comanche checklist

8/18/2019 Comanche Checklist

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COMANCHE N84VK

CHECK LISTPre-Flight ..................................................................................................3

C OCKPIT ……………………………………………………………………...3R IGHT W ING ...................................................................................................3N OSE ……………………………………………………………………...4L EFT W ING ......................................................................................................4E MPENNAGE ....................................................................................................4

Starting and Taxi.......................................................................................5 B EFORE E NGINE S TART ...................................................................................5E NGINE S TART .................................................................................................6B EFORE T AXI ...................................................................................................7

Run Up …………………………………………………………………………8 P OWER C HECKS ..............................................................................................8

Vital Actions ..............................................................................................9 B EFORE T AKEOFF ...........................................................................................9

Takeoff, Climb Out, Cruise......................................................................10 N ORMAL T AKEOFF ........................................................................................10S HORT F IELD .................................................................................................10S OFT F IELD ....................................................................................................10C LIMB …………………………………………………………………….10C RUISE …………………………………………………………………….10

Approach and Landing............................................................................11 B EFORE L ANDING ..........................................................................................11

5 Miles out ...............................................................................................11 Down Wind ..............................................................................................11

N ORMAL L ANDING ........................................................................................11 Base …………………………………………………………………………11 Final …………………………………………………………………………11


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Piper Comanche N84VK

Page 2 of 22This checklis t must not be taken as author itative. It should only be used to

supplement the pilot ’s operating handbook. The author CANNOT

be held responsible for any inaccuracies herein

S HORT F IELD L ANDING .................................................................................11A FTER L ANDING ............................................................................................12E NGINE S HUTDOWN .......................................................................................12

Emergencies ...........................................................................................13 G EAR F AILURE ..............................................................................................13E NGINE F AILURE ...........................................................................................13P OWER OFF L ANDING ....................................................................................13E NGINE F IRE .................................................................................................14E LECTRICAL F IRE .........................................................................................14

Airspeeds................................................................................................15 Power Table Lycoming 540A ..................................................................16 Light Signals & Quadrantal Rule.............................................................17

Marshalling Signals.................................................................................18 S-Tec System 50 Pre-Flight Procedures.................................................18 S-Tec System 50 Pre-Flight Procedures.................................................19

R ADIO C HECK ...............................................................................................19

Microflo Test and Pre-Flight Procedures.................................................20 PREFLIGHT & DIAGNOSTIC CHECK ..................................................20

NO FUEL ADDED ............................................................................21 SET FULL FUEL TANKS .................................................................21

PARTIAL FUEL ADDED .................................................................21

CORRECTING FUEL ON BOARD ENTRY ERROR ......................21

Morse Alphabet.......................................................................................22 Fuel System............................................................................................22


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3. Documents – Cert. of Registration, Cert. of Airworthiness,Insurance, Radio License, Intercept rules, VAT Cert.

Pre-Flight 1 of 2

Cockpit1. Maintenance Records - Check and Complete2. Weather, NOTAMS, Performance, W&B – Check

4. Control Wheel Lock – Remove5. Ignition Switch / Key - Verify OFF / OUT 6. Avionics / Electrical Switches – OFF

7. Gear Switch - DOWN 8. Flaps – Fully Down9. Trim - Set for Takeoff10. Master Switch – ON 11. Lights - OFF / Check (Night)12. Fuel Gauges – Check Tips and Main13. Beacon & Strobe / Nav / Pitot / Landing lights – ON 14. Right Wing Nav Light – Check

15. Right Landing Light – Check16. Left Stall Warning – Check17. Pitot – Remove Cover – Check Heat18. Left Landing Light – Check19. Left Wing Nav light – Check20. Beacon, Strobe and Rear Nav – Check21. Beacon & Strobe / Nav / Pitot / Landing / Master – OFF

Right Wing1. Flap / Aileron – Check2. Tip Tank - Dip - Cap Secure3. Leading Edge – Check4. Tie Down – Remove5. Wing Fuel Tank - Dip - Cap Secure6. Fuel Tank Vents – Check7. Main Gear, Tyre, Brake – Check 42 psi – 2 3/4” Inflation8. Fuel Sump – Select each tank in turn - Drain & Check9. Cabin Air Intake – Secure


