Go Back  PPRuNe Forums > Ground & Other Ops Forums > Engineers & Technicians
Reload this Page >

Boeing 737NG Control Wheel tolerances

Engineers & Technicians In this day and age of increased CRM and safety awareness, a forum for the guys and girls who keep our a/c serviceable.

Boeing 737NG Control Wheel tolerances

Old 7th Dec 2018, 20:52
  #1 (permalink)  
Thread Starter
 
Join Date: Sep 2018
Location: Oslo
Posts: 3
Boeing 737NG Control Wheel tolerances

Hi Guys!
Im working as a Simulator technician, and a former Aircraft Engineer.
Since my new company isnt within a Airline we are not able to accsess the AMM, and that can from time to time be a bit challenging.
So, on our Boeing 737NG simulator it have been snagged that the control wheel/collums have several centimeters of play in all directions. And yes, thats true. But before we start overhauling the entire flight control system on this badass i want to check what the AMM says regarding tolerances of play on the collum and wheel.

Are any of you able to help me out, by checking this in the AMM? Im pretty sure the manual describes the test by using a inclinometer, and checking deflection etc...
Im greatfull for any help/information
catech is offline  
Old 24th Feb 2019, 05:11
  #2 (permalink)  
 
Join Date: Sep 2007
Location: Where The Widget Flies
Age: 32
Posts: 11
I'll check and see when I get back to a work computer. I would think if you haven't done it already, to try and get it into a neutral slack rigging if you can. Just from my "hangar pilot" experience, there doesn't seem to be much of any slack in the feel of the yoke.
alcan60283 is offline  
Old 16th Mar 2019, 10:56
  #3 (permalink)  
 
Join Date: Dec 2012
Location: Epsom
Posts: 154
Not sure you should be referring to an AMM in this case, surely there's a simulator manual available? Given the length of control run on a sim is small by comparison to the real thing then I suspect you have something seriously amiss, if you have several cm of play.
Epsomdog is offline  
Old 16th Mar 2019, 11:15
  #4 (permalink)  
Thread Starter
 
Join Date: Sep 2018
Location: Oslo
Posts: 3
Originally Posted by Epsomdog View Post
Not sure you should be referring to an AMM in this case, surely there's a simulator manual available? Given the length of control run on a sim is small by comparison to the real thing then I suspect you have something seriously amiss, if you have several cm of play.
First of all, we use the AMM because we can compare it towards the limitations on the real aircraft. The sim is from 1998, so yes, the load units/cables etc are worn, but as long as they are within limits its no point in overhauling the system wich takes serius amount of downtime. The Simulator Manual really doesnt give us any good indication. This is a subjective snag from a pilot, and our quality test guide will provide us with a automatic test that is testing the control collum deflection of the simulated ailerons/spoilers. But again, this is a subjective snag, so to close it with a decent explenation, refering to the AMM would have been great.
catech is offline  
Old 17th Mar 2019, 09:24
  #5 (permalink)  
Gender Faculty Specialist
 
Join Date: Mar 2002
Location: Stop being so stupid, it's my turn
Posts: 1,714
From my check flying days I seem to remember a total of 1.5 inches free play was allowed.

I'll try and find the official document.
Chesty Morgan 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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.