# Service difficulty reports: Lycoming O-360-J2A

A list on [Lycoming O-360-J2A](https://openairdocs.org/engine/lycoming-o-360-j2a.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 6 · 274 reports

- [SDR VT9R2026092400782](https://openairdocs.org/sdr/VT9R2026092400782.md): Pushrod · galled · Sep 24, 2026 · N925KM · Robsin R22BETAII · Reciprocating Engine Cylinder Section
  > THIS IS THE SECOND TIME WE HAVE HAD THIS PROBLEM SINCE WE RECEIVED IT NEW FROM THE ROBINSON HELICOPTER FACTORY ON 7/30/2026. DURING ITS FIRST 100HR INSPECTION WHILE PREFORMING LYCOMING SB-388, ALL 8 PUSH RODS AND ALL 8 ROCKER ARMS WERE FOUND TO HAVE THE SAME A
- [SDR V79R2026090600629](https://openairdocs.org/sdr/V79R2026090600629.md): Pushrod · scored · Aug 5, 2026 · N728TK · Robsin R22BETA · Reciprocating Engine Cylinder Section
  > THIS IS THE FOURTH FACTORY NEW AIRCRAFT WE HAVE RECEIVED IN A ROW FROM ROBINSON HELICOPTER CO WITH THIS ISSUE. ALL PUSHRODS AND ROCKER ARMS WERE FOUND TO BE SORED AT THE MATING SURFACE. PARTS HAVE SINCE BEEN SENT TO RHC AND WE ARE WAITING FOR REPLACEMENT PARTS
- [SDR V79R2026090600628](https://openairdocs.org/sdr/V79R2026090600628.md): Pushrod · scored · Jul 30, 2026 · N925KM · Robsin R22BETA · Reciprocating Engine Cylinder Section
  > THIS HELICOPTER IS THE THIRD FACTORY NEW AIRCRAFT WE RECEIVED FROM THE MANUFACTURER WITH THIS ISSUE. ALL THE ROCKER ARMS AND PUSH ROD CAPS WERE FOUND TO BE SCORED DURING A PRECAUTIONARY INSPECTION. BELOW IS WHAT WAS ENTERED INTO THE AIRCRAFT LOGBOOKS. "REMOVED
- [SDR 2026FA0000237](https://openairdocs.org/sdr/2026FA0000237.md): Bearing · brinelled · Mar 30, 2026 · N184SH · Robsin R22BETAII · Main Rotor Head
  > FOUND BOYH SPINDLE BEARING SETS BRINELLED, TSN: 775.4. NO OVER-SPEEDS
- [SDR 2026FA0000216](https://openairdocs.org/sdr/2026FA0000216.md): Bearing · brinelled · Mar 26, 2026 · N183LE · Robsin R22BETAII · Main Rotor Head
  > FOUND BOTH SPINDLE BEARING SETS BRINELLED, BEARING SETS / SPINDLES TSN: 247.7. NO OVER SPEEDS
- [SDR 2025FA0000714](https://openairdocs.org/sdr/2025FA0000714.md): Bearing · brinelled · Oct 15, 2025 · N184SH · Robsin R22BETAII · Main Rotor Blades
  > FOUND BOTH SPINDLE BEARING SETS P/NA159-3, TSN: 1113.0, BRINELLED. NO OVER SPEEDS.
