# Service difficulty reports: Lycoming HI0-360 series

A list on [Lycoming HI0-360 series](https://openairdocs.org/engine/lycoming-hi0-360-series.md).

Newest first. General aviation reporting is voluntary.

- [SDR 2011FA0000027](https://openairdocs.org/sdr/2011FA0000027.md): Thrust Bearing · mismanufactured · Jan 14, 2011 · N811TT · Hughes 269C · Main Rotor Drive System
  > (OG5S) DURING 800 HR, 12 AND 24 MONTH INSP, THE MAIN ROTOR DRIVE SHAFT WAS FOUND TO BE WORN JUST ABOVE THE MAIN ROTOR THRUST BEARING. UPON FUTHER INSP, THE WEAR WAS DETERMINED TO BE CAUSED BY THE M/R THRUST BEARING TUBE NOT BEING CHAMFERED IN THE CONTACT AREA
- [SDR 2010FA0000443](https://openairdocs.org/sdr/2010FA0000443.md): Strut · broken · Apr 30, 2010 · N75105 · Hughes 269C · Rotorcraft Tail Boom
  > (OG5S) DURING UNSCHEDULED MX THE LOWER DRIVE SUPPORT STRUT WAS FOUND TO BE CRACKED 90 PERCENT THROUGH THE TUBE WHERE THE UPPER ATTACH LUG IS WELDED. UPON REMOVAL THE LUG COMPLETELY SEPARATED FROM THE TUBE. IF TUBE HAD SEPARATED DURING FLIGHT LOSS OF MAIN ROTO
- [SDR 2009FA0000284](https://openairdocs.org/sdr/2009FA0000284.md): Mount · cracked · Mar 31, 2009 · N620TA · Enstrm F28F · Engine Mount Section
  > TROUBLESHOOTING A TRACKING DISCREPANCY, IT WAS FOUND THAT THE RT FWD MOUNT LOCATION OF THE PYLON HAD CRACKED AS WELL AS THE GUSSET. THE CRACK WAS NOT VISIBLE THROUGH THE UPPER SIDE PANELS JUST BELOW THE FUEL TANKS. THE CRACK WAS NOT FOUND UNTIL THE FUEL TANK
- [SDR 2008FA0000654](https://openairdocs.org/sdr/2008FA0000654.md): Cylinder Head · damaged · Jul 23, 2008 · N8626E · Enstrm F28F · Reciprocating Engine Cylinder Section
  > DURING CYLINDER OVERHAUL A DAMAGE SEAT POCKET CUTTER USE USED. THIS RESULTED IN A VALVE SEAT POCKET THAT MEASURED WITHIN LIMITS BUT LACKED THE PROPER SURFACE CONTACT. AFTER APPROXIMATELY 3 HOURS OF ENGINE OPERATION, THE VALVE SEAT CAME OUT CAUSING THE INTAKE V
- [SDR CA070909001](https://openairdocs.org/sdr/CA070909001.md): Bracket · broken · Sep 8, 2007 · Hughes 269C1 · AC Generator-Alternator
  > (CAN) ALTERNATOR BRACKET FOUND WITH BROKEN ATTACHMENT LUG. ALTERNATOR BELT TENSION LOSS AND SUBSEQUENT SYSTEM UNSERVICEABILITY. CAUSE OF FAILURE UNDER INVESTIGATION. (TC NR 20070909001)
- [SDR CA070705012](https://openairdocs.org/sdr/CA070705012.md): Alternator · failed · Jul 5, 2007 · Hughes 269C1 · DC Generator-Alternator
  > (CAN) ALTERNATOR FAILED ON STARTUP. FOUND ROTOR JAMMING AND PULLEY HAD OVERHEATED. LOOSE PARTS HEARD INSIDE ALTERNATOR. NO PREVIOUS INDICATIONS OF IMPENDING FAILURE. (TC NR 20070705012)
- [SDR 2007FA0000510](https://openairdocs.org/sdr/2007FA0000510.md): Lock Nut · backed out · Jun 18, 2007 · N27YS · Hughes 269C · Tail Rotor Gearbox
