# Eurocopter/Canada BO 105LS A-3

- Type: Aircraft model (FAA registry)
- Registry code: 8680965
- Manufacturer (registry): EUROCOPTER/CANADA
- Model: BO 105LS A-3
- Aircraft type: Rotorcraft
- Category: Rotorcraft
- Engines: 2 · Turbo-shaft
- Seats: 6
- Weight class: Up to 12,499 lb
- Certification: Type certificated
- Data sheet: [TCDS H3EU](https://openairdocs.org/tcds/H3EU) (OpenAirDocs)
- Holder: Airbus Helicopters Deutschland GmbH (AHD)
- Registered aircraft: 4
- Page: https://openairdocs.org/model/eurocopter-canada-bo-105ls-a-3

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [AD 2025-25-05](https://openairdocs.org/ad/2025-25-05): Rotorcraft Flight Control · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105S and 6 more. Effective Dec 31, 2025
- [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07): Emergency Equipment; Emergency Flotation Section · Apical Emergency Float Kit, P/N 20498 (STC SR00780LA or 12 others). Effective Dec 5, 2024
- [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023
- [AD 2023-03-01](https://openairdocs.org/ad/2023-03-01): Main Rotor System · ECD Superlifter Conversion Kit 105-800331 (Eurocopter Deutschland STC SR00043RD). Effective Feb 21, 2023
- [AD 2022-24-07](https://openairdocs.org/ad/2022-24-07): Main Rotor Drive System · ECD Superlifter Conversion Kit 105-800331 (Eurocopter Deutschland STC SR00043RD). Effective Jan 6, 2023
- [AD 2021-13-14](https://openairdocs.org/ad/2021-13-14): Cabin Equipment/Furnishings · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-3 and 1 more. Effective Aug 17, 2021
- [AD 2021-10-21](https://openairdocs.org/ad/2021-10-21): Main Rotor System · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-3 and 9 more. Effective Jul 7, 2021
- [AD 2021-07-08](https://openairdocs.org/ad/2021-07-08): Main Rotor Mast/Swashplate · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 2 more. Effective Apr 30, 2021
- [AD 2017-05-03](https://openairdocs.org/ad/2017-05-03): Main Rotor Blade · Airbus Helicopters Deutschland BO-105C, BO-105LS A-3 and BO-105S. Effective Mar 17, 2017
- [AD 2013-16-13](https://openairdocs.org/ad/2013-16-13): Tail Rotor Head · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 8 more. Effective Sep 27, 2013
- [AD 2013-16-06](https://openairdocs.org/ad/2013-16-06): Main Rotor Blades · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 2 more. Effective Sep 13, 2013
- [AD 2013-11-15](https://openairdocs.org/ad/2013-11-15): Main Rotor Control · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 14 more. Effective Jul 26, 2013
- [AD 2012-13-11](https://openairdocs.org/ad/2012-13-11): Tail Rotor Head · Airbus Helicopters Deutschland BO-105LS A-3, MBB-BK 117 A-1, MBB-BK 117 A-3 and 5 more. Effective Aug 7, 2012
- [AD 2011-25-01](https://openairdocs.org/ad/2011-25-01): Liferafts · Agusta AB412, AB412 EP, 206A and 23 more. Effective Jan 17, 2012
- [AD 2006-15-14](https://openairdocs.org/ad/2006-15-14): Fixed bolts and nuts, main rotor nuts · Airbus Helicopters Deutschland BO-105LS A-3. Effective Aug 31, 2006
- [AD 2000-18-13](https://openairdocs.org/ad/2000-18-13): Tension-Torsion (TT) Strap · Airbus Helicopters Deutschland BO-105LS A-3. Effective Oct 19, 2000
- [AD 92-11-01](https://openairdocs.org/ad/92-11-01): Torque Indication Hose Assembly · Airbus Helicopters Deutschland BO-105LS A-3. Effective Aug 28, 1992
- [AD 87-26-02 R1](https://openairdocs.org/ad/87-26-02-R1): Main Rotor Control Rods · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 2 more. Effective Sep 26, 1989
- [AD 87-09-03](https://openairdocs.org/ad/87-09-03): Rotor Blade Bolts · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 6 more. Effective Aug 26, 1988
- [AD 87-19-01](https://openairdocs.org/ad/87-19-01): Stc Sh479gl Labels · Lubrication oil scavenge filter is installed in the existing… (Facet Filter Products STC SH1853SO or 3 others). Effective Dec 18, 1987

