# Service difficulty reports: Eurocopter/Canada BO 105LS A-3

A list on [Eurocopter/Canada BO 105LS A-3](https://openairdocs.org/model/eurocopter-canada-bo-105ls-a-3.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 99 reports

- [SDR CA140106009](https://openairdocs.org/sdr/CA140106009.md): Blade · debonded · Jan 6, 2014 · Bolkms BO105LSA3 · Main Rotor Blades
  > (CAN) LOWER SURFACE OF OTBD ERROSION SHELL FOUND DEBONDED IN 3 LOCATIONS. DEBOND AREA EXCEEDS TOTAL ALLOWABLE OF 5 CM SQUARE, REF MM CHAPTER 14, PAGE 11, PARA 12-4.
- [SDR 2008FA0000890](https://openairdocs.org/sdr/2008FA0000890.md): Bearing · cracked · Nov 19, 2008 · N315LS · Bolkms BO105LSA3 · Tail Rotor Drive System
  > MAIN TRANSMISSION WAS DELIVERED FOR O/H. THERE WAS NO NOTICE ABOUT AN INCIDENT OR A CHIP WARNING. CHIP DETECTOR AND OIL FILTER WERE CLEAN. AT THE BEGINNING OF THE DISASSEMBLY, THE MECHANIC NOTED THAT THE TAILROTOR DRIVE DID NOT MOVE WHEN THE INPUT FLANGE WAS
- [SDR 2008FA0000889](https://openairdocs.org/sdr/2008FA0000889.md): Pinion Gear · deformed · Nov 19, 2008 · N315LS · Bolkms BO105LSA3 · Tail Rotor Gearbox
  > THE MAIN TRANSMISSION WAS DELIVERED FOR OVERHAUL. THERE WAS NO NOTICE ABOUT AN INCIDENT OR A CHIP WARNING. CHIP DETECTOR AND OIL FILTER WERE CLEAN. AT THE BEGINNING OF THE DISASSEMBLY, MECHANIC NOTED THAT THE TAILROTOR DRIVE DIDN’T MOVE WHEN THE INPUT FLANG
- [SDR 09152007TB](https://openairdocs.org/sdr/09152007TB.md): None · none · Sep 15, 2007 · N31RX · Bolkms BO105LSA3 · Fuselage Structure (General)
  > THE EMS FLIGHT WAS ENROUTE WITH PATIENT ON BOARD, CREW HEARD LOUD BAND SOUND OUTSIDE OF AIRCRAFT, NO INSTRUMENTATION WARNINGS, PILOT ELECTED PRECAUTIONARY LANDING A CLOSEST AIRPORT. EMS FLIGHT CONTINUED WITH ANOTHER AIRCRAFT, BASE MECHANIC RESPONDED, FOUND EVI
- [SDR 105102006TB](https://openairdocs.org/sdr/105102006TB.md): Pressure Switch · inoperative · Oct 11, 2006 · N31RX · Bolkms BO105LSA3 · Cabin Pressure Sensor
  > THE EMS FLIGHT WAS EN ROUTE TO HOME BASE IN REDDING, CALIFORNIA, AFTER A CANCELLED SCENE CALL 20 MILES TO THE NORTHEAST. THE PILOT NOTICED THE ILLUMINATION OF THE NR 2 TRANSMISSION OIL PRESSURE CAUTION LIGHT IN THE COCKPIT. THERE WERE NO SECONDARY INDICATION
- [SDR B652006F00000](https://openairdocs.org/sdr/B652006F00000.md): Bolt · sheared · Apr 13, 2006 · N202LF · Bolkms BO105LSA3 · Tail Rotor Gearbox
  > DURING COURSE OF AN ACCIDENT INVESTIGATION, IT WAS NOTED THAT BOLTS THAT CONNECT TAIL ROTOR DRIVE SHAFT TO INPUT THOMAS COUPLING OF INTERMEDIATE GEARBOX WERE SHEARED. SHEARING TOOK PLACE JUST BELOW GRIP LENGTH AREA OF BOLT. SHEARED BOLTS WERE STILL IN FLANG
- [SDR B652005F00000](https://openairdocs.org/sdr/B652005F00000.md): Switch · stuck · May 20, 2005 · N202LF · Bolkms BO105LSA3 · Hydraulic System, Main
