# Service difficulty reports: Lycoming O-320-B2C

A list on [Lycoming O-320-B2C](https://openairdocs.org/engine/lycoming-o-320-b2c.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 4 · 171 reports

- [SDR YV3R2022111700546](https://openairdocs.org/sdr/YV3R2022111700546.md): Warning Unit · inoperative · Oct 18, 2022 · Robsin R22 · Main Rotor Indicating System
  > CUSTOMER REPORTED WARNING UNIT ASSEMBLY P/N: A569-5 WAS INOPERATIVE OUT OF THE BOX.
- [SDR YV3R2022050400527](https://openairdocs.org/sdr/YV3R2022050400527.md): None · defective · Apr 22, 2022 · N6240 · Robsin R22 · Main Rotor Indicating System
  > CUSTOMER REPORTED WARNING UNIT ASSEMBLY (RPM) P/N: A569-5 WAS INOPERATIVE.
- [SDR YV3R2021062200465](https://openairdocs.org/sdr/YV3R2021062200465.md): Sheave · corroded · May 27, 2021 · Robsin R22 · Main Rotor Drive System
  > CUSTOMER RETURNED LOWER SHEAVE P/N: A493-1. AFTER ENGINEERING EVALUATION, CORROSION WAS DISCOVERED UNDER PLATING.
- [SDR YV3R2021090100489](https://openairdocs.org/sdr/YV3R2021090100489.md): Sheave · defective · May 27, 2021 · N969TA · Robsin R44 · Main Rotor Drive System
  > CUSTOMER SHEAVE, LOWER P/N: A493-1 RECEIVED FOR WARRANTY. AFTER EVALUATION, BASE MATERIAL (ALUMINUM) HAD CORROSION, WHICH CAUSED BUBBLING BETWEEN ALUMINUM AND METALIZED COATING MATERIAL.
- [SDR YV3R2020121500405](https://openairdocs.org/sdr/YV3R2020121500405.md): Motor · failed · Dec 9, 2020 · N8038A · Robsin R22BETA · Main Rotor Drive System
  > CUSTOMER REPORTED GEARMOTOR ASSEMBLY P/N: A051-2 BLOWS CIRCUIT PROTECTION FUSE.
- [SDR YV3R2020072400303](https://openairdocs.org/sdr/YV3R2020072400303.md): Tachometer · defective · Jul 14, 2020 · Robsin R22BETA · Main Rotor Indicating System
  > CUSTOMER REPORTED DUAL TACHOMETER P/N: A792-4 ENGINE RPM IS UNDER READING (LOW).
- [SDR 2020FA0000329](https://openairdocs.org/sdr/2020FA0000329.md): Oil Filter · defective · Jun 26, 2020 · N2331X · Robsin R22 · Engine Oil Distribution (Airframe Furnished)
  > PILOT REPORTED LOW OIL PRESSURE DURING THE FLIGHT. WE ADJUSTED THE OIL PRESSURE RELIEF VALVE. THE OIL PRESSURE WAS NORMAL AT THE BEGINNING OF THE NEXT FLIGHT THEN OIL PRESSURE DROPPED TO 55 PSI. AFTER REPLACING THE OIL FILTER OIL PRESSURE TURNED BACK TO NOR
- [SDR 2020FA0000328](https://openairdocs.org/sdr/2020FA0000328.md): Oil Filter · defective · Jun 11, 2020 · N80156 · Robsin R22 · Engine Oil Distribution (Airframe Furnished)
  > PILOT REPORTED LOW OIL PRESSURE ON THE SECOND FLIGHT AFTER THE 100 HOURS INSPECTION. OIL FILTER WAS REMOVED, CUT AND INSPECTED. UPON INSPECTION, IT WAS NOTED THAT THERE IS NO OIL IN THE CENTER PART OF THE OIL FILTER. A NEW OIL FILTER WAS INSTALLED AND PERFO
- [SDR YV3R201911220215](https://openairdocs.org/sdr/YV3R201911220215.md): Tachometer · defective · Nov 12, 2019 · Robsin R22BETA · Main Rotor Indicating System
  > CUSTOMER REPORTED DUAL TACHOMETER P/N: A792-4 ROTOR NEEDLE IS NOT FUNCTIONING.
