GRUMMAN AMERICAN
FOR TRAINING USE ONLY – SECTION 10
MODEL GA-7/COUGAR
SAFETY INFORMATION
10-17
Issued: April 10, 1978
CAUTION
IF THE LEFT ALTERNATOR IS OPERATING PROPERLY AND THE RIGHT ENGINE
WILL NOT START USING THE AIRPLANE POWER, REMOVE THE BATTERY FROM
THE AIRPLANE AND SERVICE OR REPLACE BEFORE FURTHER FLIGHT.
Using the Airplane Power procedure above, start the right engine.
NOTE
Starting one engine with airplane power will ensure that the battery system is
charged and operating. If it is necessary due to extreme cold conditions, use
External Power procedure to start both engines. Allow sufficient time for
warm-up, then shut down right engine only. Restart right engine using Airplane
Power procedure.
BEFORE TAXI
Radios/Transponder – ON/STANDBY.
Altimeters/Gyros/Clock – SET.
Autopilot – CHECKED/OFF.
Electric Trim – CHECKED/SET.
Exterior Lights – AS REQUIRED.
Park Brake – RELEASED.
TAXIING
Brakes – CHECKED.
Flight Instruments – CHECKED.
ENGINE RUN UP
Nose Wheel – CENTERED.
Parking Brake – SET.
Magneto Groundout – With engine at idle, turn OFF mags, check that engine ceases firing, turn mags ON.
Engine Instruments – CHECKED.
At 2200 RPM
Propellers – EXERCISE (Normal RPM drop 150 to 250).
At 1800 RPM
Magnetos – CHECK (Maximum RPM drop 175 and 50 RPM differential).
Alternators – CHECK.
Carburetor Heat – ON, Check for RPM drop, then set to OFF.
Instrument Air Pressure Gauge – CHECK, 4.3 to 6.1 in Hg.
At 1500 RPM
Propeller Feathering – CHECK (Place propeller levers in feather, then low pitch allowing no more than 500
RPM drop).
Throttles – 800 to 1200 RPM.
Flaps – CHECK.