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MSFS 2024 · General Aviation
Cessna Citation Longitude Startup Checklist
Cessna Citation Longitude Startup Notes
The Longitude is about as automated as jet starts get. Its FADECs own the entire sequence: with the throttles at idle, you press the RUN/STOP button, hit the starter, and the computers meter fuel, control ignition, and guard ITT for you, aborting on their own if something goes wrong. The airplane carries an APU, so the sensible flow is battery, APU, then engines one at a time. Most of your effort goes into the G5000 avionics setup, not the engines.
Because the start is so automated, mistakes here are mostly self-inflicted. Nudging a throttle out of idle mid-sequence interferes with the FADEC, so keep your hands off until both engines are stable. Skipping the APU and battery-starting everything works in the sim but is poor practice and leaves you thin on electrical margin. And pilots regularly start engines before finishing the avionics and flight plan setup, then burn fuel at idle doing work the APU could have powered.
Common mistakes
- Moving throttles out of idle during the FADEC start
- Battery-starting both engines instead of using the APU
- Rushing engine two before the first stabilizes at idle
Related Aircraft
Pilot Tools for This Flight
FLIGHT2.17.1Checklist
Cessna Citation LongitudeMSFS 2024 · Startup Checklist · 142 steps · 19 phases
PHS 1 - Pre-Flight Planning8 steps
| 01 | Weather Briefing (METAR / TAF / SIGMET)REVIEWED | |
| 02 | NOTAMsREVIEWED | |
| 03 | OFP / SimBrief Flight PlanLOADED | |
| 04 | Fuel PlanningVERIFIEDCAUTION: Maximum lateral fuel imbalance for normal operations is 500 lbs. 2,000 lbs has been demonstrated for an emergency return only. | |
| 05 | Weight and BalanceWITHIN LIMITSNOTE: Minimum weight in RVSM airspace is 24,400 lbs. | |
| 06 | SID / STAR / Approach ReviewBRIEFEDCAUTION: Approaches must be flown per published procedures and must appear in the navigation database. FMS visual approaches are not authorised for terrain and obstacle clearance. | |
| 07 | Airport LimitsCHECKEDNOTE: Maximum takeoff and landing altitude 14,000 ft. Maximum tailwind 10 kts. Operations on unpaved surfaces are prohibited. | |
| 08 | Performance and V SpeedsCALCULATED |
PHS 2 - Cockpit Inspection7 steps
| 01 | STBY PWR SwitchTEST AND HOLD, THEN ONNOTE: Green light for a minimum of 10 seconds. | |
| 02 | EMER LTS SwitchARM | |
| 03 | LANDING GEAR HandleDOWN | |
| 04 | BATT Buttons (Both)ON - CHECK VOLTSCAUTION: Battery temperature must be -20 degC or greater for an APU or engine start. | |
| 05 | EIS/CASCHECK | |
| 06 | External Power SourceAS DESIREDNOTE: With EXT PWR AVAIL illuminated, press EXT PWR and check BATT amps at 0 or charging. Alternatively start the APU and disconnect external power. | |
| 07 | Exterior and Interior LightsON / CHECK / OFF, OR AS REQUIRED |
PHS 3 - Cockpit Preparation13 steps
| 01 | Cockpit InspectionCOMPLETE | |
| 02 | EIS/CASCHECK | |
| 03 | APU KnobON / START IF NOT ALREADY RUNNING | |
| 04 | External PowerDISCONNECTED IF USED | |
| 05 | Engine Dry MotorCONSIDER | |
| 06 | ATIS / ClearanceAS REQUIRED | |
| 07 | TrimsCHECK / SET FOR TAKEOFFNOTE: Stabiliser trim is set from the CG versus STAB TRIM chart in the guide. | |
| 08 | Weight and Fuel (MFD GTC Perf)COMPLETED | |
| 09 | Takeoff Data (MFD GTC Perf)COMPLETED | |
| 10 | V SpeedsVERIFY / SET | |
| 11 | Pressurization LDG ELEVVERIFY / SET | |
| 12 | Fuel Quantity and BalanceCHECK | |
| 13 | Autopilot (First Flight of Day)ENGAGE / DISENGAGE |
PHS 4 - Before Start2 steps
| 01 | EMER/PARK BRAKE HandleSET - PARK BRAKE ON DISPLAYED | |
| 02 | EIS/CASCHECK |
PHS 5 - Starting Engines (Using APU)7 steps
