# Service difficulty reports: Lycoming HIO-360-D1A

A list on [Lycoming HIO-360-D1A](https://openairdocs.org/engine/lycoming-hio-360-d1a.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 78 reports

- [SDR 2026F00166](https://openairdocs.org/sdr/2026F00166.md): Support Frame · cracked · Jul 28, 2026 · N776LH · Hughes 269C · Fuselage Main, Structure
  > LEFT AFT AIRFRAME CLUSTER FITTING THAT ATTACHES TO REAR CROSSMEMBER, LANDING GEAR, AND TAIL-BOOM SUPPORT STRUT WAS FOUND CRACKED DURING A VISUAL PREFLIGHT INSPECTION. AIRCRAFT IS GROUNDED AND HAS NOT BEEN RETURNED TO SERVICE. FRAME REPLACEMENT IS REQUIRED. AIR
- [SDR 2014FA0000546](https://openairdocs.org/sdr/2014FA0000546.md): Magneto · failed · Sep 13, 2014 · N645KA · Hughes 269C · Magneto/Distributor
  > COMPLETE RT MAGNETO IGNITION FAILURE WITH NO OUTPUT. MAGNETO FAILED PRIOR TO SCHEDULED INSPECTION.
- [SDR BY8S2014092600566](https://openairdocs.org/sdr/BY8S2014092600566.md): Magneto · failed · Sep 13, 2014 · N645KA · Hughes 269C · Magneto/Distributor
  > COMPLETE RT MAGNETO IGNITION FAILURE/NO OUTPUT. MAGNETO FAILED PRIOR TO SCHEDULED HOUR INSPECTION.
- [SDR FAA20140910000001](https://openairdocs.org/sdr/FAA20140910000001.md): Sensor · detached · Aug 23, 2014 · N34LB · Hughes 269C · Turbine Engine Oil System
  > THE ENGINE STOPPED DUE TO LACK OF OIL. THE OIL TEMPERATURE SENSOR, AND CRUSH WASHER WERE FOUND HANGING BY ITS ELECTRICAL CONNECTOR INSIDE THE ENGINE COMPARTMENT. A REMOTE FILTER SYSTEM WAS INSTALLED ON THE ACFT 1298 HOURS PRIOR TO THE INCIDENT.
- [SDR 2011FA0000183](https://openairdocs.org/sdr/2011FA0000183.md): Tail Rotor · damaged · Mar 18, 2011 · N958CP · Hughes 269C · Tail Rotor Drive System
  > ODOR OF BURNING LUBRICANT, EXCESSIVE VIBRATION, FORCED A SUCCESSFUL OFF AIRPORT LANDING. FOUND AFT "H" FRAME BEARING, PN 269A5050-56, SEIZED, OVERHEATED, DRIVESHAFT JAMMED FWD AGAINST BEARING, AFT BEARING SUPPORT BROKEN OFF FRAME, PN 269A5573-13, AND MISSING.
- [SDR 2010FA0001006](https://openairdocs.org/sdr/2010FA0001006.md): Pin · worn · Sep 17, 2010 · N8363C · Hughes 269C · Fuel Storage
  > DURING 200 HR INSP WEAR MARKS WERE FOUND ON THE BOTTOM OF BOTH FUEL TANKS, CAUSED BY ATTACH PIN PN MS20392-2C47 USED ON STRAP ASSY. PN 269A8329-23. DETAILED INSP FOUND WEAR TO BE CAUSED BY INSUFFICIENT PAD MATERIAL INSTALLED ON STRAP ALLOWING CONTACT BETWEEN T
- [SDR NDF2009F00001](https://openairdocs.org/sdr/NDF2009F00001.md): Alternator · failed · Aug 31, 2009 · N7511A · Scwzer 269D · DC Generator-Alternator
  > ALTERNATOR FAILED IN FLIGHT. ALTERNATOR WAS INSTALLED DURING ENGINE O/H BY MFG.