Historical (superseded or no longer in force):

- [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021
- [AD 2021-10-14](https://openairdocs.org/ad/2021-10-14) (historical): Main Rotor System · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-3 and 1 more. Effective Jun 24, 2021
- [AD 2019-07-07](https://openairdocs.org/ad/2019-07-07) (historical): Main Rotor System · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-3 and 9 more. Effective May 24, 2019
- [AD 2016-25-14](https://openairdocs.org/ad/2016-25-14) (historical): Main Rotor System · Airbus Helicopters Deutschland BO-105LS A-3. Effective Jan 31, 2017
- [AD 99-20-13](https://openairdocs.org/ad/99-20-13) (historical): TT Strap · Eurocopter Canada BO 105 LS A-3. Effective Nov 2, 1999
- [AD 97-26-02](https://openairdocs.org/ad/97-26-02) (historical): Main Rotor Mast Flange Crack Inspection · Airbus Helicopters Deutschland BO-105A, BO-105C, BO-105LS A-1 and 2 more. Effective Dec 31, 1997

## Information bulletins (advisory) (1)

- [SAIB SW-12-45](https://openairdocs.org/saib/SW-12-45): Garmin Model 400W/500W Series GPS-WAAS Navigation System. Issued Oct 3, 2012

## Registered aircraft (4)

- [N105SD](https://openairdocs.org/aircraft/N105SD): [Heli Flite Inc](https://openairdocs.org/faa-owner/HELI%20FLITE%20INC), [Corona, CA](https://openairdocs.org/faa-place/CA/Corona), built 1998, S/N 2052
- [N38VA](https://openairdocs.org/aircraft/N38VA): [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC), [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola), built 1993, S/N 2040
- [N477CS](https://openairdocs.org/aircraft/N477CS): [Spearfish, SD](https://openairdocs.org/faa-place/SD/Spearfish), built 1994, S/N 2045, Registration pending
- [N478CS](https://openairdocs.org/aircraft/N478CS): [Spearfish, SD](https://openairdocs.org/faa-place/SD/Spearfish), built 1998, S/N 2053, Registration pending

## NTSB investigations

None matched to aircraft with this model.

## FAA accident and incident reports

None matched to aircraft with this model.