| 01 | ThrottlesIDLECAUTION: The throttles sit at IDLE for the start, not at cutoff. The ENGINE RUN/STOP button controls fuel. | |
| 02 | ENGINE RUN/STOP Button (Either Engine)RUNNOTE: The guide does not mandate a side. Either engine may be started first. | |
| 03 | START PressureVERIFY 32 PSI MINIMUMCAUTION: Maximum ground start tailwind component is 16 knots. | |
| 04 | ENGINE STARTER ButtonPUSH | |
| 05 | Engine InstrumentsMONITORWARNING: Maximum start ITT is 650 degC. Three consecutive normal starts are permitted, then a 15 minute cooling period. | |
| 06 | Opposite EngineREPEAT STEPS 1 THROUGH 4 | |
| 07 | EIS/CASCHECK |
PHS 6 - Before Taxi6 steps
| 01 | Flight ControlsFREE AND CORRECT / CHECK | |
| 02 | SpeedbrakesCHECK / RETRACTED | |
| 03 | FlapsSET FOR TAKEOFF | |
| 04 | Attitude, Heading and Air Data DisplaysALIGNED / NO FLAGS | |
| 05 | AltimetersCONFIRM AND COMPARENOTE: Within 75 feet of field elevation and within 50 feet of each other. | |
| 06 | ENGINE ICE PROTECTION ButtonsAS REQUIRED |
PHS 7 - Taxi5 steps
| 01 | Exterior LightsAS REQUIRED | |
| 02 | EMER/PARK BRAKE HandleSTOWED | |
| 03 | BrakesCHECK | |
| 04 | Nosewheel SteeringCHECK | |
| 05 | Thrust ReversersCHECK, THEN STOWEDNOTE: Deploy to reverse idle and verify green T/R DEPLOY indications, then stow and verify the indications clear. |
PHS 8 - Before Takeoff13 steps
| 01 | FlapsSET FOR TAKEOFF | |
| 02 | SpeedbrakesRETRACTED | |
| 03 | TrimsSET FOR TAKEOFF | |
| 04 | Ice Protection SystemsCHECK, AS REQUIREDCAUTION: Takeoff is prohibited with ice contamination on the wing leading edge, winglets, stabilisers, control surfaces and hinge gaps, engine inlets, pylons, windshield or probes. Cockpit fuel temperature is not a substitute for a visual ice inspection. | |
| 05 | V SpeedsDISPLAYED | |
| 06 | SPD KnobFMS | |
| 07 | Crew BriefingCOMPLETENOTE: If a rolling takeoff is planned, add 500 feet to the computed takeoff distance. | |
| 08 | RadarAS REQUIRED | |
| 09 | PITOT/STATIC ButtonON 15 SECONDS THEN NORMNOTE: In icing conditions, within one minute before takeoff. | |
| 10 | Flight ControlsFREE (AFTER TAKEOFF CLEARANCE) | |
| 11 | ICE PROTECTION ButtonsAS REQUIREDCAUTION: Changes to engine anti-ice, wing anti-ice and the FLOW bleed mode are prohibited during takeoff until 400 ft AGL. Takeoff with BLEED ISOLATE in XFLOW is prohibited. | |
| 12 | Exterior LightsAS REQUIRED | |
| 13 | EIS/CASCHECK |
PHS 9 - Takeoff7 steps
| 01 | Static Takeoff - ThrottlesTO | |
| 02 | Autothrottle (If Used)CHECK GREEN HOLD | |
| 03 | EIS/CASCHECK - N1 MATCHES COMMAND, GREEN TO | |
| 04 | BrakesRELEASE | |
| 05 | Rolling Takeoff AlternativeBRAKES RELEASE, THEN TO WITHIN 500 FT | |
| 06 | Elevator ControlROTATE AT VR - 10 DEGREES INITIAL PITCH | |
| 07 | AutopilotNOT BELOW 400 FT AGLWARNING: Autopilot operation is prohibited during takeoff and landing. The takeoff, climb and missed approach autopilot minimum is 400 ft AGL. |
PHS 10 - After Takeoff and Climb8 steps
| 01 | Landing GearUP AT POSITIVE RATE OF CLIMBCAUTION: Maximum landing gear extension speed is 230 KIAS. | |
| 02 | FlapsUP AT OR ABOVE V2 + 20 KNOTS | |
| 03 | ThrottlesCLB | |
| 04 | ICE PROTECTION ButtonsAS REQUIRED | |
| 05 | PressurizationCHECK | |
| 06 | AltimetersSET AT TRANSITION ALTITUDE | |
| 07 | Exterior LightsAS REQUIRED | |
| 08 | APU KnobOFF PRIOR TO CLIMB ABOVE FL350NOTE: APU maximum operating altitude is FL350. |
PHS 11 - Cruise7 steps
| 01 | ThrottlesCRU OR AS DESIRED | |
| 02 | AirspeedWITHIN VMO / MMOCAUTION: Mmo above 29,375 ft is M 0.84. Vmo from 8,000 to 29,375 ft is 325 KIAS, reducing linearly from 305 KIAS at 8,000 ft to 290 KIAS at sea level. | |
| 03 | PRESS SOURCE and ENG BLEED ButtonsNORM ABOVE FL410 | |
| 04 | ECSNORM ABOVE FL410 | |
| 05 | Autopilot (RVSM Airspace)AS REQUIRED | |
