CSP−HMI−2
MD Helicopters, Inc
.
MAINTENANCE MANUAL
Page 602
Revision 39
64−25−30
leading edge and area around the pin
near the outboard edge of blade.
(a). Nicks and abrasion pits that are less
than 0.040 inch (1.016 mm) deep and
0.25 inch (6.35 mm) in diameter may
be blended out. (No more than two
such repairs can be made per blade.)
(b). Nicks, scratches and abrasion pits
less than 0.020 inch (0.508 mm) and
1.5 inch (3.81 cm) long may be
blended out. (Total length of all
repairs not to exceed 2.0 inch (5.08
cm).)
(2). Any bulges or blisters over 0.10 inch
(2.54 mm) long in area of pin near
outboard end of blade are reason for
blade rejection.
(3). Seal cracks up to 0.10 inch (2.54 mm),
coming from area of pin with sealing
compound (CM437).
(4). If any cracks larger than 0.10 inch (2.54
mm) are found, replace blade.
5. Fan Pitch Slider Inspection
(1). Inspect slider for dents, scratches,
nicks, gouges and corrosion, none
allowed.
(2). Inspect Karon coating on slider for
condition.
(3). Measure across slider, minimum
diameter is 0.805 in. (20.447 mm).
