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Tools Used In A,B,C,D Checks  
User currently offlinedonohuep From United States of America, joined Nov 2012, 4 posts, RR: 0
Posted (3 years 6 months 12 hours ago) and read 4285 times:

I understand that not everyone performs the letter checks the same way, but the tools they use for the work under each check should be similar. Right? What types of tools (screw drivers, strippers, crimpers, air drills, etc.) are used for each letter check?

9 replies: All unread, jump to last
User currently onlinefr8mech From United States of America, joined Sep 2005, 6699 posts, RR: 16
Reply 1, posted (3 years 6 months 11 hours ago) and read 4258 times:

The same tools that are used in line maintenance. The same hand tools that remove a flight deck seat on the line will remove a flight deck seat in a check.

Now, when you get into heavy checks, you will be using specific tools or equipment to remove, replace and rig/adj. the component replaced.

These tools can be general (slings, hoists, shackles, etc.) or specialized (rigging bars, protractors, electronic testers, rig pins, etc.).

When seconds count...the police are minutes away.
User currently offlinedonohuep From United States of America, joined Nov 2012, 4 posts, RR: 0
Reply 2, posted (3 years 6 months 5 hours ago) and read 4149 times:

Thank you fr8mech Every other thread has discussed the time/intervals of the checks but none have actually gone into the detail of what each check requires. I think if I knew what the checks consist of then I would have an idea of what tools are most commonly used.

User currently offlineRoseflyer From United States of America, joined Feb 2004, 11166 posts, RR: 52
Reply 3, posted (3 years 6 months 5 hours ago) and read 4142 times:

The manufacture establishes the basis of the maintenance program and also all the equipment necessary. There is some highly specialized tooling to accomplish some of the heavy check maintenance procedures. For example replacing a jackscrew requires special tooling and virtually requires a hangar.

It's hard to get into what is required unless you have the maintenance manual.

If you have never designed an airplane part before, let the real designers do the work!
User currently offlinedonohuep From United States of America, joined Nov 2012, 4 posts, RR: 0
Reply 4, posted (3 years 6 months 5 hours ago) and read 4139 times:

I just wanted a general idea on a really common aircraft like a 737 or a A320 but it looks like it gets complex and I would have to take a look at a maintenance manual to even get a general sense. Thank you Roseflyer!

User currently offlinestrfyr51 From United States of America, joined Apr 2012, 2085 posts, RR: 1
Reply 5, posted (3 years 6 months 4 hours ago) and read 4103 times:
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there are very few special tools used for Airliner servicing. each mechanics tool box should contain wrenches from 1/4" thru 1",sockets from 1/4 thru 1" deep amd shallow, pliers, Dikes, Safety wire pliers, feeler gauges, a number if screw drivers both Straight and Phillips, I also have Mac angle 15-60 wrenches, Universal sockets (snap on) 1/4 ,3/8 and 1/2" socket and ratchets 1"-21/2" Bonny wrenches. Torque wrenches, Mirrors Fingers flashlights, and a number of other specialty tools I've made over the last 43 Years Sears has a very nice list of Aircraft mechanic tool list as does Snap On, Mac, or Matco .Buy Good Tools right of the bat and you won't buy them but Once. Buy cheap tools and you'll Never finish buying tools The Craftsman tools by sears are OK to start with but the Matte finish tools lose chrome plating over time. the Pro series tools though a little more expensive will last a lifetime. Sears Universal sockets and Mac universal sockets will break over time, I own Snap on and I've never had one break, EVER.

User currently offlinetdscanuck From Canada, joined Jan 2006, 12710 posts, RR: 78
Reply 6, posted (3 years 6 months 1 hour ago) and read 4068 times:

Quoting donohuep (Reply 2):
I think if I knew what the checks consist of then I would have an idea of what tools are most commonly used.

As Roseflyer said, it depends a lot on the specific procedures. But, in general, a heavy check is going to consist of:
-Remove all the access panels on everything
-Replace all the consumables (filters, etc.)
-Visually inspect everything
-NDT significant structural members
-Check the rig of all movable bits
-Put everything back together
-Functionally check everything


User currently offlinem1m2 From Canada, joined Dec 2011, 137 posts, RR: 0
Reply 7, posted (3 years 5 months 4 weeks 1 day 18 hours ago) and read 3942 times:

In C checks the borescope is often used to look inside ailerons and elevators to see what isn't visible any other way. Sometimes the flight control is removed and sometimes you can accomplish this with it still installed, depends on how hard it is to access.

User currently offlineHAWK21M From India, joined Jan 2001, 31875 posts, RR: 54
Reply 8, posted (3 years 5 months 4 weeks 1 day 17 hours ago) and read 3934 times:

The tool list for the check at hand will list out the needed tools for that check in progress.......stores will ensure the same are available,calibrated serviceable for use.
This could mean Torque wrenches, measuring equipment, special sized tools, hoisting equipment, rigging equipment etc.

Think of the brighter side!
User currently offlinedonohuep From United States of America, joined Nov 2012, 4 posts, RR: 0
Reply 9, posted (3 years 5 months 4 weeks 1 day 10 hours ago) and read 3869 times:

Thank you everyone   This is great information!

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