| 06 | Altimeters (RVSM Airspace)CROSSCHECKNOTE: Within 200 feet, at intervals of one hour or less. Minimum RVSM airspeed is 190 KIAS. | |
| 07 | Maximum Operating AltitudeFL450NOTE: Maximum flap or gear extension altitude is FL180. |
PHS 12 - Descent4 steps
| 01 | Pressurization LDG ELEVVERIFY LANDING ELEVATION | |
| 02 | APU KnobON / START AT OR BELOW FL310, AS DESIRED | |
| 03 | AltimetersSET AT TRANSITION LEVEL | |
| 04 | Exterior LightsAS REQUIRED |
PHS 13 - Approach10 steps
| 01 | Landing DataCONFIRM | |
| 02 | V SpeedsSET | |
| 03 | Landing DistanceCALCULATE | |
| 04 | ICE PROTECTION ButtonsAS REQUIRED | |
| 05 | FMS / Navigation AidsSET, AS REQUIRED | |
| 06 | MinimumsSET | |
| 07 | AltimetersVERIFY SETTING | |
| 08 | Crew BriefingCOMPLETE | |
| 09 | Flaps1 OR 2, WHEN DESIREDCAUTION: Vfe is 250 KIAS at Flaps 1, 230 KIAS at Flaps 2 and 180 KIAS at Flaps Full. | |
| 10 | Approach Speed ReferenceAOA 0.66 IF NO V SPEEDSNOTE: Approach speeds can be referenced by targeting an angle of attack value of 0.66 in the absence of other performance data. |
PHS 14 - Before Landing7 steps
| 01 | Landing GearDOWN - 3 GREEN | |
| 02 | FlapsFULL | |
| 03 | Exterior LightsAS REQUIRED | |
| 04 | SpeedbrakesRETRACTEDCAUTION: Except where an AFM procedure indicates otherwise, speedbrake operation below 500 ft AGL during landing is prohibited. | |
| 05 | EIS/CASCHECK | |
| 06 | AutopilotDISENGAGE PRIOR TO MINIMUM USE HEIGHTWARNING: The approach autopilot minimum is 160 ft AGL, and autopilot use is prohibited during landing. | |
| 07 | Airspeed (Minimum)VREF |
PHS 15 - Landing5 steps
| 01 | Autothrottle (If Used)CHECK GREEN RETARD AT 50 FT AGL | |
| 02 | ThrottlesIDLE | |
| 03 | Sink Rate600 FPM MAXIMUMCAUTION: Maximum landing sink rate is 600 feet per minute. | |
| 04 | BrakesAPPLY AFTER NOSEWHEEL TOUCHDOWN | |
| 05 | Thrust ReversersDEPLOY - REVERSE IDLE BY 45 KIASNOTE: Maximum tire groundspeed is 195 knots. |
PHS 16 - Go-Around9 steps
| 01 | TO/GA Button (Either Throttle)PUSH | |
| 02 | ThrottlesTO | |
| 03 | Pitch Attitude7.5 DEGREES NOSE UP INITIALLY | |
| 04 | Flaps2 | |
| 05 | Climb AirspeedVAPP MINIMUM | |
| 06 | Landing GearUP AT POSITIVE RATE OF CLIMB | |
| 07 | FlapsUP AT OR ABOVE VAPP + 10 KNOTS | |
| 08 | SPD KnobFMS | |
| 09 | ThrottlesAS REQUIRED |
PHS 17 - After Landing6 steps
| 01 | Thrust ReversersSTOW | |
| 02 | FlapsAS DESIRED | |
| 03 | ENGINE ICE PROTECTION Buttons (Both)AS REQUIRED | |
| 04 | WING Anti-Ice ButtonOFF | |
| 05 | STAB Anti-Ice ButtonOFF | |
| 06 | Exterior LightsAS REQUIRED |
PHS 18 - Shutdown9 steps
| 01 | ThrottlesIDLE | |
| 02 | EMER/PARK BRAKE HandleSET | |
| 03 | ENGINE ICE PROTECTION Buttons (Both)OFF | |
| 04 | ENGINE RUN/STOP Buttons (Both)OFF | |
| 05 | EMER LTS SwitchOFF | |
| 06 | STBY PWR SwitchOFF | |
| 07 | APU KnobOFF | |
| 08 | Exterior LightsOFF | |
| 09 | BATT Buttons (Both)OFF |
PHS 19 - Supplementary - APU Start and Quick Turn9 steps
| 01 | APU - EIS/CASCHECK | |
| 02 | APU KnobONNOTE: Green digits for APU RPM% and EGT should appear within 10 seconds of selecting ON. | |
| 03 | APU KnobSTART AT OR BELOW FL310 | |
| 04 | APU RPMSTABILISES 98-100% | |
| 05 | APU BLEED SwitchNORM | |
| 06 | APU GEN SwitchON | |
| 07 | APU Start Altitude LimitsOBSERVECAUTION: 13,500 ft on the ground, 15,000 ft with two generators and 72% N2 minimum, FL310 on battery only. APU or APU bleed is prohibited during de-ice fluid application. | |
| 08 | Quick Turn - ENGINE RUN/STOP ButtonsSTOPNOTE: For a quick turn: throttles idle, park brake set, engine ice protection off, run/stop to STOP, then restore electrical power and return to Cockpit Preparation. | |
| 09 | Quick Turn - Electrical Power SourceAPU OR EXTERNAL, BATT AMPS 0 OR CHARGING |