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Provides overview of R66 Maintenance Manual, its contents, and related ICA documents.
Instructions for verifying manual effectiveness and subscribing to revisions for updates.
Specifies requirements for authorized mechanics to perform maintenance on R66 helicopters.
Details requirements for authorization of component overhaul procedures.
FAA-approved section specifying inspections and maintenance required under 14 CFR §§ 43.16 and 91.403.
Lists components with recommended time between overhauls (TBO) and replacement times.
Components requiring overhaul after accumulating 2000 hours since new or last overhaul.
Components requiring replacement after accumulating 2000 hours since new.
Specifies limits for airframe and engine accessories, referring to manufacturer's instructions.
Refers to RR300 Operation and Maintenance Manual (OMM) for engine limits.
Provides reprinted Type Certificate Data Sheet (TCDS) for Robinson R66 helicopter.
Discusses the operator's responsibility for maintaining records of time in service for life-limited components.
Details the operator's responsibility to maintain records for engine, airframe, and life-limited components.
Outlines the procedure for removing and retiring life-limited components from service.
Provides required inspection intervals for the R66 helicopter, including calendar and time-in-service limits.
Contains standard inspection criteria for 100-hour/annual maintenance and inspection.
Describes indications of bearing failure and inspection procedures for bearings.
Details inspection criteria for nicks, cuts, scratches, dents, or flattening on push-pull tubes.
Specifies criteria for maximum axial and radial play, and looseness in rod ends.
Describes the use of elastomeric bearings in the tail rotor hub and how fatigue, contamination, or overload can degrade them.
Explains the use of Telatemp indicators to record increases in operating temperatures of hydraulic pump and tail rotor gearbox.
Lists checklists for 100-hour/annual maintenance and inspection, including ground and flight checks.
Details ground checks for the aircraft not running, covering various systems and controls.
Provides procedures for engine run-up checks, including systems operation and performance indications.
Outlines procedures for hover and level flight checks, including power assurance and autorotation checks.
Provides a comprehensive checklist for 100-hour/annual maintenance and inspection.
Details the procedures for the 2000-hour maintenance and inspection.
Provides information for the 12-year maintenance and inspection.
Covers special maintenance procedures and instructions, including warnings about damaged aircraft parts.
Outlines inspection procedures following a tail skid strike evidence.
Details inspection procedures following a tail rotor strike, divided into two parts concerning blade contact and sudden stoppage.
Details inspection procedures after main rotor blade contact or sudden stoppage.
Provides inspection procedures for rotor overspeeds between 106% and 112%, and above 112%.
Describes inspection procedures for yielding of cross tubes or fuselage primary structure after a hard landing.
Details the procedure for dye penetrant inspection of the F020-1 upper frame.
Provides instructions for polishing out corrosion on steel frame tube members and priming the area.
Instructs to remove and return main rotor gearbox to RHC if overtemp annunciator segment illuminates.
Details corrective actions based on particles found on the chip detector.
Describes inspection and corrective actions for particles found in the tail rotor gearbox paint filter or chip detector.
Provides procedure for addressing main rotor gearbox filter bypass indicator activation.
Recommends 100-hour inspection and inspection for lightning strike damage after a strike.
Provides a description of the R66 Turbine helicopter, including seating, engine, and weight specifications.
Defines the datum as 100 inches forward of the main rotor centerline.
Explains that fuselage, tailcone, water line, and butt line station values are measured in inches.
Illustrates the external dimensions of the R66 helicopter.
Provides interior dimensions for the baggage compartment.
Presents diagrams illustrating fuselage station (FS) locations.
Lists fuselage station (FS) locations with corresponding measurements.
Lists tailcone station (TS) locations with corresponding measurements.
Lists water line (WL) station locations with corresponding measurements.
Lists butt line (BL) station locations with corresponding measurements.
Illustrates and lists access and inspection panels on the R66 helicopter.
Details interchangeability of B526 screws and B527-08 washers for cowlings and access panels.
Illustrates and lists antenna locations on the R66 helicopter.
Provides procedures and cautions for jacking the helicopter, including proper jack placement and operation.
Details procedures for hoisting the helicopter using a lifting fixture or nylon rope.
Describes the importance of performing leveling and weighing in a zero-wind environment.
Provides instructions for leveling the helicopter for weight and balance calculations.
Details procedures for leveling the helicopter for rigging purposes.
Instructs to reweigh the helicopter when empty weight or CG has been modified or calculations are suspect.