  > DURING GROUND RUNUP, PILOT NOTICED TAIL ROTOR NOT SPINNING. AIRCRAFT SHUTDOWN AND RETURNED TO HANGER. UPON DISASSEMBLY IT WAS NOTED THAT THE NUT PN 269A6029 THAT ATTACHES THE DRIVE COUPLING TO THE GEARBOX HAD BACKED OUT COMPLETELY AND WORN A HOLE THROUGH THE A
- [SDR CA070614001](https://openairdocs.org/sdr/CA070614001.md): Drive Belt · split · Jun 8, 2007 · Hughes 269C1 · Engine/Transmission Coupling
  > (CAN) DRIVE BELT AXIAL SPLIT OVER 50 PERCENT OF BELT CIRCUMFERENCE; SPLIT OCCURS UNDER OUTER LAYER OF BELT. DEFECT HAS BEEN FOUND ON (2) OTHER AIRCRAFT OF THE SAME TYPE. NOTE: PLEASE ADVISE IF PHYSICAL INSPECTION IS REQUIRED AS MUST RETURN BELTS TO MANUFACTU
- [SDR 2006FA0001041](https://openairdocs.org/sdr/2006FA0001041.md): Drive Belt · stretched · Oct 6, 2006 · N17535 · Hughes 269C1 · Main Rotor System
  > NEW DRIVE BELTS WERE INSTALLED, STRETCHED FOR 24 HOURS, AND RE-ADJUSTED IAW MM. THE AIRCRAFT WAS RETURNED TO SERVICE AND.5 HOUR INTO THE FIRST FLIGHT THE PILOT NOTICED THE MAIN ROTOR RPM DECAYING AND ENGINE RPM INCREASING. A STEEP DESCENT WITH POWER WAS PER
- [SDR 2005FA0001286](https://openairdocs.org/sdr/2005FA0001286.md): Hinge · broken · Aug 30, 2005 · N1567C · Hughes 269C1 · Fuselage, Landing Gear Attach Fittings
  > THE DOOR PIN PORTION OF THE HINGE, WHICH IS RESPONSIBLE RETAINING THE DOOR, BROKE IN FLIGHT AND THE DOOR WAS UNSECURED AT THE LOWER CONNECTING POINT. THE FLIGHT CREW LANDED, THE DOOR WAS SECURED TEMPORARILY AND THE AIRCRAFT RETURNED TO THE MAINTENANCE FACILIT
- [SDR HA42005F00000](https://openairdocs.org/sdr/HA42005F00000.md): Hinge · broken · Aug 28, 2005 · N1565B · Hughes 269C1 · Passenger/Crew Doors
  > THE DOOR PIN PORTION OF THE HINGE, WHICH IS RESPONSIBLE RETAINING THE DOOR, BROKE. THIS LEAVES THE DOOR CONNECTED AT ONLY 1 POINT AND AN IN-FLIGHT FAILURE COULD POTENTIALLY ALLOW THE DOOR SEPARATE FROM THE AIRCRAFT. (K)
- [SDR 2005FA0001285](https://openairdocs.org/sdr/2005FA0001285.md): Hinge · failed · Aug 27, 2005 · N1542D · Hughes 269C1 · Passenger/Crew Doors
  > THE DOOR PIN PORTION OF THE HINGE, WHICH IS RESPONSIBLE RETAINING THE DOOR, FAILED. THIS LEAVES THE DOOR CONNECTED AT ONLY ONE POINT AND AN IN-FLIGHT FAILURE COULD POTENTIALLY ALLOW THE DOOR SEPARATE FROM THE AIRCRAFT. (K)
- [SDR 2005FA0000247](https://openairdocs.org/sdr/2005FA0000247.md): Trim System · failed · Feb 8, 2005 · N2096W · Scwzer 269D · Rotorcraft Flight Control
  > DURING DESCENT TO LANDING THE CYCLIC STICK JAMMED SO AS TO NOT ALLOW ANY LATERAL MOVEMENT TO THE RT BEYOND NEUTRAL POSITION. THIS WAS CAUSED BY THE SPRING TUBE COMING OUT OF THE TRIM HOUSING AND LOCKING THE TRIM ARM AT A.7500 EXTENDED POSITION. THE SPRING T
