TM 1-6625-724-13&P
0075 00
0075 00-1
AVA APPLICATION AND PROCEDURES – CH-47D
(Script File No. CH47_R.CMD)
CAUTION
When routing cables, ensure that cables are secured
and tied away from rotating assemblies.
CAUTION
Do not change the tab angle that is stenciled on the
rotor blade. If the blade is replaced for any reason,
the tab must be reset to the stenciled angle. See TM
1-1520-240-23.
TASK 1 -
TEST EQUIPMENT INSTALLATION/CHECKOUT
TASK 2 -
TRACK FWD AND AFT ROTORS (ON THE GROUND)
TASK 3 -
TRACK AND BALANCE FWD AND AFT ROTORS (IN HOVER)
TASK 4 -
TRACK ROTORS (IN FORWARD FLIGHT)
TASK 5 -
MAINTENANCE TESTS (50 HOUR, FWD VIB & AFT VIB TEST)
PERSONNEL REQUIRED
Four People Required:
Pilots (2)
Flight Helicopter Repairer
Inspector
TOOLS
Aircraft Mechanic’s Toolkit, NSN 5180-00-323-4692
Trim Tab Bending Fixture 145G1019-29
Aircraft Adapter Kit (29315200)
NSN 6625-01-364-4477
*Data Acquisition Unit (DAU) (29328203)
*Control and Display Unit (CADU) (29314106)
*Universal Tracking Device (2 each) (29310700)
*Accelerometer (2 each) (28110900)
*10-ft CADU-to-DAU Cable (29325601)
15-ft CH-47 Bulkhead-to-DAU Breakout Cable
(29085700)
*Accelerometer Bracket (29313000)
*25-ft UTD Cable (29325701)
*25-ft Accelerometer Cable (29105605)
*50-ft Accelerometer Cable (29105600)
*50-ft UTD Cable (29725500)
Accelerometer Bracket (29339500)
Forward UTD Bracket (29141700)
Aft UTD Bracket (29724300)
Sun Shield (2 pieces) (29722100)
*CH-47 Aircraft Setup File (installed in CADU)
Screws (MS35308-326)
Torque Wrench 1050 to 1300 in-lb.
Crow’s Foot
AVA Basic Kit, Rotor Track & Balance
NSN 6625-01-282-3746
* Included in AVA Basic Kit
ALSO NEEDED
Balance Weights (as required)
Lockwire, MS20955NC32 (STEPS 1 and 2)
Reflective Tape (10605000)
Accelerometer Blocks (29703800 or equivalent)
Accelerometer (3 each) (28110900 or equivalent)
Tie Wraps
Cotter Pins
EQUIPMENT CONDITIONS
Electrical power off
Hydraulic power off
Tiedown lines connected to one forward and one aft
main rotor blade (task 1-26)
Forward and aft pylon work platforms open (task 2-2)
