Tailpipe Fire on Shutdown
Thread Starter
Join Date: Jul 2000
Location: Rhodesia
Posts: 85
Likes: 0
Received 0 Likes
on
0 Posts
Tailpipe Fire on Shutdown
Hi there,
Can anyone shed some light on the chances of getting a tailpipe fire on shutdown with the CF6-80 type engines on a B744?
Thank you
Can anyone shed some light on the chances of getting a tailpipe fire on shutdown with the CF6-80 type engines on a B744?
Thank you
Join Date: Feb 2005
Location: flyover country USA
Age: 82
Posts: 4,579
Likes: 0
Received 0 Likes
on
0 Posts
I don't think there's any real history of this happening - if it did happen I'd think it likely to be an oil leak in or around a turbine sump. Check the manufacturer's SOI.
I knew of a military engine that, if taxied in "Hot" and promptly shutdown, would experience a brief re-ignition. The hot oil in the oil cooler would boil off a small bit of fuel that could only escape via the fuel nozzles.
The service was disinclined to call it a "fire" because of its short duration and no harm done - so the terminology was deemed to be "post-shutdown Dieseling".
I knew of a military engine that, if taxied in "Hot" and promptly shutdown, would experience a brief re-ignition. The hot oil in the oil cooler would boil off a small bit of fuel that could only escape via the fuel nozzles.
The service was disinclined to call it a "fire" because of its short duration and no harm done - so the terminology was deemed to be "post-shutdown Dieseling".
Join Date: Jul 2005
Location: OZ
Posts: 580
Likes: 0
Received 0 Likes
on
0 Posts
I agree with barit1
I have never seen or heard of a tail pipe fire happen on my company fleet who have been operating CF6-80s since 1989.
Last time I saw such an event was on a PW JT9D on shut down and the RB211 G can catch people out whom do igniter checks without doing a dry spin first to remove pooled fuel. It took 8 bolts to fix the defect last time it occurred
I have never seen or heard of a tail pipe fire happen on my company fleet who have been operating CF6-80s since 1989.
Last time I saw such an event was on a PW JT9D on shut down and the RB211 G can catch people out whom do igniter checks without doing a dry spin first to remove pooled fuel. It took 8 bolts to fix the defect last time it occurred
