MBB BK 117 A-3

Service difficulty reports · 719

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 aircraft_model_key = 'BK117A3'
  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 99ZZZX774Tail Pipe · warpedTAIL PIPE HAS EXCESSIVE WARPAGE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Nov 9, 1998 · N163BK · Bolkms BK117A3 · Engine Collector/Tailpipe/NozzleSDR HEEA0016753Static Inverter · inoperativeSTATIC INVERTER INOPERATIVE, NO POWER.Nov 6, 1998 · N401PH · Bolkms BK117A3 · AC InverterSDR HEEA0016735Audio Control · failedNO SIDETONE WHEN TRANSMITTING ON VHF OR FM.Nov 6, 1998 · N401PH · Bolkms BK117A3 · Interphone/Passenger Announcement (PA) SystemSDR HEEA0016724Encoder · malfunctionedENCODER SKIPPING ELEVATORS IN REPORTING MODE.Nov 6, 1998 · N401PH · Bolkms BK117A3 · Altimeter, Barometric/EncoderSDR HEEA0016701Transceiver · weakTRANSCEIVER TRANSMITS VERY WEAK OR NOT AT ALL.Nov 6, 1998 · N401PH · Bolkms BK117A3 · VHF Communications SystemSDR HEEA0016696Starter · failedSTARTER WOULD NOT MOTOR ENGINE.Nov 6, 1998 · N401PH · Bolkms BK117A3 · Starter-GeneratorSDR HEEA0016647Transponder · failedTRANSPONDER DISPLAY COMES UP 7777 WHEN UNIT IS TURNED ON.Nov 5, 1998 · N401PH · Bolkms BK117A3 · ATC Transponder SystemSDR 99ZZZX892Bearing · wornBEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Nov 5, 1998 · N424MB · Bolkms BK117A3 · Tail Rotor HeadSDR 99ZZZX1694Pt Rotor · damagedFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TC: 5,451.2.Oct 26, 1998 · N428MB · Bolkms BK117A3 · Turbine SectionSDR 99ZZZX1689Pt Rotor · damagedFAILED SB LT101-72-10-0153. EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TC: 5,838.0.Oct 24, 1998 · N202HN · Bolkms BK117A3 · Turbine SectionSDR 99ZZZX1253Indicator · inoperativeNR 2 N2 NEEDLE INOPERATIVE. REMOVED AND REPLACED.Oct 23, 1998 · N117CH · Bolkms BK117A3 · Engine BMEP/Torque IndicatingSDR 99ZZZX1808Spring · wornSPRING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 21, 1998 · N428MB · Bolkms BK117A3 · Turbine SectionSDR 99ZZZX1807Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 21, 1998 · N428MB · Bolkms BK117A3 · Turbine Engine Compressor SectionSDR 99ZZZX1806Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 21, 1998 · N428MB · Bolkms BK117A3 · Turbine Engine Compressor SectionSDR 99ZZZX1805Seal · leakingSEAL LEAKING BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 21, 1998 · N428MB · Bolkms BK117A3 · Turbine Engine Compressor SectionSDR 99ZZZX1696Seal · wornSEAL WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Oct 21, 1998 · N428MB · Bolkms BK117A3 · Turbine Engine Combustion SectionSDR 99ZZZX3357Rod End · wornBEARING WORN ON ROD END. REMOVED AND REPLACED.Oct 7, 1998 · N527MB · Bolkms BK117A3 · Main Rotor HeadSDR 99ZZZX3356Rod End · wornBEARING WORN. REMOVED AND REPLACED.Oct 7, 1998 · N527MB · Bolkms BK117A3 · Main Rotor HeadSDR 99ZZZX911Indicator · failedNR 