- [SDR CA090126006](https://openairdocs.org/sdr/CA090126006.md): Bolt · broken · Jan 26, 2009 · Hughes 269C · Tail Rotor Head
  > OPERATING A SCHWEIZER 269 C MODEL SERIAL NUMBER S1575 TSN 6449.5 THE CONICAL BRGS WERE REPLACE WITH NEW AT 6338.8 AND A NEW BOLT WAS INSTALLED AT THIS TIME P/N 269A6092-3 WHICH WAS PURCHASE NEW FROM SCHWEIZER ON. THE RETORQUE WAS CARRIED OUT AT 6416.1 TSN NO
- [SDR CA080212005](https://openairdocs.org/sdr/CA080212005.md): Link · disconnected · Feb 8, 2008 · Hughes 269C · Fuel Controlling System
  > (CAN) THE COTTER PIN SECURING THE IDLE MIXTURE LINK BLOCK TO THE MIXTURE CONTROL ARM BECAME DISLODGED. THIS ALLOWED THE MIXTURE LINK BLOCK TO BECOME DISCONNECTED FROM THE MIXTURE CONTROL ARM. RESULTING A LOSS OF CONTROL OVER FUEL FLOW TO THE ENGINE AND THE ENG
- [SDR 2007FA0000697](https://openairdocs.org/sdr/2007FA0000697.md): Condenser · disconnected · Jul 11, 2007 · N7508H · Hughes 269C · Magneto/Distributor
  > SPRING CLIP ON TERMINAL WIRE CAME OFF ALLOWING WIRE TO DISCONNECT. (K)
- [SDR 2007FA0000688](https://openairdocs.org/sdr/2007FA0000688.md): Bracket · loose · Jul 10, 2007 · N9988F · Hughes 269C · Electrical Power System
  > ALTERNATOR BRACKET LOOSE AT ENGINE BOSS. BOLT CAUSES DAMAGE TO ENGINE CRANKCASE WHEN LOOSE. FRETTING OF ARM AND ENGINE CRANKCASE OCCURS. (K)
- [SDR 2007FA0000561](https://openairdocs.org/sdr/2007FA0000561.md): Bushing · worn · May 25, 2007 · N1666S · Hughes 269C · Engine Controls
  > ENGINE MOUNTED THROTTLE LINKAGE BUSHINGS WORN. FOUND ON INSPECTION WITH EXCESSIVE PLAY. PROBABLY OCCURRED DUE TO EXCESSIVE VIBRATION OR LACK OF SUBRICATION. RECOMMENDATION TO PREVENT WOULD BE TO LUBRICATE MORE FREQUENTLY OR DIFFERENT DESIGN OF LINKAGE. (K)
- [SDR BS2R2120003](https://openairdocs.org/sdr/BS2R2120003.md): Pulley Bracket · broken · Nov 17, 2006 · N11047 · Hughes 269C · Engine/Transmission Coupling
  > ONE OF THE TWO BELT DRIVE CLUTCH ACTUATOR CABLE PULLEY BRACKETS BROKE CLEAN ACROSS BETWEEN THE FRAME MOUNT HOLE AND THE PULLEY MOUNT HOLE DURING ENGAGEMENT OF THE ROTOR SYSTEM. DURING THE SUBSEQUENT TAKE OFF ATTEMPT THE ROTOR RPM WOULD BLEED OFF RAPIDLY DUE TO
- [SDR CA060306008](https://openairdocs.org/sdr/CA060306008.md): Fuel Control · malfunctioned · Jan 12, 2006 · Scwzer 269D · Fuel Control/Reciprocating Engines
  > (CAN) CANNOT UNJUST IDLE MIXTURE. REPLACED FUEL CONTROL. (TC NR 20060306008)
- [SDR CA060303016](https://openairdocs.org/sdr/CA060303016.md): Valve · incorrect · Nov 25, 2005 · Hughes 269C · Fuel Quantity Sensor
  > FUEL SYSTEM SENDER INCORRECT VALVE. REPLACED SENDER.