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Pre-Flight 2 of 2

Nose1. Windshield & Cowling – Check2. Right Engine Compartment - Check Fuel/Oil leaks3. Propeller / Spinner / Piston – Check4. Induction - Not Obstructed5. Nose Gear Tyre – Check 27 psi - Inflation 2 3/4”6. Oil – 9 to 10 Quarts7. Left Engine Compartment - Check Fuel/Oil leaks

8. Brake Fluid – Check Level9. Chocks - Remove

Left Wing1. Cabin Air Intake – Secure2. Main Gear, Tyre, Brake – Check 42 psi – 2 3/4” Inflation3. Fuel Tank Vents – Check4. Wing Fuel Tank - Dip - Cap Secure

5. Leading Edge – Check6. Pitot Tube – Clear7. Tie Down – Remove8. Tip Tank - Dip - Cap Secure9. Flap / Aileron – Check

Empennage1. Rivets / Skin / Antennas – Check

2. Left Static - Clear3. Elevator – Check4. Rudder – Check5. Trim (Servo) – Check6. Right Static - Clear7. Baggage Door – Secure8. Walk round – Final


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Starting and Taxi 1 of 3

Before Engine Start1. Pre-flight Complete2. Passengers – Briefed3. Seats, Harnesses, Hatches – SECURE 4. All Electrical Switches – OFF 5. Heater, Air Vents – CLOSED 6. Controls – Full free movement, correct sense

7. Trims – Exercise set to neutral8. Flaps – Symmetrical retraction9. Instruments

a. Glasses unbroken function checkb. Manifold Pressure approximately QFEc. CHT approximately OAT

10. Circuit Breakers – ALL IN 11. Fuel Selector – Lowest MAIN Tank

12. Brakes - Test and Apply13. Gear Switch - Down 14. Com 2, Auto - Select15. Ground Clearance Switch – ON

a. ATIS, Start & Radio Check – OFF


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Engine Start1. Master Switch – ON 2. Key – IN 3. Magnetos – OFF 4. Gear Lights – GREEN 5. Pre Oil – ON - Check pressure – OFF 6. Fuel Pump – ON - Check pressure – OFF 7. Beacon & Strobe – ON 8. Magnetos – BOTH 9. Throttle – Full and free movement set to ½” open 10. Propeller - Full and free movement set to MAX RPM 11. Mixture - Full and free movement set to RICH 12. Carburettor Heat – Full & Free - OFF 13. Primer

a. Cold – 5 - 7 and LOCK

b. Hot – Exercise throttle only14. Propeller Area- Check “ Clear! ”15. Ignition Switch – Engage

a. (Release if compression holds prop, then re-engage)

16. Throttle - Adjust 1100 RPM 17. Starter – Disengaged 18. Oil Pressure – Check

19. Suction - > 4”20. Fuel Pressure – Check21. Alternator – Positive charge22. Voltage High /Low – Check


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Before Taxi 1. Avionics Master – ON 2. Turn Coordinator - ON 3. Check 530 test reading with HSI4. Fuel Gauges –

a. Set to Tips – Check against Dipb. Set to Mains – Check against Dip

5. Set SHADIN if fuel has been uplifted – Check Dip6. Radios - On and Set7. Auto Pilot

a. Set to TEST on panel – All lights cycle (1-2 mins)b. Set to ON on panel – RDY light on S-Tec remains onc. Press ON/OFF on S-Tec – STB showsd. Rotate turn knob – Control column turns respectivelye. Centre turn knob

f. Set HSI with HDG bug under lubber lineg. Push turn knob – HDG showsh. Rotate HDG bug – Control column turns respectivelyi. Set Auto Pilot – OFF on S-Tec

8. Mixture – Lean for taxi 9. Clearances – Radio Check & Taxi - Com 210. Transponder – Standby11. Landing Lights as Necessary12. Navigation Lights and Interior Lights as Desired13. Brakes - Test on Initial Roll14. Rudder / Nose wheel – Check deflection correct sense15. Flight Instruments Turn Left - Slip Right, Steady Erect,

Heading Decreasing – Visa Versa


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Run Up

Power Checks1. Aircraft Position – Into Wind2. Brakes - Apply and Hold3. Throttle – Set 1100 RPM4. Fuel Selector

a. ONLY IF TIP TANKS ARE NOT EMPTY i. Select LH Tip ONLY – Check Flowii. Select RH Tip ONLY – Check Flow

b. IF TIP TANKS ARE EMPTYi. Select RH Main ONLY – Check Flowii. Select LH Main ONLY – Check Flow

c. Select fullest MAIN TANK ONLY 5. T’s and P’s - In Green6. Magnetos – Check Right - Both - Left – BOTH 7. Brakes - Cover

