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#201
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Fatal Towplane Accident 5-9-20
Preliminary report: https://app.ntsb.gov/pdfgenerator/Re...relim&IType=LA
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#202
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Fatal Towplane Accident 5-9-20
On Wednesday, June 3, 2020 at 5:35:20 PM UTC-7, Tom wrote:
Preliminary report: https://app.ntsb.gov/pdfgenerator/Re...relim&IType=LA After examining the photos, it appears that the towplane's altitude was approximately 3 wing spans, or about 100 ft AGL. The towpilot did cut the tow rope with the internal guillotine mechanism, but by that time was in an unrecoverable attitude. The glider pilot did go thru a pre-launch checklist that included checking that the canopy was closed and locked. I don't see how more training and drilling on checklists and procedures could have prevented this accident. The glider pilot, however, could have prevented it by immediately releasing when the canopy flew open, and could have safely landed straight ahead. Tom |
#203
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Fatal Towplane Accident 5-9-20
On Wednesday, June 3, 2020 at 11:56:08 PM UTC-4, 2G wrote:
On Wednesday, June 3, 2020 at 5:35:20 PM UTC-7, Tom wrote: Preliminary report: https://app.ntsb.gov/pdfgenerator/Re...relim&IType=LA After examining the photos, it appears that the towplane's altitude was approximately 3 wing spans, or about 100 ft AGL. The towpilot did cut the tow rope with the internal guillotine mechanism, but by that time was in an unrecoverable attitude. The glider pilot did go thru a pre-launch checklist that included checking that the canopy was closed and locked. I don't see how more training and drilling on checklists and procedures could have prevented this accident. The glider pilot, however, could have prevented it by immediately releasing when the canopy flew open, and could have safely landed straight ahead. Tom The photos and the timeline are very telling. Unless I am reading the timeline incorrectly the glider pilot was on tow for 13 seconds before the executed detachment and return to the airport. Unfortunate and preventable, obviously the canopy was not latched as stated. |
#204
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Fatal Towplane Accident 5-9-20
The glider pilot did go thru a pre-launch checklist that included checking that the canopy was closed and locked. I don't see how more training and drilling on checklists and procedures could have prevented this accident. It's not clear from the report what sort of canopy or if checking included pushing up on the plexi to try to open it. Definitely a sad day. |
#205
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Fatal Towplane Accident 5-9-20
If you don’t physically push (lightly ) up on canopy after it is closed and locked you will have a inflight opening eventually. A tried and true failsafe
Just watch and see who at your club is actually doing that final crucial piece of the puzzle Once I pushed lightly up just before launch and couldn’t believe I had forgotten to lock the canopy , it was at a different airport and things were different , or I was , I had opened the canopy more then once The final push revealed the sin Watch for sinners and tongue lash them |
#206
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Quote:
https://en.wikipedia.org/wiki/Transavia_PL-12_Airtruk |
#207
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Fatal Towplane Accident 5-9-20
I also forgot to latch the canopy once, but it has a forward hinge, so it just rattled a bit. I latched it after releasing from tow. A side hinge canopy should ALWAYS get some fingerprints on the inside of the plexiglass. EVERY TIME! It's a lot easier (and CHEAPER!) to clean off the greasy fingerprints than to hunt down all the shards and pay for a replacement.
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#208
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Fatal Towplane Accident 5-9-20
Watch for sinners and tongue lash them I feel irritated when people go around telling people that their way is the only way. There is more than one way to confirm that the canopy is latched. If you tongue lash me you will regret it. Boggs |
#209
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Fatal Towplane Accident 5-9-20
On Thursday, June 4, 2020 at 1:17:30 PM UTC-4, Hightime wrote:
If you don’t physically push (lightly ) up on canopy after it is closed and locked you will have a inflight opening eventually. A tried and true failsafe Just watch and see who at your club is actually doing that final crucial piece of the puzzle Once I pushed lightly up just before launch and couldn’t believe I had forgotten to lock the canopy , it was at a different airport and things were different , or I was , I had opened the canopy more then once The final push revealed the sin Watch for sinners and tongue lash them It is more likely that it is what you don't do than what you do that creates the bigger problem. Having the canopy latched is different than having the canopy latched and locked. Again, if you lose sight of the tow plane simply release immediately. |
#210
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Fatal Towplane Accident 5-9-20
And if you really want to get someone to understand the problem and change, tongue lashing is not a good way to do it. Berating someone rarely gets them to change.
Boggs |
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