- [SDR 2025FA0000715](https://openairdocs.org/sdr/2025FA0000715.md): Bearing · brinelled · Oct 15, 2025 · N184SH · Robsin R22BETAII · Main Rotor Blades
  > FOUND BOTH SPINDLE BEARINGS P/N A159-3, TSN: 1064.8, BRINELLED. NO OVER SPEEDS
- [SDR 2025FA0000716](https://openairdocs.org/sdr/2025FA0000716.md): Bearing · brinelled · Oct 15, 2025 · N115SH · Robsin R22BETAII · Main Rotor Blades
  > FOUND BOTH SPINDLE BEARINGS P/N A159-3, TSN: 1449.7 BRINELLED. NO OVER SPEEDS
- [SDR 2025FA0000717](https://openairdocs.org/sdr/2025FA0000717.md): Bearing · brinelled · Oct 15, 2025 · N147SH · Robsin R22BETAII · Main Rotor Blades
  > FOUND BOTH SPINDLE BEARINGS P/N A159-3, TSN: 1406.9 BRINELLED. NO OVER SPEEDS
- [SDR 2025FA0000700](https://openairdocs.org/sdr/2025FA0000700.md): Sheave · worn · Oct 10, 2025 · N150LE · Robsin R22BETAII · Main Rotor Drive System
  > UPPER ANODIZED SHEAVE WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY.
- [SDR 2025FA0000701](https://openairdocs.org/sdr/2025FA0000701.md): Sheave · worn · Oct 10, 2025 · N115LE · Robsin R22BETAII · Main Rotor Drive System
  > UPPER ANODIZED SHEAVE P/N A170-1 WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY P/N A018-1
- [SDR 2025FA0000706](https://openairdocs.org/sdr/2025FA0000706.md): Bearing · brinelled · Oct 10, 2025 · N183LE · Robsin R22BETAII · Main Rotor Blades
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3, TSN: 2122.6, BRINELLED, NO OVER SPEEDS
- [SDR 2026FA0000627](https://openairdocs.org/sdr/2026FA0000627.md): Pushrod · scored · Sep 12, 2025 · N223VA · Robsin R22 · Reciprocating Engine Cylinder Section
  > THIS HELICOPTER IS FACTORY NEW FROM MANUFACTUER AND THE SECOND HELICOPTER WE FOUND THIS SAME ISSUE ON. ALL OF THE ROCKER ARMS AND PUSHROD CAPS WERE FOUND TO HAVE SIGNIFICANT SCORING WHERE THE MAKE CONTACT WITH EACH OTHER DURING ITS FIRST 100HR INSPECTION WHILE
- [SDR 2025FA0000705](https://openairdocs.org/sdr/2025FA0000705.md): Bearing · brinelled · Sep 10, 2025 · N3040K · Robsin R22BETAII · Main Rotor Blades
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3, TSN: 221.3, BRINELLED
- [SDR 2025FA0000703](https://openairdocs.org/sdr/2025FA0000703.md): Bearing · brinelled · Feb 5, 2025 · N3040K · Robsin R22BETAII · Main Rotor Blades
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3. TSN: 120.1, BRINELLED
- [SDR 2025FA0000704](https://openairdocs.org/sdr/2025FA0000704.md): Bearing · brinelled · Feb 5, 2025 · N3040K · Robsin R22BETAII · Main Rotor Blades
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3. TSN: 120.1, BRINELLED
- [SDR 2025FA0000702](https://openairdocs.org/sdr/2025FA0000702.md): Bearing · brinelled · Oct 12, 2024 · N3040K · Robsin R22BETAII · Main Rotor Blades
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3, TSN: 1743.0, BRINELLED. NO OVER SPEEDS REPORTED
- [SDR 2025FA0000698](https://openairdocs.org/sdr/2025FA0000698.md): Sheave · worn · Sep 24, 2024 · N3040K · Robsin R22BETAII · Main Rotor Drive System
  > UPPER ANODIZED SHEAVE WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY.
