Robinson Helicopter R44

Service difficulty reports · 447

Newest first. General aviation reporting is voluntary.

Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = 'R44'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR CA090223002Shaft · worn(CAN) SPRAG JOURNALS ON SHAFT AND HUB WORN UNDERSIZE/OVERSIZE.Feb 12, 2009 · Robsin R44 · Engine/Transmission CouplingSDR CA090116014Attach Bracket · crackedDUE TO PAST ISSUES WITH ELT`S GOING OFF, THE ELT`S WERE FOUND TO BE AT THE INCORRECT CLOCK ANGLE. THE ELT WAS REPOSITIONED TO THE PROPER ANGLE, WHICH WE THINK MAY HAVE CAUSED THE CRACKING OVER TIME. A SMALL CRACK WAS FOUND IN THE BOTTOM ANGLE BRACKET RADIATIJan 15, 2009 · Robsin R44 · Fuselage, Equipment Attach FittingsSDR CA081110006Relay · failed(CAN) BATTERY WOULD NOT COME ONLINE ALTHOUGH FULL BATTERY VOLTAGE WAS OBSERVED AT BATTERY CONNECTIONS. BATTERY RELAY WAS REPLACED AND ACFT RETURNED TO SERVICE.Oct 30, 2008 · Robsin R44 · Battery/Charger SystemSDR CA081107006Actuator · malfunctioned(CAN) CLUTCH ACTUATOR REMOVED DUE TO FAULTY SWITCHES.Oct 29, 2008 · Robsin R44 · Engine/Transmission CouplingSDR CA081028006Bar · cracked(CAN) DURING AN AES MIDLIFE INSP FOUND: SPRAG CAGE CRACKED (2) CROSSBARS SHAFT WORN UNDERSIZE HOUSING WORN OVERSIZE.Oct 24, 2008 · Robsin R44 · Engine/Transmission CouplingSDR CA081015006Wire · chafed(CAN) TACH WIRES CHAFED THROUGH AND GROUNDING TO THE COIL PRIMARY CONNECTOR. TACH WIRES INCORRECTLY ROUTED TCM SB663A NOT COMPLIED WITH FOR WIRE ROUTING. VERY HIGH RESISTANCE FOUND BETWEEN THE TERMINALS OF THE TACH POINTS, WHEN CLOSED 1200-1500 OHMS, PROBLEMOct 15, 2008 · Robsin R44 · Ignition System WiringSDR CA080927001Piston Ring · broken(CAN) PILOT REPORTED ENGINE ROUGH AT 80 PERCENT RPM. ACFT WAS GROUNDED AND A COMPRESSION CHECK WAS CONDUCTED. CYLINDER 1 WAS FOUND TO HAVE 58/80 PSI. CYLINDER AND PISTON REMOVED AND COMPRESSION RING WAS FOUND CRACKED. PISTON/CYLINDER REPLACED. ACFT RETURNESep 26, 2008 · Robsin R44 · Reciprocating Engine Power SectionSDR CA080925004Magneto · failed(CAN) PILOT REPORTED THERE WAS A HIGH ENGINE RPM RISE. MAGNETO WAS REPLACED AND NO FURTHER ISSUES WERE NOTED. THIS IS DUPLICATED ON REPORT 20080925003.Sep 19, 2008 · Robsin R44 · Magneto/DistributorSDR CA080925003Magneto · failed(CAN) PILOT SNAGGED THERE WAS A HIGH ENGINE RPM RISE. MAGNETO WAS REPLACED AND NO FURTHER ISSUES WERE NOTED.Sep 19, 2008 · Robsin R44 · Magneto/DistributorSDR CA080919002Alternator · damaged(CAN) ALTERNATOR HAS STRIPPED HOUSINGSep 16, 2008 · Robsin R44 · AC Generator-AlternatorSDR