  > WHEN PERFORMING THE FUNCTIONAL TEST OF THE HYDRAULIC SYSTEM, CHAPTER 43-14, PG 24 OF THE MM. UNABLE TO GET THE HYDRAULIC UNIT TO SWITCH OVER TO THE NR 2 POSITION. DURING THE INVESTIGATION, IT WAS OBSERVED THAT THE HYDRAULIC TEST SWITCH WAS STUCK IN THE RESET
- [SDR CA040407009](https://openairdocs.org/sdr/CA040407009.md): Housing · cracked · Apr 7, 2004 · Bolkms BO105LSA3 · Hydraulic System, Main
  > (CAN) DURING TESTING THE ACTUATOR SHOWED HIGH INTERNAL LEAKAGE. AFTER INVESTIGATION IT WAS DISCOVERED THAT THE HOUSING WAS CRACKED INTERNALLY. THE CRACK IS IN THE SERVO VALVE AXIS OF THE HOUSING AND APPEARS TO ORIGINATE FROM A DRILLED PASSAGE. THIS ASSEMBLY
- [SDR BRM2003F00000](https://openairdocs.org/sdr/BRM2003F00000.md): Sensor · failed · Aug 5, 2003 · N315LS · Bolkms BO105LSA3 · Engine Fuel Indicating System
  > FORWARD TRANSFER PUMP ANNUNCIATOR LIGHT CAME ON. A PRECAUTIONARY LANDING WAS MADE. THE SYSTEM WAS CHECKED OUT AND IT WAS DETERMINED THAT THE DETECTOR, FUEL PUMP FAIL SENSING UNIT PN 117-89783-01 WAS THE CAUSE OF THE PROBLEM AND IT WAS REPLACED.
- [SDR BRM2001F00002](https://openairdocs.org/sdr/BRM2001F00002.md): Pump · inoperative · Nov 14, 2001 · N93LF · Bolkms BO105LSA3 · Fuel Transfer Valve
  > INTERUPTION TO FLIGHT SUMMARY, 11/13/2001. ON A FLIGHT, THE LOW LEVEL FUEL LIGHT ILLUMINATED. PRECAUTIONARY LANDING MADE AT THAT TIME. UPON INSPECTION BOTH FUEL PUMPS IN MAIN FUEL TANK FOUND INOPERATIVE. REPLACED FUEL PUMPS WITH 0.0 TSO UNITS, LEAK AND OPE
- [SDR B652001F00000](https://openairdocs.org/sdr/B652001F00000.md): Skin · cracked · Jul 6, 2001 · N202LF · Bolkms BO105LSA3 · Vertical Stabilizer, Plate/Skin
  > FOUND FATIGUE CRACK IN RIGHT VERTICAL STABILIZER FIN DURING PREFLIGHT. CRACK STARTED AT FORWARD AND TOP ATTACH POINTS AND RAN AFT FOR APPROXIMATELY 8 INCHES. CRACK WAS ON INSIDE SURFACE AT MOUNTING POINTS TO HORIZONTAL STABILIZER.
- [SDR 2001F00245](https://openairdocs.org/sdr/2001F00245.md): Engine · failed · Jun 23, 2001 · N93LF · Bolkms BO105LSA3 · Engine (Turbine/Turboprop)
  > AIRCRAFT WAS ON WAY BACK FROM BURLEY IDAHO TO BRMS, WHEN RECEIVING A CAUTIONARY CHIP LIGHT FOR THE NR 1 ENGINE. THE CHIP WAS BURNED OFF USING THE FUZZ BUSTER. SHORTLY THERE AFTER THE NR 1 CHIP LIGHT CAME ON AGAIN. THE AIRCRAFT MAD A PRECAUTIONARY LANDING AT
- [SDR T212003F00000](https://openairdocs.org/sdr/T212003F00000.md): Structure · cracked · Jun 22, 2001 · N727WW · Bolkms BO105LSA3 · Vertical Stabilizer
  > AT DAILY INSPECTION CHECK, CRACKS WERE FOUND, THROUGH INSPECTION PLATE, AT TOP OF VERTICAL FIN. CRACK ABOUT 1.5 INCH LONG ON NOSE RIB (PN105-3040120/ 1053041415), WHERE THE TAIL ROTOR GEAR BOX ATTACHED, ALSO RIVET MISSING. PROBABLE CAUSE, VIBRATION.
