# Service difficulty reports: Robinson Helicopter R66

A list on [Robinson Helicopter R66](https://openairdocs.org/model/robinson-helicopter-r66.md).

Newest first. General aviation reporting is voluntary.

- [SDR EVGR2024040900002](https://openairdocs.org/sdr/EVGR2024040900002.md): Shackle · seized · Apr 9, 2024 · N66BP · Robsin R66 · Main Landing Gear
  > DURING PREFLIGHT INSPECTION, A PILOT NOTICED THAT THE LOWER LEFT LANDING GEAR ASSEMBLY MOUNTING BOLT (NAS6607-20) HAD BEEN TURNING. THIS BOLT MOUNTS THE LANDING GEAR CROSS TUBE TO THE LEFT FORWARD LANDING GEAR SHACKLE AND IS SPECIFIED TO BE TORQUED TO 66 FT-LB
- [SDR YV3R2023100200581](https://openairdocs.org/sdr/YV3R2023100200581.md): Wire Harness · malfunctioned · Sep 1, 2023 · N66YP · Robsin R66 · Engine Indicating System Wiring
  > CUSTOMER REPORTED HARNESS ASSEMBLY P/N: F049-012 MALFUNCTIONED, N1 INDICATOR FLUCTUATING DURING FLIGHT.
- [SDR YV3R2023082800577](https://openairdocs.org/sdr/YV3R2023082800577.md): Indicator · inoperative · Aug 16, 2023 · N5869H · Robsin R66 · Airspeed/Mach Indicator
  > CUSTOMER REPORTED AIRSPEED INDICATOR P/N: C599-2 WAS INOPERATIVE.
- [SDR YV3R2023063000574](https://openairdocs.org/sdr/YV3R2023063000574.md): Switch · defective · May 17, 2023 · Robsin R66 · Air Conditioning System
  > CUSTOMER REPORTED SWITCH ASSEMBLY P/N: D799-7 WAS INOPERATIVE.
- [SDR YV3R2023042700557](https://openairdocs.org/sdr/YV3R2023042700557.md): Cylinder · defective · Apr 10, 2023 · N466HR · Robsin R66 · Emergency Flotation Section
  > CUSTOMER REPORTED CYLINDER ASSEMBLY P/N: D679-3 PRESSURE GAGE INDICATES ZERO.
- [SDR 2022FA0000702](https://openairdocs.org/sdr/2022FA0000702.md): Governor · binding · Nov 18, 2022 · N806BG · Robsin R66 · Engine Controls
  > UPON PERFORMING INSPECTION FOUND POWER TURBINE GOVERNOR CONTROL ARM VERY STIFF TO MOVE THRU ITS RANGE. COMPARED TO ANOTHER PT GOVERNOR INSTALLED ON ITS SISTER SHIP, RANGE OF MOTION WAS SMOOTH AND UNRESTRICTED. WHILE THE GOVERNOR ONLY HAS 686.5 HOURS OF 2000 HO
- [SDR YV3R2022100700543](https://openairdocs.org/sdr/YV3R2022100700543.md): None · defective · Sep 8, 2022 · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED WARNING UNIT ASSEMBLY (LOW RPM) P/N: A569-11 LOW ROTOR WARNING LIGHT AND SOUND (AUDIO) CAME ON DURING THE FIRST FLIGHT.
- [SDR YV3R2022052600529](https://openairdocs.org/sdr/YV3R2022052600529.md): None · defective · May 3, 2022 · N10MW · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED WARNING UNIT ASSEMBLY P/N: A569-11 WAS INOPERATIVE.
- [SDR YV3R2022021000514](https://openairdocs.org/sdr/YV3R2022021000514.md): None · none · Dec 20, 2021 · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED WARNING UNIT ASSEMBLY (LOW RPM) P/N: A569-11 LOW RPM LIGHT NEVER WENT OUT. CORRECTION: UNIQUE CONTROL # YV3R2022021000514, 3B (MANUFACTURER): SHOULD BE "RROYCE"
- [SDR YV3R2022021000513](https://openairdocs.org/sdr/YV3R2022021000513.md): None · defective · Dec 20, 2021 · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED WARNING UNIT ASSEMBLY (LOW RPM) P/N: A569-11 LOW RPM LIGHT NEVER WENT OUT.
