Allison 250-C20B

Service difficulty reports · 1,981

Newest first. General aviation reporting is voluntary.

Query with SQL
duckdb -csv -c "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 = '250C20B'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR CA060808009Strut · cracked(CAN) DURING THE YEARLY INSPECTION, THE LT AFT LANDING GEAR STRUT WAS INSPECTED AND FOUND TO BE CRACKED, FROM THE LOWER DRAG BRACE ATTACH HOLE. THE CRACK WAS APPROX. 1.250 INCH LONG, AND EXTENDED LENGTHWISE TOWARDS THE BEND IN THE STRUT (TC NR 20060808009)Jul 3, 2006 · Hughes 369D · Main Landing Gear Strut/Axle/TruckSDR KBM2006F00217Sump · sticksFUEL SUMP, UNIT STICKS OPEN, REMOVED AND REPLACED. (K)Jun 21, 2006 · N73DP · Bell 206B · Fuel StorageSDR KBM2006F00218Pressure Switch · inoperativeSWITCH INOPERATIVE, CAUTION LIGHT FOR FUEL PRESSURE, DID NOT ILLUMINATE WHEN AFT SWITCH IS IN OFF POSITION, REMOVED AND REPLACED. (K)Jun 21, 2006 · N73DP · Bell 206B · Fuel Pressure IndicatorSDR CA070227009Control Lever · stiff(CAN) LEVER CONTROL LEVER HARD TO MOVE ON A FUNCTIONAL CHECK. (TC NR 20070227009)Jun 16, 2006 · Bell 206B · Turbine GovernorSDR YTRR110066Governor · fluctuatesENGINE RPM DROOPS WITH POWER APPLICATION. REPLACED GOVERNOR.Jun 13, 2006 · N2187L · Bell 206B3 · Turbine GovernorSDR 109061306Check Valve · brokenWHILE IN FOR A SCHEDULED INSPECTION, OUR TWIN ENGINE HELICOPTER EXPERIENCED A LOW POWER ENGINE PLOT ON NR 1 ENGINE. AN INTERESTING SIDE NOTE WAS THAT WITH BOTH ENGINES RUNNING, NORMAL TEMPERATURES APPEARED ON BOTH ENGINES AND NO POWER DEGRADATION WAS NOTED ONJun 13, 2006 · N21RX · Agusta A109A · Air Distribution SystemSDR YTRR110065Fuel Control · malfunctionedENGINE SURGES DURING ACCELLERATION. REPLACED FUEL CONTROLJun 9, 2006 · N2187L · Bell 206B3 · Fuel Control/Turbine EnginesSDR KBM2006F00206Bushing · wornBLEED VALVE, VANE BUSHING WORN, HIGH OPERATIONAL TOT, REMOVED AND REPLACED (K)Jun 6, 2006 · N73DP · Bell 206B · Compressor Bleed ValveSDR CA060605005Skid · corroded(CAN) DURING A ROUTINE 300 HR INSP OF THE AC, IT WAS NOTED THAT A SMALL PIECE OF PAINT HAD FALLEN OFF OF THE LOWER AFT END OF THE TAIL SKID ASSY, AT THE LOWER WELD BEAD JOINT. UPON FURTHER INVESTIGATION, IT WAS NOTED THAT A SMALL HOLE (APPROX .1875) WAS PRESENJun 1, 2006 · Bell 206B · Wheel/Ski/FloatSDR KBM2006F00216Scroll · crackedENGINE COMPRESSOR SCROLL FITTING FOR HEATER DEMISTER IS CRACKED. BLEED AIR SYSTEM, REMOVED AND REPLACED. (K)Jun 1, 2006 · N73DP · Bell 206B · Turbine Engine Compressor SectionSDR CA060605006Web · cracked(CAN) DURING A ROUTINE 300 INSP ON THE AIRFRAME, A CRACK WAS NOTED ON UPPER AFT SECTION OF THE SEAT WEB ASSY. THIS AREA IS PRONE TO STRESS AND CRACKS WHEN THE SEAT PANEL (THAT IS ATTACHED TO IT) IS REMOVED, AND NO SUPPORT IS ADDED TO THE TOP OF THIS WEB ASSY. May 31, 2006 · Bell 206B · Fuselage Miscellaneous StructureSDR CA060605008Longeron · cracked(CAN) DURING A ROUTINE 300 HR INSP, A CRACK WAS FOUND ON THE LONGERON ABOVE THE LT REAR PASSENGER DOOR, AT THE FWD ATTACHMENT