Jump to content

Sign in to follow this  
JSACKS

How do you restart a failed 747-400 engine in flight ?

Recommended Posts

What is the procedure for relighting an engine in the 747-400 if it flames out because of compressor stall in, say, turbulence, or if there has been fuel starvation while in cruise mode?Jonathan


Jonathan Sacks

Dell XPS Gen 4, Pentium IV Northwood extreme 3.8Ghz, 3Ghz RAM, eVGA 7900 GTO,

12 GoFlight modules plus MCP-PRO AP and EFIS, GF pedestal, CH rudder pedals,

CH throttle quadrant, 42" LG LED, 24" DELL LCD, Windows XP, FS2004, FSUIPC 3.96

FS Autostart 1.1 (Build 11), FS Navigator 4.6, UT, FE, GE, REX, PMDG, Level-D, PSS, etc.

Share this post


Link to post

Usually my engines restart automatically. Occasionally they don't though. So, move the fuel control to CUTOFF, then RUN. If your airspeed is less then 220KIAS, then set your PACKS (max 1 on) and pull the start switch. Ryan GamurotLucky to live Hawai'ihttp://www.virtualpilots.org/signatures/vpa296.png


Ryan Gamurot
 

Share this post


Link to post

In theory, the engines should detect a flameout and restart themselves automatically. However, the pilots may have to help them along, by ensuring that engines are windmilling fast enough (if not, they will have to either crossbleed bleed air from the other engines or point the nose downwards to build up airspeed to assist the start). The EICAS should give you the correct altitudes/speeds for a relight.Although the ignitors automatically fire up during a flameout, the pilots are told to select CONTinuous ignition to manually override the automatics. They are also told to cycle the applicable fuel cutoff switches.Hope this helps.Cheers.Q>

Share this post


Link to post
Guest AJ

Alternatively, descend to 10,000 feet, and then order your FO to go downstairs and locate the emergency exit over the the wing with the stalled engine. The next task to to open the door (after politely asking the passengers blocking the door to move). Next he should climb out on the wing until he is directly over the engeine in question (important: FOs can occasionally be a little dense, so be sure to tell him/her to be carefull not to fall off). Now comes the hard part: On top of the engine, there should be a small plastic handle attatched to a pull string. He should pull this handle as hard as he can, just like on a lawn-mower. He may need to try it several times before the engine catches.Andrew

Share this post


Link to post

>Alternatively, descend to 10,000 feet, and then order your FO>to go downstairs and locate the emergency exit over the the>wing with the stalled engine. >>The next task to to open the door (after politely asking the>passengers blocking the door to move). Next he should climb>out on the wing until he is directly over the engeine in>question (important: FOs can occasionally be a little dense,>so be sure to tell him/her to be carefull not to fall off). >Now comes the hard part: On top of the engine, there should>be a small plastic handle attatched to a pull string. He>should pull this handle as hard as he can, just like on a>lawn-mower. He may need to try it several times before the>engine catches.Don't forget to slow down as much as possible so you don't sweep him off the wing! :(Ryan GamurotLucky to live Hawai'ihttp://www.virtualpilots.org/signatures/vpa296.png


Ryan Gamurot
 

Share this post


Link to post

Ah, so it's the STRING he has to pull, eh? That's what I was missing all this time.Jonathan


Jonathan Sacks

Dell XPS Gen 4, Pentium IV Northwood extreme 3.8Ghz, 3Ghz RAM, eVGA 7900 GTO,

12 GoFlight modules plus MCP-PRO AP and EFIS, GF pedestal, CH rudder pedals,

CH throttle quadrant, 42" LG LED, 24" DELL LCD, Windows XP, FS2004, FSUIPC 3.96

FS Autostart 1.1 (Build 11), FS Navigator 4.6, UT, FE, GE, REX, PMDG, Level-D, PSS, etc.

Share this post


Link to post
Guest Sean Reeder

from the manualCondition: Engines have flamed out, or engines have abnormal indications or exceededlimits or engines make abnormal noises, or engines respond abnormally to thrustlever movement.CREW ACTION:FUEL CONTROL SWITCH (Affected Engines)

Share this post


Link to post

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.
  • Donation Goals

    AVSIM's 2020 Fundraising Goal

    Donate to our annual general fundraising goal. This donation keeps our doors open and providing you service 24 x 7 x 365. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. We reset this goal every new year for the following year's goal.


    2%
    $640.00 of $25,000.00 Donate Now
×
×
  • Create New...