- [SDR CA050825001](https://openairdocs.org/sdr/CA050825001.md): Ring · failed · Aug 17, 2005 · Hughes 269C · Reciprocating Engine Cylinder Section
  > (CAN) HEAVY OIL CONSUMPTION CYLINDER NR 3. OIL RING NOT PERFORMING ITS WORK. REMOVED AND SENT FOR REPAIR. REINSTALLED CYLINDER.
- [SDR CA041124003](https://openairdocs.org/sdr/CA041124003.md): Rotor Shaft · broken · Nov 22, 2004 · Hughes 269C · Magneto/Distributor
  > (CAN) ON RUN UP MAGNETO CHECK, FOUND LT MAG INOP. LT MAG REMOVED AND INSPECTED, ROTOR GEAR WAS FOUND SEPARATED FROM ROTOR SHAFT. RT MAGNETO WAS INSPECTED IN THE SAME AREA OF LT MAG FAILURE NO DEFECT FOUND. A NEW MAGNETO WAS INSTALLED IN LT POSITION RT MAGNE
- [SDR CA060303015](https://openairdocs.org/sdr/CA060303015.md): Indicator · failed · May 30, 2004 · Hughes 269C · Engine Oil Pressure
  > OIL PRESSURE UNSERVICEABLE. REPLACED CLUSTER ASSEMBLY.
- [SDR AUS20040413](https://openairdocs.org/sdr/AUS20040413.md): Bolt · separated · May 14, 2004 · Hughes 269C · Fasteners
  > (AUS) GOVERNOR LINKAGE BOLT SEPARATED. LOSS OF ENGINE CONTROL RESULTED IN AUTO ROTATION AND HEAVY LANDING WITH SOME MINOR DAMAGE TO THE AIRCRAFT.
- [SDR H592004F00000](https://openairdocs.org/sdr/H592004F00000.md): Spline · slipped · Feb 28, 2004 · N75070 · Hughes 269C · Tail Rotor Drive Shaft
  > LEVEL FLIGHT, THE TAIL ROTOR DRIVESHAFT STARTED SLIPPING. TAIL ROTOR DRIVESHAFT SPLINES STRIPED. ON FRONT HALF OF SHAFT, STUDENT ENTERED AN AUTOROTATION AND AIRCRAFT LANDED HARD AND RECEIVED SUBSTANTIAL DAMAGE.
- [SDR AUS20040136](https://openairdocs.org/sdr/AUS20040136.md): Fuel Control · faulty · Feb 27, 2004 · Hughes 269C · Fuel Control/Reciprocating Engines
  > (AUS) ENGINE FUEL CONTROL UNIT FAULTY. INVESTIGATION FOUND PRESSURE ON THE MIXTURE ARM CHANGED THE FUEL FLOW RATE CAUSING THE ENGINE TO STOP.
- [SDR AUS20040085](https://openairdocs.org/sdr/AUS20040085.md): Seal · worn · Feb 8, 2004 · Hughes 269C · Reciprocating Engine Power Section
  > (AUS) ENGINE CRANKSHAFT SEAL LEAKING. INVESTIGATION FOUND SEAL HAD DISINTEGRATED AROUND THE SEALING LIP. THIS IS A REPLACEMENT SEAL AFTER THE SEAL FAILURE IN MDR 04/0084.
