# Service difficulty reports: N50293, cancelled Dec 5, 2008 A list on [N50293, cancelled Dec 5, 2008](https://openairdocs.org/deregistered/N50293-2008-12-05.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR HEEA109563](https://openairdocs.org/sdr/HEEA109563.md): Engine · malfunctioned · May 26, 2006 · N50293 · Bolkms BO105S · Engine (Turbine/Turboprop) > DURING TAKEOFF FROM VR245 THE NR 2 ENGINE BEGAN A LOUD POPPING NOISE AND THE NR 2 ENGINE TOT BEGAN INCREASING. RETURNED TO VR245 UNEVENTFULLY. MAINTENANCE FOUND THE ENGINE INTAKE WAS PARTIALLY BLOCKED BY A PLASTIC CAN LID. THE ENGINE WAS REPLACED. - [SDR HEEA088638](https://openairdocs.org/sdr/HEEA088638.md): Battery · discharged · Jul 29, 2003 · N50293 · Bolkms BO105S · Battery/Charger System > BATTERY OUT LIGHTS CAME ON. SHOP REPAIR. - [SDR HEEA084000](https://openairdocs.org/sdr/HEEA084000.md): Drive Shaft · worn · Jan 13, 2003 · N50293 · Bolkms BO105S · Tail Rotor Drive Shaft > TAIL ROTOR DRIVE SHAFT WORN EXCESSIVELY. - [SDR HEEA082633](https://openairdocs.org/sdr/HEEA082633.md): Case · corroded · Dec 11, 2002 · N50293 · Bolkms BO105S · Main Rotor Gearbox > LOWER TRANSMISSION CASE CORRODED AT ATTACHMENT FLANGE. REPAIRED. - [SDR HEEA082620](https://openairdocs.org/sdr/HEEA082620.md): Shaft · damaged · Dec 11, 2002 · N50293 · Bolkms BO105S · Tail Rotor Gearbox > TAIL ROTOR GEARBOX SHAFT HAS PLATING PEELING. REPAIRED. - [SDR HEEA082614](https://openairdocs.org/sdr/HEEA082614.md): Shaft · peeling · Dec 11, 2002 · N50293 · Bolkms BO105S · Tail Rotor Drive Shaft > TAIL ROTOR DRIVE SHAFT PLATING PEELING. REPAIRED. - [SDR HEEA080311](https://openairdocs.org/sdr/HEEA080311.md): Blade · damaged · Jun 25, 2002 · N50293 · Bolkms BO105S · Main Rotor Blades > THE OUTBOARD ABRASION STRIP HAS A HOLE PENETRATED THROUGH THE STRIP. - [SDR HEEA063418](https://openairdocs.org/sdr/HEEA063418.md): Starter · failed · Jul 29, 1999 · N50293 · Bolkms BO105S · Starter-Generator > UNABLE TO OBTAIN STARTING RPM. SENT TO CORPORATE SERVICE SUPPLY, INC. FOR OVERHAUL. - [SDR HEEA061802](https://openairdocs.org/sdr/HEEA061802.md): Indicator · fluctuates · Apr 6, 1999 · N50293 · Bolkms BO105S · Engine RPM Indicating System > RPM INDICATION NEEDLES STICKING AND FLUCTUATING. - [SDR 99ZZZX839](https://openairdocs.org/sdr/99ZZZX839.md): Line · failed · Feb 1, 1999 · N50293 · Bolkms BO105CBS · Air Distribution System > SHORTLY AFTER TAKEOFF WHEN AIR CONDITIONER WAS TURNED ON, THE PILOT HEARD A LOUD NOISE. RETURNED TO BASE AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND DUCT HOSE HAD BLOWN OFF. REPLACED SAME. REF: AIRESEARCH MANUAL 4-379, FIGURE 6, ITEM 20. - [SDR HEEA060436](https://openairdocs.org/sdr/HEEA060436.md): Transceiver · malfunctioned · Jan 25, 1999 · N50293 · Bolkms BO105S · VHF Communications System > TRANSCEIVER HAS LOW POWER AND SENSITIVITY ON HIGH END OF FREQUENCY