TO THE ROLLOVER BULKHEAD. THE CRACK ORIGINATED AT THE ATTACHING RIVETS. THE LONGERON WAS REPLACED WITH A NEW PIECE, AND THE AIRCRAFT WMay 31, 2006 · Bell 206B · Fuselage Main, Longeron/StringerSDR KBM2006F00215Coupling · unserviceableCOUPLING, UNIT INSERVICEABLE, REMOVED AND REPLACED. (K)May 31, 2006 · N73DP · Bell 206B · Hydraulic Pump (Electric/Engine), MainSDR CA060606009Control Cable · broken(CAN) CABLE BROKE APPROXIMATELY 9.5 FROM END. (TC NR 20060606009)May 29, 2006 · Bell 206B · Fuel Control/Reciprocating EnginesSDR HEEA109565Terminal · looseAFTER TAKEOFF THE NR 1 ENGINE OIL TEMPERATURE ROSE TO THE RED LINE, RETURNED TO GALVESTON AND LANDED WITHOUT INCIDENCE. MAINTENANCE CLEANED AND TIGHTENED TERMINAL END TO TEMP BULB.May 27, 2006 · N81982 · Bolkms BO105S · Engine Oil TemperatureSDR CA060530001Transmission · making metalDURING CRUISE, MAIN ROTOR TRANSMISSION METAL PARTICLES LIGHT ILLUMINATE IN COCKPIT. LAND IMMEDIATELY IN SMALL CLEARING NEAR A ROAD. IT WAS A SECOND EVENT TO OCCUR WITHIN LAST 10 MINS, BUT FIRST TIME, WARNING LIGHT HAD EXTINGUISHED WHEN PILOT ACTIVATED PULSE May 27, 2006 · Bolkms BO105S · Main Rotor GearboxSDR HEEA109563Engine · malfunctionedDURING 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.May 26, 2006 · N50293 · Bolkms BO105S · Engine (Turbine/Turboprop)SDR HEEA109564Exhaust Stack · missingIN CRUISE FLIGHT, AIRCRAFT YAWED TO LEFT AND VIBRATION WAS FELT IN TAIL ROTOR PEDALS. AIRCRAFT WAS LANDED AT DESTINATION, AND PILOT DISCOVERED EXHAUST STACK FROM NR 1 ENGINE MISSING, AND DAMAGE TO BOTH TAIL ROTOR BLADES. MAINTENANCE FOUND THE NR 1 ENGINE OUMay 25, 2006 · N800PH · Bolkms BO105S · Engine Collector/Tailpipe/NozzleSDR KBM2006F00214Pressure Switch · intermittentFUEL PRESSURE CAUTION LIGHT INTERMITTENT, REMOVED AND REPLACED. (K)May 19, 2006 · N73DP · Bell 206B · Fuel Pressure IndicatingSDR CA060509007Strut · cracked(CAN) WHILE DOING A 100 HOUR INSPECTION OF THE AIRCRAFT THE ENGINEER NOTICED SOME CRACKED PAINT ON THE BOTTOM SIDE OF THE STRUT EMINATING FROM THE LANDING GEAR BRACE BOLT HOLE. HE THEN REMOVED SOME OF THE PAINT AND REVEALED A CRACK 1.5 INCHES LONG GOING OUTWAMay 4, 2006 · Hughes 369D · Main Landing Gear Strut/Axle/TruckSDR KBM2006F00163Coupling · defectiveCOUPLING, UNIT HAS SHARP EDGES ON SPLINE, REMOVED AND REPLACED. (K)Apr 23, 2006 · N188TV · Bell 206B · Hydraulic Pump (Electric/Engine), MainSDR KBM2006F00150Indicator · stuckTACH INDICATOR, NO INDICATION, NEEDLE STUCK, REMOVED AND REPLACED. (K)Apr 19, 2006 · N188TV · Bell 206B · Engine RPM Indicating SystemSDR KBM2006F00151Indicator · malfunctionedDUAL TACH, GAUGE LIGHT WILL NOT ILLUMINATE, REMOVED AND REPLACED. (K)Apr 19, 2006 · N188TV · Bell 206B · Engine RPM Indicating SystemSDR KBM2006F00152Indicator · faultyFUEL QUANTITY INDICATOR, LIGHTS WILL NOT ILLUMINATE, REMOVED AND REPLACED. (K)Apr 19, 2006 · N188TV · Bell 206B · Fuel Quantity IndicatorSDR KBM2006F00149Regulator · inoperativeAC BATTERY LOW POWER, REMOVED AND REPLACED. REGULATOR