Outlines steps for preparing the helicopter for weighing, including defueling, servicing, cleaning, and verifying components.
Details the procedure for weighing the helicopter and calculating net weights, CG, and ballast adjustments.
Discusses fixed ballast and its impact on helicopter center of gravity (CG).
Provides instructions for installing or removing nose ballast plates based on calculations.
Details procedures for removing and installing empennage ballast, including weight and balance record updates.
Provides general procedures for ground handling, including installation and removal of ground handling wheels.
Details the installation and removal procedures for ground handling wheels.
Describes how to move the helicopter using ground handling wheels, including steering and safety precautions.
Mentions the use of MT950-1 Universal ground handling cart for handling the R66.
Refers to R66 Pilot's Operating Handbook (POH) Section 4 for ground power start procedures.
Provides precautions and procedures for trailering the R66 helicopter, noting it's not normally recommended.
Details procedures for parking the helicopter, including cyclic and collective control positioning.
Provides guidance for parking in high winds or turbulent air, and in extreme conditions.
Describes the procedure for installing main rotor blade tie-downs, including cautions on overtightening.
Details the removal and installation procedures for main rotor blade supports.
Provides instructions for storing the helicopter for extended periods, including engine preservation and periodic inspections.
Lists and illustrates the locations of various placards and decals on the R66 helicopter.
Provides illustrations of various placards and decals found on the R66 helicopter.
Provides servicing procedures for the main rotor gearbox, including draining and adding fluid.
Details servicing procedures for the main rotor gearbox lubrication system.
Describes the procedure for replacing the main rotor gearbox oil filter.
Covers the removal, cleaning, and installation of the chip detector and sight gage.
Provides servicing procedures for the tail rotor gearbox, including draining and adding fluid.
Details servicing procedures for the tail rotor gearbox lubrication system.
Covers the removal, cleaning, and installation of the tail rotor gearbox chip detector and sight gage.
Details the procedure for draining and flushing the tail rotor gearbox.
Provides an overview of the hydraulic system, including warnings and cautions.
Covers servicing procedures for the hydraulic system, including draining and adding fluid.
Describes the procedure for replacing the hydraulic system filter.
Details the procedure for draining and flushing the hydraulic system.
Provides the procedure for bleeding the hydraulic system.
Includes instructions for removal and installation of airframe fuel system components.
Provides instructions for fueling the helicopter, including grounding and fuel grade verification.
Details the procedure for defueling the helicopter.
Covers procedures related to main rotor blades, including warnings about hazardous materials.
Provides information on servicing the pitch bearing housing.
Details procedures for servicing the engine oil system, including draining and adding fluid.
Outlines procedures for compressor rinse and wash, referring to RR300 Series OMM.
Provides information on the air conditioning system, including refrigerant recovery and charging.
Details procedures for recovering refrigerant and charging the air conditioning system.
Describes the procedure for replacing the desiccant in the air conditioning system.
Explains techniques for detecting leaks in the air conditioning system.
Provides guidelines for calibrating track and balance equipment and performing dynamic rotor balancing.
Outlines procedures for preparing the helicopter for track and balance operations.
Details flight checks required for main rotor track and balance, including hover and airspeed checks.
Provides procedures for adjusting main rotor blade pitch links and trim tabs.
Describes procedures for adjusting tip weights (spanwise) and teeter hinge bolt shims (chordwise).
Lists common symptoms encountered during track and balance operations and their probable causes and corrections.
Provides procedures for checking and adjusting autorotational RPM.
Provides guidelines for calibrating track and balance equipment for tail rotor dynamic balancing.
Outlines procedures for preparing the helicopter for tail rotor dynamic balance.
Details ground checks for tail rotor dynamic balance, including RPM checks and equipment removal.
Describes procedures for adjusting pitch horn-to-pitch link fasteners and blade-to-hub fasteners for tail rotor balance.
Provides procedures for rigging main rotor flight controls, including cyclic and collective adjustments.
Details procedures for rigging main rotor blade angles, including measuring and adjusting blade angles.
Describes procedures for adjusting collective travel and blade angles for collective down and up positions.
Details procedures for adjusting cyclic travel for left, right, forward, and aft positions.
Provides procedures for rigging tail rotor flight controls, including pedal adjustments.
Describes removal and installation procedures for pedals and pedal bearing blocks.
Provides instructions for adjusting the forward bellcrank.
Provides instructions for adjusting the intermediate bellcrank.
Details procedures for rigging tail rotor blades, including tracking and balance adjustments.
