# Service difficulty reports: Messerschmitt BO105CBS

A list on [Messerschmitt BO105CBS](https://openairdocs.org/model/messerschmitt-bo105cbs.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 4 · 158 reports

- [SDR HDNA20160917012](https://openairdocs.org/sdr/HDNA20160917012.md): Engine · making metal · Sep 17, 2016 · N911WK · Bolkms BO105CBS · Engine (Turbine/Turboprop)
  > AT CRUISE, THE MAG PLUG 2 WARNING LIGHT ILLUMINATED. REDUCED POWER TO ESTABLISH A SUITABLE OEI CONDITION AND CALLED FOR THE APPLICABLE RFM EMERGENCY PROCEDURE CHECKLIST. AN ATTEMPT WAS MADE TO EXTINGUISH THE WARNING LIGHT WITH NO SUCCESS. PERFORMED A SINGLE EN
- [SDR HDNA2016031600003](https://openairdocs.org/sdr/HDNA2016031600003.md): Skin · cracked · Mar 16, 2016 · N911BN · Bolkms BO105CBS · Rotorcraft Tail Boom
  > TOP SKIN, PN 105-30251.57, OF TAIL BOOM, FOUND CRACKED DURING INSPECTION. CRACK IS LOCATED ON LT SIDE TOP SKIN, RT BEFORE THE VERTICAL FIN TRANSITION ON THE TAIL BOOM. REPLACED TAIL BOOM WITH SERVICEABLE.
- [SDR EOPA20121002494](https://openairdocs.org/sdr/EOPA20121002494.md): Frame · cracked · Oct 2, 2012 · N494HL · Bolkms BO105CBS · Rotorcraft Tail Boom
  > TAILBOOM FRAME 10L, FOUND CRACKED DURING INSPECTION.
- [SDR EOPA20111108492](https://openairdocs.org/sdr/EOPA20111108492.md): Stringer · cracked · Nov 4, 2011 · N492HL · Bolkms BO105CBS · Fuselage Main, Longeron/Stringer
  > TWO SMALL CRACKS IN TRANSMISSION DECK STRINGERS. LOCATED BETWEEN HYD PACK AND TRANSMISSION.
- [SDR 2011FA0000681](https://openairdocs.org/sdr/2011FA0000681.md): Indicator · false indication · Oct 9, 2011 · N7062X · Bolkms BO105CBS · Fuel Quantity Indicator
  > THE PORTION OF THE FUEL GAUGE THAT INDICATES FUEL LEVEL IN THE SUPPLY TANK WENT TO ZERO IN FLIGHT. PILOT HAD JUST CHECKED IT A FEW MINUTES BEFORE. THIS INDICATED A POSSIBILITY TO THE PILOT THAT THE MAIN TANK WAS NOT FEEDING TO THE SUPPLY TANK. THE SUPPLY TAN
- [SDR 2009FA0000376](https://openairdocs.org/sdr/2009FA0000376.md): Socket · loose · Apr 27, 2009 · Bolkms BO105CBS · Flight Compartment Lighting
  > LIGHT SOCKET WILL NOT STAY IN RECEPTACLE. FOUND CAUSE TO BE WORK CATCH OF ASSEMBLY. AGE COULD BE MAIN FACTOR, 27 YRS OLD. (K)
- [SDR U0GA2008090478074](https://openairdocs.org/sdr/U0GA2008090478074.md): Wire · broken · Sep 4, 2008 · N293EH · Bolkms BO105CBS · Fire Protection System Wiring
  > NR 2 ENGINE FIRE LIGHT ILLUMINATED IN FLIGHT. FOUND 2 BROKEN WIRES ON UPPER FIRE DETECTOR. REPLACED 2 TERMINAL ENDS AND OPS CHECK GOOD.
- [SDR U0GA119634](https://openairdocs.org/sdr/U0GA119634.md): Engine · inoperative · May 9, 2008 · N290EH · Bolkms BO105CBS · Engine (Turbine/Turboprop)
  > DURING APPROACH, ENGINE 2 MADE EXPLOSIVE SOUND, NG WENT TO 0 TORQUE WENT TO 0. FUEL SUPPLY WAS CUT OFF, ENGINE 1 WAS INCREASED TO MAX AND A RUN ON LANDING WAS MADE WITHOUT EVENT. TO RUNWAY 17.