- [SDR CA190725013](https://openairdocs.org/sdr/CA190725013.md): Wire · broken · Jul 24, 2019 · Robsin R22BETA · Mixture Control
  > (CAN) MIXTURE CABLE INNER WIRE BROKE OFF ABOUT 1 FOOT AHEAD OF MIXTURE LEVER ON CARBURETOR. (TC# 20190725013)
- [SDR CA190725010](https://openairdocs.org/sdr/CA190725010.md): Cable · damaged · Jul 23, 2019 · Robsin R22BETA · Mixture Control
  > (CAN) MIXTURE CABLE INNER WIRE BROKE OFF ABOUT 1 FOOT AHEAD OF MIXTURE LEVER ON CARBURETOR (TC# 20190725010)
- [SDR YV3R2019080220152](https://openairdocs.org/sdr/YV3R2019080220152.md): Tachometer · inoperative · Jul 17, 2019 · Robsin R22BETA · Main Rotor Indicating System
  > CUSTOMER REPORTED DUAL TACHOMETER P/N: A792-4 ROTOR RPM NEEDLE GOES OFF SCALE WHEN POWER IS APPLIED.
- [SDR YV3R2019062120129](https://openairdocs.org/sdr/YV3R2019062120129.md): Tachometer · inoperative · Jun 13, 2019 · Robsin R22BETA · Main Rotor Indicating System
  > CUSTOMER REPORTED DUAL TACHOMETER MAIN ROTOR NEEDLE IS INOPERATIVE ON GROUND RUN.
- [SDR YV3R2019012200124](https://openairdocs.org/sdr/YV3R2019012200124.md): Riser · cracked · Jun 10, 2019 · N471AT · Robsin R22BETA · Reciprocating Engine Cylinder Section
  > CUSTOMER REPORTED CYLINDER #3 RISER CRACKED AND BROKE.
- [SDR YV3R2019012200081](https://openairdocs.org/sdr/YV3R2019012200081.md): Governor · failed · May 10, 2019 · N114VG · Robsin R22BETA · Engine RPM Indicating System
  > CUSTOMER REPORTED GOVERNOR CONTROLLER ASSEMBLY P/N: B286-2 FAILED.
- [SDR YV3R2019012200064](https://openairdocs.org/sdr/YV3R2019012200064.md): Clutch Actuator · inoperative · Apr 3, 2019 · Robsin R22BETA · Main Rotor Drive System
  > CUSTOMER REPORTED COLUMN SPRINGS NOT ENGAGING OR DISENGAGING SIMULTANEOUSLY.
- [SDR YV3R2019021300022](https://openairdocs.org/sdr/YV3R2019021300022.md): Clutch Actuator · malfunctioned · Feb 11, 2019 · N114VG · Robsin R22BETA · Engine/Transmission Coupling
  > CUSTOMER REPORTED CLUTCH ACTUATOR MOTOR IS SURGING AND RUNNING VERY SLOW.
- [SDR 8HBR20190118020](https://openairdocs.org/sdr/8HBR20190118020.md): Breaker Points · mismanufactured · Jan 18, 2019 · Robsin R22BETA · Magneto/Distributor
  > COATING ON POINT'S ARMS FROM FACTORY PREVENTING CONTINUITY WHEN POINTS CLOSED.
- [SDR CA141128004](https://openairdocs.org/sdr/CA141128004.md): Gasket · failed · Nov 27, 2014 · Robsin R22MARINER · Engine Air Intake System
  > (CAN) RE-USEABLE AIR FILTER, PN B771-1, REV C, REMOVED FROM ENGINE DURING INSPECTION. FELT GASKET FOUND UNATTACHED TO FRAME OF FILTER. AVGAS HAS EATEN AWAY AT ADHESIVE ATTACHING GASKET TO FRAME. POSSIBILITY OF GASKET GETTING SUCKED INTO INTAKE OF ENGINE.
- [SDR CA140130006](https://openairdocs.org/sdr/CA140130006.md): Block · cracked · Jan 24, 2014 · Robsin R22BETA · Magneto/Distributor
  > (CAN) BLOCK FOUND WITH 2 OF THE HOLD DOWN SCREW HOLES WITH CRACKS.
- [SDR CA140130007](https://openairdocs.org/sdr/CA140130007.md): Block · cracked · Jan 24, 2014 · Robsin R22BETA · Magneto/Distributor
  > (CAN) BLOCK FOUND CRACKED WHERE THE BUSHING IS INSTALLED IN THE BLOCK.
- [SDR CA131025001](https://openairdocs.org/sdr/CA131025001.md): Gearbox · making metal · Oct 24, 2013 · Robsin R22BETA · Tail Rotor Gearbox
  > (CAN) DURING GROUND RUN, PILOT REPORTED T/R CHIP LIGHT. T/R GEARBOX OIL DRAINED AND CHIP DETECTOR INSPECTED. FOUND LARGE QTY OF FERROUS METAL FLAKES ON DETECTOR. T/R GEARBOX REMOVED FROM SERVICE AND SENT TO MFG FOR REPAIR.