BAND. - [SDR HEEA0016749](https://openairdocs.org/sdr/HEEA0016749.md): Fuel Cell · leaking · Nov 6, 1998 · N50293 · Bolkms BO105S · Fuel Storage > FUEL CELL LEAKING. - [SDR HEEA0016729](https://openairdocs.org/sdr/HEEA0016729.md): Altimeter · failed · Nov 6, 1998 · N50293 · Bolkms BO105S · Altimeter, Barometric/Encoder > ALTIMETER FAILED FRICTION ERROR TEST. - [SDR HEEA0016707](https://openairdocs.org/sdr/HEEA0016707.md): Indicator · sticking · Nov 6, 1998 · N50293 · Bolkms BO105S · Engine RPM Indicating System > TRANSMISSION PRESSURE INDICATOR STICKING. - [SDR HEEA0015945](https://openairdocs.org/sdr/HEEA0015945.md): Wheel · mismanufactured · Sep 3, 1998 · N50293 · Bolkms BO105S · Turbine Section > ENGINE REMOVED DUE TO COMPRESSOR OVERHAUL. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: MEASURED.006 INCH OVER BLUE PRINT SPECS. (6.190 INCH - 6.191 INCH) ON NR 1 WHEEL OUTSIDE DIAMETER. INSTALLED A NEW - [SDR HEEA0015777](https://openairdocs.org/sdr/HEEA0015777.md): Warning Box · malfunctioned · Aug 26, 1998 · N50293 · Bolkms BO105S · Main Rotor Indicating System > RPM WARNING LIGHT AND AUDIO ARE INTERMITTENTLY COMING ON. - [SDR HEEA0015155](https://openairdocs.org/sdr/HEEA0015155.md): Wheel · mismanufactured · Jul 13, 1998 · N50293 · Bolkms BO105S · Turbine Section > ENGINE REMOVED DUE TO COMPRESSOR OVERHAUL. TURBINE DISASSEMBLED DUE TO LOW POWER ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: MEASURED.006 INCH OVER BLUEPRINT SPECS (6.190-6.191) ON NR 1 WHEEL OUTSIDE DIAMETER. INSTALLED A NEW NR 1 WHEEL. - [SDR HEEA0014464](https://openairdocs.org/sdr/HEEA0014464.md): Servo Motor · inoperative · Jun 2, 1998 · N50293 · Bolkms BO105S · Fuel Controlling System > SERVO WILL NOT EXTEND OR RETRACT. - [SDR HEEA0014153](https://openairdocs.org/sdr/HEEA0014153.md): Valve · failed · May 11, 1998 · N50293 · Bolkms BO105S · Engine Oil Shutoff Valve > VALVE NOT OPENING. - [SDR HEEA0014044](https://openairdocs.org/sdr/HEEA0014044.md): Bearing · unbonded · Apr 29, 1998 · N50293 · Bolkms BO105S · Main Rotor Control > TEFLON LINER UNBONDED AND BEARING VERY STIFF. UNABLE TO MOVE INNER RACE. REPLACED WITH NEW BEARING. - [SDR HEEA0013643](https://openairdocs.org/sdr/HEEA0013643.md): Warn Sys · failed · Mar 26, 1998 · N50293 · Bolkms BO105S · Engine Oil Indicating System > T-OIL LIGHT WILL NOT GO OUT. - [SDR HEEA0012839](https://openairdocs.org/sdr/HEEA0012839.md): Compass · failed · Feb 5, 1998 · N50293 · Bolkms BO105S · Magnetic Compass > MAG COMPASS LEAKING. - [SDR HEEA0012067](https://openairdocs.org/sdr/HEEA0012067.md): Rpm Warning Box · intermittent · Nov 19, 1997 · N50293 · Bolkms BO105S · Main Rotor Indicating System > RPM WARN BOX COMES ON INTERMITTENTLY. - [SDR HEEA0011886](https://openairdocs.org/sdr/HEEA0011886.md): Encoder · failed · Nov 10, 1997 · N50293 · Bolkms BO105S · Altimeter, Barometric/Encoder > ALTITUDE ENCODER NO VALID OUTPUT. - [SDR HEEA0011551](https://openairdocs.org/sdr/HEEA0011551.md): Idicatorn · erratic · Oct 16, 1997 · N50293 · Bolkms BO105S · Engine EGT/TIT Indicating System > EXH TEMP INDICATOR ERRATIC AT MID UPPER RANGE. - [SDR HEEA0011460](https://openairdocs.org/sdr/HEEA0011460.md): N1 Coupling · wear · Oct 14, 1997 · N50293 · Bolkms BO105S · Turbine Section > ENGINE REMOVED DUE TO IMPELLER CYCLES: TURBINE DISASSEMBLED DUE TO N1 DRAG ON TEST CELL. UPON INSPECTION OF TURBINE PARTS NOTED: SPLINE WEAR BEYOND SERVICEABLE LIMITS ON N1 COUPLING SPLINE (FAILED NO GO GAUGE) INSTALLED A NEW N1 COUPLING. - [SDR HEEA0010613](https://openairdocs.org/sdr/HEEA0010613.md): Transmission · pitted · Aug 7, 1997 · N50293 · Bolkms BO105S · Main Rotor Gearbox > SCRAPPED THE FOLLOWING: (5 EA) AXLES P/N 4619204001- SCRAPPED DUE TO EXCESSIVE PITTING ON LOADED SURFACE. (1 EA) PINION P/N 44638302002 - SCRAPPED DUE TO GEAR TEETH SPALLING. (1 EA) BEARING P/N 4619303081 - SCRAPPED DUE TO SPALLING ON OUTER RACE &ROLLERS. - [SDR HEEA0010193](https://openairdocs.org/sdr/HEEA0010193.md): Clutch · worn · Jun 20, 1997 · N50293 · Bolkms BO105S · Engine/Transmission Coupling > FREEWHEEL CLUTCH WORN SPRAG RETAINER. - [SDR HAIHEEA9477](https://openairdocs.org/sdr/HAIHEEA9477.md): Transceiver · failed · Apr 23, 1997 · N50293 · Bolkms BO105S · ATC Transponder System > REPLY LIGHT WOULD NOT OPERATE. PERFORMED PRELIMINARY INSPECTION, FOUND REPLY LIGHT INOPERATIVE. REPLACED PHOTOCELL V301. REPAIRED. ALSO REPLACED DETERIORATED RESISTOR (R477). ADJUSTED PULSE WIDTH AND FREQUENCY, CLEANED WAFERS, PLACED IN FREEZER, HEATED AND - [SDR HEEA968591](https://openairdocs.org/sdr/HEEA968591.md): Gear Box · making metal · Nov 25, 1996 · N50293 · Bolkms BO105S · Tail Rotor Gearbox > INTERMEDIATE GR BOX MAKES METAL. - [SDR HEEA968338](https://openairdocs.org/sdr/HEEA968338.md): Indicator · sticks · Oct 14, 1996 · N50293 · Bolkms BO105S · Engine EGT/TIT Indicating System > INDICATOR NEEDLE INDICATES HIGH IN UPPER RANGE AND INTERMITTENTLY STICKS. - [SDR HEEA967767](https://openairdocs.org/sdr/HEEA967767.md): Indicator · reads low · Sep 3, 1996 · N50293 · Bolkms BO105S · Main Rotor Indicating System > NEEDLE INDICATES LOW OUT OF TOLERANCE. SENT TO MASCO FOR WARRANTY REPAIR. - [SDR HEEA967766](https://openairdocs.org/sdr/HEEA967766.md): Transmitter · defective · Sep 3, 1996 · N50293 · Bolkms BO105S · Main Rotor Indicating System > TORQUE NEEDLE INDICATES LOW OUT OF TOLERANCE. - [SDR HEEA967621](https://openairdocs.org/sdr/HEEA967621.md): Liner · cracked · Aug 2, 1996 · N50293 · Bolkms BO105S · Turbine Section > ENGINE REMOVED DUE TO LOW POWER. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKS BEYOND SERVICEABLE LIMITS ON #1 NOZZLE VANES AND CRACKED BEYOND SERVICEABLE LIMITS ON COMB. LINER SKIRT. REPLACED DISCREPANT PARTS. - [SDR HEEA967620](https://openairdocs.org/sdr/HEEA967620.md): Nozzle Vanes · cracked · Aug 2, 1996 · N50293 · Bolkms BO105S · Turbine Section > ENGINE REMOVED DUE TO LOW POWER. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: CRACKS BEYOND SERVICEABLE LIMITS ON #1 NOZZLE VANES AND CRACKED BEYOND SERVICEABLE LIMITS ON COMB. LINER SKIRT. REPLACED DISCREPANT PARTS. - [SDR HEEA967583](https://openairdocs.org/sdr/HEEA967583.md): Wheel · defective · Jul 16, 1996 · N50293 · Bolkms BO105S · Turbine Section > ENGINE REMOVED DUE TO LOW POWER. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: MINOR SULFIDATION ON ALL 1ST STAGE WHEEL BLADES. SCRAPPED 1ST STAGE WHEEL. - [SDR HEEA967481](https://openairdocs.org/sdr/HEEA967481.md): Indicator · wont test · Jun 24, 1996 · N50293 · Bolkms BO105S · Main Rotor Indicating System > INDICATOR WILL NOT TEST PROPERLY. - [SDR HEEA967480](https://openairdocs.org/sdr/HEEA967480.md): Transmitter · wont test · Jun 24, 1996 · N50293 · Bolkms BO105S · Main Rotor Indicating System > TRANSMITTER WILL NOT TEST PROPERLY. - [SDR HEEA966853](https://openairdocs.org/sdr/HEEA966853.md): Transceiver · failed · Mar 13, 1996 · N50293 · Bolkms BO105S · VHF Communications System > WOULD NOT RECEIVE OR TRANSMIT. FOUND CONNECTION ON E136 HAD A BURNT HOLE WITH CARBON BUILD UP ON IT. CLEANED BURNT HOLE AND HUMISEALED. REPAIRED. REPLACED BAD DISPLAY DS101. VOR BEARING OUT OF TOLERANCE. PERFORMED VOR/LOC CONVERTER ALIGNMENT, REPAIRED. - [SDR HEEA966551](https://openairdocs.org/sdr/HEEA966551.md): Pressure Switch · failed · Jan 29, 1996 · N50293 · Bolkms BO105S · Engine Oil Indicating System > SWITCH CONTACTS WILL NOT OPEN OR CLOSE. T-OIL LIGHT ILLUMINATED IN FLIGHT. - [SDR HEEA955574](https://openairdocs.org/sdr/HEEA955574.md): Receiver · defective · Aug 8, 1995 · N50293 · Bolkms BO105S · Automatic Direction Finder (ADF) System > DISPLAY FLICKERS. REPLACED DISPLAY REPAIRED. - [SDR HEEA955342](https://openairdocs.org/sdr/HEEA955342.md): Switch · malfunction · Jul 11, 1995 · N50293 · Bolkms BO105S · Engine Oil Pressure > SWITCH WILL NOT CLOSE. - [SDR HEEA955053](https://openairdocs.org/sdr/HEEA955053.md): Elt · wont test · May 19, 1995 · N50293 · Bolkms BO105S · Emergency Locator Beacon > ELT WILL NOT TEST. TIME SINCE REPAIR 64:35. - [SDR HEEA954184](https://openairdocs.org/sdr/HEEA954184.md): Wheel · sulfidation · Jan 21, 1995 · N50293 · Bolkms BO105S · Turbine Section > ENGINE REMOVED DUE TO COMBUSTION CASE BAFFLE BROKEN AND ERODED 1ST STAGE NOZZLE. UPON INSPECTION OF TURBINE PARTS NOTED THE FOLLOWING: MINOR SULFIDATION ON ALL 1ST STAGE WHEEL BLADES. SCRAPPED 1ST STAGE WHEEL. ## 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 n_number = 'N50293' AND deregistration_id = 'N50293-2008-12-05' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N50293-2008-12-05/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.