PT6 failures?
10-04-2012, 07:09 PM
#21
On Reserve
Joined APC: Aug 2012
Position: Limo Driver
Posts: 10
In 1995 I was flying a Pilatus Porter (PT-6-27 powered) in Algeria heading out to a drilling rig location, about 1.5 hour into a 3 hour flight she started to developed compressor stalls. With partial power I was able to land at an Italian production facility which had a suitable airstrip. MX was flown out to the location some hours later to have a look and found a bleed valve that was failing. Replaced the bleed valve and continued with no further issues. I have many hour both working on and behind PT-6's and consider them to be an almost bulletproof power plant when taken care of properly.
10-05-2012, 05:18 PM
#22
Gets Weekends Off
Joined APC: Jun 2008
Posts: 579
The air handling bleed valve on the -67b for the pc12 is the only thing that has given me issues, we had one that would stick or only partially open when fully closed...ie at FL280 going from Cruz power to close to idle would result in a compressor stall. Only one engine did this, we changed the part and serviced the spring and it fixed the issue. Only other issue u have had is with the pc12 when the airplane is cold soaked with a older battery it is hard to reach 12 percent NG....
11-01-2012, 12:51 AM
#23
Disinterested Third Party
Joined APC: Jun 2012
Posts: 6,017
Lost oil pressure and shut down a -66 in a P180, with a turn back to the airport.
I lost a -28 in a BE9L. It didn't make much difference as we were headed downhill at the time, anyway.
Lost power and experienced an ongoing incipient compressor stall in a different -66 in a P180, but it wasn't directly the engine's fault. The ice vane door failed and sucked into the intake stream, causing a hooting and a need to operate at reduced power.
I made a precautionary landing this year in a -67AG equipped AT802, due to a fuel filter light, but it was uneventful, with no power loss.
I've had more problems with TPE-331's, though.
I lost a -28 in a BE9L. It didn't make much difference as we were headed downhill at the time, anyway.
Lost power and experienced an ongoing incipient compressor stall in a different -66 in a P180, but it wasn't directly the engine's fault. The ice vane door failed and sucked into the intake stream, causing a hooting and a need to operate at reduced power.
I made a precautionary landing this year in a -67AG equipped AT802, due to a fuel filter light, but it was uneventful, with no power loss.
I've had more problems with TPE-331's, though.
11-01-2012, 07:25 AM
#24
Gets Weekends Off
Joined APC: Dec 2010
Posts: 3,090
Originally Posted by JohnBurke
Lost oil pressure and shut down a -66 in a P180, with a turn back to the airport.
I lost a -28 in a BE9L. It didn't make much difference as we were headed downhill at the time, anyway.
Lost power and experienced an ongoing incipient compressor stall in a different -66 in a P180, but it wasn't directly the engine's fault. The ice vane door failed and sucked into the intake stream, causing a hooting and a need to operate at reduced power.
I made a precautionary landing this year in a -67AG equipped AT802, due to a fuel filter light, but it was uneventful, with no power loss.
I've had more problems with TPE-331's, though.
I lost a -28 in a BE9L. It didn't make much difference as we were headed downhill at the time, anyway.
Lost power and experienced an ongoing incipient compressor stall in a different -66 in a P180, but it wasn't directly the engine's fault. The ice vane door failed and sucked into the intake stream, causing a hooting and a need to operate at reduced power.
I made a precautionary landing this year in a -67AG equipped AT802, due to a fuel filter light, but it was uneventful, with no power loss.
I've had more problems with TPE-331's, though.
11-01-2012, 07:51 AM
#25
Disinterested Third Party
Joined APC: Jun 2012
Posts: 6,017
I have no idea.
Those specifically were in the space of a few years, all on different aircraft. Two were for the same operator (fractional).
During that time period I had a forced landing in a garrett powered single following a catastrauphic failure for a different operator, and prior to those, quite a few in radial engines. A few since then in large turbofans, too.
Those specifically were in the space of a few years, all on different aircraft. Two were for the same operator (fractional).
During that time period I had a forced landing in a garrett powered single following a catastrauphic failure for a different operator, and prior to those, quite a few in radial engines. A few since then in large turbofans, too.
11-26-2012, 10:48 AM
#26
Gets Weekends Off
Joined APC: Nov 2012
Position: 1900D CA
Posts: 3,394
I thought there was a PC-12 that had an engine failure not that long ago. Maybe up in Montana or Oregon?
My airline has had multiple low oil pressure issues on our PT-6s resulting in precautionary engine shutdowns.
My airline has had multiple low oil pressure issues on our PT-6s resulting in precautionary engine shutdowns.
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