- [SDR U0GA119633](https://openairdocs.org/sdr/U0GA119633.md): Engine · inoperative · May 9, 2008 · N290EH · Bolkms BO105CBS · Engine (Turbine/Turboprop)
  > UPON LANDING, ENGINE 2 MADE AND EXPLOSIVE SOUND. NG WENT TO 0 TORQUE WENT TO 0. FUEL SUPPLY TO ENGINE TO WAS CUT OFF, ENGINE 1 WAS INCREASED TO MAX POWER AND A SUCCESSFUL RUN ON LANDING WAS MADE ON RUNWAY 17.
- [SDR U0GA114547](https://openairdocs.org/sdr/U0GA114547.md): Terminal · unknown · Mar 19, 2007 · N291EH · Bolkms BO105CBS · Fire Detection
  > IN FLIGHT FROM GIBSON TO HOUMA
- [SDR HEEA111184](https://openairdocs.org/sdr/HEEA111184.md): Guide · unknown · Sep 14, 2006 · N851PH · Bolkms BO105CBS · Hydraulic System, Main
  > WHILE ENROUTE, HYD BLOCK AND HYD ONE LIGHTS ILLUMINATED. REPLACED GUIDE ASSY.
- [SDR U0GA110238](https://openairdocs.org/sdr/U0GA110238.md): Fire Detector · malfunctioned · Jul 11, 2006 · N298EH · Bolkms BO105CBS · Fire Detection
  > BEFORE TDP, FIRE LIGHT ENGINE NUMBER 2 ILLUMINATED, AFTER REJECTED TAKE-OFF AND LAND, LIGHT TURNED OFF.
- [SDR U0GA108621](https://openairdocs.org/sdr/U0GA108621.md): Fire Detector · illuminated · Apr 4, 2006 · N153EH · Bolkms BO105CBS · Fire Detection
  > DURING LANDING AT AN OFFSHORE PLATFORM THE #1 ENGINE FIRE LIGHT ILLUMINATED. A/C LANDED AND SHUT DOWN WITHOUT INCIDENT.
- [SDR HDNR200500002](https://openairdocs.org/sdr/HDNR200500002.md): Turbine Wheel · separated · Aug 9, 2005 · N911WK · Bolkms BO105CBS · Turbine Section
  > ENGINE LOST POWER IN FLIGHT. UPON INSPECTION OF THE TURBINE, THE 2ND STAGE TURBINE WHEEL WAS FOUND TO HAVE 1 BLADE MISSING WHICH SUBSEQUENTLY CAUSED SIGNIFICANT FOD DAMAGE TO THE 2ND, 3RD AND 4TH STAGE NOZZLES AND THE 3RD AND 4TH STAGE STAGE WHEELS AS WELL AS
- [SDR HDNR200500001](https://openairdocs.org/sdr/HDNR200500001.md): Housing · debonded · Aug 4, 2005 · N911E · Bolkms BO105CBS · Turbine Engine Accessory Drive
  > OIL NOT SCAVENGING. OIL EMPTIED FROM AIRCRAFT TANK TO ENGINE GEARBOX DURING GROUND OPERATION. FOUND THAT THE SEALANT THAT SOME OVERHAUL VENDORS PUT IN THE BACK OF THE LOWER RIGHT COMPRESSOR MOUNT INSERT, INSIDE THE GEARBOX HOUSING, HAD FALLEN OUT AND PLUGGED
- [SDR CA050614005](https://openairdocs.org/sdr/CA050614005.md): Housing · cracked · May 27, 2005 · Bolkms BO105CBS · Rotorcraft Servo System
  > (CAN) THIS UNIT WAS RECEIVED FROM THE USA FOR ROUTINE SERVICING/MAINTENACE. DURING DISASSEMBLY A CRACK WAS DISCOVERED BETWEEN THE LEE PLUG AND THE OPENING OF THE PISTON GUIDE.
- [SDR CA030811001](https://openairdocs.org/sdr/CA030811001.md): Freewheel Unit · failed · Aug 8, 2003 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) THIS TRANSMISSION RECEIVED FROM AN OPERATOR WITH PARTIAL DISASSEMBLY. LT FREEWHEEL CLUTCH SHATTERED. OUTER CAGE BROKEN IN ONE PLACE. INNER CAGE BROKEN IN TWO PLACES.ENERGIZING RIBBON BROKEN IN FOUR PLACES. FOUR SPRAGS DISLODGED FROM CLUTCH ASSY.
