Posts: 153
Joined: Wed Dec 22, 2004 5:07 am

Difference Between Different Checks

Sun Mar 27, 2005 12:25 am

What's the difference between all the checks that airplanse go through. I know that at a D-check the plane is being stripped from its paint and that every single bolt is checked.
How long do the different checks usually take ?

Thanks for your input.
Posts: 188
Joined: Sun Oct 17, 2004 5:33 pm

RE: Difference Between Different Checks

Sun Mar 27, 2005 6:38 am

I really wish someone would answer this - cos it has been bugging me for a while too!

4 engines 4 long haul
Posts: 2412
Joined: Fri Jul 28, 2000 3:19 am

RE: Difference Between Different Checks

Sun Mar 27, 2005 12:41 pm

It can vary by the airlines approved program. I know Delta's programs vary by aircraft type. I work on the MD88 HMV line. Our 88's fly for six years between heavy checks. They only get a overnight visits for basicly lube jobs between heavy checks. The heavy check lasts about a month, and no the plane does not get stripped of paint. It is a very detailed inspection of the airplane though. All areas get looked at for corrosion and structural defects. It is also a good time to do any extensive mods on the plane, like adding a hud system or changing the interior.

Other types, like the 737-800 only get PSV checks. These checks are only a few days long and spread the heavy check items out over the same six years. Our 767/757 fleet get a hybrid of the two.

Go over to the Tech/Ops board and do a search. This topic has been covered over there in a lot more depth.