- [SDR BRM2001F00000](https://openairdocs.org/sdr/BRM2001F00000.md): Warning Light · activated · May 25, 2001 · N93LF · Bolkms BO105LSA3 · Engine Indicating System
  > ON 5/25/01 ENROUTE, NR 2 ENGINE GOT A CHIP LIGHT. THE FLIGHT MANUAL CALLS OUT TO LAND AS SOON AS PRACTICAL. THE PILOT DECIDED AFTER REFERENCING THE FLIGHT MANUAL, THAT THE AIRCRAFT COULD SAFELY FLY ON ONE ENGINE. THE NR 2 ENGINE WAS SHUT DOWN AND THE AIRCRA
- [SDR 20000413SH051](https://openairdocs.org/sdr/20000413SH051.md): Indicator · reads high · Feb 15, 2000 · N8118Y · Bolkms BO105LSA3 · Main Rotor Indicating System
  > MAST INDICATOR OUT OF CALIBRATION. READING HIGH SETTING OF LIGHT. REMOVED AND REPLACED. (X)
- [SDR 20000413SH012](https://openairdocs.org/sdr/20000413SH012.md): Transmitter · reads high · Feb 15, 2000 · N8118Y · Bolkms BO105LSA3 · Engine BMEP/Torque Indicating
  > TORQUE TRANSMITTER OUT OF CALIBRATION. READING HIGH SETTING OF LIGHT. REMOVED AND REPLACED. (X)
- [SDR 20000406SH029](https://openairdocs.org/sdr/20000406SH029.md): Blade · unbonded · Dec 23, 1999 · N8118Y · Bolkms BO105LSA3 · Main Rotor Blades
  > BLADE WAS COMING UNSTACKED IN-FLIGHT. REMOVED AND REPLACED. (X)
- [SDR 20000406SH028](https://openairdocs.org/sdr/20000406SH028.md): Blade · damaged · Dec 23, 1999 · N8118Y · Bolkms BO105LSA3 · Main Rotor Blades
  > BLADE WOULD NOT BALANCE WITH OPPOSITE BLADE. REMOVED AND REPLACED. (X)
- [SDR 2000ZZZX787](https://openairdocs.org/sdr/2000ZZZX787.md): Switch · inoperative · Nov 15, 1999 · N202LF · Bolkms BO105LSA3 · Rotor Drive Indicating System
  > SWITCH INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX788](https://openairdocs.org/sdr/2000ZZZX788.md): Switch · inoperative · Nov 5, 1999 · N202LF · Bolkms BO105LSA3 · Rotor Drive Indicating System
  > SWITCH INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 99ZZZX4575](https://openairdocs.org/sdr/99ZZZX4575.md): Hydraulic Pack · leaking · Nov 3, 1999 · N8118Y · Bolkms BO105LSA3 · Hydraulic System, Main
  > LOW PRESSURE SEALS ON SYSTEM. ONE RESERVOIR LEAKING. ALSO, PERFORMED 6-MONTH AND 1-YEAR INSPECTIONS. REMOVED AND REPLACED.
- [SDR 99ZZZX4570](https://openairdocs.org/sdr/99ZZZX4570.md): Switch · failed · Sep 12, 1999 · N8118Y · Bolkms BO105LSA3 · Engine Oil Pressure
  > UNIT FAILED AFTER 203.9 HOURS OF USE. REMOVED AND REPLACED.
- [SDR 99ZZZX2839](https://openairdocs.org/sdr/99ZZZX2839.md): Dampener · failed · Jun 25, 1999 · N911SV · Bolkms BO105LSA3 · Main Rotor Blades
  > THERE WAS AN APPARENT FAILURE WITHIN THE MAIN ROTOR BLADE CUFF THAT FIXES THE LEAD LAG DAMPENER, AND SPHERICAL BEARING SUPPORT TO THE BLADE ASSEMBLY, AND IS CURRENTLY UNDER INVESTIGATION BY AEC TECHNICAL REPRESENTATIVES.
- [SDR 99ZZZX3212](https://openairdocs.org/sdr/99ZZZX3212.md): Transmitter · failed · Jun 19, 1999 · N911SY · Bolkms BO105LSA3 · Fuel Indicating System
  > TERMINAL BROKEN. REF: MCN 108. REMOVED AND REPLACED.
- [SDR 99ZZZX3296](https://openairdocs.org/sdr/99ZZZX3296.md): Engine · malfunctioned · Jun 6, 1999 · N93LF · Bolkms BO105LSA3 · Engine (Turbine/Turboprop)
  > FLYING FROM POCATELLO TO TWIN FALLS, PILOT ENCOUNTERED ABNORMAL TORQUE CHANGES IN NR 1 ENGINE. IT HAPPENED TWICE. PILOT NOTED LOW OIL PRESSURE, THEN NO OIL PRESSURE. THE NR 1 ENGINE IS SHUT DOWN IN-FLIGHT AND A LANDING WAS MADE AT BURLEY AIRPORT. NO EXTERN
- [SDR 99ZZZX2877](https://openairdocs.org/sdr/99ZZZX2877.md): Transceiver · failed · May 21, 1999 · N911SV · Bolkms BO105LSA3 · VHF Communications System
  > TRANSCEIVER WILL NOT TRANSMIT OR RECEIVE. REF: MCN 75. REMOVED AND REPLACED.
