Kawasaki BK117C-1

Service difficulty reports · 387

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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 = 'BK117C1'
  ORDER BY difficulty_date DESC"

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SDR 2025F00098Stiffener · crackedINSTRUMENT PANEL STIFFENER CRACKEDApr 22, 2025 · N117NC · Bolkms BK117C1 · Aircraft StructuresSDR 2025F00097Deck Plate · crackedTRANSMISSION DECK BEAM CRACKED.Apr 22, 2025 · N117N · Bolkms BK117C1 · Fuselage Main, StructureSDR 3GMA2024120304Unknown · odorCREW NOTED STRONG FUEL SMELL IN FLIGHT. RETURNED TO BASE.Nov 29, 2024 · N486LF · Bolkms BK117C1 · Air Distribution SystemSDR HDNA2024040001Blower · bindingPILOT AND MEDICAL STAFF REPORTED A LOUD SOUND AND SUBSEQUENTLY SMELLED SMOKE. PILOT NOTED THAT THE AIRCONDITIONING SYSTEM WAS NO LONGER BLOWING AND THE C/B WAS TRIPPED. HE OPTED TO RETURN TO BASE WHERE MAINTENANCE NOTED THE AFT AIRCONDITIONER BLOWER HAD FAILEDApr 14, 2024 · N198LS · Bolkms BK117C1 · Air Distribution SystemSDR 2019FA0000131Vent Line · looseFUEL SMELL NOTICEABLE IN CABIN, DURING FLIGHT. INSPECTED, FOUND EXPANSION TANK VENT LINE LEAKING AT FITTING. INSPECTED AND REPAIRED LINE, AS REQUIRED. NO OTHER DEFECTS NOTED. ACFT RETURNED TO SERVICE.Apr 21, 2019 · N452MH · Bolkms BK117C1 · Aircraft Fuel Distribution SystemSDR GVNA201904230179Pressure Switch · failedNR 1 ENG FUEL PRESSURE LIGHT ILLUMINATED DURING FLIGHT/APPROACH. REPLACED LOW FUEL PRESSURE SWITCH WITH SERVICEABLE PART. PERFORMED GROUND RUN/LK CHK. CHK'D GOOD.Apr 17, 2019 · N453MH · Bolkms BK117C1 · Fuel Pressure IndicatorSDR GVNA201904170170Packing · failedAFTER PATIENT LOADING, DURING FINAL WALK AROUND, MED CREW NOTICED FUEL LEAKING FROM #2 ENGINE. MECHANIC, UPON FURTHER INSPECTION, FOUND FUEL SHUTOFF VALVE LEAKING AT FILTER BOWL. REPLACED PACKING. LEAK CHK GOOD. NO OTHER DEFECTS NOTED.Oct 23, 2018 · N454MH · Bolkms BK117C1 · Fuel Controlling SystemSDR 2016F00179Ovrspeed Limiter · activatedNR 2 ENGINE SHUTDOWN IN FLIGHT DURING TRAINING DUE TO A TRIPPING OF THE NR 2 OVER SPEED PROTECTION BOX. PILOTS VERIFIED VISUALLY THAT THERE WAS NO OVERSPEED THAT OCCURRED AND PROCEEDED WITH A RUN ON LANDING. AFTER TROUBLESHOOTING WE FOUND THE OVERSPEED PROTESep 2, 2016 · N911XE · Bolkms BK117C1 · Engine RPM Indicating SystemSDR HDNA20160210001Angle · crackedDURING SCHEDULED INSPECTIONS CRACKS WERE FOUND IN THE TAIL CONE AT STATION 6616, LOWER AREA. REPLACED FRAME ANGLE 117-22122-001 02-100 & INSTALLED REPAIR LIT 117-SB20-101-3 1 IAW SB MBB BK117-20-101 SECTION 2 B 1 2.Feb 10, 2016 · N198LL · Bolkms BK117C1 · Rotorcraft Tail BoomSDR HDNA2015F00104Structure · corrodedCRACK AND CORROSION FOUND BETWEEN L1 AND L2 FRAMES LOCATED IN THE FUSELAGE CEILING.Aug 31, 2015 · N911XE · Bolkms BK117C1 · Fuselage Main, StructureSDR