- [SDR YV3R2021092100495](https://openairdocs.org/sdr/YV3R2021092100495.md): Sensor · failed · Sep 16, 2021 · Robsin R66 · Fuel Flow Sensor
  > CUSTOMER REPORTED SENSOR ASSEMBLY P/N: G768-11 FAILURE.
- [SDR YV3R2021052800458](https://openairdocs.org/sdr/YV3R2021052800458.md): Warning Unit · defective · May 19, 2021 · N73PT · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED WARNING UNIT (LOW RPM) P/N: A569-11 WAS NOT FUNCTIONING CORRECTLY, LOW RPM LIGHT ILLUMINATES WITH HORN SOUNDING.
- [SDR YV3R2021020300429](https://openairdocs.org/sdr/YV3R2021020300429.md): Dual Tachometer · defective · Jan 29, 2021 · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED DUAL TACHOMETER ASSEMBLY P/N: F792-1 ROTOR RPM NEEDLE WAS ERRATIC.
- [SDR YV3R2020093000356](https://openairdocs.org/sdr/YV3R2020093000356.md): Dual Tachometer · defective · Sep 28, 2020 · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED DUAL TACHOMETER ASSEMBLY P/N: F792-1 INDICATES HIGH.
- [SDR YV3R2020092900355](https://openairdocs.org/sdr/YV3R2020092900355.md): Dual Tachometer · defective · Sep 24, 2020 · N801GT · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED DUAL TACHOMETER ASSEMBLY P/N: F792-1 NEEDLES STICK OCCASIONALLY DURING START-UP.
- [SDR YV3R2020091700348](https://openairdocs.org/sdr/YV3R2020091700348.md): Dual Tachometer · defective · Sep 14, 2020 · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED DUAL TACHOMETER ASSEMBLY P/N: F792-1 ROTOR NEEDLE WAS PEGGING FULL SCALE WITH POWER APPLIED.
- [SDR YV3R2020082900335](https://openairdocs.org/sdr/YV3R2020082900335.md): Push-Pull Rod · worn · Jul 16, 2020 · Robsin R66 · Tail Rotor Control System
  > CORRECTED (UNIQUE CONTROL #): CUSTOMER REPORTED PUSH-PULL TUBE P/N: C121-17 WAS WORN AT FORWARD GUIDE POSITION.
- [SDR YV3R2020082800335](https://openairdocs.org/sdr/YV3R2020082800335.md): Push-Pull Rod · worn · Jul 16, 2020 · Robsin R66 · Tail Rotor Control System
  > CUSTOMER REPORTED PUSH-PULL TUBE P/N: C121-17 WAS WORN AT FORWARD GUIDE POSITION.
- [SDR YV3R2020062700287](https://openairdocs.org/sdr/YV3R2020062700287.md): Tachometer · defective · Jun 15, 2020 · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED DUAL TACHOMETER P/N: F792-1 N2 NEEDLE IS PEGGED AT 100% WHEN ENGINE IS OFF.
- [SDR YV3R2020060100276](https://openairdocs.org/sdr/YV3R2020060100276.md): Sensor · intermittent · May 11, 2020 · Robsin R66 · Aircraft Fuel System
  > CUSTOMER REPORTED FUEL FLOW SENSOR P/N: G768-3 WAS INTERMITTENTLY FAILING.
- [SDR 2019FA0000398](https://openairdocs.org/sdr/2019FA0000398.md): Rod End · fatigued · Dec 9, 2019 · N660SM · Robsin R66 · Fuselage, Powerplant Attach Fittings
  > F101-4 ELASTOMERIC ROD ENDS ON LOWER ENGINE SUPPORT WELDMENT ARE SHOWING ELASTOMER FATIGUE AFTER 419 HOURS. WILL REPLACE ROD ENDS WITH NEW.