- [SDR CA030516005](https://openairdocs.org/sdr/CA030516005.md): Manifold · failed · May 16, 2003 · Bolkms BO105CBS · Hydraulic System, Main
  > (CAN) THIS UNIT WAS RECEIVED FOR REPAIR. DURING INCOMING FUNCTIONAL CHECK IT WAS NOTED THAT THE CHANGE OVER FROM SYSTEM 1 TO 2 WAS VERY SLUGGISH & STIFF. DISASSEMBLY OF THE VALVE BODY MANIFOLD REVEALED CORROSION INSIDE THE THREADED PLUGS OF BOTH SYSTEMS. THE M
- [SDR ERAA086448](https://openairdocs.org/sdr/ERAA086448.md): Bleed Valve · failed · Apr 25, 2003 · N133EH · Bolkms BO105CBS · Compressor Bleed Control
  > BLEED VALVE / COMPRESSOR STALL: OVERHAULED BLEED VALVE CHANGED NECESSARY PARTS..
- [SDR ERAA086447](https://openairdocs.org/sdr/ERAA086447.md): Bolt · worn · Apr 25, 2003 · N129EH · Bolkms BO105CBS · Main Rotor Blades
  > PRIMARY BLADE BOLTS ARE WORN. BOTTOM COVER CRACKED THROUGH BOLT THREADS BROKEN. DISSEMBLED AND CLEANED. PERFORMED VISUAL & NDT INSPECTIONS. SCRAPPED BOTTOM COVER & THROUGH BOLT. RETURNED SERVICEABLE PARTS TO STOCK. INSPECTED IAW BO-105 MM CH 12.
- [SDR ERAA086440](https://openairdocs.org/sdr/ERAA086440.md): Float · leaking · Apr 25, 2003 · N130EH · Bolkms BO105CBS · Emergency Flotation Section
  > 7 HOLES FOUND AS INDICATED ON BAG, PATCHED ALL PINHOLES IAW 25-60-95
- [SDR ERAA086436](https://openairdocs.org/sdr/ERAA086436.md): Gearbox · making metal · Apr 24, 2003 · N135EH · Bolkms BO105CBS · Turbine Engine Accessory Drive
  > GEARBOX MAKING METAL. 2 1/2 BEARING FAILED. OVERHAULED GEARBOX. COMPLIED WITH CEB A-1211 MAG PLUG INSP, CEB-A-1340 REMOVE PINION GEAR, CEB-A-1351, REPLACE OIL TUBE, CEB-1363 NEW DAMPER RING, CEB-A-1372 INSPECT DAMPER RING, AD 2001-24-12 PER CEB-A-1386.
- [SDR ERAA086435](https://openairdocs.org/sdr/ERAA086435.md): Governor · split · Apr 24, 2003 · Bolkms BO105CBS · Turbine Governor
  > DOES NOT KEEP SPEED CAUSING TORQUE SPLIT. OVERHAULED IAW HONEYWELL OHM FORM 15-1095A.
- [SDR ERAA086434](https://openairdocs.org/sdr/ERAA086434.md): Governor · malfunctioned · Apr 24, 2003 · N125EH · Bolkms BO105CBS · Turbine Governor
  > GOVERNOR HITS MAX STOP AT FULL BEEP WHEN COLLECTIVE IS UP. DROOPING, OVERSPEEDING EARLY, STIFF THROTTLE. REPAIRED AND TESTED IAW HONEYWELL OHM FORM 15-1095A.
- [SDR ERAA086433](https://openairdocs.org/sdr/ERAA086433.md): Nozzle · separated · Apr 11, 2003 · N130EH · Bolkms BO105CBS · Turbine Section
  > NR 2 NOZZLE HAS SEPARATION FROM INNER BAND.
- [SDR CA030405001](https://openairdocs.org/sdr/CA030405001.md): Bearing · spalled · Apr 1, 2003 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) GEARBOX RECEIVED FROM A CUSTOMER IN THE USA. RT INPUT SPLIT INNER RACE BEARING PEELING/SPALLING. METAL CONTAMINATION CAUSED DAMAGE TO OTHER INTERNAL BEARINGS.
- [SDR HDNA084070](https://openairdocs.org/sdr/HDNA084070.md): Case · cracked · Jan 31, 2003 · N915SH · Bolkms BO105CBS · Turbine Engine Compressor Section
  > ONE 4TH STAGE COMPRESSOR STATOR VANE BROKE OFF SEVERELY DAMAGING THE 4TH & 5TH STAGE COMPRESSOR BLADES WITH SUBSEQUENT COMPRESSOR STALLING AND LOW ENGINE POWER.