CA080919010Magneto · malfunctioned(CAN) REMOVED DUE TO ERRATIC ENGINE RPM.Sep 8, 2008 · Robsin R44 · Magneto/DistributorSDR CA080822003Actuator · failed(CAN) THE CLUTCH WOULD NOT ENGAGE DURING ACFT START. REPLACED CLUTCH ACTUATOR.Aug 3, 2008 · Robsin R44 · Engine/Transmission CouplingSDR CA080822001Actuator · failed(CAN) THE CLUTCH ACTUATOR WOULD NOT FULLY ENGAGE, SERVICABLE ACTUATOR INSTALLED.Jul 28, 2008 · Robsin R44 · Engine/Transmission CouplingSDR CA080721005Actuator · damaged(CAN) DURING 100 INSPECTION AND ACTUATOR FUNCTION TEST, 1 OF THE COLUMN SPRINGS SWITCH DID NOT RESPOND. FANWHEEL ASSY REMOVED AND SWITCHES CHECKED MANUALLY AND FOUND SERVICEABLE. IT SEEMS LIKE THE SPRINGS ON 1 SIDE DID NOT PUSH THE SWITCH COMPLETELY AND THERE Jul 21, 2008 · Robsin R44 · Engine/Transmission CouplingSDR CA080708008Actuator · loose(CAN) THE CLUTCH ACTUATOR LOWER MOTOR HSG FLANGE TO WORM GEAR FOUND LOOSE.Jun 29, 2008 · Robsin R44 · Engine/Transmission CouplingSDR CA080624002Arm · separated(CAN) DART HAS RECEIVED REPORTS FROM CUSTOMERS THAT UNDER CERTAIN CIRCUMSTANCES ON D044-715-011 AND D022-716-011 CARGO MIRROR INSTALLATIONS AT CHG001 THE D2010-104 ARM MAY CRACK DURING FLIGHT CAUSING THE D2011-101 MIRROR TO SEPARATE FROM THE ASSEMBLY. DART SERJun 10, 2008 · Robsin R44 · Fuselage, Equipment Attach FittingsSDR CA080514007Shaft · damaged(CAN) ON POST FLIGHT THE COOLING FAN WAS FOUND SPUN ON THE LOWER BEARING AND SHAFT ASSY. (ALIGNMENT MARK MISALIGNED) (TC NR 20080514007)May 8, 2008 · Robsin R44 · Tail Rotor Drive ShaftSDR JJWA2008032577743Tube · chafedFOUND WIRING TO FREEZE SWITCH HAD CHAFED THROUGH THE CAPILLARY TUBE TEMP SENSOR RELEASING ALL IT'S REFRIGERANT, CAUSING SWITCH TO OPEN AND NOT ALLOW COMPRESSOR TO RUN. SWITCH NOT FIELD REPLACEABLE, HAD TO SEND TO FACTORY FOR REPAIRS. INSTALLED SPIRAL WRAP ANTIMar 25, 2008 · N157HP · Robsin R44 · Air Conditioning System WiringSDR CA080121011Magneto · failed(CAN) DURING MAGNETO CHECK PRIOR TO FLIGHT, THE RT MAGNETO FAILED. MAGNETO REPLACED AND CHECKED SERVICEABLE. (TC NR 20080121011)Jan 4, 2008 · Robsin R44 · Magneto/DistributorSDR CA080103006Magneto · unserviceable(CAN) ENGINE WOULD NOT START. LT MAGNETO FOUND UNSERVICEABLE. MAGNETO CHANGED, GROUND RUN AND FUNCTIONAL CHECKS CARRIED OUT SERVICEABLE. (TC NR 20080103006)Dec 27, 2007 · Robsin R44 · Magneto/DistributorSDR CA071127003Bearing · spalled(CAN) WHILE CONDUCTING A DI, THE M/R BLADE BOOT WAS FOUND DISTORTED. THE BOOT WAS REPLACED AND A CHECK OF THE SPINDLE BEARINGS WERE FOUND TO BE ROUGH. FURTHER