Touch Down

TD protection has been a safety feature on the brake system of jetliners for a long time. That contraction for touch down protection is in such common use that............

Short_Circuit's post about losing TD protection once anti-skid is not available really exposed something BIG. Hints anyone?:rolleyes:

On a Boeing "Touchdown protection" prevents the brakes being applied, until wheel spin up to within a few knots of IRU ground speed, by using the Anti Skid system.

Kinte, I too am wondering about the credentials of the guys who had trouble understanding what TD protection is.

Pprune is sure a strange place with all kinds of actors.

Maybe these "actors" fly something other than a Boeing?

If you land with your feet on the brakes, you'll probably blow the tyres? :}

I'll need some more hints maybe! :E

Your need for hints is something I can't fathom but I know you are :O:O:O and :*:*:*

I remember a few years back - a 737 was dispatched anti-skid inop. The DDG indicated to use maximum manual braking.

If my memory serves me correctly - The 737 landed on 25 in Sydney. It had stopped by Charlie taxiway. I am not sure how long the tyres lasted before it was towed.


(The DDG obviously had an error in it which was subsequently amended!!)

On the A330, if I remember right with anti-skid off we had to limit brake pressure to 1000 psi. Quite hard to do so in short bumpy runways .

They were told to apply 'breaking' so they broke it! 'Braking' may have been the intention.

Indeed. Well spotted.

I believe the PF (capt) was the one who took this instruction literally , I'll assume you mean both of his feet and not the PNF.:ok:

A few years back I flew regularly with an FO who counted English as a second or third language. His approach briefing often included his intention to make "a short field landing with maximum breakage..." Fortunately he never succeeded.....

Not sure what happened to my previous post but the question was why would you not declare a PAN if you thought that you had a blown tyre and that it might cause landing difficulties?
This thread is questioning why would you declare a PAN if the antiskid went inop, today a QF aircraft did not declare a PAN when they thought they had tyre problems but wanted the emergency services on standby(which automatically happens if you declare a PAN). Its irrelevant which airline it is but what would be the reason in not declaring a PAN if you think there might be landing problems and you want emergency services?

Is it the media interest or is it a fear of Flt Ops giving you a bollocking in this world of Just Culture?

The posts were removed because this thread is about a different flight, different situation.

Your call boss but the original post was about why was a PAN call made, I was trying to generate discussion on why a PAN call was not made. No problems I will just start a different thread.:ok: