\ SCAN THE EXTERIOR
 SKIN. BE SURE THERE aRi
 NO PUNCTURES AND SE
 IF THE 6TEPS ARE IN
 SHAPE .

 All the access plates in
 place? Drains should be
 clean as a hound's tooth.
 Don't forget the static
 port. These tiny holes can
 get plugged real easy and
 When this happens the air
 speed, altimeter, rate-of-
 climb and TAT-102A
 compensating system will
 be out of'whack.
 HERE


 O


 OO








 The HueyCobra has the same 540 door hinge-type rotor as the UH-1C Model
-with one exception.
 The pitch horns are altered to permit direct connection between the swash-
plate and the rotor ... simplifies the control system. You'll find the repair limits
in Chap 8 of TM 55-1520-221-20 (13 Nov 67).
 Mount your charge and focus on the hub, blade grips, pitch horns, drag
braces -and sand deflector. Look for
visible cracks and check for tightness.
 Any obvious scratches, nicks, dents,
erosion of the leading edge or bond
failures bear further looking into.