## Service difficulty reports (99, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR CA140106009](https://openairdocs.org/sdr/CA140106009), Jan 6, 2014: BLADE. DEBONDED. (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 1
- [SDR 2008FA0000890](https://openairdocs.org/sdr/2008FA0000890), Nov 19, 2008: BEARING. CRACKED. 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 T
- [SDR 2008FA0000889](https://openairdocs.org/sdr/2008FA0000889), Nov 19, 2008: PINION GEAR. DEFORMED. 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 BEGIN
- [SDR 09152007TB](https://openairdocs.org/sdr/09152007TB), Sep 15, 2007: NONE. NONE. THE EMS FLIGHT WAS ENROUTE WITH PATIENT ON BOARD, CREW HEARD LOUD BAND SOUND OUTSIDE OF AIRCRAFT, NO INSTRUMENTATION WARNINGS, PILOT ELECTED PRECAUTIONARY LANDI
- [SDR 105102006TB](https://openairdocs.org/sdr/105102006TB), Oct 11, 2006: PRESSURE SWITCH. INOPERATIVE. 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 T
- [SDR B652006F00000](https://openairdocs.org/sdr/B652006F00000), Apr 13, 2006: BOLT. SHEARED. 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 SH
- [SDR B652005F00000](https://openairdocs.org/sdr/B652005F00000), May 20, 2005: SWITCH. STUCK. 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 POSITIO
- [SDR CA040407009](https://openairdocs.org/sdr/CA040407009), Apr 7, 2004: HOUSING. CRACKED. (CAN) DURING TESTING THE ACTUATOR SHOWED HIGH INTERNAL LEAKAGE. AFTER INVESTIGATION IT WAS DISCOVERED THAT THE HOUSING WAS CRACKED INTERNALLY. THE CRACK IS IN T
- [SDR BRM2003F00000](https://openairdocs.org/sdr/BRM2003F00000), Aug 5, 2003: SENSOR. FAILED. 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
- [SDR BRM2001F00002](https://openairdocs.org/sdr/BRM2001F00002), Nov 14, 2001: PUMP. INOPERATIVE. 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
- [SDR B652001F00000](https://openairdocs.org/sdr/B652001F00000), Jul 6, 2001: SKIN. CRACKED. 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. CR
- [SDR 2001F00245](https://openairdocs.org/sdr/2001F00245), Jun 23, 2001: ENGINE. FAILED. 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. S
- [SDR T212003F00000](https://openairdocs.org/sdr/T212003F00000), Jun 22, 2001: STRUCTURE. CRACKED. 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
- [SDR BRM2001F00000](https://openairdocs.org/sdr/BRM2001F00000), May 25, 2001: WARNING LIGHT. ACTIVATED. 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 MANUA
- [SDR 20000413SH051](https://openairdocs.org/sdr/20000413SH051), Feb 15, 2000: INDICATOR. READS HIGH. MAST INDICATOR OUT OF CALIBRATION. READING HIGH SETTING OF LIGHT. REMOVED AND REPLACED. (X)
- [SDR 20000413SH012](https://openairdocs.org/sdr/20000413SH012), Feb 15, 2000: TRANSMITTER. READS HIGH. TORQUE TRANSMITTER OUT OF CALIBRATION. READING HIGH SETTING OF LIGHT. REMOVED AND REPLACED. (X)
- [SDR 20000406SH029](https://openairdocs.org/sdr/20000406SH029), Dec 23, 1999: BLADE. UNBONDED. BLADE WAS COMING UNSTACKED IN-FLIGHT. REMOVED AND REPLACED. (X)
- [SDR 20000406SH028](https://openairdocs.org/sdr/20000406SH028), Dec 23, 1999: BLADE. DAMAGED. BLADE WOULD NOT BALANCE WITH OPPOSITE BLADE. REMOVED AND REPLACED. (X)
- [SDR 2000ZZZX787](https://openairdocs.org/sdr/2000ZZZX787), Nov 15, 1999: SWITCH. INOPERATIVE. SWITCH INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 2000ZZZX788](https://openairdocs.org/sdr/2000ZZZX788), Nov 5, 1999: SWITCH. INOPERATIVE. SWITCH INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 99ZZZX4575](https://openairdocs.org/sdr/99ZZZX4575), Nov 3, 1999: HYDRAULIC PACK. LEAKING. 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), Sep 12, 1999: SWITCH. FAILED. UNIT FAILED AFTER 203.9 HOURS OF USE. REMOVED AND REPLACED.
- [SDR 99ZZZX2839](https://openairdocs.org/sdr/99ZZZX2839), Jun 25, 1999: DAMPENER. FAILED. 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 CUR
- [SDR 99ZZZX3212](https://openairdocs.org/sdr/99ZZZX3212), Jun 19, 1999: TRANSMITTER. FAILED. TERMINAL BROKEN. REF: MCN 108. REMOVED AND REPLACED.