- [SDR 2019FA0000397](https://openairdocs.org/sdr/2019FA0000397.md): Rod End · fatigued · Dec 9, 2019 · N661SM · Robsin R66 · Fuselage, Powerplant Attach Fittings
  > F101-4 ELASTOMERIC ROD ENDS ON LOWER ENGINE SUPPORT WELDMENT ARE SHOWING ELASTOMER FATIGUE AFTER 486 HOURS. WILL REPLACE ROD ENDS WITH NEW.
- [SDR 2019FA0000396](https://openairdocs.org/sdr/2019FA0000396.md): Bulkhead · cracked · Dec 9, 2019 · N660SM · Robsin R66 · Fuselage Main, Bulkhead
  > CRACK IN F259-2 CABIN BULKHEAD PANEL NEAR RIGHT SIDE F020-1 UPPER FRAME ASSEMBLY ATTACHMENT HOLE. CRACK TRAVELS FROM 11 O'CLOCK TO 3 O'CLOCK POSITION THROUGH COUNTERSUNK RIVET HOLE. WILL REPAIR AREA BY INSTALLING ROBINSON HELICOPTER KI-234 R66 CABIN BULKHEAD
- [SDR 2019FA0000395](https://openairdocs.org/sdr/2019FA0000395.md): Bulkhead · cracked · Dec 9, 2019 · N661SM · Robsin R66 · Fuselage Main, Bulkhead
  > CRACK IN F259-2 CABIN BULKHEAD PANEL NEAR RIGHT SIDE F020-1 UPPER FRAME ASSEMBLY ATTACHMENT HOLE. CRACK TRAVELS FROM 11 O'CLOCK TO 3 O'CLOCK POSITION THROUGH COUNTERSUNK RIVET HOLE. WILL REPAIR AREA BY INSTALLING ROBINSON HELICOPTER KI-234 R66 CABIN BULKHEAD
- [SDR YV3R201911220214](https://openairdocs.org/sdr/YV3R201911220214.md): Sensor · defective · Nov 5, 2019 · N593KM · Robsin R66 · Standard Practices/Structures
  > CUSTOMER REPORTED SENSOR ASSEMBLY P/N: G768-3 IS DEFECTIVE.
- [SDR YV3R2019092400194](https://openairdocs.org/sdr/YV3R2019092400194.md): Flow Sensor · inoperative · Sep 10, 2019 · Robsin R66 · Fuel Flow Sensor
  > CUSTOMER REPORTED SENSOR ASSEMBLY P/N: G768-3 IS NOT WORKING.
- [SDR YV3R2019092400193](https://openairdocs.org/sdr/YV3R2019092400193.md): Flow Sensor · inoperative · Sep 10, 2019 · Robsin R66 · Fuel Flow Sensor
  > CUSTOMER REPORTED SENSOR ASSEMBLY P/N: G768-3 IN NOT WORKING.
- [SDR YV3R2019092400192](https://openairdocs.org/sdr/YV3R2019092400192.md): Flow Sensor · inoperative · Sep 10, 2019 · Robsin R66 · Fuel Flow Sensor
  > CUSTOMER REPORTED SENSOR ASSEMBLY P/N: G768-3 IS NOT WORKING.
- [SDR YV3R2019092400191](https://openairdocs.org/sdr/YV3R2019092400191.md): Horn · inoperative · Sep 10, 2019 · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED HORN ASSEMBLY P/N: B320-6 DOES NOT WORK.
- [SDR YV3R2019081920164](https://openairdocs.org/sdr/YV3R2019081920164.md): Tachometer · inaccurate · Aug 2, 2019 · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED DUAL TACHOMETER P/N: F792-1 N2 NEEDLE READS INCONSISTENT (4% LOW, OUT OF SPECIFICATIONS).