INVESTIGATION REVEALED THE NR 6 BEARING INNER RACE WAS FOUND SPALLING. BEARING REPLACED AND ASSY REINNov 26, 2007 · Robsin R44 · Main Rotor BladesSDR CA071109011Cylinder · inoperative(CAN) DURING A 50 HOUR INSPECTION, BOTTOM SPARK PLUG ON CYLINDER NR 5 REVEALED UNUSUAL AMOUNT OF OIL. A COMPRESSION TEST WAS CARRIED OUT AND CYLINDER NR 5 WAS NOTED TO HAVE 18 OVER 80 PSI COMPRESSION. TSO WILL HAVE TO BE VERIFIED. (TC NR 20071109011)Nov 8, 2007 · Robsin R44 · Reciprocating Engine Cylinder SectionSDR CA070919006Antenna · missing(CAN) DURING A POST FLIGHT CHECK THE ELT ANTENNA CONNECTOR WAS FOUND BROKEN OFF THE ELT CASE. UPON FURTHER INVESTIGATION IT WAS ALSO NOTED THAT THE PORTABLE ANTENNA WAS MISSING. A THOROUGH SEARCH WAS CARRIED OUT FOR THE MISSING PARTS WITHIN THE AREA. NO PARTS Sep 17, 2007 · Robsin R44 · Emergency Locator BeaconSDR CA070904001Exhaust Valve · worn(CAN) AN INTERMITENT SLIGHT POWER LOSS WAS INITIALY MISDIAGNOSED AS A FAULTY GOVERNOR CONTROL BOX. WHEN THE PROBLEM PERSISTED, IT WAS DETERMINED THAT THE EXHAUST VALVE IN THE NR 1 CYLINDER WAS WORN AND HAD A SMALL PIECE MISSING. THE CYLINDER ASSEMBLY IS CURRENSep 2, 2007 · Robsin R44 · Reciprocating Engine Cylinder SectionSDR CA070827015Alternator · malfunctioned(CAN) DURING LANDING THE ALTERNATOR LIGHT FAILED TO EXTINGUISH. CHARGING SYSTEM WAS CHECKED AND THE ALTERNATOR WAS THE DEFECTIVE PART. THE ALTERNATOR WAS REPLACED AND NO FURTHER ISSUES WERE NOTED. (TC NR 20070827015)Aug 10, 2007 · Robsin R44 · Alternator-Generator DriveSDR CA070829002Governor · intermittent(CAN) DURING CRUISE, THE GOVERNOR CONTROL SETTING BECAME HIGHER. MAINTENANCE INVESTIGATED AND NO ISSUES COULD BE FOUND. GOVERNOR WAS REPLACED AND NO ISSUES WERE NOTED. (TC NR 20070829002)Jul 14, 2007 · Robsin R44 · Turbine GovernorSDR CA070524008Switch · failed(CAN) DURING AN INSP, CLUTCH ACTUATOR FAILED TEST AND CLUTCH WOULD NOT ENGAGE DUE TO MICROSWITCH FAILURE. CLUTCH REPLACED AND CHECKED SERVICEABLE. (TC NR 20070524008)May 23, 2007 · Robsin R44 · Engine/Transmission CouplingSDR CA070220003Bearing · defective(CAN) DAMPER HANGAR BEARING INNER RACE ROTATED ON DRIVESHAFT ASSY. BEARING REPLACED ON DRIVE SHAFT ASSY WITH SERVICABLE UNIT. (TC NR 20070220003)Feb 18, 2007 · Robsin R44 · Tail Rotor Drive ShaftSDR 2006FA0001172Boot · leakingFLUID LEAKING FROM MAIN ROTOR BLADE PITCH BEARING HOUSING.Dec 4, 2006 · N7133E · Robsin R44 · Main Rotor BladesSDR 2006FA0001171Boot · leakingFLUID LEAKING FROM MAIN ROTOR BLADE PITCH BEARING HOUSING.Dec 4, 2006 · N7133E · Robsin R44 · Main