- [SDR 2024FA0000710](https://openairdocs.org/sdr/2024FA0000710.md): Crosstube · cracked · Sep 12, 2024 · N3040K · Robsin R22BETAII · Main Landing Gear Attach Section
  > CRACKED AFT, LANDING GEAR CROSS TUBE AT STRUT CONNECTION. TSO: 1690.3
- [SDR 8HBR20240909065](https://openairdocs.org/sdr/8HBR20240909065.md): Bearing · broken · Sep 9, 2024 · N7148A · Robsin R22BETA · Magneto/Distributor
  > COIL TAB WAS BENT TOO FAR UP DURING MANUFACTURING INSTALLATION, WHICH CAUSED A DEEP ANGULAR DIVOT TO BE WORN IN THE COIL TAB BY THE DISTRIBUTOR BLOCK GEAR SINCE IT WAS NOT FLAT AGAINST THE GEAR. MAGNETO HAD NOT BEEN OPENED SINCE NEW AND THIS DAMAGE WAS DISCOVE
- [SDR 8HBR20240712063](https://openairdocs.org/sdr/8HBR20240712063.md): Bearing · broken · Jul 3, 2024 · N508AD · Robsin R22BETA · Magneto/Distributor
  > PILOTS EXPERIENCED ENGINE ROUGHNESS IN AIR. UPON LANDING, MAINTENANCE FOUND MAGNETO WAS DIFFICULT TO SPIN AND CLUNKY IN IT'S ROTATION, INDICITIVE OF BEARING FAILURE.
- [SDR 8HBR20240712064](https://openairdocs.org/sdr/8HBR20240712064.md): Coil · worn · Jun 25, 2024 · N924SH · Robsin R22BETA · Magneto/Distributor
  > MAGNETO COIL HIGH TENSION TAB WAS BENT TOO FAR UPWARDS DURING MANUFACTURING, TO THE POINT THAT THE TAB WAS CONTACTING THE DISTRIBUTOR BLOCK GEAR. AS A RESULT, A LARGE DIVOT WAS WORN INTO THE COIL TAB DUE TO THE ROTATION OF THE GEAR CONTACTING THE COIL TAB DURI
- [SDR 2024FA0000269](https://openairdocs.org/sdr/2024FA0000269.md): Crossover Tube · cracked · Mar 28, 2024 · N194LE · Robsin R22BETAII · Main Landing Gear
  > DURING 100HR INSPECTION FOUND BOTH, FWD & AFT LANDING GEAR CROSS TUBES P/N A241-3 CRACKED AT STRUT ATTACHMENT. FOUND ONE CROSS TUBE SAME P/N CRACKED APPX 12MO PRIOR.
- [SDR 2025FA0000708](https://openairdocs.org/sdr/2025FA0000708.md): Bearing · brinelled · Nov 25, 2023 · N115LE · Robsin R22BETAII · Main Rotor Blades
  > FOUND BOTH SPINDLE BEARING SETS P/N A159-3, TSN: 730.4, BRINELLED
- [SDR YV3R2023120100591](https://openairdocs.org/sdr/YV3R2023120100591.md): Actuator · defective · Nov 20, 2023 · Robsin R22BETAII · Main Rotor Drive System
  > CUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 DOES NOT RETRACT WHEN SWITCH IS TURNED TO THE OFF POSITION AFTER FLIGHT.
- [SDR YV3R2023112200587](https://openairdocs.org/sdr/YV3R2023112200587.md): Fanwheel · defective · Nov 11, 2023 · Robsin R22BETAII · Rotorcraft Cooling Fan System
  > CUSTOMER REPORTED FANWHEEL ASSEMBLY P/N: B174-1 BOLTS WERE LOOSE WITHIN 5.0 HOURS.
- [SDR YV3R2023120100589](https://openairdocs.org/sdr/YV3R2023120100589.md): Warning System · defective · Nov 11, 2023 · Robsin R22BETAII · Main Rotor Indicating System
  > CUSTOMER REPORTED WARNING UNIT ASSEMBLY, LOW RPM P/N: A569-5 WAS INOPERATIVE.