Provides guidelines for calibrating track and balance equipment for fan shaft and engine shaft balancing.
Outlines procedures for preparing the helicopter for fan shaft and engine shaft balancing.
Details ground checks for fan shaft and engine shaft balancing equipment.
Describes the R66 helicopter's construction, including fuselage structure, tailcone, cowlings, and fairings.
States that the cabin assembly is a non-field-replaceable assembly.
Provides information on firewall and keel panel replacement and repair procedures.
Details procedures for removal and installation of fairings, cowlings, and panels.
Describes procedures for removal and installation of the engine cowling.
Details procedures for opening, closing, removal, and installation of the mast fairing.
Provides procedures for removal and installation of the tailcone cowling.
Refers to Section 6-70 for access and inspection panel location and illustration.
Details procedures for removal and installation of lower and upper frame assemblies.
Provides procedures for removal and installation of the lower frame assemblies.
Details procedures for removal and installation of the hydraulic servo support frame.
Provides procedures for removal and installation of the upper frame assembly.
Details procedures for removal and installation of the tailcone assembly.
Outlines inspection criteria and repair limits for the tailcone assembly, including scratches and dents.
Provides procedures for removal and installation of the empennage assembly.
Details procedures for removal and installation of the upper and lower vertical stabilizers.
Provides procedures for removal and installation of the upper and lower horizontal stabilizer assemblies.
Details procedures for removal and installation of the tail rotor guard.
Provides procedures for removal and installation of the tail skid.
Describes the main rotor system, including blades, hub, hinges, and bearings.
Details procedures for removal and installation of main rotor blades.
Provides procedures for removal and installation of blade boots.
Details procedures for removal and installation of the main rotor hub.
Describes procedures for replacing bearings in the main rotor hub.
Covers journal and shim calculations for teeter hinge and coning hinge adjustments.
Provides calculations for teeter hinge and coning hinge journals and shims.
Details procedures for adjusting teeter hinge and coning hinge friction.
Provides procedures for drilling nuts and bolts for safety wiring and alignment.
Outlines criteria for inspecting main rotor blades for damage, including scratches, dents, and voids.
Specifies limits for scratches and corrosion on blade skins and doublers.
Details limits for dents on blade skins, doublers, trailing edge bond joints, and leading edge caps.
Specifies limits for spar damage, excluding leading edge cap.
Provides limits for root fitting damage and repair procedures.
Specifies limits for nicks and notches on blade trailing edge and blade tip.
Outlines limits for voids and debonds in tip caps, spars, trailing edges, doublers, and honeycomb.
Details repair procedures for main rotor blades, including measuring damage and sealing/filling/fairing.
Provides procedures for sealing, filling, and fairing repaired areas on main rotor blades.
Outlines procedures for painting main rotor blades, including masking, priming, and color application.
Describes the tail rotor drive system, including shafts, couplings, gearbox, and fan.
Details procedures for removal and installation of the engine shaft weldment.
Provides procedures for shimming the forward flex plate assembly for the engine driveline.
Details procedures for removal and installation of the clutch assembly.
Provides procedures for removal and installation of the main rotor gearbox assembly.
Details procedures for replacing the yoke and seal assemblies for the tail rotor drive and engine-driven systems.
Describes procedures for removal and installation of the rotor brake.
Provides procedures for removing and installing rotor brake pads.
Details procedures for checking and adjusting rotor RPM.
Describes the tail rotor assembly, including blades, hub, hinges, and bearings.
Details procedures for removal and installation of the tail rotor assembly.
Provides procedures for performing chordwise and spanwise static balance checks of the tail rotor assembly.
Details procedures for removal and installation of tail rotor blades.
Outlines repair limits, methods, and materials for tail rotor blades, including inspection criteria.
Specifies limits for scratches and corrosion on tail rotor blade skins and doublers.
Details limits for dents on tail rotor blade skins, trailing edge bond joints, and leading edge caps.
States that any blade with erosion causing deformation or ripples in the leading edge must be replaced.
Provides limits for root fitting damage and repair procedures.
Specifies limits for nicks and notches on the blade trailing edge.
Refers to Section 62-52 for painting procedures for tail rotor blades.
Details procedures for removal and installation of the tail rotor hub.
Describes procedures for replacing bearings in the tail rotor hub.
Provides visual inspection guidelines for the tail rotor hub and its components.
Describes the tail rotor drive system, including shafts, couplings, gearbox, and fan.
Details procedures for removal and installation of the tail rotor drive fan shaft.