- [SDR CA031212006](https://openairdocs.org/sdr/CA031212006.md): Drive Assy · corroded · Dec 10, 2003 · Scwzer 269D · Main Rotor Indicating System
  > (CAN) PILOT REPORTED LOST ROTOR TACH INDICATION. ROTOR DRIVE CABLE WAS REMOVED FROM ITS OUTER SHEATH FOR INSPECTION AND WAS FOUND SNAPPED IN TWO JUST BEFORE IT ENTERS INTO THE TRANSMISSION. IT WAS REMOVED PREVIOUSLY DUE TO REPORT THAT ROTOR NEEDLE WAS BOUNCING
- [SDR CA030703013](https://openairdocs.org/sdr/CA030703013.md): Engine · flamed out · Jun 18, 2003 · Hughes 269C · Engine (Reciprocating)
  > (CAN) SUDDEN ENGINE FLAMES AND A CONTINUOUS LOSS OF SUBSTANTIAL POWER. EMERGENCY LANDING CARRIED OUT. THE ENGINE IS UNDER INVESTIGATION BY TSB. ADDITIONAL REPORT TO FOLLOW.
- [SDR AUS20030615](https://openairdocs.org/sdr/AUS20030615.md): Pinion Gear · failed · Jun 9, 2003 · Hughes 269C · Main Rotor Gearbox
  > (AUS) MAIN TRANSMISSION TAIL ROTOR DRIVESHAFT PINION FAILED IN AREA LOCATED JUST IN FRONT OF THE THREADED AREA ALLOWING THE TAIL ROTOR DRIVE TO SEPARATE. AIRCRAFT STRUCK THE GROUND CAUSING EXTENSIVE DAMAGE TO THE LANDING GEAR.
- [SDR 2003FA0000694](https://openairdocs.org/sdr/2003FA0000694.md): Magneto · failed · May 29, 2003 · N103WP · Scwzer 269D · Magneto/Distributor
  > MAGNETO WAS REPLACED ON 5-27-03 WITH THIS MAGNETO. ON 5-28-03, WHILE PERFORMING MAGNETO CHECK, LEFT MAGNETO WAS DEAD. VERIFIED BY REMOING PRIMARY LEAD. CHECKED NEXT DAY AND STILL WAS NOT FUNCTION ING. REMOVED AND REPLACED MAGNETO.
- [SDR AUS20030521](https://openairdocs.org/sdr/AUS20030521.md): Frame · cracked · May 17, 2003 · Hughes 269C · Fuselage Main, Frame
  > (AUS) FUSELAGE FRAME RT CLUSTER CRACKED.
- [SDR CA030425007](https://openairdocs.org/sdr/CA030425007.md): Shaft · undersize · Apr 19, 2003 · Scwzer 269D · Main Rotor Head
  > (CAN) FORWARD BEARING INNER RACE TURNING ON SHAFT.
- [SDR CA030425008](https://openairdocs.org/sdr/CA030425008.md): Bearing · failed · Apr 7, 2003 · Scwzer 269D · Main Rotor Head
  > (CAN) BEARING INNER RACE TURNING ON PULLEY SHAFT.
- [SDR AUS20030482](https://openairdocs.org/sdr/AUS20030482.md): Coupling · worn · Mar 27, 2003 · Hughes 269B · Engine/Transmission Coupling
  > (AUS) ENGINE TO TRANSMISSION DRIVE LOWER COUPLING WORN. COUPLING HAS A DIFFERENT SERIAL NUMBER TO THE LOGBOOK ENTRY. SUSPECT UNAPPROVED PART. PERSONNEL/MAINTENANCE ERROR.
- [SDR CA030311005](https://openairdocs.org/sdr/CA030311005.md): Control Cable · stiff · Mar 5, 2003 · Scwzer 269D · Fuel Control/Reciprocating Engines
  > (CAN) FUEL CONTROL CABLE STIFF TO OPERATE. REPLACED CONTROL WITH NEW PART.
- [SDR CA030311006](https://openairdocs.org/sdr/CA030311006.md): Belt · cracked · Mar 5, 2003 · Scwzer 269D · Passenger Compartment Equipment
  > (CAN) BELTS CRACKED TO FABRIC. BELT SET REPLACED.
