PS Magazine - TB 43-PS-664
PS, The Preventative Maintenance Monthly
ISSUE 664
MARCH 2008
38
PS 664
MAR 08
39
PS 664
MAR 08
C
rewmembers, when eyeballing your Chinook for problems during daily and pre-
flight inspections, don’t get hasty and forget the cabin door step.
Mistreatment of any part of your bird
will damage components or a part of the
airframe. The lower cabin door step gets
lots of abuse.
Break the habit of opening the lower
cabin door and letting the door step
drop. Do the opposite. Get in the habit
of grabbing the handle and lowering the
cabin door step properly.
If you let the cabin door step fall down,
you elongate the bolt holes and break the
door hinges. You can also crack the step by
letting it free fall into place.
One more thing to remember: Break
the
habit
of
using
the
lower
cabin
door step as a spring board. So stop
jumping down on it to exit your bird. And
keep your feet off the door arms, too. Your
weight can crack them. Since the lower
cabin door step has a handle, use it!
Check the step during daily inspections.
Rotating the rotor blades is a normal task during maintenance. But make sure
you’re careful and watch out for the aft rotating beacon.
When the flight controls are in certain positions, it is possible for the vertical hinge
pin and/or the lower pin oil tank to hit the light lens. So if your bird’s flight controls
are in any position other than neutral and you turn the blades without watching, the
light lens could be damaged. That’s not good because now your bird is NMC.
Save the avionics shop a trip to your bird and the repair downtime. Keep the
aft rotating beacon out of harm’s way by making sure the flight controls are in the
neutral position to spare the light.
CH-47D…
Handle
Lower
Cabin
Door
Step
CH-47D…
AS THE
BLADES TURN
Do not jump
on door step
hey!
I’m
not
a spring
board!
mechanics, when
performing chinook
maintenance on the
aft rotor head, it’s
easy to forget the
small things.
let’s get
ready to
rotate the
blades!
hey,
I’d better
make sure the
flight controls
are in neutral,
first!
Protect rotating beacon from…
…vertical hinge pin or lower tank
664.38-39.indd
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2/7/08
10:01:36 AM
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