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

B737 Trailing Edge Flap Asymmetry

Wikiposts
Search

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

B737 Trailing Edge Flap Asymmetry

Thread Tools
 
Search this Thread
 
Old 17th October 2019 | 04:21
  #1 (permalink)  
Thread Starter
 
Joined: Jan 2003
Posts: 78
Likes: 0
From: alaska
B737 Trailing Edge Flap Asymmetry

QRH question: "Set the flap fever to the nearest detent that is equal to or less than the smallest indicated flap position"

1.So if my TE needles are split during retraction due to Assym (L--5 / R -- Btw 2 and 1) Do I set the flap lever to 1?

2. If my TE needles are split during retraction due to Assym (L--15 / R -- Btw 5 and 2 needle being closer to 5) Do I set the flap lever to 2?

thanks

Wilco



wilco77 is offline  
Reply
Old 17th October 2019 | 07:44
  #2 (permalink)  
 
Joined: Aug 2000
Posts: 123
Likes: 0
From: Almost horizontal
That’s how I would read it.
Too Few Stripes is offline  
Reply
Old 17th October 2019 | 09:21
  #3 (permalink)  
20 Anniversary
 
Joined: Nov 2004
Posts: 79
Likes: 0
From: everywhere
Same here, don't over think it
Antonio Montana is offline  
Reply
Old 17th October 2019 | 12:48
  #4 (permalink)  
 
Joined: Jun 2019
Posts: 210
Likes: 0
From: VA
Agree with other replies, but I’ll add that if the asymmetry trip system is working properly, the flap should never get so far out as example #2.
Tomaski is offline  
Reply
Old 17th October 2019 | 14:14
  #5 (permalink)  
25 Anniversary
 
Joined: Mar 2001
Posts: 1,064
Likes: 8
From: Either the back of a sim, or wherever Crewing send me.
if the asymmetry trip system is working properly, the flap should never get so far out as example #2.
They won’t get anywhere near that far out of kilter unless there is a fault in the protection system. However, to answer your question, you do as directed by the QRH and set the flap lever to the lowest flap setting, this helps you identify what speed to set for your approach.
Johnny F@rt Pants is offline  
Reply
Old 17th October 2019 | 15:02
  #6 (permalink)  
20 Anniversary
 
Joined: Apr 2004
Posts: 775
Likes: 2
From: near EDDF
Originally Posted by wilco77
QRH question: "Set the flap fever to the nearest detent that is equal to or less than the smallest indicated flap position"
1.So if my TE needles are split during retraction due to Assym (L--5 / R -- Btw 2 and 1) Do I set the flap lever to 1?
2. If my TE needles are split during retraction due to Assym (L--15 / R -- Btw 5 and 2 needle being closer to 5) Do I set the flap lever to 2?
The split to get into Flap Asymmetry is not that high.
If L is 5 than R is more than 2.
If L is 15 than R is close to 10.
IFixPlanes 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.