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

747-8 Start Valve Positions

Wikiposts
Search

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

747-8 Start Valve Positions

Thread Tools
 
Search this Thread
 
Old 27th January 2025 | 06:22
  #1 (permalink)  
Thread Starter
 
Joined: Jan 2025
Posts: 1
Likes: 0
From: 38000
747-8 Start Valve Positions

Going through the starting procedures on the GEnx - curious to know about the start valves position relative to the start switch. For a normal (auto) start, after all is done the start valve will close and the start switch retract.

But abnormal/failed starts - we know the start switch doesn't retract automatically. But does the start valve closes by itself? The assumption is yes, as the EEC stops the start altogether
SkyhawkFlyer99 is offline  
Reply

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 © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.