- [SDR 2005FA0000418](https://openairdocs.org/sdr/2005FA0000418.md): Shaft · worn · Jan 7, 2005 · N269TJ · Hughes 269C · Tail Rotor Drive Shaft
  > DURING ANNUAL INSPECTION GREASE IN LOWER PULLEY SHAFT HAD A RUSTY (BROWN) COLOR (NOTE: ANDEROL GREASE IS BLACK). UPON INSPECTION PART HAS 414.2 HOURS SINCE NEW, THE SPLINES WERE WORN BEYOND LIMITS. SPECULATION OF MFG AND OUR FACILITY IS THAT THE GREASE WAS C
- [SDR 2005FA0000419](https://openairdocs.org/sdr/2005FA0000419.md): Drive Shaft · corroded · Jan 7, 2005 · N72LP · Hughes 269C1 · Tail Rotor Drive Shaft
  > DURING 600 HOUR INSPECTION GREASE IN DRIVE SHAFT HAD A RUSTY (BROWN) COLOR (NOTE: ANDEROL GREASE IS BLACK). UPON INSPECTION PART HAS 600.0 HOURS SINCE NEW. LIFE LIMIT OF 6000 HRS, THE SPLINES WERE WORN TO THE THICKNESS OF A PIECE OF PAPER (APPROX.090 NEW).
- [SDR 2005FA0000420](https://openairdocs.org/sdr/2005FA0000420.md): Shaft · worn · Jan 7, 2005 · N72LP · Hughes 269C1 · Main Rotor Gearbox
  > DURING 600 HOUR INSPECTION GREASE IN LOWER PULLEY SHAFT HAD A RUSTY (BROWN) COLOR (NOTE: ANDEROL GREASE IS BLACK). UPON INSPECTION PART HAS 600.0 HOURS SINCE NEW, THE SPLINES SHOWED IRREGULAR WEAR. SPECULATION OF MFG AND OUR FACILITY IS THAT THE GREASE WAS C
- [SDR PNR2004F00001](https://openairdocs.org/sdr/PNR2004F00001.md): Bearing · delaminated · May 19, 2004 · N646H · Enstrm 280C · Rudder Structure
  > PILOTS COMPLAINED ABOUT HEAVY COLLECTIVE AND EXCESSIVE AMOUNT OF RT COLLECTIVE INPUT TO FLY. UPON INSPECTION OF THE LAMIFLEX BEARINGS, IT WAS DISCOVERED THAT THE RUBBER AND BRASS MATERIAL WAS EXTRUDING AND DELAMINATING. UNABLE TO DETERMINE CAUSE. USEFUL LIF
- [SDR PNR2004F00002](https://openairdocs.org/sdr/PNR2004F00002.md): Doubler · cracked · May 19, 2004 · N646H · Enstrm 280C · Rotorcraft Tail Boom
  > BULKHEAD DOUBLER UNDER NR 3 TAILROTOR DRIVESHAFT PILLOW BLOCK FOUND CRACKED. CRACKS WERE PROPAGATING FROM THE RADIUS AREA ON BOTH UPPER TABS WERE THE NUT PLATES ARE RIVETED ON. BOTH NUT PLATES HAD PREVIOUSLY BEEN ROUNDED IN THE RADIUS AREA TO REDUCE THE CHAN
- [SDR 2003FA0001064](https://openairdocs.org/sdr/2003FA0001064.md): Clutch · worn · Oct 2, 2003 · N646H · Enstrm 280C · Engine/Transmission Coupling
  > ON DRIVE BELT CLUTCH MECHANISM, THE SPRING HAD WORN THROUGH THE SIDE OF THE HOUSING FROM MANY HOURS OF RUBBING BACK AND FORTH. THE ABOVE MENTIONED SPRING AND THE SPRING CAP WERE ALSO WORN BEYOND THE INSPECTION CRITERIA IN THE MFG MM. AS FAR AS WE COULD TELL
- [SDR 2003FA0001065](https://openairdocs.org/sdr/2003FA0001065.md): Control Cable · worn · Oct 2, 2003 · N646H · Enstrm 280C · Tail Rotor Control System
