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-   -   PT6 failures? (https://www.airlinepilotforums.com/technical/65850-pt6-failures.html)

jarretk 11-29-2013 10:55 AM

Wasn't my story but still a good one. A guy I know bagged the left engine just after pulling up the gear on a 200 series King Air. Come to find out one of the technicians overhauling the engine dropped an ink pen inside the hot section.

Rama 12-12-2013 10:30 AM

Pilot described 'catastrophic engine failure' in Molokai crash - Hawaii News - Honolulu Star-Advertiser
Another Pt-6 in Hawaii failed-1 death.

DirectTo 12-12-2013 11:48 AM

The Martinaire one I previously mentioned in November turned out to be bird ingestion. Apparently enough made it through the FOD screen to take out a compressor blade.

Tummy 01-16-2014 06:21 PM

I was surprised to hear of as many failures as people here are mentioning. My personal experience with the engine isn't too impressive (700 hours), but I haven't heard of any failures in the training command here over the past two years, and we're collectively flying about 45,000 hours per year.

Stall 01-17-2014 08:15 AM

Hit a deer on takeoff with the prop. That pretty much took care of it.

ackattacker 01-17-2014 08:34 AM

Used to be you couldn't operate scheduled service single engine beyond gliding distance of shore. The FAA changed the rules in a triumph of money over safety. The PT-6 is reliable but they do fail and airplanes do crash because of it semi-regularly. Acceptable losses, say the insurance companies.

Don't remember is someone mentioned the Pilatus that ditched off Russia in 2001. N660NR.

Gjn290 01-17-2014 09:14 AM


Originally Posted by ackattacker (Post 1562)
Used to be you couldn't operate scheduled service single engine beyond gliding distance of shore. The FAA changed the rules in a triumph of money over safety.

It still is that way, and not just scheduled either, any 135 SE with passengers on board.

ackattacker 01-17-2014 09:31 AM


Originally Posted by Gjn290 (Post 1561248)
It still is that way, and not just scheduled either, any 135 SE with passengers on board.

You're right, I had it confused with the IFR rules which they did change.

WARich 01-18-2014 11:44 PM


Originally Posted by Tummy (Post 1560907)
I was surprised to hear of as many failures as people here are mentioning. My personal experience with the engine isn't too impressive (700 hours), but I haven't heard of any failures in the training command here over the past two years, and we're collectively flying about 45,000 hours per year.

Yeah, we've had a pretty good couple of years (knock on wood). But unlike the King Air we have a handle to pull if crap hits the fan. I've been pretty impressed with the PT-6 in my T-6 experience and MC-12 (BE-350) experience. Been a great engine.

rigpiggy 02-25-2014 06:55 PM

I have had one real failure, and 2 precautionary shutdowns in my 8k hours of PT-6. 1. bad bearing overtemp, chewed up hot section 2.blown prop seal/smoke in aircraft precautionary ie: still made power, but for how long, 3. low oil pressure/leak shutdown at 60 psi as per mfr's instructions.

I Love them, but you would have to pay me an awful lot to fly a single again.


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