2 NEEDLE ON TACHOMETER INDICATOR STAYS AT ZERO, NR 1 NEEDLE RUNS 15 PERCENT LOW, AND ROTOR NEEDLE RUNS 4-5 PERCENT HIGH. REMOVED AND REPLACED.Sep 28, 1998 · N527MB · Bolkms BK117A3 · Engine RPM Indicating SystemSDR 99ZZZX840Switch · inoperativeTHERMO SWITCH UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Sep 24, 1998 · N163BK · Bolkms BK117A3 · Rotor Drive Indicating SystemSDR 99ZZZX771Sensor · inoperativeSENSOR UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Sep 24, 1998 · N163BK · Bolkms BK117A3 · Engine Oil PressureSDR 99ZZZX890Bearing · wornBEARING WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Sep 18, 1998 · N158BK · Bolkms BK117A3 · Tail Rotor HeadSDR 99ZZZX891Bushing · wornTEFLON LINERS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Sep 12, 1998 · N951AM · Bolkms BK117A3 · Tail Rotor BladesSDR 99ZZZX855Bushing · wornTEFLON LINERS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Sep 12, 1998 · N951AM · Bolkms BK117A3 · Main Rotor HeadSDR 99ZZZX227Nut · looseDURING TAKEOFF, AIRCRAFT'S NR 1 ENGINE EXPERIENCED AN UNCOMMANDED DECELERATION TO IDLE. THE AIRCRAFT LANDED WITHOUT ANY FURTHER INCIDENT. THE ENGINE WAS REMOVED AND SENT TO CORPORATE JETS, INC. DURING TEAR-DOWN INSPECTION, TECH FOUND THE NUT ON THE P.T. RETSep 5, 1998 · N117LG · Bolkms BK117A3 · Turbine SectionSDR 99ZZZX905Starter · damagedDRIVE DAMPER BROKEN. REMOVED AND REPLACED.Aug 28, 1998 · N527MB · Bolkms BK117A3 · Starter-GeneratorSDR 99ZZZX851Ball Pin · wornBALL PIN WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Aug 26, 1998 · N951AM · Bolkms BK117A3 · Engine Cowling SystemSDR 99ZZZX907Indicator · malfunctionedNG INDICATOR INTERMITTENT. WORKS FOR SOME TIME, THEN SPINS OUT OF CONTROL. REMOVED AND REPLACED.Aug 21, 1998 · N117MH · Bolkms BK117A3 · Engine RPM Indicating SystemSDR HEEA0015734Control Unit · failedCONTROL UNIT SHORTED AND TRIPPED CIRCUIT BREAKER.Aug 20, 1998 · N401PH · Bolkms BK117A3 · Flight Compartment LightingSDR HEEA0015658Radar · malfunctionedINDICATOR SAYS ERROR WHEN GOING THROUGH TEST MODE.Aug 17, 1998 · N911NC · Bolkms BK117A3 · Weather Radar SystemSDR 98ZZZX4110Rotor Assy · damagedROTOR ASSY FAILED SB LT101-72-10-0153 (FAILED Q-ROTOR INSPECTION). EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TC: 4,011.2.Aug 3, 1998 · N951AM · Bolkms BK117A3 · Turbine Engine Combustion SectionSDR 99ZZZX1690Seal · wornSEAL WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 31, 1998 · N202HN · Bolkms BK117A3 · Turbine Engine Combustion SectionSDR HEEA0015371Control Unit · malfunctionedCONROL UNIT HAS INTERMITTENT LIGHT SURGES.Jul 29, 1998 · N401PH · Bolkms BK117A3 · Flight Compartment LightingSDR 98ZZZX3111Bellows · wrong partBELLOWS REJECTED, NEW OUT-OF-BOX. INCORRECTLY PACKAGED. PARTS DO NOT MATCH PART NUMBER ON LABEL. REPLACED WITH 3 EACH NEW UNITS, CORRECTED PROBLEM.Jul 20, 1998 · N951AM · Bolkms BK117A3 · Flight Control