Provides procedures for removal and installation of the tail rotor drive shaft assembly.
Details procedures for measuring and recording tail rotor drive shaft runout.
Covers procedures for disassembly, inspection, assembly, and friction adjustment of the damper assembly.
Provides procedures for shimming the intermediate flex plate assembly for the tail rotor driveline.
Details procedures for removal and installation of the tail rotor gearbox assembly.
Describes procedures for replacing the output shaft seal on the tail rotor gearbox.
Details procedures for replacing the input shaft seal on the tail rotor gearbox.
Describes the R66 flight control system, including primary controls, cyclic stick, and collective.
Provides information on cyclic controls, including removal and installation procedures.
Details procedures for removal and installation of the cyclic control assembly.
Provides procedures for adjusting grip angle, and removal and installation of the cyclic grip assembly.
Details procedures for adjusting cyclic friction.
Provides information on collective control, including removal and installation procedures.
Details procedures for removal and installation of the collective stick assembly.
Provides procedures for adjusting collective friction.
Details procedures for removal and installation of the jackshaft and strut assembly.
Provides procedures for removal and installation of the jackshaft.
Details procedures for removal and installation of the swashplate assembly.
Provides procedures for adjusting swashplate tilting friction.
Details procedures for removal and installation of upper and lower scissor assemblies.
Provides information on tail rotor controls, including pedals and pitch control.
Details procedures for removal and installation of the pedals.
Provides procedures for removal and installation of the pitch control.
Details procedures for removal and installation of various bellcranks.
Provides procedures for removal and installation of C317-5 or C317-9 bellcranks.
Details procedures for removal and installation of C317-7 bellcrank.
Provides procedures for removal and installation of the F316-1 bellcrank.
Details procedures for removal and installation of the A331-4 bellcrank.
Provides procedures for removal and installation of the A120-5 bellcrank.
Describes the Rolls-Royce model 250-C300/A1 turboshaft engine and its systems.
Details procedures for removal and installation of the engine.
Provides instructions for preparing the engine for shipment to a Rolls-Royce maintenance facility.
Details procedures for preparing the engine for installation into the helicopter.
Covers procedures for the induction system, including air filter cleaning and compressor wash.
Provides procedures for removal and installation of the air filter assembly.
Details procedures for removal and installation of the cage assembly.
Provides procedures for removal and installation of the engine inlet bellmouth.
Details procedures for removal and installation of the exhaust weldment.
Covers procedures for various engine accessories, including starter-generator and GCU.
Details procedures for removal and installation of the starter-generator.
Provides procedures for removal and installation of the generator control unit.
Details procedures for removal, installation, and downloading EMU data.
Describes the engine anti-ice system, its components, and operation.
Refers to RR300 Series Operation and Maintenance Manual (OMM) for anti-ice system maintenance.
Describes engine controls including twist grip throttle, governor, fuel cutoff, and start button.
Details procedures for removal and installation of the Fuel Control Unit (FCU).
Provides procedures for rigging the FCU throttle control.
Details procedures for rigging the FCU fuel cutoff control.
Provides procedures for removal and installation of the Power Turbine Governor (PTG).
Details procedures for rigging the PTG control.
Provides procedures for performing the PTG rigging check.
Describes the R66 helicopter's dry-sump engine oil system, including components and circulation.
Details procedures for removal and installation of the scroll and fanwheel assemblies.
Provides procedures for measuring fanwheel-to-inlet gaps and trimming inlets.
Details procedures for removal and installation of the oil tank assembly.
Provides procedures for removal and installation of the oil temperature sender.
Details procedures for removal and installation of the oil tank sight gage.
Provides procedures for removal and installation of the engine oil cooler.
Details procedures for removal and installation of engine oil line assemblies and fittings.
Describes the standard primary instruments and pitot-static system.
Covers pitot system and static system leak tests.
Lists and describes primary instruments such as airspeed indicator, altimeter, and tachometers.
Describes the vertical speed indicator and checks for zero-rate needle indication.
Describes the airspeed indicator operation and units.
Details the engine and rotor dual tachometer, including removal and installation.
Describes the sensitive altimeter and its calibration procedure.
Explains the electronic torquemeter and its function.
Describes the magnetic compass and its location.
Lists and describes various engine gages.
Describes the electronic N1 tachometer and its sensor.
Details the MGT gage connection and calibration requirements.
Describes the electronic engine oil pressure gage and sensor.
Describes the electronic engine oil temperature gage and sensor.