- [SDR 2020FA0000044](https://openairdocs.org/sdr/2020FA0000044.md): Shaft · cracked · Jul 18, 2019 · N800VK · Robsin R66 · Engine (Turbine/Turboprop)
  > DURING AN ANNUAL INSPECTION OF THE AIRFRAME AND 200 HR INSPECTION OF THE ENGINE, A CRACK IN THE SLINGER RING DISK OF THE ENGINE SHAFT WELDMENT WAS DISCOVERED. THE CRACK EMANATES FROM A MANUFACTURING HOLE IN THE SLINGER RING DISK AND MOVES TOWARDS THE CENTER W
- [SDR 2020FA0000043](https://openairdocs.org/sdr/2020FA0000043.md): Ring · cracked · Jul 18, 2019 · N800VK · Robsin R66 · Engine (Turbine/Turboprop)
  > DURING AN ANNUAL INSPECTION OF THE AIRFRAME AND 200HR INSPECTION OF THE ENGINE, A CRACK IN THE SLINGER RING DISK OF THE ENGINE SHAFT WELDMENT WAS DISCOVERED. THE CRACK ANIMATES FROM A MANUFACTURING HOLE IN THE SLINGER RING DISK AND MOVES TOWARDS THE CENTER WH
- [SDR CA190814007](https://openairdocs.org/sdr/CA190814007.md): Clamp · ruptured · Jul 17, 2019 · Robsin R66 · Starter-Generator
  > (CAN) INITIAL INSTALLATION OF STARTER/GENERATOR P/N: RR30000412, WITH ORIGINAL QAD CLAMP ALWAYS INSTALLED IN ACCORDANCE WITH MANUFACTURER RECOMMENDATIONS OPERATORS MAINTENANCE MANUAL 80-11-10-400-801. DURING THE FIRST ENGINE CRANK AFTER STARTER/GEN INSTALLATIO
- [SDR YV3R2019062700133](https://openairdocs.org/sdr/YV3R2019062700133.md): Bearing · defective · Jun 24, 2019 · Robsin R66 · Tail Rotor Drive Shaft
  > CUSTOMER REPORTED BEARING ASSEMBLY DUST SHIELD SPINS IN BEARING HOUSING.
- [SDR YV3R2019012200105](https://openairdocs.org/sdr/YV3R2019012200105.md): Warning Unit · inoperative · May 30, 2019 · Robsin R66 · Main Rotor Indicating System
  > CUSTOMER REPORTED LOW RPM WARNING UNIT P/N: A569-11 IS INOPERATIVE.
- [SDR CA190403018](https://openairdocs.org/sdr/CA190403018.md): Mount · cracked · Apr 3, 2019 · Robsin R66 · Battery Box Structure
  > (CAN) BATTERY MOUNTING SHELF PN G249-1 FOUND CRACKED AT CONTACT WITH BATTERY FWD AND AFT OUTBOARD CORNERS. (TC# 20190403018)
- [SDR YV3R2019012200060](https://openairdocs.org/sdr/YV3R2019012200060.md): Sensor · inoperative · Mar 22, 2019 · N446JS · Robsin R66 · Fuel Indicating System
  > AUXILIARY FUEL PUMP LIGHT FLASHES CONTINUOUSLY 15 SECONDS AFTER ACTUATION OF SWITCH.
- [SDR YV3R2019031800049](https://openairdocs.org/sdr/YV3R2019031800049.md): Tachometer · defective · Mar 13, 2019 · Robsin R66 · Main Rotor Indicating System
  > AFTER BEING INSPECTED, TECHNICIAN FOUND NEEDLES WERE STICKING.
- [SDR YV3R2019012200023](https://openairdocs.org/sdr/YV3R2019012200023.md): Exhaust Duct · cracked · Feb 15, 2019 · N166LW · Robsin R66 · Engine Collector/Tailpipe/Nozzle
  > CUSTOMER REPORTED ENGINE EXHAUST P/N: F169-1 WAS CRACKED.
- [SDR YV3R2019030500038](https://openairdocs.org/sdr/YV3R2019030500038.md): Flow Sensor · inoperative · Feb 2, 2019 · N566MB · Robsin R66 · Fuel Flow Sensor
  > CUSTOMER REPORTED FLOW SENSOR P/N: G768-3 WAS INOPERATIVE.