- [SDR 2023FA0000682](https://openairdocs.org/sdr/2023FA0000682.md): Bearing · brinelled · Oct 26, 2023 · N552LE · Robsin R22BETAII · Main Rotor Blades
  > IN FLIGHT VIBRATION. FOUND SPINDLE BEARINGS BRINELLED. NO OVER SPEEDS REPORTED. MRB P/N A016-6, S/N 6841 & S/N 6861. SPINDLE & BEARING ASSEMBLY P/N A158-3, S/N 2610 & S/N 2611. MRBS, SPINDLE & BEARING ASSY. TT / TSN: 284.9. REMOVED BRINELLED BEARING ASSEMBLIES
- [SDR 2025FA0000699](https://openairdocs.org/sdr/2025FA0000699.md): Sheave · worn · Oct 4, 2023 · N552LE · Robsin R22BETAII · Main Rotor Drive System
  > UPPER ANODIZED SHEAVE P/N A170-1 WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY P/N A018-1
- [SDR YV3R2023111500585](https://openairdocs.org/sdr/YV3R2023111500585.md): Gearbox · defective · Sep 29, 2023 · Robsin R22BETAII · Main Rotor Gearbox
  > CUSTOMER REPORTED MAIN ROTOR GEARBOX P/N: A006-6 WAS MAKING METAL.
- [SDR YV3R2023100200583](https://openairdocs.org/sdr/YV3R2023100200583.md): Controller · malfunctioned · Sep 14, 2023 · N6703S · Robsin R22BETAII · Engine Indicating System
  > CUSTOMER REPORTED GOVERNOR CONTROLLER ASSEMBLY P/N: B286-2 MALFUNCTIONED.
- [SDR 2023FA0000526](https://openairdocs.org/sdr/2023FA0000526.md): Bearing · brinelled · Sep 7, 2023 · N432LE · Robsin R22BETAII · Main Rotor Head
  > IN FLIGHT VIBRATION REPORTED. FOUND SPINDLE BEARINGS BRINELLED. NO OVER SPEEDS REPORTED. SPINDLE & BEARING ASSEMBLIES P/N A158-3, S/N 2636 & S/N 2637 REMOVED FROM MRBS P/N A016-6, S/N 6851 & S/N 6860. MRBS & SPINDLES TSN: 342.3
- [SDR 2023FA0000525](https://openairdocs.org/sdr/2023FA0000525.md): Rocker · damaged · Sep 6, 2023 · N3040K · Robsin R22BETAII · Engine (Reciprocating)
  > DURING ROUTINE MX LYCOMING SB388C (EXHAUST VALVE GUIDE INSPECTION) FOUND ALL LIFTERS P/N 15B26066, TAPPET SOCKETS P/N 15B21319, ROCKER ARMS P/N 17F19357, PUSH RODS P/N 15F28835-30 & PUSH RODS P/N 15F28835-29 TO HAVE MECHANICAL DAMAGE "HEAVY SCUFF - SCORING". L
- [SDR 2023FA0000462](https://openairdocs.org/sdr/2023FA0000462.md): Cylinder · unknown · Aug 21, 2023 · N115L · Robsin R22BETAII · Powerplant System
  > LYCOMING FACTORY OVERHAULED O-360-J2A. HIGH OIL CONSUMPTION, FOULED SPARK PLUGS, POWER LOSS. FOUND #2 CYLINDER TO HAVE STUCK RINGS. O-360-J2A, S/N: L-41989-36E, ETT: 5652.5, ETSO: 519.2. AT INSTALL, PERFORMED ENGINE BREAK-IN PER LYCOMING SI-1427C.