- [SDR CA121010007](https://openairdocs.org/sdr/CA121010007.md): Swashplate · worn · Oct 10, 2012 · Robsin R22BETA · Main Rotor Mast/Swashplate
  > (CAN) TTAF 4149.5, ROD END PAL NUT WEARING INTO THE SWASH-PLATES EAR. AN ENGINEER HAD INDICATED THAT HE FOUND 2 SEPARATE HELICOPTERS WITH THE PAL NUT ON 1 OF THE 2 FORWARD VERTICAL PUSH-PULL TUBES WEARING INTO THE LOWER SIDE OF THE SWASH-PLATE EAR. WE DID A
- [SDR CA121010003](https://openairdocs.org/sdr/CA121010003.md): Oil Cooler · leaking · Sep 12, 2012 · Robsin R22BETA · Engine Oil Cooler
  > (CAN) THE PILOT NOTICED OIL OVER THE BACK AND RT SIDE OF THE ENGINE AFTER FLYING FOR AN HOUR. THIS HAS BEEN A RECURRING OIL LEAK, WHICH COULD NOT BE FOUND WITH THE ENGINE NOT OPERATING. DURING GROUND IDLE OIL WAS NOTICED TO BE COMING OUT THE SIDE OF THE OIL
- [SDR CA110517004](https://openairdocs.org/sdr/CA110517004.md): Yoke · worn · May 16, 2011 · Robsin R22BETA · Main Rotor Gearbox
  > MAIN ROTOR GEARBOX YOKE FOUND LOOSE ON 100HR INSPECTION. FLEX PLATE WAS REMOVED TO REVEAL NUT AND COTTER PIN INTACT. WASHER UNDER NUT HAD A STEP WORN IN IT. BACK OF NUT WAS FOUND TO HAVE WEAR. YOKE HAS VISIBLE STEPS WORN IN IT. ADVISED RHC. THEY REQUESTED
- [SDR CA091106001](https://openairdocs.org/sdr/CA091106001.md): Jackshaft · cracked · Nov 4, 2009 · Robsin R22BETA · Rotorcraft Flight Control
  > (CAN) DURING FLIGHT, PILOT FOUND THE CONTROLS TO BECOME UNRESPONSIVE (LOSS OF FULL SENSE OF OPERATION). FAR MORE FWD CYCLIC WAS REQUIRED AND HIGHER COLLECTIVE PITCH THEN NORMAL. PILOT LANDED THE ACFT WITHOUT INCIDENT. ANOTHER ACFT WITH AN AME WAS SENT TO THIS
- [SDR B8M2007F00001](https://openairdocs.org/sdr/B8M2007F00001.md): Support · broken · Dec 5, 2007 · N805EH · Robsin R22BETA · Fuselage Miscellaneous Structure
  > TRAINING FLIGHT, CFI AND STUDENT ONBOARD. CONDUCTING HOVER AUTOROTATION TRAINING. ON THIRD HOVER AUTOROTATION, AS HELICOPTER SETTLED ON GROUND, STUDENT WAS INPUTTING RT PEDAL TO COMPENSATE FOR LOSS OF TORQUE WHEN A LOUD (SNAP) WAS HEARD FROM THE PILOT SIDE T
- [SDR 2007FA0001081](https://openairdocs.org/sdr/2007FA0001081.md): Oil Cooler · cracked · Sep 26, 2007 · N97CP · Robsin R22ALPHA · Engine Oil Cooler
  > AT A 100 HR INSPECTION ON HELICOPTER, INSTALLED A NEW OIL COOLER REPLACING THE ORIGINAL OIL COOLER. (NOVEMBER 5, 2007, HOUR METER 1042) WHILE FLYING, NOTICED THE OIL TEMPERATURE RISING AND THE OIL PRESSURE DROPPING. MADE AN UNSCHECULED LANDING AND DISCOVERED
- [SDR CA070704005](https://openairdocs.org/sdr/CA070704005.md): Door Frame · cracked · Jun 27, 2007 · Robsin R22BETA · Passenger/Crew Doors
