Cessna 421 Flashcards
Oxygen yellow arc
0 - 300 psi
Oxygen green arc
1500 - 1850 psi
Oxygen red line
2000 psi
Oxygen bottle size
11.0 cubic feet
Vacuum range
4.75” - 5.25”
Cabin pressurization limit
5.0 psi normal; 5.3 psi max
Gear Warning Horn
- < 15” MP
- > 15 degrees
- UP selected on ground
“LOW VOLT”
< 25 Volts
“CABIN ALT”
> 10,000 ft
“L or R FUEL LOW”
60 lbs (10 gals) of fuel remaining
Landing gear hydraulic pressure
1750 psi
Alternators
28 volts; 100 amps
Battery
24 volts; 26 amps
Voltammeter
L or R ALT = Load in amps
BATT = Discharge or Charge in amps
VOLTS = Batt bus voltage
Cabin Doorway and Instrument panel floodlights
15 minute timer
Heater overheat
325 degrees F
De-ice boots timer
6 secs tail; 6 secs wing; 45 secs total
Windshield Anti-ice
High = < -12C Low = -12C to 4.4C
Battery Relay
17 volts to close; 8 volts to keep closed
Overvoltage relay
Tripped at 32 V
Prop Anti-Ice Timer
20 Seconds each
- RH outboard
- RH inboard
- LH outboard
- LH inboard
Minimum Altitudes for Autopilot
Alt Select = 800’ AGL
Approach = 200’AGL
Maximum altitude loss approach = 100’
Autopilot max airspeed and flaps
230 KIAS and 30 degrees
Alternator out
Restrict load to 80% of rated load
Engine securing
- Throttle - Close
- Mixture - ICO
- Prop - Feather
Engine Failure during takeoff
Less than 100 KIAS or gear down
- Throttles - Close
2. Brake - As Required
Engine Failure during takeoff
Above 100 KIAS and gear up (or transit)
- Mixtures - Forward
- Props - Forward
- Throttles - Forward
- Gear - UP
- Inoperative Engine
a. Throttle - Close
b. Mixture - ICO
c. Propeller - FX
Sudden Engine Roughness
- Power - Reduce immediately (both engines)
a. MP - 32.5” max
b. RPM - 1800 max - Prop Sync - Off
- Rough Engine - Determine
- Problem - Analyze
- Rough Engine - Secure if cannot clear roughness
Engine Failure During Flight
> VMC
- Inop Engine - Determine
- Operative Engine - Adjust as required
- Fuel Flow - Check (Aux pump HI)
- Fuel Selectors - Main
- Fuel Quantity - Check
- Oil Pressure and Oil Temp - Check
- Magnetos - ON
- Mixture - Adjust
Engine Failure During Flight
< VMC
- Rudder - Apply towards operative engine
- Power - Reduce to stop turn
- Pitch - Lower to accelerate above VMCA
- Inoperative Engine - FX Prop
- Operative Engine - Increase power
Single Engine Go-Around
Speed > 111 KIAS
- Throttle - Full Forward
- Flaps - UP
- Gear - UP at Positive Rate
- Pitch at VYSE - 111 KIAS
- Trim - Adjust if needed
Both Engines Failure During Cruise
- Flaps - UP
- Gear - UP
- Props - FX
Engine Fire on the Ground
- Throttles - Close
- Brakes - As required
- Mixtures - ICO
- Battery - OFF (gang bar)
- Magnetos - OFF (gang bar)
Engine or Wing Fire in Flight
- Aux Fuel Pumps - Both OFF
- Fuel Selector - MAIN (operative engine)
- Emergency Crossfeed Shutoff - Pull
- Secure appropriate engine
a. Throttle - Close
b. Mixture - ICO
c. Prop - FX
d. Fuel selector - OFF - Open guard and push FIRE LIGHT
Cabin Electrical Fire or Smoke
- Electrical Load - Reduce
- Fuel Selectors - MAIN
- Emergency Crossfeed Shutoff - Pull
- Attempt to isolate source of fire or smoke
- Cabin Air Controls
a. OPEN - All Vents
b. CLOSE - If smoke increased - Pressurization Air Contamination Procedure - Initiate
Pressurization Air Contamination Procedure
- Pressurization Air Control(s) - Pull as necessary
Emergency Descent
Smooth Air; Preferred
- Throttles - Idle
- Props - FWD
- Mixtures - Adjust
- Flaps - UP
- Gear - UP
- Spoilers - Deploy
- Moderate Bank - Initiate
- Airspeed - 240 KIAS