TM 1-1520-240-MTF
2-61
* B TAXIING (CONT.)
c. Check PWR STEER caution light — Out.
(1) Check 10 degree deviation (maximum)
in 100 feet.
(2) SWIVEL switch — LOCK, Check 5
degree deviation (maximum in 100 feet.
(3) Check power STEERING CONTROL
inoperative with SWIVEL at LOCK.
B BEFORE HOVER
1-17.
B* 1. Swivel switch — Lock.
B* 2. AFCS System control panel — Set as follows:
a. AFCS System SEL switch — Both.
b. Cyclic Trim — Auto.
B 3. 714A FADEC system Check.
a. FADEC RRPM Check.
(1) FADEC NR% switch — 97. Check
RRPM decreases to 97% " 1% with
torques matched within 4%.
(2) FADEC NR% switch — 103. Check
RRPM increases to 103% " 1% with
torques matched within 4%.
(3) FADEC NR% switch — 100. Check
RRPM decreases to 100% " 1% with
torques matched within 4%.
b. FADEC Reversionary Mode Beep Check.
(1) ENG No. 2 ECL — GND.
(2) FADEC No. 1 PRI/REV switch — REV.
(3) Thrust Control Lever — Increase to
obtain 90% N1