- [SDR 99ZZZX3296](https://openairdocs.org/sdr/99ZZZX3296), Jun 6, 1999: ENGINE. MALFUNCTIONED. 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 PRES
- [SDR 99ZZZX2877](https://openairdocs.org/sdr/99ZZZX2877), May 21, 1999: TRANSCEIVER. FAILED. TRANSCEIVER WILL NOT TRANSMIT OR RECEIVE. REF: MCN 75. REMOVED AND REPLACED.
- [SDR 99ZZZX2870](https://openairdocs.org/sdr/99ZZZX2870), May 21, 1999: SWITCH. INOPERATIVE. OIL PRESSURE SWITCH INOPERATIVE. REMOVED AND REPLACED.
- [SDR 99ZZZX2898](https://openairdocs.org/sdr/99ZZZX2898), Apr 29, 1999: MIXING VALVE. INPERATIVE. VALVE WILL NOT OPEN. REF: RMA NR R019843 (MCN 44). REMOVED AND REPLACED.
- [SDR 99ZZZX2899](https://openairdocs.org/sdr/99ZZZX2899), Apr 23, 1999: MIXING VALVE. INOPERATIVE. MIXING VALVE WILL NOT OPERATE. REF: RMA NR R019777 (MCN 43). REMOVED AND REPLACED.
- [SDR 99ZZZX3873](https://openairdocs.org/sdr/99ZZZX3873), Feb 13, 1999: TRANSMITTER. MALFUNCTIONED. TUBE SEPARATED FROM SENDING UNIT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 99ZZZX1269](https://openairdocs.org/sdr/99ZZZX1269), Jan 29, 1999: BLADE. PEELING. PAINT ON BLADE PEELING AFTER ONLY 420.7 HOURS SINCE REPAIR. REMOVED AND REPLACED.
- [SDR 99ZZZX1268](https://openairdocs.org/sdr/99ZZZX1268), Jan 29, 1999: BLADE. PEELING. PAINT PEELING ON BLADE AFTER ONLY 420.7 HOURS SINCE REPAIR. REMOVED AND REPLACED.
- [SDR 99ZZZX3874](https://openairdocs.org/sdr/99ZZZX3874), Jan 19, 1999: SWITCH. INOPERATIAVE. SWITCH INOPERATIVE. FAILS TO ILLUMINATE PRESSURE LIGHT. LIGHT FLICKERS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 99ZZZX1272](https://openairdocs.org/sdr/99ZZZX1272), Oct 31, 1998: INDICATOR. STICKS. NR 1 NEEDLE HANGS UP. RMA NR R017687. REMOVED AND REPLACED.
- [SDR 99ZZZX850](https://openairdocs.org/sdr/99ZZZX850), Sep 7, 1998: SWITCH. INOPERATIVE. 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), Jul 13, 1998: WINDOW. DEPARTED. 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 LOCA
- [SDR 98ZZZX2523](https://openairdocs.org/sdr/98ZZZX2523), Jun 23, 1998: SHAFT. DEFECTIVE. 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), Jun 23, 1998: SHAFT. DEFECTIVE. 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), Jun 7, 1998: TANK. LEAKING. FUEL TANK LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1888](https://openairdocs.org/sdr/98ZZZX1888), Apr 3, 1998: SWITCH. FAILED. 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), Mar 17, 1998: CONTROL UNIT. MALFUNCTIONED. CONTROL MALFUNCTION, ROLL FEEDBACK DURING FLIGHT AND PITCH INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1576](https://openairdocs.org/sdr/98ZZZX1576), Mar 16, 1998: TRANSMITTER. ERRATIC. FUEL PRESSURE TRANSMITTER IS ERRATIC. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1574](https://openairdocs.org/sdr/98ZZZX1574), Feb 26, 1998: SWITCH. FAILED. 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), Feb 16, 1998: BUSHING. WORN. ENGINE MOUNT BUSHING'S ELASTOMERICS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1512](https://openairdocs.org/sdr/98ZZZX1512), Jan 29, 1998: AUDIO PANEL. DEFECTIVE. AUDIO PANEL SELECT KNOB INOPERATIVE. REMOVED AND REPLACED.
- [SDR 98ZZZX1573](https://openairdocs.org/sdr/98ZZZX1573), Jan 8, 1998: BEARING. WORN. TAIL ROTOR BEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH 2 EACH NEW UNITS, CORRECTED PROBLEM.
- [SDR 98ZZZX1575](https://openairdocs.org/sdr/98ZZZX1575), Jan 5, 1998: SWITCH. FAILED. 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), Jan 2, 1998: INDICATOR. STICKS. DUAL TORQUE INDICATOR NEEDLES STICK. REPLACES WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1571](https://openairdocs.org/sdr/98ZZZX1571), Dec 2, 1997: BEARING. WORN. BEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 98ZZZX1572](https://openairdocs.org/sdr/98ZZZX1572), Nov 30, 1997: SWITCH. FAILED. OIL PRESSURE WARNING SWITCH INOPERATIVE. LOW PRESSURE LIGHT 'ON' IN-FLIGHT AND AT GROUND IDLE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