- [SDR 2019FA0000004](https://openairdocs.org/sdr/2019FA0000004.md): Spar · cracked · Dec 20, 2018 · Robsin R66 · Horizontal Stabilizer, Spar/Rib
  > MOUNTING BRACKETS LOOSE ON FRONT AND REAR SPARS.
- [SDR 2018FA0000527](https://openairdocs.org/sdr/2018FA0000527.md): Battery · leaking · Oct 31, 2018 · N658TG · Robsin R66 · Battery/Charger System
  > BATTERY LEAKS FROM AROUND TOP SEALING JOINT BEHIND POSITIVE POST. THIS IS THE THIRD HELICOPTER WITH CORROSION DAMAGE THAT WE HAVE FOUND CAUSED FROM A BATTERY OF THIS PN. RECOMMEND BOTH BATTERY AND HELICOPTER MFG GET TOGETHER AND CORRECT THE PROBLEM. THERE H
- [SDR 2018FA0000346](https://openairdocs.org/sdr/2018FA0000346.md): Battery · leaking · Aug 23, 2018 · N573DF · Robsin R66 · Battery/Charger System
  > MECHANIC FOUND SIGNS OF LEAKAGE AND CORROSION BEHIND LOWER AFT PASSENGER SEAT BULKHEAD, SEAT FRAME AREA, BATTERY SHELF, BAGGAGE COMPARTMENT FLOOR. THE AIRCRAFT BATTERY IS MOUNTED ON ITS SIDE CAUSING THE ACID TO LEAK FROM SEALED BATTERY SERVICE PORTS.
- [SDR 2017FA0000384](https://openairdocs.org/sdr/2017FA0000384.md): Bladder · leaking · Mar 3, 2017 · N460BG · Robsin R66 · Fuel Storage
  > FUEL BLADDER LEAKS FROM OVER 15 LEAKS, FUEL BLADDER MATERIAL ACTUALLY POROUS UNDER AIR PRESSURE TEST. FUEL WEEPING FROM ALL 6 SIDES OF THE TANK. FOUND LEAK DURING ANNUAL INSPECTION.
- [SDR CA140627013](https://openairdocs.org/sdr/CA140627013.md): Turbine Wheel · failed · Jun 26, 2014 · Robsin R66 · Turbine Section
  > (CAN) DURING FLIGHT, THE PILOT HEARD AN ABNORMAL NOISE, SAW N1 AND N2 FLUCTUATIONS AND OBSERVED A CHIP LIGHT. HE LANDED IMMEDIATELY USING ENGINE POWER. THE HELICOPTER WAS TRANSPORTED FOR TROUBLESHOOTING. THE OIL SYS WAS FLUSHED. DURING THE SUBSEQUENT GROUN
- [SDR CA140509006](https://openairdocs.org/sdr/CA140509006.md): Nut · cracked · May 6, 2014 · Robsin R66 · Main Landing Gear
  > (CAN) DURING FIRST 100 HR INSPECTION, SPOTTED GAP, VISIBLE BOLT SHANK, BETWEEN AIRFRAME MOUNTED SPHERICAL BEARING AND F239-2, RT AFT LANDING GEAR STRUT ASSY. FURTHER INSPECTION REQUIRED REMOVING STRUT FAIRING, AND BONDED RAIN CAP TO GAIN ACCESS TO THE NUT. F
- [SDR CA131022003](https://openairdocs.org/sdr/CA131022003.md): Swashplate · damaged · Jul 31, 2013 · Robsin R66 · Main Rotor Mast/Swashplate
  > (CAN) DURING A 100 HR INSPECTION, WE HAVE FOUND THAT 2 ALLEN BOLTS FROM THE SWASHPLATE WAS CHAFING ON THE SLIDER TUBE. THE DAMAGE WAS LOCATED ON THE FORWARD FACE OF THE TUBE. FOUND THAT THIS CONDITION HAPPEN DURING FLIGHT CONTROLS CHECK WITH THE COLLECTIVE U

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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 = 'R66'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/robinson-helicopter-r66/reports

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