- [SDR 2023FA0000434](https://openairdocs.org/sdr/2023FA0000434.md): Bearing · damaged · Aug 18, 2023 · N194LE · Robsin R22BETAII · Main Rotor Blades
  > IN FLIGHT VIBRATION REPORTED. FOUND MRB SPINDLE BEARINGS BRINELLED. SPINDLE ASSEMBLIES P/N A005-15, SPINDLES P/N A158-3, S/N 2842 & S/N 2843, BEARING SETS P/N A159-3, S/N 2214106 & S/N 2214093. SPINDLES & BEARING SETS TSN: 435.8. NO OVERSPEEDS REPORTED
- [SDR 2023FA0000429](https://openairdocs.org/sdr/2023FA0000429.md): Pushrod · damaged · Aug 17, 2023 · N552LE · Robsin R22BETAII · Engine (Reciprocating)
  > DURING ROUTINE MX, LYCOMING SB388C (EXHAUST VALVE GUIDE INSPECTION). FOUND 7 OF 8 PUSH RODS, 7 OF 8 ROCKER ARMS, 7 OF 8 TAPPET SOCKETS & 7 OF 8 LIFTERS WITH MECHANICAL DAMAGE, "HEAVY SCUFF - SCORING". ALSO FOUND #3 CYLINDER WITH IMPROPERLY INSTALLED INTAKE VAL
- [SDR 2023FA0000427](https://openairdocs.org/sdr/2023FA0000427.md): Rocker · damaged · Aug 16, 2023 · N115L · Robsin R22BETAII · Engine (Reciprocating)
  > DURING ROUTINE MX, LYCOMING SB388C (EXHAUST VALVE GUIDE INSPECTION) FOUND 3 OF 4 EXHAUST PUSH RODS, ROCKER ARMS, TAPPET PLUNGERS & TAPPET SOCKETS TO HAVE MECHANICAL DAMAGE "HEAVY SCUFF - SCORING". LYCOMING FACTORY OVERHAULED O-360-J2A, S/N L-41989-36E, 7/20/20
- [SDR 2023FA0000366](https://openairdocs.org/sdr/2023FA0000366.md): Frame · broken · Jul 13, 2023 · N432LE · Robsin R22BETAII · Fuselage Main, Frame
  > BROKEN LOWER DIAGONAL STRUT ON LOWER L/H FRAME P/N A046-1 FOUND ON PRE-FLIGHT. FRAME P/N A046-1 OVERHAULED BY ROBINSON HELICOPTER COMPANY. FORM 8130-3, #191994, DATED 11/NOV/2022, W/O: #RO-191994. FRAME P/N A046-1 IS A ON CONDITION / 2200HR OVERHAUL ITEM.
- [SDR 2023FA0000294](https://openairdocs.org/sdr/2023FA0000294.md): Rocker · damaged · Jun 2, 2023 · N194LE · Robsin R22BETAII · Reciprocating Engine Cylinder Section
  > DURING ROUTINE MX, LYCOMING SB388C (EXHAUST VALVE GUIDE INSPECTION) FOUND 3 OF 4 EXHAUST ROCKER ARMS, PUSH RODS & LIFTER SOCKETS TO HAVE MECHANICAL DAMAGE "HEAVY SCUFF". LYCOMING FACTORY OVERHAULED, O-360-J2A, S/N L-41749-36E, ETT: 667.2, ETSO: 330.6
- [SDR 2023FA0000295](https://openairdocs.org/sdr/2023FA0000295.md): Pushrod · damaged · Jun 2, 2023 · N432LE · Robsin R22BETAII · Engine (Reciprocating)
  > DURING ROUTINE MX, LYCOMING SB388C (EXHAUST VALVE GUIDE INSPECTION) FOUND 4 OF 4 EXHAUST ROCKER ARMS, PUSH RODS & LIFTER SOCKETS TO HAVE MECHANICAL DAMAGE "HEAVY SCUFF". LYCOMING FACTORY OVERHAULED, O-360-J2A, S/N L-40659-36E, ETT: 2472.3, ETSO: 99.5
- [SDR YV3R2023061400569](https://openairdocs.org/sdr/YV3R2023061400569.md): Actuator · defective · May 18, 2023 · N938SH · Robsin R22BETAII · Main Rotor Drive System
  > CUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 STOPS AND STARTS WHEN UNDER LOW COMPRESSION.