- [SDR 99ZZZX2870](https://openairdocs.org/sdr/99ZZZX2870.md): Switch · inoperative · May 21, 1999 · N8118Y · Bolkms BO105LSA3 · Engine Oil Indicating System
  > OIL PRESSURE SWITCH INOPERATIVE. REMOVED AND REPLACED.
- [SDR 99ZZZX2898](https://openairdocs.org/sdr/99ZZZX2898.md): Mixing Valve · inperative · Apr 29, 1999 · N911SV · Bolkms BO105LSA3 · Cabin Cooling System
  > VALVE WILL NOT OPEN. REF: RMA NR R019843 (MCN 44). REMOVED AND REPLACED.
- [SDR 99ZZZX2899](https://openairdocs.org/sdr/99ZZZX2899.md): Mixing Valve · inoperative · Apr 23, 1999 · N911SV · Bolkms BO105LSA3 · Cabin Cooling System
  > MIXING VALVE WILL NOT OPERATE. REF: RMA NR R019777 (MCN 43). REMOVED AND REPLACED.
- [SDR 99ZZZX3873](https://openairdocs.org/sdr/99ZZZX3873.md): Transmitter · malfunctioned · Feb 13, 1999 · N203LF · Bolkms BO105LSA3 · Fuel Quantity Sensor
  > TUBE SEPARATED FROM SENDING UNIT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 99ZZZX1269](https://openairdocs.org/sdr/99ZZZX1269.md): Blade · peeling · Jan 29, 1999 · N8118Y · Bolkms BO105LSA3 · Tail Rotor Blades
  > PAINT ON BLADE PEELING AFTER ONLY 420.7 HOURS SINCE REPAIR. REMOVED AND REPLACED.
- [SDR 99ZZZX1268](https://openairdocs.org/sdr/99ZZZX1268.md): Blade · peeling · Jan 29, 1999 · N8118Y · Bolkms BO105LSA3 · Tail Rotor Blades
  > PAINT PEELING ON BLADE AFTER ONLY 420.7 HOURS SINCE REPAIR. REMOVED AND REPLACED.
- [SDR 99ZZZX3874](https://openairdocs.org/sdr/99ZZZX3874.md): Switch · inoperatiave · Jan 19, 1999 · N202LF · Bolkms BO105LSA3 · Main Rotor Gearbox
  > SWITCH INOPERATIVE. FAILS TO ILLUMINATE PRESSURE LIGHT. LIGHT FLICKERS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 99ZZZX1272](https://openairdocs.org/sdr/99ZZZX1272.md): Indicator · sticks · Oct 31, 1998 · N911SV · Bolkms BO105LSA3 · Engine BMEP/Torque Indicating
  > NR 1 NEEDLE HANGS UP. RMA NR R017687. REMOVED AND REPLACED.