Rotor BladesSDR 2006FA0001176Boot · leakingFLUID LEAKING FROM MAIN ROTOR BLADE PITCH BEARING HOUSING.Dec 3, 2006 · N69KA · Robsin R44 · Main Rotor BladesSDR 2006FA0001175Boot · leakingFLUID LEAKING FROM MAIN ROTOR BLADE PITCH BEARING HOUSING.Dec 3, 2006 · N69KA · Robsin R44 · Main Rotor BladesSDR 2006FA0001174Boot · leakingFLUID LEAKING FROM MAIN ROTOR BLADE PITCH BEARING HOUSING.Dec 3, 2006 · N69KA · Robsin R44 · Main Rotor BladesSDR 2006FA0001173Boot · leakingFLUID LEAKING FROM MAIN ROTOR BLADE PITCH BEARING HOUSING.Dec 3, 2006 · N69KA · Robsin R44 · Main Rotor BladesSDR CA061107009Distributor Gear · failed(CAN) DURING CRUISE FLIGHT, THE PILOT NOTICED A CHANGE IN ENGINE NOISE AND A SLIGHT YAW FOLLOWED BY THE LOW ROTOR HORN. PILOT DECREASED POWER WHICH RESULTED IN THE ROTOR RPM RECOVERING TO A NORMAL SETTING. THE PILOT FINISHED THE SHORT FLIGHT AT A LOWER POWER SNov 6, 2006 · Robsin R44 · Magneto/DistributorSDR CA061030002Bearing · damaged(CAN) ABNORMAL SOUND HEARD ON SHUTDOWN. ON FURTHER INSPECTION THE INNER RACE OF THE DAMPER BEARING ON THE TAIL ROTOR DRIVESHAFT HAD BEEN FOUND TO HAVE SPUN. THE INNER RACE OF THE BEARING IS NOT ALLOWED ANY MOVEMENT RELATIVE TO THE DRIVE SHAFT. THE TAIL ROTOOct 10, 2006 · Robsin R44 · Tail Rotor Drive ShaftSDR CA060915001Muffler · cracked(CAN) WHILE PERFORMING CF90-3R2 ON THE MUFFLER ASSEMBLY THE EXHAUST SHROUD WAS REMOVED AND A (2) INCH CRACK WAS FOUND WHERE THE EXHAUST PIPE JOINS THE MUFFLER. (TC NR 20060915001)Sep 14, 2006 · Robsin R44 · Engine Noise SuppressorSDR EVGR20060915Coil · wornDURING THE FIRST 500 HOUR MAGNETO INSPECTION, THE TAB ON THE COIL WAS MISALIGNED AND EXHIBITED EXCESSIVE WEAR.Sep 13, 2006 · N628PM · Robsin R44 · Magneto/DistributorSDR CA060711004Distributor Gear · damaged(CAN) AC WAS ON FINAL APPROACH WHEN PILOT HEARD A CHANGE IN ENGINE NOISE FOLLOWED BY LOW ROTOR HORN. INITIATED AN AUTOROTATION, NOTICED THAT ENGINE, M/R RPM`S RETURNED TO NORMAL. CONTINUED HIS APPROACH AS INITIALLY PLANED, LANDED HELICOPTER WITHOUT FURTHER INCJul 10, 2006 · Robsin R44 · Magneto/DistributorSDR CA060808004Bearing · broken(CAN) CONNECTING ROD BEARINGS ON NR 1,3, AND 5 RODS HAD SIGNIFICANT SURFACE DELAMINATION. BROKEN PIECES .5 INCH L X .1250 INCH W FOUND IN BETWEEN CONNECTING ROD BEARING AND CRANKSHAFT. (TC INCH 20060808004)Jul 3, 2006 · Robsin R44 · Reciprocating Engine Power SectionSDR CA060608007Structure · mismanufacturedDURING SCHEDULED MANDATORY REPLACEMENT OF THE HORIZONTAL STABILIZER IT WAS DETERMINED THAT THE NEW PART SUPPLIED BY THE MANUFACTURE