All 99: https://openairdocs.org/model/eurocopter-canada-bo-105ls-a-3/reports.md

## STCs that may be installed (OpenAirDocs) (23)

Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SR00643SE](https://openairdocs.org/stc/SR00643SE): Installation of Geneva Aviation Video System. Turbolyft USA Corporation
- [STC SR02301SE](https://openairdocs.org/stc/SR02301SE): Installation of Geneva Aviation 28 - 14 VDC Power Converter. AEM USA Inc
- [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc
- [STC SR01694SE](https://openairdocs.org/stc/SR01694SE): Fabrication of Onboard Systems Models 200-302-00 and 200-387-00 Talon LC Hydraulic Cargo Hook Kits without Load Weigh and Models 200-303-00 and 200-388-00 Talon LC Hydraulic Cargo Hook Kits with Load Weigh. Onboard Systems International
- [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC
- [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies
- [STC SR00910SE](https://openairdocs.org/stc/SR00910SE): Replacement of the original landing gear skid tubes with DART Model D105-674-011 skid tubes. Dart Aerospace USA Inc
- [STC SR02487AK](https://openairdocs.org/stc/SR02487AK): Installation of L-3 Communications Avionics Systems ESI-500 Standby Instrument System. ADS-B Technologies, LLC
- [STC SR02475AK](https://openairdocs.org/stc/SR02475AK): Installation of the Lexavia Integrated Systems LFS3500 Enhanced Vision System (EVS) on Part 27 Airbus Helicopters equipped with a panel-mounted Multi-Function Display (MFD), primary navigational display or dedicated display with the ability to display video imagery. Lexavia Integrated Systems
- [STC SR02470AK](https://openairdocs.org/stc/SR02470AK): Installation of the L-3 Communications NGT -1000/2000/2500 ADS-B System. ADS-B Technologies, LLC
- [STC SR02471AK](https://openairdocs.org/stc/SR02471AK): Installation of the L-3 Communications NGT -9000/9000R ADS-B System. ADS-B Technologies, LLC
- [STC SR02394AK](https://openairdocs.org/stc/SR02394AK): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system. Seaplanes North LLC
- [STC SR00062NY](https://openairdocs.org/stc/SR00062NY): Installation of Emergency Medical Oxygen System. Sikorsky Aircraft Corporation
- [STC SH664NE](https://openairdocs.org/stc/SH664NE): Installation of a medical interior and life support equipment. Sikorsky Aircraft Corporation
- [STC SH5253NM](https://openairdocs.org/stc/SH5253NM): Installation of Air Comm Corporation Cabin Heating and Ventilation system. Air Comm Corporation
- [STC SR09221RC](https://openairdocs.org/stc/SR09221RC): Replacement of main, aft, and supply fuel tanks. Apical Industries, Inc. dba Dart Aerospace
- [STC SR03449NY](https://openairdocs.org/stc/SR03449NY): Installation of a Sky Trac ISAT-200 Airborne Position/Data Communicator. Sky Trac Systems Ltd
- [STC SR01546SE](https://openairdocs.org/stc/SR01546SE): Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc
- [STC SR02148AK](https://openairdocs.org/stc/SR02148AK): Fabrication and installation of Airglas Engineering Company, Inc., P/N L8500-BO105 ski kit. Airglas Inc
- [STC SR03027CH](https://openairdocs.org/stc/SR03027CH): Installation of Air Ambulance Unit in accordance with Ocean Air Master Data List, Report AC-BO105, Revision Original, Dated February 1st 2011 or later FAA Approved Revision. Ocean Air Aviation
- [STC SR00043RD](https://openairdocs.org/stc/SR00043RD): Installation of an ECD Superlifter Conversion Kit 105-800331 (main rotor blades, tall rotor blades, and modification to the hydraulic system for a power boost of the collective controls). Eurocopter Deutschland GmbH
- [STC SA2629NM](https://openairdocs.org/stc/SA2629NM): Installation of a retractable antenna mechanism and UHF or microwave antenna on right hand skid. AAR Aircraft Services Inc
- [STC SH2629NM](https://openairdocs.org/stc/SH2629NM): Install a retractable antenna mechanism and UHF or microwave antenna on right hand skid. AAR Oklahoma Inc