- [SDR CA030123004](https://openairdocs.org/sdr/CA030123004.md): Bearing · spinning · Jan 23, 2003 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) UNIT RECEIVED FROM THE USA. COLLECTOR GEAR ASSY BALL BEARING PN 4619303083 SPINNING IN BUSHING. INDICATION PICKED UP ON ELECTRICAL CHIP DETECTOR.
- [SDR CA021021006](https://openairdocs.org/sdr/CA021021006.md): Bearing · making metal · Oct 1, 2002 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) RT INPUT BEARING OUTER RACE PEELING/SPALLING.METAL PARTICLES FROM DAMAGED INPUT PINION.
- [SDR CA021021002](https://openairdocs.org/sdr/CA021021002.md): Bearing · peeling · Sep 18, 2002 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) BEARING OUTER RACE PEELING/SPALLING. METAL PARTICLES FROM BEARING DAMAGED INPUT PINION.
- [SDR CA021021004](https://openairdocs.org/sdr/CA021021004.md): Bearing · making metal · Aug 28, 2002 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) RECEIVED WITH REPORT OF METAL CONTAMINATION. TEARDOWN REVEALED SUBJECT BEARING HAD PEELING ON ONE BALL ONLY. AREA OF MATERIAL LOSS WAS 30 PERCENT.
- [SDR CA021021003](https://openairdocs.org/sdr/CA021021003.md): Bearing · peeling · Aug 28, 2002 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) BEARING PITTED AND PEELING
- [SDR ERAA080464](https://openairdocs.org/sdr/ERAA080464.md): Bolt · cracked · Jul 11, 2002 · N423EH · Bolkms BO105CBS · Main Rotor Blades
  > SECONDARY BLADE BOLTS CRACKED UNDER HEAD IN RADIUS. SCRAPPED 3 EA SECONDARY BLADE BOLTS FOR CRACKS IAW MBB BO-105 MAINTENANCE MANUAL CHAPTER 13.
- [SDR CA020507023](https://openairdocs.org/sdr/CA020507023.md): Bearing · spalled · Apr 1, 2002 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) REMOVED FOR METAL CONTAMINATION. DISASSEMBLED OUTER RACE OF BEARING AND IT SHOWS SIGNS OF EXCESSIVE PEELING 14.5 MM BY 78 MM,AREA 1131 SQ MM.
- [SDR CA020507024](https://openairdocs.org/sdr/CA020507024.md): Bearing · peeling · Mar 27, 2002 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) THIS TRANSMISSION RECEIVED FROM THE USA. REMOVED DUE TO METAL CONTAMINATION. ROLLER BEARING OUTER RACE SHOWED SIGNS OF EXCESSIVE PEELING. DAMAGE AREA 11 MM LONG BY 50 MM WIDE.
- [SDR CA020206002](https://openairdocs.org/sdr/CA020206002.md): Bearing · spalled · Feb 4, 2002 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) OUTER RACE AND TWO BALLS EXHIBIT SEVERE PEELING.TRUE INDICATION BY MAGNETIC PLUG.INTERNAL OIL PUMP FILTER CAPTURED NUMEROUS METAL FRAGMENTS.BEARING CAGE SEVERLY WORN AND SPREAD THROUGH OUT THE TRANSMISSION AS POWDER.
- [SDR R7MR35308](https://openairdocs.org/sdr/R7MR35308.md): Transmitter · inoperative · Jan 29, 2002 · N105LC · Bolkms BO105CBS · Engine Oil Pressure
  > PRESSURE TRANSMITTER, UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR CA011203005](https://openairdocs.org/sdr/CA011203005.md): Bearing · peeling · Dec 3, 2001 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) BOTH THE PLANETARY AXLE AND ROLLER BEARING PLATING PEELING.