  > (CAN) DURING VISUAL INSPECTION TO COMPLY WITH AWD 2005-16-05 LT DOOR ASSY WAS FOUND CRACKED. FUTHER INSPECTION OF THE TECH-TOOL DOOR AND FRAME REVEALED ADDITIONAL CRACKS. DOOR FOUND TO BE U/S AND REMOVED FROM A/C. (TC NR 20070704005)
- [SDR CA070704006](https://openairdocs.org/sdr/CA070704006.md): Frame · cracked · Jun 27, 2007 · Robsin R22BETA · Passenger/Crew Doors
  > (CAN) DURING VISUAL INPECTION TO COMPLY WITH AWD 2005-16-05 RT DOOR ASSY WAS FOUND CRACKED. FUTHER INPECTION OF THE TECH-TOOL DOOR AND FRAME ASSY REVEALED ADDITIONAL CRACKS. DOOR FOUND TO BE UNSERVICEABLE AND REMOVED FROM A/C. (TC NR 20070704006)
- [SDR CA070515004](https://openairdocs.org/sdr/CA070515004.md): Retainer · broken · May 2, 2007 · Robsin R22BETA · Reciprocating Engine Cylinder Section
  > (CAN) DURING 25 HOUR INSPECTION, FOUND (NR 2), (A) CYLINDERS IB LOWER BAFFLE RETAINER HEAD BROKEN AND ITS SPRING MISSING, THUS AFT BAFFLE IN CONTACT WITH NR 2 CYLINDER OIL RETURN LINE CAUSED DEEP WEAR ON OIL LINE. NO LEAK FOUND AT THAT TIME. RETAINER, SPRING A
- [SDR 2006FA0000975](https://openairdocs.org/sdr/2006FA0000975.md): Distributor Blk · failed · Oct 3, 2006 · N8280J · Robsin R22BETA · Magneto/Distributor
  > DURING 500 H0UR INSPECTION AND SERVICE THE DISTRIBUTOR BLOCK BRONZE BUSHING WAS FOUND TO BE BROKEN AND FREE TO MOVE AROUND.
- [SDR 2006FA0000729](https://openairdocs.org/sdr/2006FA0000729.md): Adapter · broken · Jul 14, 2006 · N185MH · Robsin R22BETA · Reciprocating Engine Oil System
  > WHILE CHANGING OIL FILTER DURING ROUTINE 100 HR INSPECTION, OIL FILTER ADAPTER CENTER THREADED SHAFT BROKE OFF LEAVING HALF SHAFT INSIDE ADAPTER AND OTHER HALF THREADED INTO OIL FILTER. THIS OCCURRED WITH MINIMAL ROTATIONAL TORQUE BEING APPLIED. INSPECTION O
- [SDR CA060712004](https://openairdocs.org/sdr/CA060712004.md): Retainer · broken · Jul 6, 2006 · Robsin R22BETA · Reciprocating Engine Cylinder Section
  > (CAN) NR 2 AND NR 4 CYLINDER LOWER BAFFLE IB RETAINER BROKE CAUSING BAFFLE CONTACTING NR 2 CYLINDER`S OIL RETURN LINE THUS CHAFED OIL LINE AND OIL SEEPAGE EVIDENT DURING DAILY CHECK. NR 2 AND NR 4 CYLINDER BAFFLE RETAINER P/N A4871 (TC NR 20060712004)
- [SDR CA060224007](https://openairdocs.org/sdr/CA060224007.md): Switch · failed · Feb 16, 2006 · Robsin R22BETA · Emergency Locator Beacon
  > WHEN THE PILOT ACTIVATE THE ELT REMOTE SWITCH IN THE CABIN, THE ELT FAIL TO ACTIVATE. REPLACED ELT.
- [SDR AU510001576](https://openairdocs.org/sdr/AU510001576.md): Arm · worn · Dec 12, 2005 · Robsin R22 · Main Rotor Mast/Swashplate
  > MAIN ROTOR UPPER SCISSOR ARM WORN IN AREA OF SWASHPLATE BEARING ATTACHMENT. BOLT ALSO WORN.