## PMA parts (OpenAirDocs) (320, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this model on its data sheet, so check the FAA record before relying on it. Newest first.

- [WF336342](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114383300120250602133028.0001): Filter Element, Lube. Donaldson Company Inc · PMA PQ2432CE · Replaces 038088-08, P-1050 · May 23, 2025
- [80-0533-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175649769320260224114046.0001): PANEL, ANNUNCIATOR. ONTIC Engineering & Manufacturing Inc · PMA PQ1398NM · Replaces 80-0533-3 · Jan 23, 2025
- [B6618GA1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110036523520260224114047.0001): LIGHT, INSTRUMENT - FIXTURE ASSY. ONTIC Engineering & Manufacturing Inc · PMA PQ1398NM · Replaces B6618GA1 · Jan 23, 2025
- [200-387-00200-387-10](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165136337820220811112124.0001): Cargo Hook Kit. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022
- [200-388-00200-388-10](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142799567720220811112125.0001): Cargo Hook Kit with Load Weigh. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022
- [200-303-00200-303-10](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141508459520220811112124.0001): Cargo Hook Kit with Load Weigh. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022
- [200-302-00200-302-10](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140133607220220811112123.0001): Cargo Hook Kit. Onboard Systems International · PMA PQ0055NM · Modification part · Jul 28, 2022
- [01-0790906-00](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142343925320220610124249.0001): LED Landing Light. Whelen Aerospace Technologies · PMA PQ1372CE · Modification part · Jun 6, 2022
- [2200850-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135589604020220624165457.0001): Environmental Control Unit Outline. Honeywell International Inc. · PMA PQ1222NM · Replaces 2200850-3 · Feb 15, 2022
- [189892-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID126070444620220624165455.0001): Heat Exchanger Assy Cooling Turbine. Honeywell International Inc. · PMA PQ1222NM · Replaces 189892-1 · Feb 15, 2022
- [2200850-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109109919820220624165456.0001): Environmental Control Unit Outline. Honeywell International Inc. · PMA PQ1222NM · Replaces 2200850-2 · Feb 15, 2022
- [RS16-001](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132529939020260311205440.0001): RelaySwitch Box. Chelton Avionics Inc. dba Canyon Aeroconnect · PMA PQ2204NM · Replaces RS16-001 · Nov 1, 2021
- [NOHIPOT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173518741320240320173403.0001): Decal. Augusta Aero Innovations LLC · PMA PQ04441CE · Replaces 06-201020 · Oct 6, 2020
- [NOHIPOT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152061463920240320173409.0001): Decal. Augusta Aero Innovations LLC · PMA PQ04441CE · Replaces 150SG1139 · Oct 6, 2020
- [MCG-1901](https://drs.faa.gov/browse/excelExternalWindow/8FF1F05D77C8510E862584740061230C.0001): Dampener Hub. Miraj Corporation · PMA PQ0870NE · Replaces 23032-1901 · Feb 24, 2019
- [M23032-2711](https://drs.faa.gov/browse/excelExternalWindow/4AF3A478C94705EA862582CF006DC0C8.0001): Dampener Plate. Miraj Corporation · PMA PQ0870NE · Replaces 23032-2711 · Jun 17, 2018
