The Evening Standard says:
Passenger plane makes emergency landing after two of its propellers fall off
Anyway, less drag on the dead side.
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Appears to be either a prop shaft break (prop gearbox output shaft), or even failed big retaining nut on the aft side of the "bull" gear internal to the gearbox. There was another lost prop incident in the mid-80s over Lake Erie, US carrier Comair IIRC.
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Not first event
Previous issue with CT7 gearbox output shaft caused at least 1 starboard propeller departure in flight. Our red on an American Eagle operated Saab 340 in 1991, unlikely to be the identical issue how er?
More info today
Sydney airline grounds 5 planes after propeller drops off | Miami Herald
I read in one article that the pilot was already taking action on the engine when he saw the prop depart up and over the wing away from the fuselage.
That observation would match a clean release of the prop while still under power.
With a left hand engine it might have been different
Sydney airline grounds 5 planes after propeller drops off | Miami Herald
I read in one article that the pilot was already taking action on the engine when he saw the prop depart up and over the wing away from the fuselage.
That observation would match a clean release of the prop while still under power.
With a left hand engine it might have been different
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From an engineer's point of view this is one of the most disturbing aviation news this year. Here we have a commercial airline in an industrial country, operating a quite common type, following (I suppose) well-audited rules, all the paperwork (supposedly) in order, and we have a major structural failure which had a 50% chance of really messing up the aircraft. Any human error, any aggravating circumstances must have occurred on ground, where they were supposed to be identified and corrected by the supposedly well-audited quality control system. It's just a combination of luck and crew skill the passengers and crew needed no more than counseling (if they even really needed that).
So where's the original problem and what can we learn from the incident?
So where's the original problem and what can we learn from the incident?
So where's the original problem and what can we learn from the incident
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swarf =chip detector light/ tooth = sun/planetary disrupt
Always best to get a chip-detector light first from the swarf of a lube fail or misalignment. Not good when the sun/planetary enmesh leads to a tooth detaching. That leads to the prop-torque inducing a prop separation. But always good when it detaches cleanly (up, up and away) and doesn't penetrate the fuselage.....