8. Throttle (Clear Behind) – Set 1700 RPM9. Suction - 5" +/- 1”10. Carburettor Heat – On - Check RPM Drop and Carburettor

temp rising – Select OFF 11. Propeller – Check Oil Temp Green Cycle 3 times

a. Max 350 RPM drop - Oil Pressure fluctuates12. Ammeter – Charging13. Magnetos - Check Right - Both - Left – BOTH

a. Max. Drop 125 RPM, Max. Diff 50 RPM14. Slow Running – 600 to 800 RPM15. Throttle – Reset 1100 RPM16. Circuits Breakers – Check all in


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Vital Actions

Before Takeoff1. Window, Harnesses, Hatches – Secure2. Flight Instruments Gyros – Set3. Trims – Elevator and Rudder set for takeoff4. Primer – LOCKED 5. Carburettor Heat – OFF 6. Mixture – RICH 7. Propeller – MAX RPM 8. Magnetos - BOTH 9. Pitot Heat - As Desired10. Beacon & Strobe – ON 11. Fuel Pump - ON 12. Flaps – 9° Set13. Fuel Selector – MAIN tank (NO TIP TANK SELECTED)! 14. Floor check – Unobstructed gear lever travel

15. Auto Pilot – DISCONNECTED 16. Flight Controls - Full free movement, correct sense17. Radios Set, Com 1 / Takeoff Clearance18. Transponder - On Altitude19. Note Time Off20. Brakes – Release


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Takeoff, Climb Out, Cruise

Normal Takeoff1. Flaps - 9°2. Brakes – Release3. Full Throttle – Slow increase

a. Manifold Pressure reads QFE less 1” to 2”4. Rotate at - 65 MPH5. Touch Brakes / Gear Up then Flaps Up at 500ft Pos Rate6. MP 24” - RPM 2400 – Lean Mixture 60 Ltrs/Hr – Cyl Temp7. Climb Speed – 100 MPH

Short Field1. Flaps - 9°2. Brakes - Apply & Hold, Full Throttle3. Brakes – Release4. Pull Back @ 65 MPH5. Gear Up6. Climb Speed – 81 MPH

7. Flaps - Retract, Slowly accelerate to 95 MPHSoft Field1. Flaps - 9°2. Full back elevator pressure3. Slowly Increase to Full Throttle4. Lift Nose as soon as possible5. Accelerate in ground effect6. Gear Up / Flaps Up

7. Climb Speed – 95 MPHClimb1. Normal - 24”MP, 2400 RPM, 60 LPH2. Best Cooling - Full Throttle, 2500 RPM, and Mixture Rich3. Electric Fuel Pump - OFF at 1000 feet AGL - Check Pressure4. Best Rate – 95 MPH5. Best Angle – 81 MPH6. En route – 130 MPH

Cruise1. Power - Set to power table and Lean Mixture

a. 22”, 2250 RPM, 45 LPH @ 3000 feet2. Landing Light - OFF


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Approach and LandingBefore Landing

5 Miles out1. 18” MP, 2400 RPM, 110 MPH2. Fuel Selector - Fullest MAIN TankDown Wind1. 18” MP, 2400 RPM2. Harnesses Hatches – SECURE 3. Electric Fuel Pump – ON 4. Fuel Selector - Fullest MAIN Tank5. Mixture – RICH 6. Carburettor Heat – ON - RPM drop/Heat rise - OFF 7. Landing Lights - ON 8. Gear Down Below 150 MPH (125 MPH Rec.)9. BUMFICH Check

Normal LandingBase

1. 90 MPH2. Flaps 18°3. 12” to 15” MPFinal4. Carburettor Heat - ON 5. Flaps 27°6. 85 - 90 MPH7. Gear Mirror – GEAR DOWN

8. Gear lever – FULL VERTICAL 9. Gear light – GREEN GREEN 10. Propeller – MAX RPM BLUE 11. Mixture – RICH RED 12. Carburettor Heat – OFF OFF

Short Field Landing1. Extend Downwind by 4-5 Seconds

2. Reduce Approach Speeds to 85 MPH, Add 2” MP


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EmergenciesGear Failure

1. Gear Switch Down2. Check Bulbs3. Check Circuit Breaker4. Master Switch On5. Turn Panel Lights off6. Manual Gear Extension

a. Lift cover off Manual Gear Extension box on floorb. Follow the checklist on the back of the platec. Airspeed below 100 MPHd. Disengage electric motor -e. Push release arm forwardf. Extend emergency handle to full lengthg. Push Handle full forwardh. Do not operate gear after manual operation

