PS Magazine - TB 43-PS-581

PS, The Preventative Maintenance Monthly

ISSUE 581

APRIL 2001
PS Magazine - TB 43-PS-581 - Page 19 of 32
APR 01
35
CH-47D…
Gary Grubbs
Dallas Army Aviation
Support Facility
Grand Prairie, TX
Good idea! That clips the
retaining clip problem.
Dear Editor,
We’ve had a constant problem
with the Chinook engine cowling door
retaining clip. Aircraft vibration and
constant storage and removal of the
strut enlarges the clip’s hole to the
point that the strut just falls out of
the clip on its own.
Removing
and
installing
enlarges
hole
But a 10-minute fix by our sheet
metal repairer helped us solve the clip
problem and prolong the life of the
strut assembly. Here’s how it’s done:
1.
With a drill index, mark a 31/64-
in diameter hole around the existing
hole.
Enlarge the hole with a rotary
file to the marks.
2.
Drill a 25/64-in hole in an eye-
using a vise and drill press.
3.
Insert the eyelet into the
retaining clip and add a retaining
ring, NSN 5325-00-598-1474.
That holds the strut in place.
When the strut falls out, it rubs
against the top of the engine, the
main fuel filter housing and the fuel
line. Over time, that could cause a
fuel leak and fire. The strut can
also bend until it won’t hold the
cowling door open.
581. 34-35 (C)
3/12/01
12:02 AM
Page 1
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