  > BOTH REAR TAIL ROTOR CONTROLS CABLES WERE WORN WHERE THEY PASS THROUGH PLASTIC FAIR-LEADS IN AFT BULKHEAD OF TAIL BOOM. BOTH WERE WORN TO 40-50 PERCENT INSP CRITERIA. THIS IS BECOMING A CHRONIC PROBLEM AS RECORDS INDICATE THEY WERE REPLACED 1 MAY 2001, AFT O
- [SDR 6462003F00000](https://openairdocs.org/sdr/6462003F00000.md): Control Cable · worn · Jun 1, 2003 · N646H · Enstrm 280C · Tail Rotor Control System
  > BOTH LEFT AND RIGHT TAIL ROTOR CONTROL CABLES SHOW EXCESS WEAR, WHERE THEY PASS THRU THE FAIRLEADS IN THE AFT TALL CONE BULKHEAD. CABLES HAVE BEEN WEARING IN THIS LOCATION CONSTANTLY EVERY 300 TO 400 HOURS. SUGGEST A WIDER CONTACT SURFACE AREA AT THE FAIR LE
- [SDR COW2003F00001](https://openairdocs.org/sdr/COW2003F00001.md): Servo · inoperative · May 29, 2003 · N103WP · Scwzer 269D · Fuel Controlling System
  > ON INITIAL TEST FLIGHT, AFTER INSTALLING ENGINE RECEIVED FROM OVERHAULER, ENGINE HAD UNUSUALLY HIGH CYLINDER HEAD TEMPERATURES AND RAN ROUGH. REMOVED AND REPLACED FUEL SERVEO (PRECISION AIRMOTIVE) WITH SERVICEABLE UNIT AND ENGINE POWER AND TEMPS FOUND NORMAL.
- [SDR COW2003F00000](https://openairdocs.org/sdr/COW2003F00000.md): Support · failed · May 2, 2003 · N103WP · Scwzer 269D · Main Rotor Control
  > ON 5/2/03, WHILE ON FINAL APPROACH TO AIRPORT, PILOT HEARD A LOAD EXPLOSION, FOLLOWED BY A LOSS OF ENGINE TACH. PILOT INITIATED AUTOROTATION TO OPEN FIELD ON AIRPORT PROPERTY. ON 5/3/03, DISCOVERED CLUTCH CONTROL SPRING HANGING OVER EXHAUST AND IDLER PULLEY
- [SDR OG52003F00000](https://openairdocs.org/sdr/OG52003F00000.md): Fitting · incorrect · Jan 6, 2003 · N2086F · Scwzer 269D · Tail Rotor Drive Shaft
  > AFTER ENGAGEMENT OF ROTOR SYSTEM, TAIL ROTOR DID NOT MOVE. INVESTIGATION FOUND BALL MISSING OUT OF ZERT, ALLOWING GREASE TO ESCAPE ALLOWING BUMPER TO WEAR ALLOWING SHAFT TO DECOUPLE.
- [SDR 2003FA0000973](https://openairdocs.org/sdr/2003FA0000973.md): Ball · missing · Jan 6, 2003 · N2086F · Scwzer 269D · Tail Rotor Head
  > AFTER ENGAGEMENT OF ROTOR SYSTEM, TAIL ROTOR DID NOT MOVE. INVESTIGATION FOUND BALL MISSING OUT OF ZERC, ALLOWING GREASE TO ESCAPE ALLOWING BUMPER TO WEAR ALLOWING SHAFT TO DECOUPLE.
- [SDR PN12002F00001](https://openairdocs.org/sdr/PN12002F00001.md): Pulley · loose · Feb 7, 2002 · N204HF · Hughes 269C1 · Drag Control System
  > DURING ROUTINE INSPECTION FOUND AFT LOWER PULLEY DRIVE BEARING WAS LOOSE ON THE SHAFT. SENT TO SAC FOR ELEVATOR. PRODUCT SUPPORT REPORTED THE AFT BEARING I.D. WAS OVERSIZED WHICH CAUSED THE LOOSENESS. THE AFT BEARING WAS REPLACED.

## 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 = 'HIO360'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-hi0-360-series/reports

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