- [SDR CA021031012](https://openairdocs.org/sdr/CA021031012.md): Fuel Control · failed · Sep 6, 2002 · Scwzer 269D · Fuel Controlling System
  > (CAN) FUEL INJECTOR WOULD NOT CUT OFF. ENGINE WOULD CONTINUE RUNNING. REPLACED FUEL CONTROL.
- [SDR AUS20020649](https://openairdocs.org/sdr/AUS20020649.md): Bearing · failed · Jun 17, 2002 · Hughes 269C · Main Rotor Gearbox
  > (AUS) MAIN ROTOR TRANSMISSION OUTPUT SHAFT BEARING DISINTEGRATED. TAILROTOR DRIVESHAFT TWISTED UP AT TRANSMISSION END.
- [SDR AUS20020610](https://openairdocs.org/sdr/AUS20020610.md): Bolt · broken · Jun 15, 2002 · Hughes 269C · Tail Rotor Head
  > (AUS) TAIL ROTOR FORK BOLT BROKEN IN HALF.
- [SDR CA021004005](https://openairdocs.org/sdr/CA021004005.md): Bolt · broken · Jun 12, 2002 · Scwzer 269D · Engine Starter
  > (CAN) NOISE OF STARTER AT ATTEMPTED START. FOUND TWO MISSING AND TWO BROKEN BOLTS THAT HOLD MOTOR HOUSING TO DRIVE HOUSING. INDUSTRIAL GRADE HARDWARE WITH ONLY SHAKE PROOF WASHERS FOUND ON SERVICEABLE UNIT BEING INSTALLED. HARDWARE REPLACED WITH DRILLED HEAD B
- [SDR CA021003008](https://openairdocs.org/sdr/CA021003008.md): Nut · loose · May 1, 2002 · Scwzer 269D · Reciprocating Engine Rear Section
  > (CAN) DAILY INSPECTION REVEALED CLUTCH OIL ON BELT DRIVE ASSEMBLY, STATIC LEAK. INVESTIGATION REVEALED LT THREAD NUT/SEAL RUNNER WAS LOOSE.
- [SDR AUS20011318](https://openairdocs.org/sdr/AUS20011318.md): Bracket · cracked · Dec 11, 2001 · Hughes 269C · Engine/Transmission Coupling
  > (AUS) LOWER DRIVE PULLEY SUPPORT BRACKET CRACKED. ONE ATTACHMENT LUGSEPARATED.
- [SDR AUS20011251](https://openairdocs.org/sdr/AUS20011251.md): Damper · loose · Nov 19, 2001 · Hughes 269C · Main Landing Gear Strut/Axle/Truck
  > (AUS) LH REAR LANDING GEAR DAMPER UPPER CAP UNSCREWED AND SEPARATED FROM PISTON. SUSPECT CAUSED BY VIBRATION.
- [SDR AUS20011055](https://openairdocs.org/sdr/AUS20011055.md): Frame · cracked · Sep 30, 2001 · Hughes 269C · Fuselage Main, Frame
  > (AUS) FUSELAGE FRAME CRACKED AT LT CLUSTER. FOUND VISUALLY AND CONFIRMED USING DYE PENETRANT INSPECTION. AIRCRAFT HAD OPERATED FOR 192.2 HOURS SINCE AD/HU269/57 AMDT2 WAS CARRIED OUT.AD/HU269/57 AMDT2 IS CARRIED OUT EVERY 200 HOURS.
- [SDR 2001FA0000472](https://openairdocs.org/sdr/2001FA0000472.md): Bearing · failed · Sep 12, 2001 · Reciprocating Engine Power Section
  > ENGINE WAS REMOVED DUE TO METAL CONTAMINATION. FOUND NR 3 CONNECTING ROD BEARING FAILED. THE ENGINE DID NOT EXHIBIT SIGNS OF OIL STARVATION. CAUSE FOR THIS FAILURE COULD BE DELAMINATION OF THE ROD BEARING.
