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AvgWhiteGuy
Topic Author
Posts: 35
Joined: Tue Jun 25, 2019 2:44 pm

Crashes of commercial flights due to pitot covers left on

Fri Apr 30, 2021 4:23 pm

Not due to ice blockage, not due heat failing, not due to anything else except the covers being left on - maintenance or otherwise. If a GA crash is near and dear to you, then please feel free
to mention the particulars of that.

Thank you.
 
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T18
Posts: 853
Joined: Sat Jan 31, 2009 12:28 am

Re: Crashes of commercial flights due to pitot covers left on

Fri Apr 30, 2021 4:51 pm

Not pitot tubes but tape on static ports - https://en.wikipedia.org/wiki/Aeroper%C3%BA_Flight_603
 
extender
Posts: 979
Joined: Thu Oct 18, 2007 2:52 am

Re: Crashes of commercial flights due to pitot covers left on

Fri Apr 30, 2021 4:53 pm

I know of at least two 757s that crashed from issues with the pitot static system.

Aero Peru Flight 603

Alas Nacionales Flight 301
 
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Horstroad
Posts: 608
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Re: Crashes of commercial flights due to pitot covers left on

Fri Apr 30, 2021 5:42 pm

Blocked pitot probes isn't much of a problem and shouldn't result in a crash if they have been blocked before take off. You simply wouldn't see a speed increase during the take off roll and would abort. That's what the 80 or 100 knots callout is there for.
Blocked static ports are a bit more tricky. You wouldn't notice until after you start to climb. Only then would you see a decrease in airspeed and no change in altitude.
 
debonair
Posts: 4339
Joined: Sat Jan 03, 2004 10:50 pm

Re: Crashes of commercial flights due to pitot covers left on

Fri Apr 30, 2021 11:29 pm

extender wrote:
I know of at least two 757s that crashed from issues with the pitot static system.

Aero Peru Flight 603

Alas Nacionales Flight 301


The Alas Nacionales crash happened due to the lack of pitot covers, which would have most probably prevented the erroneous speed indication.
 
AvgWhiteGuy
Topic Author
Posts: 35
Joined: Tue Jun 25, 2019 2:44 pm

Re: Crashes of commercial flights due to pitot covers left on

Fri Apr 30, 2021 11:41 pm

Thank you for your replies. Perhaps the better question would have been crashes that happened because of intentional blockage of the static ports. As I pilot, I do realize that no airspeed would almost certainly trigger an abort, but I thought there was a plane that managed to get airborne with them on.
So...any other crashes, other than the ones already listed, where the static ports were covered by maintenance, painters, etc. and the end result was a crash?
Promise, there's a point to this.
 
a320fan
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Joined: Fri May 01, 2009 5:04 am

Re: Crashes of commercial flights due to pitot covers left on

Sat May 01, 2021 3:04 am

XL Airways 888T was an A320 that lost control on a test flight in France after repainting into Air New Zealand livery because water got into the AoA sensors during the repaint process, froze during the flight and played havoc with the flight control protections system.
 
VSMUT
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Joined: Mon Aug 08, 2016 11:40 am

Re: Crashes of commercial flights due to pitot covers left on

Sat May 01, 2021 10:37 am

Birgenair 301, a 757, suspected that wasps had built a nest in one of the pitot tubes:
https://en.wikipedia.org/wiki/Birgenair_Flight_301

Pitot tubes get really hot when heating is on. I've seen them glowing red-hot. If you left the cover on, it would probably melt/burn off.
 
debonair
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Re: Crashes of commercial flights due to pitot covers left on

Sat May 01, 2021 4:44 pm

VSMUT wrote:
Birgenair 301, a 757, suspected that wasps had built a nest in one of the pitot tubes:
https://en.wikipedia.org/wiki/Birgenair_Flight_301

Pitot tubes get really hot when heating is on. I've seen them glowing red-hot. If you left the cover on, it would probably melt/burn off.


Yes, as written above. The airline was actually Alas Nacionales, but operated by Birgen Air. There a lot if crashes with pitot tubes problems, like AF447 as well, but the question was regarding "covers left on"... So none of these crashes account for.
 
LCDFlight
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Joined: Wed Jan 01, 2020 9:22 pm

Re: Crashes of commercial flights due to pitot covers left on

Sat May 01, 2021 5:48 pm

This feels like a photographer forgetting to take the lens cap off.
 
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vhqpa
Posts: 1787
Joined: Mon Jul 04, 2005 8:21 pm

Re: Crashes of commercial flights due to pitot covers left on

Sun May 02, 2021 3:28 am

Horstroad wrote:
Blocked pitot probes isn't much of a problem and shouldn't result in a crash if they have been blocked before take off. You simply wouldn't see a speed increase during the take off roll and would abort. That's what the 80 or 100 knots callout is there for.
Blocked static ports are a bit more tricky. You wouldn't notice until after you start to climb. Only then would you see a decrease in airspeed and no change in altitude.


You'd hope so, but there was an incident with at BNE a few years ago where a MH A330 took off despite abnormalities with the airspeed indicators with all three pitot covers in place. Luckily they were able to turn around and land safely.

https://aviation-safety.net/wikibase/wiki.php?id=213551

https://www.atsb.gov.au/publications/investigation_reports/2018/aair/ao-2018-053

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