C172S Emergency Checklists

Question 1

Engine Fire on Ground

Answer 1

Starter: Continue
Fuel Shut-Off: Off
Mixture: Idle/Cutoff
Throttle: Full
Aux Fuel Pump: Off
Standby Battery: Off
Master Switch: Off
Ignition Switch: Off
Parking Brake: Release
Fire Extinguisher: Obtain
Evacuate: Proceed

Question 2

Engine Fire in Flight

Answer 2

Mixture: Idle/Cutoff
Fuel Shut-Off: Off
Aux Fuel Pump: Off
Standby Battery: Off
Master Switch: Off
Cabin Air/Heat: Off
Airspeed: Increase
Forced Landing: Execute

Question 3

Electrical Fire in Flight

Answer 3

Standby Battery: Off
Master Switch: Off
Cabin Air/Heat: Off
Fire Extinguisher: Discharge
Avionics Master: Off
All Switches: Off

If Required to Land
Master Switch: On
Circuit Breakers: Check In
Avionics Master: On
Radio/Electronics Switch: As required

Question 4

Engine Fail in Flight:

Answer 4

Airspeed Vg = 68
Flaps: Up
Landing Site: Select
Fuel Selector: Both
Fuel Shut-Off: On
Mixture: Full Rich
Aux Fuel Pump: On
Ignition Switch: Start

Resart

Airspeed Vg = 68
Fuel Selector: Both
Fuel Shut-Off: On
Mixture: Idle Cut-Off
Throttle: Full In
Aux Fuel Pump: Off
Ignition Switch: Start

No Start
Transponder: 7700
Radio: Mayday

Question 5

Engine Fail Forced Landing

Answer 5

Seatbelts: Secured
Seat backs: Upright
Fuel Shut-Off: Off
Mixture: Idle Cut-Off
Flaps: 30
Ignition Switch: Off
Stand-By Battery: Off
Master Switch: Off (Landing Assured)
Cabin Doors: Unlatch
Touchdown: Tail Low
Brakes: Apply Heavily

Question 6

Cabin Fire

Answer 6

Stand-By Battery Switch: Off
Master Switch: Off
Cabin Vents, Cabin Air/Heat
Fire Extinguisher: Discharge

IF Fire Extinguisher is used open vents/windows immediately
Land as soon as possible

Question 7

Wing Fire

Answer 7

Landing/Taxi Lights: Off
Navigation Lights: Off
Strobe Lights: Off
Pitot Heat: Off

Perform a forward slip to keep flames away from fuel tank and cabin.

Question 8

Static Source Blockage

Answer 8

Alternate Static Source: On
Cabin Heat/Cabin Air: On
Vents: Closed
Airspeed: POH Calibration Table, Section 5

Question 9

Emergency Descent

Answer 9

Throttle: Idle
Bank Angle: Max 45 Degrees
Control Wheel: Forward
Airspeed: <120 KIAS in Smooth Air, <Va in Rough Air
Shallow S-Turns: Perform

Recover when required (1500 ft AGL in training)

Question 10

Spin Recovery (PARE)

Answer 10

Throttle: Idle
Ailerons: Neutral
Rudder: Opposite Direction of Spin
Elevator: Full Forward

Question 11

L or R Vacuum Annunciator

Answer 11

Vacuum Indicator (VAC): Check
If VAC is out of range stand-by instruments may not work

Question 12

Elec System - OVERVOLT
M BUS Volts > 32 or M BAT Amps > 40

Answer 12

Alternator Switch: Off
Electric Load: Reduce
Avionics Switch (BUS 1): Off
Pitot Heat: Off
Lights: Off
Cabin Power 12V: Off
Com 1 Mic and Nav 1: Tune and Select
Avionics Switch (BUS 2) Off (Keep ON if flying in clouds)
Land: As soon as possible

When main Battery drops to 20 V it will fail. The Stand-By Battery will provide power for 30 minutes once active.

Question 13

Elec System - UNDERVOLT (with RPM high)

Answer 13

Alternator Switch: Off
Alternator Circuit Breaker: Check/Reset
Master Switch (ALT/BAT): On
Low Voltage Annunciator: Verify Off
M BUS Volts: Verify 27.5V minimum
M BAT Amps: Verify Charging

If VOLTS illuminates again:
Alternator Switch: Off
Electrical Load: Reduce
Avionics Switch BUS 1: OFF
Pitot Heat: Off
Lights: Off
Cabin PWR 12V: Off
COM 1 and NAV 1: Tune/Select
Avionics Switch BUS 2: OFF
Land: As soon as possible

Note: Main battery will fail at 20V. Stand-by battery will provide power to limited equipment for 30 minutes.