R44 Raven Internal Check-list
Robinson R44 Clipper · Checklist
Overview
This document is a checklist for the Robinson R44 series helicopters, specifically tailored for the R44 Raven model. It provides a comprehensive guide for pilots to ensure all necessary pre-flight, in-flight, and post-flight procedures are followed. The checklist includes critical checks for fuel, engine start, power checks, take-off, and shutdown procedures. It is designed to enhance safety and operational efficiency by ensuring that all systems are checked and verified before and after flight. The checklist is based on the R44 Pilot Operating Handbook (POH) and is FAA approved as of November 17, 2021.
- Fuel should be sufficient for the flight plus 10% reserve and at least 20 minutes remaining after landing.
- Mag drop at 75% RPM should not exceed 7% in 2 seconds during power checks.
- Oil pressure must be at least 25 psi within 30 seconds after starting the engine.
- RPM should stabilize at 101-102% during take-off checks.
- All avionics and systems must be turned off after applying the rotor brake during shutdown.
Document
Source
Originally published by www.helilamb.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Checklist
- Year
- 2021
- Pages
- 1
- File size
- 116 KB
- Publisher
- www.helilamb.com
Common. Rarer than 5% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the Robinson R44 Clipper.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
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In this document
Before Starting Engine
This section outlines the essential checks to perform before starting the engine, including ensuring seat belts are fastened, the fuel shut-off valve is ON, and the rotor brake is disengaged. It emphasizes the importance of checking the cyclic, collective, and pedals for full travel and neutral positions, as well as verifying that all instruments are reading correctly.
Starting Engine & Run-Up
This section details the procedures for starting the engine and conducting a run-up check. Key steps include turning on the master and strobe switches, ensuring the throttle is closed, and checking that oil pressure is within limits (minimum 25 psi within 30 seconds). It also includes checks for the alternator switch and the annunciator panel.
Power Checks
Power checks are crucial for ensuring the helicopter operates within safe parameters. This section specifies the acceptable mag drop at 75% RPM (7% max in 2 seconds) and the need to check the sprag clutch and hydraulic system. It also covers the throttle position and the status of doors.
Take-Off Checks
Before take-off, pilots must verify that the low RRPM system is functioning correctly and that all warning lights are out. The RPM should be stable at 101-102%, and engine temperatures and pressures must be in the green range. A radio call is also required to indicate readiness for lift.
Shutdown Procedures
The shutdown section provides a step-by-step guide for safely shutting down the helicopter. It includes closing the throttle, ensuring the collective is fully down, and waiting for the CHT to drop before disengaging the clutch. The checklist emphasizes the importance of turning off all avionics and battery systems after applying the rotor brake.
Safety notes
- Ensure all checks are completed before engine start to prevent accidents.
- Monitor engine temperatures and pressures closely during flight operations.
Full document text
R44 Raven Internal Check-list CHECK FUEL sufficient for your flight + 10% + at least 20mins remaining after flight GUIDELINE CONSUMPTION - 15usg or 55lts per hr BEFORE STARTING ENGINE Seat Belts ....................................................................... Fastened Fuel Shut-off Valve ...................................................................ON Cyclic & Collective Frictions ..................................................... OFF Cyclic, Collective, Pedals, Throttle ............................. Full travel free Cyclic ............................................................... Neutral, friction ON Collective .................................................... Full down, friction ON Pedals ............................................................................... Neutral Rotor Brake ................................................................. Disengaged Circuit Breakers ......................................................................... In Carb heat .............................................................................. OFF Mixture ....................................................................... FULL RICH Mixture guard .................................................................. Installed Landing Lights ........................................................................ OFF Avionics switch (if installed) .................................................... OFF Clutch ......................................................................... Disengaged All Instruments ...................................................... Reading correct Altimeter set as required ............................................. QFE or QNH Governor & Hydraulics ..............................................................ON STARTING ENGINE & RUN-UP Master & Strobe switches ..........................................................ON Radio call .......................................... For engine start (if required) Throttle twists for prime ............................................. As required Throttle ............................................................................. Closed Check area ......................................................................... CLEAR Ignition switch........................................................ Start, then Both Starter-on LIGHT ...................................................................... Out Set engine RPM ................................................................ 50-60% Clutch switch ................................................................... Engaged Blades turning .................................................Less than 5 seconds Alternator switch .......................................................................ON Oil pressure within 30 seconds ....................................... min 25 psi Avionics and headsets .............................................................. ON Annunciator panel test (if equipped) ............................ All lights on Audio alert (if equipped) ........................................................ Test Wait for CLUTCH LIGHT ......................................................... OUT Warm-up RPM .................................................................. 60-70% Carb Heat ............................................................................ FULL Wait for engine gauges ........................................................ Green WHILST WAITING FOR THE TEMPERATURES AND PRESSURES TO REGISTER IN THE GREEN: Circuit breakers ON as required Radio, GNSS & EC turned ON (as equipped) DI set to compass AH caged Obtain ATIS Altimeter set QFE/QNH Set main and standby RADIO frequency & check volume Transponder ON (or Alt if equipped) Carry out Limitation Checks to determine MCP and T/O power Check passengers’ doors, belts, vents, headsets etc Based upon R44 POH RTR 461 FAA approved 17/11/21 POWER CHECKS Mag Drop at 75% RPM ....................................... 7% MAX in 2 Secs Carb heat ......................................... CAT rise/drop, set as required Sprag Clutch Check .................................................... Needles split Throttle Fully Closed ................................................... Engine Idles Doors (if installed) ............................................ Closed and latched Cyclic/Collective friction ........................................................... OFF Hydraulic system .................................................................. Check Governor ON, increase throttle ............................... RPM 101-102% TAKE-OFF CHECKS Low RRPM system check ..................................... H&L 97% to 90% Warning lights ....................................................................... OUT RPM ............................................................... Stable at 101-102% Engine T’s & P’s ............................................................... All green Radio Call ................................................................. “Ready to lift” CHECK AREA CLEAR, LIFT INTO HOVER Check ......................... Lights, RPM, T’s & P’s, fuel, CAT, hover MAP LIMITATION CHECKS - Use ISA datum 1013hPa SHUTDOWN Throttle .............................................................................. Closed Collective fully down ..................................................... Friction on Cyclic and pedals neutral ............................................... Friction on RPM ................................................................................. 60-70% Wait for CHT drop ................................................... Throttle closed Clutch switch ................................................................ Disengage Wait 30 seconds ......................................................... Mixture OFF Mixture guard ....................................................... Back on mixture
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Wait 30 seconds ................................................. Apply rotor brake Clutch light ................................................................ Extinguishes All avionics, alt, ignition, battery .............................................. OFF Based upon R44 POH RTR 461 FAA approved 17/11/21
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