Robinson R66 - Page 52

5-41 Ground Check (continued)
7. Lighting, Instruments, and Audio Alerts (continued): (Turn battery switch on.)
INTERIOR LIGHTING
a.
Panel lighting & dimmer control – check function (position lights
must be illuminated to enable panel lighting and dimmer control).
b. Map light – check function.
c. Digital voltmeter – indicates approximately 24 volts.
d. Oil temperature gage – slight needle deflection with engine cold.
e. Fuel quantity gage – indication of fuel level.
AUDIO ALERTS (Later helicopters; verify tone in headset)
a.
High rotor RPM: a high/low "warble" tone will sound when test
button is depressed (five times per second).
b.
High engine torque/MGT: a beeping tone will sound when test
button is depressed (four beeps per second for two seconds
followed by 12 beeps per second).
(Turn battery switch off.)
8. Aircraft Documents:
(Additional documents may be required in countries other than the US.)
a.
Inspect condition and verify R66 MT699-1 laminated pilot's
checklist is current revision. Check revision status online at:
www.robinsonheli.com.
b.
Inspect condition and verify R66 Pilot’s Operating Handbook
is current revision and contains correct Equipment List/Weight
& Balance Data. Check revision status online at: www.
robinsonheli.com.
c. Verify airworthiness certificate onboard & matches helicopter S/N.
d.
Verify registration certificate onboard & matches helicopter S/N
and all registration markings.
Page 5.9A Chapter 5 Inspections JUL 2020