Jump to content
Sign in to follow this  
Tabs

Real AA 767 off the runway at LAX!

Recommended Posts

Fox news is showing it right now - somethign happened and the plane crashed through a fence and onto the street! No one hurt it looks like fortunately, but a pretty amazing scene...


Ryan Maziarz
devteam.jpg

For fastest support, please submit a ticket at http://support.precisionmanuals.com

Share this post


Link to post
Share on other sites
Guest TerryT

I found this online http://www.nbc4.tv/news/1391241/detail.htmlIt looks like the 767 just rolled from it's parking spot near a maint hanger. Note in the picture the second 767 near the top of the picture. See how close they are parked to the fence/freeway. Sounds like someone did "Not" put the chocks under the wheels.Terry

Share this post


Link to post
Share on other sites
Guest

Another job opportunity at KLAX ;-)Rob.

Share this post


Link to post
Share on other sites
Guest

Well, actually the RW AOM for the 757/767 has all sorts of warnings about the parking brake. Seems we can pull the brake lever on without the brake actually being applied. All the light indicates is the parking brake handle being extended and the related valves are closed.One of those "gotchas"Timothy

Share this post


Link to post
Share on other sites
Guest KenG

Hope Eric didn't park that bird. ;-)

Share this post


Link to post
Share on other sites
Guest

If he did it will give him more time to develop his next panel :-lol

Share this post


Link to post
Share on other sites
Guest

There you go again making assumptions DK.....the parking brake system will trap fluid that is applying brake pressure and close off the parking brake valve to prevent the pressure trapped in the lines holding the pads from escaping.A brake accumulator in the normal brake system can supply brake pressure when no hydraulic power exists in L/R system. Timothy

Share this post


Link to post
Share on other sites
Guest

I THINK that you need to step on the brake pedals when setting the parking brake. I'm not positive on this, but maybe the mechanic THOUGHT he stepped hard enough, got off the aircraft, the a breeze or gust started the roll.

Share this post


Link to post
Share on other sites
Guest Ian_Riddell

"I THINK that you need to step on the brake pedals when setting the parking brake. I'm not positive on this, but maybe the mechanic THOUGHT he stepped hard enough, got off the aircraft, the a breeze or gust started the roll."I think you'll find that the distance (angle) you have to push the pedals to get the park brake lever and rudder pedals to mechanically latch will provide more than enough pressure to park the brakes properly (assuming there is sufficient hydraulic system pressure available in the first place). For example, full travel of 747-400 brake pedals is 17 degrees. You have to push the pedals through an angle of 15 degrees or more to make the pedals and park brake lever latch properly (this angle is 13.0 to 14.5 degrees on a 767). On a 767, a mere 9 degrees of pedal movement should apply something in the order of 2600psi to the brakes. Irrespective of whether the parking brake was set properly, the AA engineer(s) should have chocked the wheels. Eventually, i.e. over a long period, you will lose pressure in the brake system and the brakes will release. The park brake system on a 767 is designed to hold the brakes for a minimum of 8 hours.The parking brake valve (which keeps pressure on the brakes) needs electric power (dc) to operate. This is provided by the Hot Battery Bus.Cheers.Ian.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Tom Allensworth,
    Founder of AVSIM Online


  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
×
×
  • Create New...