- [SDR 8HBR20230520052](https://openairdocs.org/sdr/8HBR20230520052.md): Magneto · loose · May 16, 2023 · N983SH · Robsin R22BETA · Magneto/Distributor
  > THE LH MAGNETO WAS REMOVED FROM THE AIRCRAFT DUE TO INTERNAL TIMING SHIFT, WHILE THE TECHNICIAN WAS INSPECTING THE MAGNETO, IT WAS FOUND THAT THE ROTOR HAD EXCESSIVE AMOUNT OF SIDE TO SIDE MOVEMENT. THIS MAGNETO WILL BE SENT BACK TO THE ENGINE OVERHAULER UNDER
- [SDR YV3R2023063000573](https://openairdocs.org/sdr/YV3R2023063000573.md): Gearbox · defective · May 15, 2023 · Robsin R22BETAII · Tail Rotor Gearbox
  > CUSTOMER REPORTED GEARBOX P/N: B021-1 HAD VIBRATION, OUTPUT SHAFT HARD TO TURN, AND LEAKING.
- [SDR 2023FA0000249](https://openairdocs.org/sdr/2023FA0000249.md): Spindle · unknown · May 5, 2023 · N830J · Robsin R22BETA · Standard Practices/Structures
  > MR SPINDLES BRINELLED AFTER 171.4 HOURS. THIS IS THE SECOND TIME THIS HAS HAPPENED TO THIS HELICOPTER IN THE LAST 336 HOURS. WHEN OFF THE HELICOPTER THE SPINDLE IS SO HARD TO TURN THAT YOU HAVE TO HOLD THE BLADE DOWN WITH ONE HAND TO GET IT PAST ITS FIRST DETE
- [SDR 2023FA0000250](https://openairdocs.org/sdr/2023FA0000250.md): Ring Gear · damaged · May 5, 2023 · Robsin R22BETAII · Standard Practices/Structures
  > STARTER RING GEAR LOST TEN TEETH ON FIRST FEW START UPS. BOUGHT FROM AIR POWER INC. LOC/WHSE: 5O1 5104. CONTROL NUMBER 38171-38
- [SDR YV3R2023051000566](https://openairdocs.org/sdr/YV3R2023051000566.md): Actuator · defective · Apr 28, 2023 · Robsin R22BETAII · Main Rotor Drive System
  > CUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 SPRINGS ARE NOT WORKING.
- [SDR YV3R2023051000565](https://openairdocs.org/sdr/YV3R2023051000565.md): Controller · defective · Apr 26, 2023 · Robsin R22BETAII · Engine RPM Indicating System
  > CUSTOMER REPORTED GOVERNOR CONTROLLER ASSEMBLY P/N: B286-2 WAS DEFECTIVE.
- [SDR YV3R2023042700559](https://openairdocs.org/sdr/YV3R2023042700559.md): Warning Unit · defective · Apr 12, 2023 · N522SB · Robsin R22BETAII · Main Rotor Indicating System
  > CUSTOMER REPORTED WARNING UNIT ASSEMBLY, LOW RPM P/N: A569-5 LOW ROTOR HORN SOUND INOPERATIVE.
- [SDR YV3R2023042700556](https://openairdocs.org/sdr/YV3R2023042700556.md): Actuator · defective · Apr 5, 2023 · N476AT · Robsin R22BETAII · Main Rotor Drive System
  > CUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 OPERATES INTERMITTENTLY.
- [SDR YV3R2023042700555](https://openairdocs.org/sdr/YV3R2023042700555.md): Warning Unit · defective · Mar 30, 2023 · N313DD · Robsin R22BETAII · Main Rotor Indicating System
  > CUSTOMER REPORTED WARNING UNIT P/N: A569-5 WAS INOPERATIVE.

Next page: https://openairdocs.org/engine/lycoming-o-360-j2a/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 = 'O360J2A'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-o-360-j2a/reports

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