feb 01 westjet rejects t/o..

[pdw]

Jet transport tires are inflated up around the 250 psi range and you really don't want them going kaboom anytime or anywhere. That's why they're fitted with fuse plugs that melt and let the air out before that happens. I don't think it's heat that makes them fail but I could be wrong.

OK, so when the rim comes apart it's a completely different failure ... a kaboom vs the weaker psst..psst ..psst

[pdw]

Regarding Air France:


I never trust articles about reports. Just go to the report itself.

sure enough its in there

For a tailwind of 8 kts the takeoff weight is reduced ... due to a tire speed limitation.

[BTD]

Regarding Air France:


I never trust articles about reports. Just go to the report itself.

sure enough its in there

For a tailwind of 8 kts the takeoff weight is reduced ... due to a tire speed limitation.

My comment was regarding the post that engine 1 didn't fail and was accidentally shut down.

[pelmet]

It will be interesting to hear more about this one as the runway at 7218' is a little more critical.

2016-02-24

A WestJet Boeing 737-700, C-FIWJ, was operating as flight WJA2253 from Loreto Intl, Mexico (MMLT) to Calgary Intl, AB (CYYC). During the take-off roll on Runway 34, the crew experienced a distinct and sudden yaw to the right at approximately 120 knots. The take-off was aborted and the aircraft was stopped on the runway; ARFF was requested as a precaution. There were no indications in the flight deck, and external assessment revealed no issues. The aircraft was towed back to the terminal for further investigation. The Mexican DGAC has been notified and is investigating the incident. No cause has been determined yet, and the operator’s investigation is in progress.

[cjet]

V1 on a fully loaded 800 will be upwards of 150 kts.

Cjet

[pdw]

What's tire speed at 150kts-IAS at a hot&humid 29C and a high 7218' ?

(Pelmet: Rwy is 350T .. component 10kts NNW/10rh changes abruptly approx 2pm /departuretime to WNW/85rh 20-25kts / MMLT)

More "right yaw" (swerves right) from a sudden left component at "120kts" at a high gear speed in MMLT?


For the RTO discussion, at the 7812' destination probably just have to make sure the tires are newer originals (ie not half-worn recaps) and have a high-as-possible speed rating. Also, the higher alt is like a higher inflation (more swervy with less friction) ... which means also slower heatup of the tires on that take-off roll.

[Donald]

http://avherald.com/h?article=495ae6ef&opt=0

Mar 20th 2016, runway excursion during rejected takeoff due to blown tyre

By Simon Hradecky, created Sunday, Mar 20th 2016 19:40Z, last updated Sunday, Mar 20th 2016 19:40Z
A Peruvian Airlines Boeing 737-500, registration OB-2041-P performing flight P9-218 from Cuzco to Lima (Peru) with 120 people on board, was accelerating for takeoff from runway 10 when a right hand tyre burst prompting the crew to reject takeoff. The aircraft veered left off the runway and overran the end of the runway coming to a stop with all gear on soft ground. The aircraft was evacuated via slides. Emergency services assisted in the evacuation and cooled the brakes.

The airline reported there were no injuries.

Emergency services reported there was a problem with the brakes causing the tyre to burst, the aircraft subsequently veered off the runway.

[pelmet]

The updated information states that the airline says that there was an engine problem.

[brooks]

Heard a rumour it took 10 minutes or more for the CFR to arrive on the scene. Any truth to this?