Describes the electric fuel quantity gage and its sender.
Lists additional standard indicating equipment such as clock and ammeter.
Describes the standard electric analog clock and optional digital clock.
Explains the ammeter's function in indicating electrical system loads.
Describes the OAT gage/voltmeter connection and probe.
Describes the standard and optional hourmeters and their activation methods.
Refers to R66 Pilot's Operating Handbook (POH) Section 2 for instrument markings.
Provides a guide for troubleshooting common instrument indications.
Describes the Garmin G500H EFIS, its capabilities, and components.
Details the installation procedures for the Garmin GDU 620 display.
Covers the installation of the Aspen EFD EFIS system.
Details the installation procedures for the Aspen EFD500H and EFD1000H displays.
Describes the standard 28-volt DC electrical system, its components, and the circuit breaker panel.
Provides procedures for disconnecting, removing, installing, and connecting the battery.
Describes the external power receptacle and its function.
Details the starter-generator system and its operation during engine start.
Describes the aircraft lighting system, including anti-collision, position, landing, and interior lights.
Explains the illuminated segments on the annunciator panel and their indication of system status.
Provides instructions for adjusting the low rotor RPM warning unit.
Describes the five-place audio system, its modes of operation, and controls.
Details the EMU's function in monitoring engine parameters and recording exceedances.
Provides information on ELT installation, programming, transmitter removal/installation, and dongle handling.
Guides the calculation of total electrical load by identifying installed equipment and summing loads.
Describes the Garmin G500H EFIS and its capabilities.
Details the installation procedures for the GDU 620 display.
Provides procedures for the LRU installation of the GDC 74H Air Data Computer.
Details procedures for the LRU installation of the GRS 77H Attitude and Heading Reference System.
Provides procedures for the LRU installation of the GMU 44 Magnetometer.
Details the installation of GPS systems, including WAAS-enabled receivers.
Provides procedures for the installation of the FreeFlight RA-4500 radar altimeter.
Details the installation of the Garmin GTX 33 transponder.
Provides procedures for the installation of the Garmin GDL 69A XM Receiver.
Lists avionics configurations for specific R66 serial numbers.
Details procedures for adjusting grip angle, and removal/installation of cyclic grip assembly.
Covers the installation of Aspen EFD EFIS systems.
Details the installation of the Garmin GTR 225B COM radio.
Provides procedures for the installation of the Garmin GDL 88 ADS-B In Receiver.
Details the installation of the Garmin GTX 330 ES Transponder.
Provides procedures for the installation of Garmin GTN 600/700-series GPS.
Describes new features for the main switch panel and electrical system.
Details the installation of the Garmin GMA 350H audio control for the intercom system.
Provides the electrical system wiring diagram for Revision P of F024-2.
Provides the electrical system wiring diagram for Revision J of F024-1.
Illustrates the wiring diagram for the air conditioning system installation.
Shows the wiring diagram for the ADF installation.
Illustrates the wiring diagram for the standard audio system installation.
Provides the wiring diagram for the dual audio control installation.
Shows the wiring diagram for the PA/Siren installation.
Illustrates the wiring diagram for the autopilot system installation.
Provides the wiring diagram for the Garmin GDU 620 display installation.
Shows the wiring diagram for the Garmin GDC 74H Air Data Computer installation.
Illustrates the wiring diagram for the Garmin GRS 77H AHRS installation.
Provides the wiring diagram for the Garmin GTN 600/700-series GPS installation for G500H EFIS.
Shows the wiring diagram for the Radar Altimeter installation.
Illustrates the wiring diagram for the Garmin GTX 33 Transponder installation.
Provides the wiring diagram for the Garmin GDL 69A XM Receiver installation.
Shows the wiring diagram for the Aspen EFD500H display installation.
Illustrates the wiring diagram for the Aspen EFD500H & EFD1000H displays installation.
Provides the wiring diagram for the Garmin GTR 225B COM radio installation.
Shows the wiring diagram for the Garmin GDL 88 ADS-B In Receiver installation.
Illustrates the wiring diagram for the Garmin GTX 330 ES Transponder installation.
Provides the wiring diagram for the Garmin GTN 600/700-series GPS installation (Pilot-Side Console).
Shows the wiring diagram for the Intercom System Installation (Garmin GMA 350 Audio Control).
Lists Robinson R66 special tools to be used with applicable maintenance instructions.
References special tools to their corresponding maintenance sections.
Lists effective pages and their effective dates for the R66 Maintenance Manual.
General