TM 1-1520-238-T-7
11–432
Change 5
11–131. STAB POS NOT AT 2 2 NU FOR 165 KNOTS AND COLLECTIVE CENTERED
11–131
Tools:
Nomenclature
Part Number
Tool Kit, Electrical
SC518099CLA06
Repairer’s
Multimeter, Digital
AN/PSM-45
Personnel Required:
68X
Armament/Electrical Systems Repairer
One person to assist
References:
TM 1-1520-238-23
WARNING
Turn off power before detaching or
attaching wires and connectors. High
current 28 VDC or 115 VAC is present.
Failure to do so could result in death or
serious injury.
1. Detach:
P986 from (A637)J2,
P990 from (A638)J2.
Check for 12.4 .30 VDC between
P986–D(HI) and P986–E(LO).
Is voltage present?
YES
Go to step 2.
NO
Replace AIRSPEED
TRANSDUCER 1 (MT17)
(TM 1-1520-238-23).
2. Check for 12.4 .30 VDC between
P990–D(HI) and P990–E(LO).
Is voltage present?
YES
Replace STAB CONT UNIT 1
(A637), or
STAB CONT UNIT 2 (A638)
(TM 1-1520-238-23).
NO
Replace AIRSPEED
TRANSDUCER 2 (MT18)
(TM 1-1520-238-23).
END OF TASK