Engine Failure

1. Pitch / Trim for Best Glide - 90 / 105 MPH2. Fuel Pump - ON 3. Switch Fuel Tanks4. Magnetos - BOTH 5. Carburettor Heat - ON 6. Mixture - RICH 7. Prop - Full Forward

Power off Landing If Engine will not restart8. Select Landing Location9. Prop - Full Back to extend glide10. Gear Down? - Will take 7 seconds to extend.11. Normal Radio Procedure12. (Squawk 7700 , Mayday on 121.5 )13. Normal Shutdown, Fuel Pump - OFF Mixture - OFF

14. Fuel Selector - OFF Magnetos - OFF 15. Before Landing Seat belts tight Door Open16. Master switch - OFF


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Emergencies

Engine Fire1. Firewall Air Vents (Heat, Defroster) - CLOSED 2. Mixture - ICO 3. Fuel Selector - OFF 4. Throttle - IDLE 5. Electric Fuel Pump - OFF 6. Descend rapidly (do not exceed V NE)7. Prepare for power off landing

Electr ical Fire1. Master Switch - OFF 2. Cabin Vents - OPEN 3. Verify source of smoke out4. Leave any tripped breakers off5. Restore Electrical items one at a time6. Land as soon as possible.


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Airspeeds

Ai rspeedsBest Glide 90 MPH (Endurance)

Best Glide 105 MPH (Range)

VS0 (Stall Flaps/Gear out) 64 MPH

VS (Stall – Clean) 70 MPH

VX (Best angle Climb) 81 MPH (Gear/Flaps Up)

VY (Best rate Climb) 95 MPH (Gear/Flaps Up)

V A (Manoeuvring Speed) 154 MPH @ Gross 3000 lbs

VFE (Maximum flap extension) 125 MPH (Rec. 100 MPH)

VLE (Maximum gear extension) 150 MPH (Rec. 125 MPH

VLO (Maximum gear operating 150 MPH (Rec. 125 MPH

VNE

(Never exceed speed) 202 MPH

VNO (Normal operating speed 160 MPH

PA-24-250

Pounds Approach Speed MPH Approach Speed MPH(0 FLAPS) (FULL FLAPS) Aircraft

Weight Vs 1.3 Vs 1.4 Vs Vso 1.3 Vso 1.4 Vso

2000 57 74 80 53 69 742100 59 76 82 54 71 762200 60 78 84 56 72 782300 61 80 86 57 74 802400 63 82 88 58 76 822500 64 83 90 59 77 832600 65 85 91 61 79 85

2700 67 87 93 62 80 862800 68 88 95 63 82 882900 69 90 97 64 83 90


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Power Table Lycoming 540A


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Light Signals & Quadrantal Rule

Light Signal In Flight On Aerodrome

STEADY GREEN Authorised to landif pilot satisfied nocollision risk exists

Authorised totake-off if pilotsatisfied nocollision exists

STEADY RED Give way to otheraircraft andcontinue circling

Stop

GREEN FLASHES Return, wait forpermission to land

Authorised to taxiIF pilot satisfiedno risk exists

RED FLASHES- Do not land,- Aerodrome

not available

for landing

Taxi clear oflanding area in

use

WHITE FLASHESLand at thisaerodrome, afterreceivingcontinuous greenlight

Return to startingpoint onaerodrome

Uncontrolled Airspace Controlled AirspaceTransition Level FL245 Magnetic Track

Magnetic Track


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Marshalling Signals


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S-Tec System 50 Pre-Flight Procedures

NOTE: There must be adequate aircraft DC voltage, (14 or 28VDC), toperform these checks. Low voltage may adversely affect the

Functional Pre-flight Procedures.1. Position Avionics Master Switch ON, then position A/P Master

Switch to ON.2. Position the A/P Master Switch to Test. RDY, STB, HDG, NAV,

APR, and REV annunciators will illuminate. The lights remain onuntil positioning the Test Switch ON or OFF.

3. Position the A/P Master Switch to ON after the Turn Coordinatorhas reached its' rated RPM. Observe that the green Ready (RDY)light is on.

