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TM 55-1510-218-MTF
TROUBLESHOOTING
PROCEDURE
REFERENCE
LOW SPEED SYSTEMS CHECK (CONT)
*(3) Flap retraction time -
Check and record. Flaps
should retract from full
down to full up in a maxi-
mum of 9 seconds.
(4) Airspeed - 143 KIAS (C-
12C), 154 KIAS (C-12D).
or 157 KIAS (C-12F).
(5) Flaps - Down (100%).
*(6) Flap extension time -
Check and record. Flaps
should extend from full up
to full down within 13 sec-
onds.
*6. Minimum elevator trim - Check as
follows:
a. Power - Idle.
b. Gear - DN.
c. Flaps - Down (100%).
e. Elevator trim control wheel -
Set full nose-up trim.
*f. Record airspeed (must be be-
tween 82 and 92 KIAS).
7. Flaps - UP.
8. Gear - UP.
*9. Autoignition - Check as follows:
a. Autoignition switches (2) -
ARM.
b. Slowly retard each power Iever.
2-60
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