- [SDR 99ZZZX850](https://openairdocs.org/sdr/99ZZZX850.md): Switch · inoperative · Sep 7, 1998 · N202LF · Bolkms BO105LSA3 · Main Rotor Gearbox
  > OIL PRESSURE WARNING SWITCH INOPERATIVE. WILL NOT TURN OFF MAIN TRANSMISSION PRESSURE WARNING LIGHT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX3084](https://openairdocs.org/sdr/98ZZZX3084.md): Window · departed · Jul 13, 1998 · N203LF · Bolkms BO105LSA3 · Flight Compartment Windows
  > PILOT'S SLIDING WINDOW WAS OPEN. WINDOW TRIM DEBONDED FROM WINDOW ALLOWING WINDOW SLIDER TO DEPART AIRCRAFT. THIS IS THE SECOND OCCURRENCE AT THIS CONTRACT LOCATION. FIRST ONE WAS CAUGHT IN TIME AND WINDOW TRIM WAS REBONDED. FIRST ONE WAS ON BK117B1, COPIL
- [SDR 98ZZZX2523](https://openairdocs.org/sdr/98ZZZX2523.md): Shaft · defective · Jun 23, 1998 · N202LF · Bolkms BO105LSA3 · Main Rotor Gearbox
  > RECEIVED UNIT IN NEW CONDITION AND FOUND THE PLATING WAS PEELING OFF. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX2522](https://openairdocs.org/sdr/98ZZZX2522.md): Shaft · defective · Jun 23, 1998 · N202LF · Bolkms BO105LSA3 · Main Rotor Gearbox
  > RECEIVED SHAFT UNIT IN NEW CONDITION AND FOUND THE PLATING WAS PEELING OFF. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX2524](https://openairdocs.org/sdr/98ZZZX2524.md): Tank · leaking · Jun 7, 1998 · N203LF · Bolkms BO105LSA3 · Fuel Storage
  > FUEL TANK LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1888](https://openairdocs.org/sdr/98ZZZX1888.md): Switch · failed · Apr 3, 1998 · N911SV · Bolkms BO105LSA3 · Main Rotor Gearbox
  > GEARBOX OIL PRESSURE MALFUNCTION IS COMMON DUE TO PRESSURE SWITCH. SUBMITTER STATED THE SYSTEM NEEDS A PRESSURE GAUGE TO VERIFY LIKE THE ENGINE OIL SYSTEM.
- [SDR 98ZZZX1354](https://openairdocs.org/sdr/98ZZZX1354.md): Control Unit · malfunctioned · Mar 17, 1998 · N202LF · Bolkms BO105LSA3 · Autopilot System
  > CONTROL MALFUNCTION, ROLL FEEDBACK DURING FLIGHT AND PITCH INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1576](https://openairdocs.org/sdr/98ZZZX1576.md): Transmitter · erratic · Mar 16, 1998 · N203LF · Bolkms BO105LSA3 · Fuel Indicating System
  > FUEL PRESSURE TRANSMITTER IS ERRATIC. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1574](https://openairdocs.org/sdr/98ZZZX1574.md): Switch · failed · Feb 26, 1998 · N203LF · Bolkms BO105LSA3 · Engine Oil Pressure
  > OIL PRESSURE WARNING SWITCH HAS ERRATIC OPERATION. CAUSES LOW PRESSURE WARNING LIGHT AT 100 PERCENT NR FLAT PITCH. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1577](https://openairdocs.org/sdr/98ZZZX1577.md): Bushing · worn · Feb 16, 1998 · N202LF · Bolkms BO105LSA3 · Engine Mount Section
  > ENGINE MOUNT BUSHING'S ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1512](https://openairdocs.org/sdr/98ZZZX1512.md): Audio Panel · defective · Jan 29, 1998 · N911SV · Bolkms BO105LSA3 · Audio Integrating System
  > AUDIO PANEL SELECT KNOB INOPERATIVE. REMOVED AND REPLACED.
- [SDR 98ZZZX1573](https://openairdocs.org/sdr/98ZZZX1573.md): Bearing · worn · Jan 8, 1998 · N203LF · Bolkms BO105LSA3 · Tail Rotor Head
  > TAIL ROTOR BEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.
- [SDR 98ZZZX1575](https://openairdocs.org/sdr/98ZZZX1575.md): Switch · failed · Jan 5, 1998 · N203LF · Bolkms BO105LSA3 · Engine Oil Pressure
  > OIL PRESSURE WARNING SWITCH UNIT IS INOPERATIVE. INTERMITTENTLY LIGHT GOES 'ON' THEN 'OFF' DURING FLIGHT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1837](https://openairdocs.org/sdr/98ZZZX1837.md): Indicator · sticks · Jan 2, 1998 · N202LF · Bolkms BO105LSA3 · Engine BMEP/Torque Indicating
  > DUAL TORQUE INDICATOR NEEDLES STICK. REPLACES WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1571](https://openairdocs.org/sdr/98ZZZX1571.md): Bearing · worn · Dec 2, 1997 · N202LF · Bolkms BO105LSA3 · Tail Rotor Head
  > BEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1572](https://openairdocs.org/sdr/98ZZZX1572.md): Switch · failed · Nov 30, 1997 · N202LF · Bolkms BO105LSA3 · Engine Oil Pressure
  > OIL PRESSURE WARNING SWITCH INOPERATIVE. LOW PRESSURE LIGHT 'ON' IN-FLIGHT AND AT GROUND IDLE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Next page: https://openairdocs.org/model/eurocopter-canada-bo-105ls-a-3/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 aircraft_model_key = 'BO105LSA3'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/eurocopter-canada-bo-105ls-a-3/reports

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