WAS INCORECTLY MANUFACTURED. THE MOUNTING HOLES FOR THE ATTACHMENT OF THE VERTICAL STABILIZERS WERE FOUND TO BE INCORRECTLY LOCMay 27, 2006 · Robsin R44 · Rotorcraft Tail BoomSDR CA060523004Buckle · cracked(CAN) METAL STRAP BETWEEN MOUNTING POINT AND BUCKLE IS CRACKED IN TWO. TIME ON THIS PART IS UNKNOWN. TAFT 5902 MFG HAS DEVELOPED A NEW SEAT BELT BUCKLE THAT REPLACES THE STAINLESS STEEL STRAP WITH A FABRIC STRAP. (TC NR 20060523004)May 12, 2006 · Robsin R44 · Flight Compartment EquipmentSDR CA060322008Starter · malfunctioned(CAN) AIRCRAFT FAILED TO START. STARTER WAS REMOVED AND A OVERHAULED UNIT WAS INSTALLED AND NO FURTHER DEFECTS WERE NOTED. STARTER JUST COME OUT OF A REPAIR, 20.5 HRS EARLIER FOR INTERMITTENT/ERRATIC OPERATION. (TC NR 20060322008)Mar 20, 2006 · Robsin R44 · Engine StarterSDR CA060307010Distributor Blk · worn(CAN) DURING A 500 HR INSPECTION FOUND DISTRIBUTOR BLOCK BUSHING WORN. THIS CAUSED THE GEAR TO WOBBLE. WHEN THE GEAR WOBBLED THE ELECTRODE MADE CONTACT WITH THE BLOCK TERMINALS. THIS CAUSED THE GEAR TO STRIP AND ELECTRODE TO BREAK. BUSHING POSSIBLY DID NOT HMar 6, 2006 · Robsin R44 · Magneto/DistributorSDR CA060307009Shaft · wornDURING A 500 HR MAG INSPECTION, FOUND SHAFT FOR THE ROTATING MAGNET WORN BEYOND LIMITS. BELIEVE SOMEONE HAD TRIED TO CHANGE THE COUPLING AND THEN COULD NOT PULL COUPLING OFF THE SHAFT. THE NUT WAS REINSTALLED, TIGHTEN AND NEW COTTER PIN INSTALLED, BUT FAILEDMar 6, 2006 · Robsin R44 · Magneto/DistributorSDR CA060301004Elt · weakDURING ANNUAL RECERTIFICATION, FOUND G SWITCH WEAK. ELT SENT BACK TO OVERHAUL FACILITY.Mar 1, 2006 · Robsin R44 · Emergency Locator BeaconSDR CA060301003Elt · weakDURING ANNUAL RECERTIFICATION, FOUND G SWITCH WEAK. ELT SENT BACK TO OVERHAUL FACILITY.Mar 1, 2006 · Robsin R44 · Emergency Locator BeaconSDR CA060306004Trim Switch · failed(CAN) TRIM SWITCH INTERMITTENT. REPLACED SWITCH. (TC NR 20060306004)Feb 28, 2006 · Robsin R44 · Stabilizer Control SystemSDR CA060310002Starter · weak(CAN) STARTER WOULD NOT TURN OVER ENGINE. TROUBLESHOOTING REVEALED A STARTER PROBLEM. STARTER WAS REPLACED, AND NO FURTHER DEFECTS WERE NOTED. (TC NR 20060310002)Feb 27, 2006 · Robsin R44 · Engine StarterSDR CA060228021Elt · malfunctionedDURING AN ANNUAL ELT RECERTIFICATION A FUNCTION CHECK OF THE G SWITCH WAS CARRIED OUT. IT WAS NOTED TO SET OFF PRIOR TO ITS REQUIRED SETTING (FAULTY G SWITCH). ELT HAS BEEN SENT BACK TO POINTER FOR REPAIR.Feb 10, 2006 · Robsin R44 · Emergency Locator Beacon
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