MALFUNCTIONED, REMOVED AND REPLACED. (K)Apr 3, 2006 · N188TV · Bell 206B · DC RegulatorSDR KBM2006F00148Drive Shaft · overtempMDS TEMP INDICATES IN FWD COUPLING, SHOW OVERTEMP CONDITION. DISASSEMBLED, CLEAN AND INSPECTED FOR OVERTEMP. NO DEFECT FOUND THIS TIME. REASSEMBLED WITH 8 INNER GREAT BOLT (PN NGS 660110, PO 2314)(4 NGS M8324811-235),( 2 EA 206-040-272-001)(4 EA MS210043-4)Mar 26, 2006 · N188TV · Bell 206B · Engine/Transmission CouplingSDR CA060320004Data Plate · loose(CAN) GLUE ON DATA TAG DETERIORATED DUE TO CONTACT WITH FUEL AND WAS LOCATED AT BOTTOM OF FUEL TANK (TC NR 20060320004)Mar 20, 2006 · Hughes 369D · Placards and MarkingsSDR ALG2006F00029Vhf Comm · inoperativeDURING FLIGHT, VHF RADIO DISPLAY WENT BLACK AND WOULD NOT RECEIVE OR TRANSMIT. AC LANDED, MAINTENANCE REMOVED AND REPLACED VHF RADIO, FUNCTION CHECKED GOOD AND RETURNED TO SERVICE. (K)Mar 15, 2006 · N117AL · Bell 206B · VHF Communications SystemSDR CA060316007Manifold · malfunctionedDURING PILOT TRAINING AIRCRAFT COMPLETED A HYDRAULICS OFF LANDING. HYDRAULIC SWITCH WAS THEN TURNED BACK ON AND THE FORE AND AFT MOVEMENTS CAME BACK HOWEVER THE LATERAL MOVEMENTS DID NOT COME BACK TO NORMAL HYDRAULIC ON. AIRCRAFT WAS THEN SHUT DOWN AND HYDRAMar 14, 2006 · Bell 206B · Hydraulic System, MainSDR NYS2006F00000Freewheel Unit · misinstalledDURING DAILY INSPECTION OF AC NOTED FREEWHEEL ASSY NOT FUNCTIONING PROPERLY. IN PUT DRIVE SHAFT FROM NR 1 ENGINE WOULD NOT FREEWHEEL IN COUNTER CLOCKWISE DIRECTION. REMOVED FREEWHEEL ASSY AND INSPECTED CLUTCH. FOUND SPRAG TURNED SIDEWAYS. METAL CLIP WHICH Mar 9, 2006 · N105NG · Bolkms BO105S · Engine/Transmission CouplingSDR CA060313003Blades · inoperative(CAN) AFTER FLIGHT, PILOT REPORTED THAT THE T/R PEDALS WERE STIFF. PEDAL TENSION WAS CHECKED WITH THE AIRCRAFT RUNNING AND IN FLIGHT AND MEASURED AT 30 LBS TENSION. THE T/R BLADES WERE REPLACED BY SERVICEABLE UNITS AND PROBLEM DISAPPEARED, TENSION ON PEDALS RMar 9, 2006 · Bolkms BO105S · Tail Rotor BladesSDR KBM2006F00111Window · crackedCO PILOT WINDOW CRACKED, REMOVED AND REPLACED. (K)Mar 8, 2006 · N188TV · Bell 206B · Flight Compartment WindowsSDR KBM2006F00112Window · crackedWINDOW, RT CHIN BUBBLE WINDOW IS CRACKED. REMOVED AND REPLACED. (K)Mar 8, 2006 · N188TV · Bell 206B · Flight Compartment WindowsSDR CA060322009Belt · failed(CAN) DURING A 100 HOUR INSPECTION THE BLOWER BELT WAS NOTED AS HAVING SEVERAL TEETH MISSING. BELT IS IDENTIFED WITH THE PN IN WHITE MARKER. BELT TENSION WAS VERIFIED AFTER INSTALLATION AND NO DEFECTS WERE NOTED DURING THE NEXT 3-100 HOUR INSPECTIONS. NO VIBRAMar 8, 2006 · Hughes 369D · Rotorcraft Cooling Fan SystemSDR 2006FA0000491Coupling · failedHYDRAULIC PUMP TACH DRIVE COUPLING BRAZED WELDING FAILED CAUSING COUPLING TO BECOME LOOSE. MFG SHOULD CHECK THE STRENGTH OF BRAZE AFTER WELDING. WHEN THIS COUPLING FAILS, LOST OF ROTOR TACH OCCURS. (K)Mar 2, 2006 · N59479 · Bell 206B · Hydraulic Pump (Electric/Engine), MainSDR KBM2006F00107Tach Generator · failedN2 READING WENT TO -0- IN