QMLA2014121314141Warning System · activatedEVENT OCCURRED WHILE INFLIGHT AT 8000'. ON BOARD THE ACFT WERE 3 MX PERSONNEL. THE NR 2 ENG CHIP ANNUNCIATOR LIGHT ILLUMINATED. ACTIVATED THE CHIP PULSE SYS ONCE & THE WARNING LIGHT DID NOT EXTINGUISH. SHUTDOWN NR 2 ENG & DIVERTED. DECLARED AN EMER & PROCDec 13, 2014 · N159LM · Bolkms BK117C1 · Engine Oil Indicating SystemSDR QMLA2013062413089Shaft · wornDURING THE DAILY AIRWORTHINESS CHECK, A MISSING RIVET WAS FOUND IN THE AREA OF THE TAIL GEARBOX. AFTER A CLOSER INSPECTION, NUMEROUS RIVETS WERE FOUND TO HAVE THE APPEARANCE OF STARTING TO BE "WORKING". THE TAIL ROTOR HEAD/BLADE ASSY WAS REMOVED ALONG WITH TJun 24, 2013 · N911TG · Bolkms BK117C1 · Tail Rotor Drive ShaftSDR QMLA2013021313026Gearbox · making metalTAIL ROTOR GEARBOX CHIP LIGHT OCCURED DURING ENGINE SHUTDOWN. A VISUAL INSPECTION FOUND A CHIP OUT OF LIMITS. REMOVED FAILED GEARBOX. GEARBOX AND SHAFT ASSY, ASSEMBLED AND INSTALLED ON ACFT, PERFORMED VIBRATION & BALANCE CHECK AND RETURNED ACFT TO SERVICE.Feb 13, 2013 · N911TG · Bolkms BK117C1 · Tail Rotor GearboxSDR QMLA2013012413010O-Ring · pinchedPILOT REPORTED FUEL SEEPING FROM ENGINE NR 2 COWLING AND MIGRATING BACK TO RT CLAMSHELL DOOR: UPON TROUBLESHOOTING, FOUND DAMAGED O-RING AT ENGINE 2 DRAIN VALVE. THE MECHANIC R & R THE O-RING AND PERFORMED LEAK CHECK WITH NO DISCREPANCIES NOTED. THE ACFT WAJan 24, 2013 · N811LV · Bolkms BK117C1 · Engine Fuel and ControlSDR QMLA2012100912170Attach Fitting · cracked90 DEG, TAIL ROTOR GEAR BOX ATTACHMENT FITTING, CRACKED ABOUT 1 CM AT OTBD TOP MOUNTING BOLT.Oct 9, 2012 · N159LM · Bolkms BK117C1 · Rotorcraft Tail BoomSDR QMLA2012041312060Casting · crackedFOUND OIL LEAKING AROUND VERTICAL FIN AREA. INSPECTED AREA AND FOUND TAIL ROTOR GEARBOX LEAKING AND NOTICED THAT TAIL ROTOR CASTING WAS ALSO CRACKED. UPON DISASSEMBLY FOUND THAT TAIL ROTOR HEAD BOLT HAS BEEN GALLED AND TEFLON FROM TORSION TENSION STRAP HAS BEApr 13, 2012 · N117NC · Bolkms BK117C1 · Tail Rotor GearboxSDR QMLA2012030312023Unknown · odorTHE PILOT DETECTED THE ODOR OF FUEL IN THE CABIN AND COCKPIT, APPROXIMATELY FOUR MINUTES INTO FLIGHT. RETURNED TO BASE. MX INSPECTED ACFT IAW THE MM 60. NO DEFECTS WERE NOTED. A MX CHECK FLIGHT WAS PERFORMED WITH NO ODOR DUPLICATED. THE ACFT WAS RETURNED Mar 3, 2012 · N811LV · Bolkms BK117C1 · Air Distribution SystemSDR QMLA2011052411060Fuel Control · defectiveABOUT 4 MINUTES INTO FLIGHT STRAIGHT AND LEVEL NR 1 ENGINE ROLLED BACK TO 74 PERCENT N1 UNCOMMANDED. NR1 ENGINE LOW LIGHT ILLUMINATED. PILOT CONFIRMED PCL WAS IN FULL FORWARD FLY POSITION AND ATTEMPTED TO BEEP NR1 ENGINE UP USING ENGINE TRIM SWITCH, ENGINE REMay 24, 2011 · N117UP · Bolkms BK117C1 · Fuel Control/Turbine EnginesSDR QMLA2011033011042Bearing · making metalTHE NR 2 ENGINE CHIP LIGHT