4. Press the ON/OFF switch; the STB light illuminates. Rotate TurnKnob left then right; observe that the control wheel movesrespectively. Centre the Turn Knob; control wheel stops.

5. Set HSI and place HDG bug under lubber line, push Turn Knob toengage HDG mode. Observe HDG annunciator illuminates. Move

HDG bug left and right; observe that the control wheel follows.6. Override Test: Grasp the control wheel; slowly override the rollservo left then right to ensure proper clutch action.

CAUTIONControl Wheel movements should be smooth. If any unusual noise or

restriction occurs, have the system inspected for proper installationand proper clutch setting, immediately. Do not operate the Autopilot

under these conditions.

Radio Check1. Tune the NAV radio to a valid VOR signal. Press and release theNAV Mode Switch the NAV lamp illuminates. Move VOR OBS sothe CDI needle moves left & right. The control wheel movesrespectively. Perform the same tests for the REV and APRmodes.

2. NOTE: In REV Mode, observe that the control wheel movesopposite of the NAV needle and with more authority than in the

NAV Mode. In APR Mode, observe that the control wheel followsthe radio needle movement and with more authority than in theNAV Mode.

3. Disconnect the A/P. Press and release the remote AP DisconnectSwitch on the control wheel.


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Microflo Test and Pre-Flight ProceduresNOTE:

Using the test function while the engine is running will cause thecomputer to lose 17 seconds of fuel count. MICROFLO-L is a fuel

flow measuring system and NOT a quantity-sensing device. A visualinspection and positive determination of the usable fuel in the fueltanks is a necessity. Therefore, it is imperative that the determined

available usable fuel be manually entered into the system.

PREFLIGHT & DIAGNOSTIC CHECK

1. Press ENTER/TEST until display shows checkerboard.2. Release ENTER/TEST - display flashes 3 times.

a. Display filled with inverse checkerboard.b. Display flashes 3 times.c. On failing test “ BAD” displayed with error code . In such

case unit is U/S. d. On passing test “ GOOD ” displayed for 3 seconds.e. K-factor setting (Pulses Per Gallon) and units of measure

(gallons, litres, pounds or kilograms) displayed.f. LT ( ): Loran or GPS Type (No signal ‘ LOF ’ displayed).g. Distance to waypoint GPS to check data interface integrity.

(No signal ‘ LBD’ displayed).h. Maximum usable fuel setting.

i. Software version.3. Move USED/REM switch to USED .

a. Displays fuel used since last fuel entry/last reset.


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4. Move USED/REM switch to REM .a. Displays fuel remaining. Pilot should CONFIRM with

actual on board.

5. NO FUEL ADDED b. No action needed in updating fuel as info on previous

fuel levels stored, even when power down.6. SET FULL FUEL TANKS

c. Move ADD/FULL switch to FULL and hold.d. Press ENTER/TEST button.e. Release ADD/FULL it returns to the centre position.f. To verify, move USED/REM switch to REM . Total

usable fuel will be displayed.7. PARTIAL FUEL ADDED

g. Move ADD/FULL to ADD and hold.h. Move USED/REM to REM to increment fuel added

figure until amount of fuel added is reached.i. Press ENTER/TEST button.

j. Release ADD/FULL it returns to the centre position.The computer will add the added fuel remaining anduse the total as the current fuel remaining.

k. To verify, move USED/REM to REM . Total usable fuelwill be displayed.

7. CORRECTING FUEL ON BOARD ENTRY ERRORThis is used when an error has been made by exceeding thecorrect amount when entering the total usable fuel.

l. Move USED/REM to USED simultaneously press and

hold ENTER/TEST .i. The fuel remaining figure will appear andpause in the display window for four (4)seconds. The figure will decrement (thelonger you press, the faster it decrements).

m. Hold USED/REM in the USED position and useENTER/TEST to control the decrementing.

n. When the correct figure is reached, release both

USED/REM and ENTER/TEST .Note: Adding or subtracting fuel by any method resets thefuel used value to zero.


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Morse Alphabet

A . - H . . . . O - - - V . . . - B - . . . I . . P . - - . W . - - C - . - . J . - - - Q - - . - X - . . - D - . . K - . - R . - . Y - . - - E . L . - . . S . . . Z - - . . F . . - . M - - T - G - - . N - . U . . _

Fuel System

Useable fuel per tip tank = 54 Litres

Useable fuel per main tank = 107 LitresTotal fuel = 341 LitresTotal Useable Fuel = 322 Litres