A SHORT FINAL, REMOVED AND REPLACED TACH GENERATOR. (K)Mar 1, 2006 · N73DP · Bell 206B · Engine RPM Indicating SystemSDR KBM2006F00102Transponder · malfunctionedTRANSPONDER, UNIT INOPERATIVE. DOCS NOT INDICATE MODE C. REMOVED AND REPLACED. (K)Feb 28, 2006 · N188TV · Bell 206B · ATC Transponder SystemSDR 2006FA0000231Fitting · fracturedAC LANDED FOR SHUTDOWN AFTER OPERATING FOR APPROX 3 FLIGHT HOURS, AC WAS SHAKING DURING SHUTDOWN. DURING POST FLIGHT INSP IT WAS FOUND THAT UPPER LT MOUNT HARD POINT PN 2050318211P ON TAILBOOM (PN 20503280071), WAS FRACTURED, HAD TORN THRU FWD TAILBOOM BLKHD Feb 27, 2006 · N623PB · Bell UH1H · Rotorcraft Tail BoomSDR KBM2006F00085Bearing · wornTACH GENERATOR, BAD BEARINGS, REMOVED AND REPLACED. (K)Feb 7, 2006 · N73DP · Bell 206B · Engine RPM Indicating SystemSDR CA060208006Scroll · cracked(CAN) ON INSPECTION THE ENGINEER WAS TAKING APART THE ANTI-ICE BODY 6856984 FOR INSPECTION AND FOUND A CRACK AROUND THE BOSS. (TC NR 20060208006)Feb 7, 2006 · Hughes 369D · Turbine Engine Compressor SectionSDR CA060216002Caliper · binding(CAN) PISTON DOES NOT RETRACT INTO CALIPER HOUSING AFTER BRAKING CAUSING ROTOR BRAKE PAD TO REMAIN IN CONTACT WITH BRAKE DISC. (TC NR 20060216002)Jan 24, 2006 · Bolkms BO105C · Main Rotor BrakeSDR KBM2006F00045Unknown · unknownENGINE OIL PRESSURE AND TORQUE GAUGE FLUCTUATED AND DROPPED TO ZERO, REMOVED AND REPLACED. (K)Jan 23, 2006 · N188TV · Bell 206B · Standard Practices/StructuresSDR ALG2006F00012Tachometer · inoperativeIN FLIGHT NR INDICATOR DROPPED TO 20 PERCENT. REMOVED ROTOR TACHOMETER AND REPLACED WITH SERVICEABLE UNIT. WORK ACCOMPLISHED IAW MM. (K)Jan 20, 2006 · N158H · Bell 206B · Rotor Drive Indicating SystemSDR KBM2006F00046Valve · leakingVALVE ASSY, UNIT LEAKING, REMOVED AND REPLACED. (K)Jan 20, 2006 · N188TV · Bell 206B · Aircraft Fuel Filter/StrainerSDR KBM2006F00047Pump · low pressureBOOST PUMP LOW PRESSURE, REMOVED AND REPLACED. (K)Jan 20, 2006 · N188TV · Bell 206B · Fuel Boost PumpSDR KBM2006F00049Radio · malfunctionedVHF RADIO, WHEN MIC IS KEYED THE LIGHTS DIM, REMOVED AND REPLACED. (K)Jan 14, 2006 · N188TV · Bell 206B · VHF Communications SystemSDR CA060112001Combustion Case · crackedCREW REPORTED ABNORMALLY HIGH TOT ON NR 1 ENGINE. INVESTIGATION REVEALED A CRACK IN THE RT ARMPIT AREA OF THE OUTER COMBUSTION CASE. THE OUTER COMBUSTION CASE WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE.Jan 7, 2006 · Bolkms BO105S · Turbine Engine Combustion SectionSDR KBM2006F00048Indicator · inoperativeBOWL INDICATOR ASSY, UNITS INDICATOR POPS AT RANDOM. REMOVED AND REPLACED. (K)Jan 1, 2006 · N188TV · Bell 206B · Engine Oil Indicating SystemSDR KBM2006F00007Isolation Mount · inoperativeAIRCRAFT HAS VERTICAL VIBE DURING OUTOFF GROUND HOVER, ISOLATION MOUNT REMOVED AND REPLACED. (K)Dec 31, 2005 · N188TV · Bell 206B · Main Rotor GearboxSDR KBM2006F00008Seat Belt · brokenSEAT BELT BROKEN, REMOVED AND REPLACED. (K)Dec 31, 2005 · N188TV · Bell 206B · Emergency Equipment
Back to Allison 250-C20B