MOONEY
M20TN - MODEL TYPE-S
SECTION VII
AIRPLANE AND SYSTEM DESCRIPTION
7 -- 14
AIRPLANE FLIGHT MANUAL
ORIGINAL ISSUE -- 04-02-2008
4. GEAR SAFETY INDICATOR (GEAR UNSAFE)
A GEAR DOWN light (GREEN), a GEAR UNSAFE light (RED), and a gear warning VOICE AL-
ERT provide visual and audible gear position signals. The green (GEAR DOWN) light shows
continuously when gear is fully extended. With navigation lights ON, the GEAR DOWN light is
dimmed for night operation. All gear lights are OUT when landing gear is fully retracted. Addition-
al verification is accomplished by checking floor board indicator window.
5. LEFT FUEL
6. RIGHT FUEL
Left and/or right, fuel annunciator light (RED) comes on when there is 6 to 8 gallons (23 to 30.3
liters) of usable fuel remaining in the respective tank.
7. SPEED BRAKE
Illuminates AMBER when speed brakes are extended.
8. ALT AIR
Illuminates AMBER when the alternate air door is opened, either manually or automatically. In
this situation, induction air for the engine is drawn from inside cowling rather than through the
induction air intake. The normal induction air system MUST be checked, for proper operation,
prior to next flight.
NOTE:
Induction of alternate air (warm air) will result in loss of power.
9. PROP DE--ICE
Illuminates BLUE when Propeller De--Ice has been selected ON.
10. PITOT HEAT
Illuminates BLUE when pilot has selected PITOT HEAT rocker switch ON. Some exported and
TKS equipped aircraft will illuminate AMBER only when there is any type of electrical failure in
the pitot heat system. It will not illuminate when switch is OFF and will not illuminate when switch
is ON and current is flowing through pitot heater.
11. SPARE
12. ALT VOLTS
A RED light indicates improper voltage supply. A FLASHING RED light indicates alternator volt-
age output is below load requirements or no voltage from alternator; a STEADY RED light indi-
cates over voltage or tripped voltage relay.
13. SPARE
14. START POWER
Illuminates RED when the starter switch is engaged or relay has malfunctioned and the starter is
engaged while the engine is running. Shut the engine off as soon as practicable.
15. SPARE
16. SPARE
Revision B -- 11-21-2014