- [105-A0007-1](https://drs.faa.gov/browse/excelExternalWindow/E3566FDF4022223D8625822D0067497C.0001): Automatic Terminal Control. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-811011](https://drs.faa.gov/browse/excelExternalWindow/DFCE94033AE3F1828625822D0067496E.0001): Rescue Hoist. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-A0015-1](https://drs.faa.gov/browse/excelExternalWindow/DF1ADA1E3DCF95288625822D0067498D.0001): Second Air Speed Indicator. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-E0051-1](https://drs.faa.gov/browse/excelExternalWindow/CE03C73AA189EA658625822D00674983.0001): Forward Equipment Provisions. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-A0005](https://drs.faa.gov/browse/excelExternalWindow/B734C53DB89C48EA8625822D0067497A.0001): Second Artificial Horizon. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-A0003-1](https://drs.faa.gov/browse/excelExternalWindow/AF1408FEF7129E508625822D00674976.0001): No. 2 Navigation System. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-A0006-1](https://drs.faa.gov/browse/excelExternalWindow/955DBAF857F3D15E8625822D0067497B.0001): Radar Altimeter. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-A0008-1](https://drs.faa.gov/browse/excelExternalWindow/404725E877B5923A8625822D0067497D.0001): Communication Control. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-A0001-1](https://drs.faa.gov/browse/excelExternalWindow/35ADC22FFC6246C58625822D0067498A.0001): Communication. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-A0009](https://drs.faa.gov/browse/excelExternalWindow/34EB75465A85DEE78625822D0067497F.0001): Radio Magnetic Indicator. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-A0004-1](https://drs.faa.gov/browse/excelExternalWindow/3160FFE8D74B05DA8625822D00674979.0001): Automatic Direction Finder. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-E0053-1](https://drs.faa.gov/browse/excelExternalWindow/30D950E5885C61748625822D00674987.0001): Instrument Panel. Airbus Helicopters, Inc. · PMA PQ0333SW · Replaces 105-90701 · Jan 16, 2018
- [105-A0002-1](https://drs.faa.gov/browse/excelExternalWindow/16F40FF5102CEBC38625822D00674974.0001): No. 1 Navigation System. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-E0050-1](https://drs.faa.gov/browse/excelExternalWindow/1216321B4DE306E48625822D00674982.0001): Aft Equipment Provisions. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-E0052-1](https://drs.faa.gov/browse/excelExternalWindow/0B979D8EF1DE92398625822D00674985.0001): Center Console. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105-A0010-1](https://drs.faa.gov/browse/excelExternalWindow/0401E203E04C15EC8625822D00674981.0001): Radio Master. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [105A82-0002-01](https://drs.faa.gov/browse/excelExternalWindow/003E4B40A4607CF18625822D0067502A.0001): Nose Mounted Searchlight. Airbus Helicopters, Inc. · PMA PQ0333SW · Modification part · Jan 16, 2018
- [2307490-1](https://drs.faa.gov/browse/excelExternalWindow/E01A9642D91F3E14862581F70079C01E.0001): LED Landing/ Recognition Light. Teledyne Reynolds · PMA PQ4015NM · Replaces 4580 · Jun 20, 2017
- [200-303-10](https://drs.faa.gov/browse/excelExternalWindow/EEE1AD0D073B0AF7862581060058B9F4.0001): Cargo Hook Kit with Load Weigh. Onboard Systems International · PMA PQ0055NM · Modification part · Mar 1, 2017