- [SDR CA010724034](https://openairdocs.org/sdr/CA010724034.md): Blade · cracked · Jul 10, 2001 · Hughes 269C · Tail Rotor Blades
  > (CAN) ON DAILY INSPECTION OUTBOARD PART OF BLADE SKIN WAS FOUND TO BE CRACKED. CRACK IS FORMED AROUND TIP BLOCK ON BLADE. THE CRACK IS APPROX. 3 INCHES LONG, STARTING FROM BEHIND ABRASION STRIP TO ABOUT MIDDLE OF BLADE.
- [SDR CA010724035](https://openairdocs.org/sdr/CA010724035.md): Blade · damaged · Jul 10, 2001 · Hughes 269C · Tail Rotor Blades
  > (CAN) ON INSPECTION OF OPPOSITE TAIL ROTOR BLADE, THIS TAIL ROTOR BLADE WAS FOUND TO HAVE NO ABRAISON STRIP ON LEADING EDGE OF BLADE. FURTHER INSPECTION REVEALED THAT FILLER WAS USED UNDER PAINT TO BUILD UP EDGE. BOTH BLADES WERE REMOVED AND SENT TO SCHWEIZER
- [SDR CA010727009](https://openairdocs.org/sdr/CA010727009.md): Seal · leaking · Jul 7, 2001 · Scwzer 269D · Main Rotor Gearbox
  > (CAN) OIL SEAL LEAKING IN RPM CABLE. REPLACE OIL SEAL PN CR 3687.
- [SDR CA010727011](https://openairdocs.org/sdr/CA010727011.md): Bearing · ratcheting · Jul 7, 2001 · Scwzer 269D · Main Rotor Head
  > (CAN) BEARING RACHET WHEN INSPECTION. REPLACE BEARING.
- [SDR CA010727014](https://openairdocs.org/sdr/CA010727014.md): Bracket · cracked · Jul 7, 2001 · Scwzer 269D · Heating System
  > (CAN) BRACKET CRACK. REPLACE BRACKET.
- [SDR CA010727008](https://openairdocs.org/sdr/CA010727008.md): Shaft · broken · Jun 7, 2001 · Scwzer 269D · Engine/Transmission Coupling
  > (CAN) BROKEN TEETH ON SHAFT ON ENGINE ADAPTER SIDE. REPLACE SHAFT.
- [SDR CA010727010](https://openairdocs.org/sdr/CA010727010.md): Bearing · worn · Jun 7, 2001 · Scwzer 269D · Main Rotor Head
  > (CAN) BEARING WORN INSIDE. REPLACE ALL 3 GRIP BEAR IN SET.
- [SDR 20010420CW009](https://openairdocs.org/sdr/20010420CW009.md): Bearing · damaged · Mar 16, 2001 · N7430F · Scwzer 269D · Reciprocating Engine Power Section
  > AT 25 HOUR OIL CHANGE, FOUND METAL PARTICLES IN SUCTION SCREEN AND FILTER. ON INSPECTION, FOUND NR 2 MAIN BEARING HAD SPUN NEARLY CAUSING ENGINE FAILURE. CHECK SCREENS.
- [SDR AU001170](https://openairdocs.org/sdr/AU001170.md): Key · disintegrated · Dec 8, 2000 · Hughes 269C · Reciprocating Engine Cylinder Section
  > (AUS) NO3 CYLINDER EXHAUST VALVE SPRING LOCKING KEYS SHATTERED BUT WERE STILL HOLDING THE SPRINGS IN PLACE. CAP PNO MS13998-3 ALSO HADSEVERAL CHIPS MISSING. THE VALVE SEAT WAS DAMAGED BEYOND LIMITS.FOUND DURING INSPECTION IAW LYCOMING SB 388B. NO EVIDENCE OFME

Next page: https://openairdocs.org/engine/lycoming-hio-360-d1a/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 = 'HIO360D1A'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-hio-360-d1a/reports

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