- [SDR AU510002172](https://openairdocs.org/sdr/AU510002172.md): Filter · mismanufactured · Nov 11, 2005 · Robsin R22ALPHA · Reciprocating Engine Oil System
  > (AUS) ENGINE OIL FILTER ELEMENT INCORRECTLY BONDED. CARDBOARD FILTER SEAM WAS ONLY JUST HOLDING TOGETHER. (CASA NR 510002172)
- [SDR CA060306014](https://openairdocs.org/sdr/CA060306014.md): Switch · failed · Oct 28, 2005 · Robsin R22BETA · Interphone/Passenger Announcement (PA) System
  > (CAN) TRIM INTERMITTENT. REPLACED SWITCH. (TC NR 20060306014)
- [SDR AU510001906](https://openairdocs.org/sdr/AU510001906.md): Blade · distorted · Oct 9, 2005 · Robsin R22ALPHA · Main Rotor Blades
  > (AUS) MAIN ROTOR BLADE BENT. BEND LOCATED IN AREA APPROXIMATELY 200MM (7.8IN) OB OF THE BLADE DOUBLER AND RUNNING ALONG THE CHORDWISE AXIS. A STRINGLINE WAS RUN DOWN THE LEADING EDGE OF THE BLADE AND THE DEVIATION FROM THIS AT THE BEND WAS 19MM TO 20MM (0.74I
- [SDR AU510001459](https://openairdocs.org/sdr/AU510001459.md): Drive Belt · distorted · Jul 6, 2005 · Robsin R22BETA · Engine/Transmission Coupling
  > (AUS) ENGINE TO TRANSMISSION DRIVE SYSTEM `V` BELTS STRETCHED.(OTHER CAUSE: MATERIAL) (CASA 510001459)
- [SDR CA050105002](https://openairdocs.org/sdr/CA050105002.md): Distributor Gear · broken · Dec 21, 2004 · Robsin R22BETA · Magneto/Distributor
  > (CAN) UNABLE TO START ENGINE. FOUND TWO PLASTIC TEETH MISSING FROM DISTRIBUTOR GEAR.
- [SDR CA040706005](https://openairdocs.org/sdr/CA040706005.md): Blade · cracked · Jun 17, 2004 · Robsin R22BETA · Engine Cooling System
  > CRACKED BLADE. REPLACED FAN WHEEL.
- [SDR CA040706004](https://openairdocs.org/sdr/CA040706004.md): Cable · failed · Jun 16, 2004 · Robsin R22BETA · Fuel Control/Reciprocating Engines
  > (CAN) CARB HEAT CABLE BROKEN. REPLACED CARB HEAT CABLE.
- [SDR CA040706003](https://openairdocs.org/sdr/CA040706003.md): Magneto · failed · Jun 14, 2004 · Robsin R22BETA · Magneto/Distributor
  > HIGH ENGINE RPM. REPLACED MAGNETO.
- [SDR AUS20040506](https://openairdocs.org/sdr/AUS20040506.md): Blade · corroded · Jun 12, 2004 · Robsin R22BETA · Main Rotor Blades
  > (AUS) MAIN ROTOR BLADE CORRODED ON BLADE TIP.
- [SDR AUS20040277](https://openairdocs.org/sdr/AUS20040277.md): Drive Belt · damaged · Apr 20, 2004 · Robsin R22ALPHA · Engine/Transmission Coupling
  > (AUS) ENGINE TO TRANSMISSION DRIVE BELTS STRETCHED AND WORN.
- [SDR AUS20040286](https://openairdocs.org/sdr/AUS20040286.md): Gascolator · contaminated · Apr 8, 2004 · Robsin R22BETA · Aircraft Fuel Distribution System
  > (AUS) ENGINE FAILED. INVESTIGATION FOUND WATER AND RUST IN THE AIRCRAFT FUEL FILTER GASCOLATOR AND CARBURETOR.
- [SDR AUS20040119](https://openairdocs.org/sdr/AUS20040119.md): Drive Belt · distorted · Feb 24, 2004 · Robsin R22BETA · Engine/Transmission Coupling
  > (AUS) ENGINE TO TRANSMISSION DRIVE BELTS STRETCHED.
- [SDR AUS20031236](https://openairdocs.org/sdr/AUS20031236.md): Gearbox · contaminated · Dec 2, 2003 · Robsin R22BETA · Main Rotor Gearbox
  > (AUS) FOLLOWING STRANGE NOISES ON RUNDOWN THE MAIN ROTOR GEARBOX WAS INSPECTED. THE MAIN ROTOR GEARBOX AND CHIP DETECTOR WERE FOUND TO BE CONTAMINATED WITH METAL. CHIP DETECTOR DID NOT ILLUMINATE CHIP LIGHT BUT WAS TESTED SERVICEABLE.
- [SDR AUS20031203](https://openairdocs.org/sdr/AUS20031203.md): Magneto · unserviceable · Nov 11, 2003 · Robsin R22BETA · Magneto/Distributor
  > (AUS) RT MAGNETO HOUSING SEPARATING DUE TO LOOSE RETAINING SCREWS. INTERNAL INSPECTION ALSO FOUND THAT THE ROTATING MAGNET HAD CONTACTED THE HOUSING CAUSING DAMAGE TO BOTH ITEMS.

Next page: https://openairdocs.org/engine/lycoming-o-320-b2c/reports.md?page=2

## 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 engine_model_key = 'O320B2C'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-o-320-b2c/reports

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