- [SDR CA020103001](https://openairdocs.org/sdr/CA020103001.md): Bearing · spalled · Dec 1, 2001 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) GEARBOX RECEIVED FROM THE USA FOR INVESTIGATION OF METAL CONTAMINATION. UPON DISASSEMBLY THE SUBJECT BEARING SHOWS SIGNS OF EXCESSIVE PEELING ON ONE BALL, 75 PERCENT OF AREA AFFECTED. ANOTHER BALL ALSO STARTING TO PEEL. ONE HALF OF SPLIT INNER RACE HAD
- [SDR CA011126001](https://openairdocs.org/sdr/CA011126001.md): Bearing · damaged · Nov 22, 2001 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) OUTER AND INNER RACE OF BEARING DISPLAY MODERATE PITTING AND PEELING.ONE BALL DISPLAYS HEAVY PITTING
- [SDR CA011114017](https://openairdocs.org/sdr/CA011114017.md): Bearing · defective · Nov 14, 2001 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) BOTH INNER AND OUTER RACE OF BEARING DISPLAYED MODERATE PITTING AND PEELING
- [SDR CA011114016](https://openairdocs.org/sdr/CA011114016.md): Bearing · peeling · Nov 2, 2001 · Bolkms BO105CBS · Main Rotor Gearbox
  > (CAN) CHIP LIGHT INDICATION.GEARBOX DISASSEMBLED FOR INVESTIGATION.BEARING PLATING FOUND PEELING.REPLACED WITH NEW
- [SDR RYMA33656](https://openairdocs.org/sdr/RYMA33656.md): Transmission · failed · Aug 29, 2001 · N105LC · Bolkms BO105CBS · Main Rotor Gearbox
  > MAKING METAL. TWO PRIOR PROBLEMS WITH MM WERE REPAIRED UNDER WARRANTY BY MFG. REPLACED WITH NEW UNIT CORRECTED PROBLEM.
- [SDR 2001F00506](https://openairdocs.org/sdr/2001F00506.md): Transmission · making metal · Aug 29, 2001 · N105LC · Bolkms BO105CBS · Main Rotor Gearbox
  > MAIN ROTOR TRANSMISSION MAKING METAL. TWO PRIOR PROBLEMS WITH MM WERE REPAIRED UNDER WARRANTY BY ECL. REPLACED WITH NEW UNIT CORRECTED PROBLEM. (M)
- [SDR 2001F00565](https://openairdocs.org/sdr/2001F00565.md): Engine · flamed out · Aug 11, 2001 · N493HL · Bolkms BO105CBS · Engine (Turbine/Turboprop)
  > DURING POWER ASSURANCE CHECK, AT 1000 FEET AGL NR 1 ENGINE WAS PULLED OFFLINE. JUST POWER TO IDLE DETENT. NR 1 ENGINE FLAMED OUT. ATTEMPTED AIR START, ENGINE WOULD NOT START. AIRCRAFT WAS LANDED SINGLE ENGINE. AFTER THE LANDING, THE ENGINE WAS STARTED WI
- [SDR 2001F00604](https://openairdocs.org/sdr/2001F00604.md): Turbine Wheel · broken · Aug 3, 2001 · N5416F · Bolkms BO105CBS · Turbine Section
  > TURBINE RECEIVED FROM FIELD, REMOVED COMB CASE FOUND SULPHADATION ON NR 1 WHEEL. WHEEL HAS BROKEN BLADES DUE TO SULPHADATION. (M)
- [SDR R7MR33378](https://openairdocs.org/sdr/R7MR33378.md): Transmitter · failed · Apr 23, 2001 · N825LF · Bolkms BO105CBS · Engine Oil Pressure
  > UNIT INOPERATIVE. OIL PRESSURE GAUGE PEGGED HIGH. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.
- [SDR 20010517CW004](https://openairdocs.org/sdr/20010517CW004.md): Wire · broken · Apr 19, 2001 · N5416F · Bolkms BO105CBS · Fire Detection
  > WHILE HOVERING TO REFUELING POINT, WIRE BROKEN OFF AT A TERMINAL END FOR THE NR 1 LOWER SENSOR.
- [SDR 20010314CW001](https://openairdocs.org/sdr/20010314CW001.md): Fire Detector · shorted · Feb 18, 2001 · N5416F · Bolkms BO105CBS · Fire Detection
  > DURING PRESTART CHECK. AFT PROBE SHORTED TO ELBOW ON ENGINE AIR SYSTEM.
- [SDR R7MA78932441](https://openairdocs.org/sdr/R7MA78932441.md): Transmitter · inoperative · Nov 22, 2000 · N105LC · Bolkms BO105CBS · Engine Oil Pressure
  > OIL PRESSURE TRANSMITTER INOPERATIVE. NO PRESSURE INDICATION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

Next page: https://openairdocs.org/model/messerschmitt-bo105cbs/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 = 'BO105CBS'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/messerschmitt-bo105cbs/reports

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