SystemSDR 98ZZZX3110Switch · stuckTOGGLE SWITCH STICKS IN CLOSED POSITION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 16, 1998 · N951AM · Bolkms BK117A3 · DC Power Distribution SystemSDR 98ZZZX3374Pickup · failedPICKUP UNIT INOPERATIVE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jul 4, 1998 · N158BK · Bolkms BK117A3 · Engine RPM Indicating SystemSDR HEEA0014847Switch · looseADF/VOR SWITCH IS LOOSE AND NO ADF INDICATION.Jun 22, 1998 · N911NC · Bolkms BK117A3 · Visual Omnirange (VOR) SystemSDR 99ZZZX1799Shroud · tip rubEXCESSIVE GP BLADE TIP RUB. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Jun 13, 1998 · N528SF · Bolkms BK117A3 · Turbine SectionSDR 98ZZZX4112Rotor Assy · damagedFAILED SB LT101-72-10-0153 (FAILED Q-ROTOR INSPECTION). EXCESSIVE IBPT BLADE SHIFT. REPLACED WITH USED UNIT, CORRECTED PROBLEM. PART TC: 9,744.4.Jun 13, 1998 · N528SF · Bolkms BK117A3 · Turbine Engine Combustion SectionSDR HEEA0014722Control Unit · malfunctionedCOPILOT INSTRUMENT LIGHT PROBLEM.Jun 10, 1998 · N401PH · Bolkms BK117A3 · Flight Compartment LightingSDR HEEA0014640Filter · failedENGINE OIL FILTER'S BYPASS BUTTON POPS AFTER ENGINE OPERATION.Jun 8, 1998 · N401PH · Bolkms BK117A3 · Turbine Engine Oil SystemSDR HEEA0014511Light · inoperativeINSTRUMENT LIGHT IS INOPERATIVE.Jun 4, 1998 · N911NC · Bolkms BK117A3 · Fuel Quantity IndicatorSDR 98ZZZX2474Tube · failedDURING ENGINE COOL DOWN PERIOD, THE ENGINE SHUT DOWN ON ITS OWN. THE MAIN FUEL LINE (AFT REAR) TO THE MANIFOLD HAD CRACKED JUST BEHIND THE FLARE AT THE MANIFOLD CONNECTION, HALF OF THE CIRCUMFERENCE.Jun 3, 1998 · N967LS · Bolkms BK117A3 · Engine Fuel DistributionSDR 98ZZZX3379Bearing · pittedBEARING HAS EXCESSIVE PITTING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 19, 1998 · N528SF · Bolkms BK117A3 · Turbine SectionSDR 98ZZZX3378Pickup · failedPICKUP HAS EXCESSIVE PITTING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 19, 1998 · N528SF · Bolkms BK117A3 · Engine RPM Indicating SystemSDR 98ZZZX3377Pickup · failedPICKUP HAS EXCESSIVE PITTING. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 19, 1998 · N528SF · Bolkms BK117A3 · Engine RPM Indicating SystemSDR 98ZZZX3385Seal · wornSEAL WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.May 16, 1998 · N117MV · Bolkms BK117A3 · Turbine SectionSDR HEEA0014196End Plate · crackedHORIZ STAB V FIN VERT END PLATE HAS THREE INCH CRACK AFT OF MOUNTING FLANGE.May 12, 1998 · N401PH · Bolkms BK117A3 · Horizontal Stabilizer StructureSDR 98ZZZX1884Control · failedINTERNAL FAILURE OF INSTRUMENT LIGHTS' CONTROL UNIT. CAUSE UNKNOWN.Apr 27, 1998 · N118LL · Bolkms BK117A3 · Flight Compartment LightingSDR 98ZZZX1883Sensor · failedINDICATION FAILURE. TROUBLESHOOT TO NG PICKUP. INSTALLED NEW PICKUP, OPS CHECK GOOD.Apr 24, 1998 · N911MZ · Bolkms BK117A3 · Engine RPM Indicating System
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