- [200-388-10](https://drs.faa.gov/browse/excelExternalWindow/9B4B6137BB1E7C00862581060058BB5C.0001): Cargo Hook Kit with Load Weigh. Onboard Systems International · PMA PQ0055NM · Modification part · Mar 1, 2017
- [200-302-10](https://drs.faa.gov/browse/excelExternalWindow/0B1F6D7F62E92A13862581060058B9B2.0001): Cargo Hook Kit. Onboard Systems International · PMA PQ0055NM · Modification part · Mar 1, 2017
- [200-387-10](https://drs.faa.gov/browse/excelExternalWindow/020BD29CB557D369862581060058BA3A.0001): Cargo Hook Kit. Onboard Systems International · PMA PQ0055NM · Modification part · Mar 1, 2017
- [150SG1052-14EH](https://drs.faa.gov/browse/excelExternalWindow/BC96C120506BDC458625808800591142.0001): Bearing - Ball. Seginus Inc · PMA PQ4083CE · Replaces APC 150SG1052-14 · Dec 6, 2016
- [MDL-105004-3](https://drs.faa.gov/browse/excelExternalWindow/6FEB3CC316CBC2C88625808F005CFBE6.0001): Supplemental Lighting System. Aviation Specialties Unlimited Inc · PMA PQ2538NM · Modification part · Nov 6, 2016
- [02-1104-0006](https://drs.faa.gov/browse/excelExternalWindow/9B5D6E2603F02B5686257FC0005B7F90.0001): Cable Assembly. B/E Aerospace Inc · PMA PQ2636CE · Replaces 02-1104-0006 · May 23, 2016
- [02-1106-1100](https://drs.faa.gov/browse/excelExternalWindow/85C048A78FFA1B0586257FC0005B8007.0001): Cable Assembly. B/E Aerospace Inc · PMA PQ2636CE · Replaces 02-1106-1100 · May 23, 2016
- [03-1100-0002](https://drs.faa.gov/browse/excelExternalWindow/760C2859290935D286257FC0005B80D9.0001): Strobe Lights White. B/E Aerospace Inc · PMA PQ2636CE · Replaces 03-1100-0002 · May 23, 2016
- [02-1104-0006](https://drs.faa.gov/browse/excelExternalWindow/EA7CA9DFF051F44086257FB800566F34.0001): Cable Assembly. B/E Aerospace Inc · PMA PQ2636CE · Replaces 02-1104-0006 · May 2, 2016
- [02-1106-1100](https://drs.faa.gov/browse/excelExternalWindow/72D1C28143EBF28B86257FB800566F39.0001): Cable Assembly. B/E Aerospace Inc · PMA PQ2636CE · Replaces 02-1106-1100 · May 2, 2016
- [Per ERA Aviation Drawing List 10528-6000](https://drs.faa.gov/browse/excelExternalWindow/8E5B71B3A4A9E88086257EF9006A6D14.0001): Supply Fuel Tanks. APICAL INDUSTRIES, INC. dba DART AEROSPACE · PMA PQ1886NM · Modification part · Oct 21, 2015
- [30101103](https://drs.faa.gov/browse/excelExternalWindow/F570C414BBC1E34986257E0E0062F73D.0001): Fire Extinguisher. Meggitt Safety Systems Inc · PMA PQ0303NM · Replaces 30101103 · Feb 18, 2015
- [35200100](https://drs.faa.gov/browse/excelExternalWindow/A697C3986240829A86257E0E0062F73E.0001): Installation Tee Double Check. Meggitt Safety Systems Inc · PMA PQ0303NM · Replaces 35200100 · Feb 18, 2015
- [18602](https://drs.faa.gov/browse/excelExternalWindow/13085D9ED2EF99AA86257E0E0062F73C.0001): Discharge Indicator. Meggitt Safety Systems Inc · PMA PQ0303NM · Replaces 18602 · Feb 18, 2015
- [MDL CAL201](https://drs.faa.gov/browse/excelExternalWindow/4E5B53FD3EBE424086257DF70049F9D6.0001): Re-engine Kit. Aerometals · PMA PQ2112NM · Replaces MDL CAL201 · Jan 21, 2015

All of them: https://openairdocs.org/model/eurocopter-canada-bo-105ls-a-3/pma.md

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Messerschmitt-Bolkow-Blohm BO 105LS A-3](https://openairdocs.org/model/messerschmitt-bolkow-blohm-bo-105ls-a-3): 2 registered aircraft, registry code 5626020

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