The reason I questioned you was because of this statement:
While WN has like 3-4 different check hangars throughout their system but the check levels vary from station to station. And thats the confusing part for me. One C-check at a certain station is not done the same way as another C-Check is done at a different station. Does that make sense?
To the casual observer, it makes us sound like we are running an inconsistent, haphazard MX
program, which is simply not true. I will explain in more detail...
In PHX, Hangar #1 is used to do two very intermediate B & C-checks that last for 2 days approx. at the same time.
This is no longer true. Here is how the B/C checks break down:
B/C checks are done in DAL
. There is one line in DAL
, two lines in HOU
and three lines in PHX
. Instead of having an aircraft out of service for two days, the checks have now been broken down into more manageable work packages (called C1, C2
, C4). The reason for this is, as the 2/3/5 series aircraft got older, more things were being added to the 'C' checks and it was no longer practical to keep the aircraft out of service for that period of time. These smaller checks, done within a certain span of time, are the equivalent of a "full" C check, but each can be done overnight without removing the aircraft from service. A similar program is in place for the -700's as well. So it is possible that a plane in PHX
might be getting a C4 check, while a plane in DAL
is getting a C2
check and a plane in HOU
is getting a C3
check, but our MX
procedures do not vary from station to station.
I was also told that the heavy C and D checks are done at BFGoodrich in Everett, WA. I was also told that DAL does some heavy D and C but no SI checks.
We do not farm out 'C' checks, but some 1/4D, 1/2D & "full" D checks are outsourced. There are three lines of Heavy MX
where we do 1/4D, 1/2D and 5Y
All I know about WN's MX program is from hearsay.
And that is why maybe you shouldn't throw out speculation about how we do things. More than once, you've said things that, to the untrained eye, make Southwest's MX
program look unprofessional. If you're not sure about our maintenance program, let someone else more familiar with our operations field those questions.
Patrick Bateman is my hero.