Go Back  PPRuNe Forums > Flight Deck Forums > Tech Log
Reload this Page >

B-737 Classic - Landing,Taxy and Turn off light limits

Wikiposts
Search
Tech Log The very best in practical technical discussion on the web

B-737 Classic - Landing,Taxy and Turn off light limits

Thread Tools
 
Search this Thread
 
Old 16th Dec 2006, 15:28
  #1 (permalink)  
Thread Starter
 
Join Date: Jun 2005
Location: LIRR
Posts: 140
Likes: 0
Received 0 Likes on 0 Posts
B-737 Classic - Landing,Taxy and Turn off light limits

May be I missed it before, but does anybody know if there are limitations affecting the use of the above mentioned lights during ground ops.
On the B-707 we had some limiting the use for max 5 minutes if not taxying.

Thanks

100
onehundred is offline  
Old 16th Dec 2006, 16:24
  #2 (permalink)  
Warning Toxic!
Disgusted of Tunbridge
 
Join Date: Jan 2005
Location: Hampshire, UK
Posts: 4,011
Likes: 0
Received 0 Likes on 0 Posts
There are no limitations.
Rainboe is offline  
Old 16th Dec 2006, 17:13
  #3 (permalink)  
Per Ardua ad Astraeus
 
Join Date: Mar 2000
Location: UK
Posts: 18,579
Likes: 0
Received 0 Likes on 0 Posts
CaptainSandl reckons there is!
BOAC is offline  
Old 16th Dec 2006, 18:14
  #4 (permalink)  
 
Join Date: Aug 2001
Location: Europe
Posts: 117
Likes: 0
Received 0 Likes on 0 Posts
Quote from the Manual:
The lights are designed to extend and shine forward, parallel to the waterline of the airplane. The lights may be extended at any speed.

This is true for the Classic ("Outboard Landing Lights") and NG ("Retractable Landing Lights").

Last edited by dolly737; 16th Dec 2006 at 18:15. Reason: typo
dolly737 is offline  
Old 16th Dec 2006, 18:18
  #5 (permalink)  
 
Join Date: Jun 2002
Location: In my own world
Age: 47
Posts: 38
Likes: 0
Received 0 Likes on 0 Posts
This isn't a Boeing limitation, CB is just pointing out on his website that extending the retractable lights above 250 kts will wear the assembly more quickly, hence why EZY have asked us drivers not to do it.

On a separate note, during command training one dark and wet night in AMS, a training captain criticised me for switching on the fixed landing lights momentarily to illuminate the taxiway, stating they would burn out due to lack of airflow over them. Not too sure about that, but again it's not a limitation or a contravention of SOP, so do as you like! :-)
Drop The Dunlops is offline  
Old 17th Dec 2006, 10:36
  #6 (permalink)  
 
Join Date: Dec 2000
Location: very close to STN!!
Posts: 523
Likes: 0
Received 0 Likes on 0 Posts
Talking resistance--

that's not to mention, the adverse resistance that the photons would produce, increasing the fuel burn and slowing the aircraft down!!!

some checkairmen must find it necessary to dig deep at times to find something/anything to correct upon.

one checkride i had, all he could write up was that i should leave my shoulder straps on until parking brake was set!!!!! god i love flying on the edge!!!
stator vane is offline  
Old 17th Dec 2006, 11:06
  #7 (permalink)  
 
Join Date: Jun 2000
Location: Australia
Posts: 4,188
Likes: 0
Received 14 Likes on 5 Posts
Reminds me of the 737 pushback in Taipei with engines running but A System depressurised and APU supplying the buses. Engineer driving tractor complains he is being blinded by nose wheel light and asks the crew to switch of the thing. Captains swears (they do that sometimes) and by mistake switches of the APU switch which is the switch adjacent to nose wheel light switch. Result instant semi-darkness due no AC power and loud swearing from Chinese engineer who was hurled from his truck by busted tow bar which tried to centralise the nose wheel after the A system hydraulics pressurised.
Centaurus is offline  
Old 17th Dec 2006, 12:53
  #8 (permalink)  
 
Join Date: Mar 2006
Location: USA
Posts: 2,527
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Centaurus
Reminds me of the 737 pushback in Taipei with engines running but A System depressurised and APU supplying the buses. Engineer driving tractor complains he is being blinded by nose wheel light and asks the crew to switch of the thing. Captains swears (they do that sometimes) and by mistake switches of the APU switch which is the switch adjacent to nose wheel light switch. Result instant semi-darkness due no AC power and loud swearing from Chinese engineer who was hurled from his truck by busted tow bar which tried to centralise the nose wheel after the A system hydraulics pressurised.
LOL that made my day...I don't fly 737's, but why would the A system suddenly pressurize?
Check Airman is offline  
Old 17th Dec 2006, 13:28
  #9 (permalink)  
 
Join Date: Apr 2005
Location: Stockholm Sweden
Age: 74
Posts: 569
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Check Airman
LOL that made my day...I don't fly 737's, but why would the A system suddenly pressurize?
The old B737 had no steering lock out pin, so you turned off the A sys engine driven pumps and then started the engines.
Losing electrics means that the depressurisation solenoids relax and allow full hyd pressure into the system.
EDP depressurisation solenoids are always energised for OFF.
Swedish Steve is offline  
Old 17th Dec 2006, 19:52
  #10 (permalink)  
 
Join Date: Nov 2006
Location: earth
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by onehundred
May be I missed it before, but does anybody know if there are limitations affecting the use of the above mentioned lights during ground ops.
On the B-707 we had some limiting the use for max 5 minutes if not taxying.

Thanks

100
the only limitation is to momentarily use unless in motion, that means if you are in motion there's no limitation,but as soon as you stop it should go out.
super 27 is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.