ILLUMINATED ENROUTE TO A SCENE CALL. THE PILOT IMMEDIATELY ABORTED THE FLIGHT AND RETURNED TO BASE LESS THAN 3 MILES AWAY. UPON ARRIVING AT THE BASE, THE MECHANIC INSPECTED THE CHIP PLUGS AND FOUND METAL ON THE M05 MAGNETIC PLUG ANMar 30, 2011 · N117UP · Bolkms BK117C1 · Engine (Turbine/Turboprop)SDR 7KFA775LWire · chafedELECTRICAL FIRE IN FLIGHT IN THE VICINITY OF SUCTION CONTROLS AND LIQUID OXYGEN GAUGE, FLAMES, SMOKE AND FUMES IN ACFT. WHEN DISCOVERED: IN FLIGHT, CAUSE OF INCIDENT COME FROM THE 120 VOLT AC OUTLET WIRE NR XMO10B12, PN M22759/16/12 WHICH IS LOCATED ON THE LTDec 4, 2010 · N271NE · Bolkms BK117C1 · Electrical Power System WiringSDR 2009F00114Swashplate · dislodgedON 08/21/2009, INSTALLED A MAIN TRANSMISSION/SWASH PLATE ASSY NEWLY REPAIRED BY THE MFG. GROUND RUNS, TRACK AND BALANCE, AND FLIGHT TESTS WERE COMPLETED ON TUESDAY, 08/25/2009; NOTHING OUT OF THE ORDINARY WAS NOTICED. THE PILOT REPORTED UPON REACHING DANVILLEAug 25, 2009 · N486LF · Bolkms BK117C1 · Main Rotor Mast/SwashplateSDR 7KFA486LFFastener · missing08/21/2009 ERA MED LLC INSTALLED A MAIN TRANSMISSION/SWASH PLATE ASSEMBLY NEWLY REPAIRED BY THE MANUFACTURER (AEC). GROUND RUNS, TRACK AND BALANCE, AND FLIGHT TESTS WERE COMPLETED ON TUESDAY, 08/25/2009; NOTHING OUT OF THE ORDINARY WAS NOTICED. THE PILOT REPAug 25, 2009 · N486LF · Bolkms BK117C1 · Main Rotor Mast/SwashplateSDR 2009FA0000787Washer · missingON 08/21/2009 INSTALLED A MAIN TRANSMISSION/SWASH PLATE ASSY NEWLY REPAIRED BY THE MANUFACTURE. GROUND RUNS, TRACK, BALANCE, & FLIGHT TESTS COMPLETED, NOTHING OUT OF THE ORDINARY NOTICED. PILOT REPORTED THAT ACFT HAD STARTED DISPLAYING VIBRATIONS DURING FLAug 25, 2009 · Bolkms BK117C1 · Main Rotor Mast/SwashplateSDR QMLA2009072509024Cap · misinstalledPILOT DID NOT PUT FUEL CAP BACK ON PROPERLY AFTER REFUELING, AFTER TAKEOFF A FUEL ODOR WAS NOTICED PILOT MADE AN UNSCHEDULED LANDING, NOTICED FUEL ON THE CABIN DOOR. INSTALLED FUEL CAP PROPERLY WITH OUT FURTHER INCIDENT.Jul 25, 2009 · N811LV · Bolkms BK117C1 · Fuel StorageSDR RMXA061020097505Seal · failedDURING CRUISE FLIGHT, THE NR 2 ENGINE OIL PRESSURE CAUTION LIGHT ILLUMINATED ALONG WITH A DROP ON THE OIL PRESSURE INDICATOR GAUGE. THE ENGINE WAS SHUTDOWN IN FLIGHT AND A UNSCHEDULED RUNNING LANDING WAS PERFORMED WITHOUT INCIDENT. THE NR 2 ENGINE MODULE 5 INTJun 10, 2009 · N317MC · Bolkms BK117C1 · Turbine Engine Oil SystemSDR QMLA052309018Chip Detector · illuminatedIN CRUISE FLIGHT, TO PICK UP A PATIENT AT 2500MSL, ACFT EXPERIENCED A T/R CHIP LIGHT. THE ACFT COMPLETED THE EMERGENCY PROCEDURE FOR SAME, DIVERTED TO AN AIRPORT ABOUT 3 MILES AWAY, CALLING THE COMM CENTER AND ADVISED OF THE SITUATION. NORMAL SHUTDOWN COMPLETEMay 23, 2009 · N117NC · Bolkms BK117C1 · Tail Rotor SystemSDR 2009FA0000069Gasket · leakingTRANSPORTING A PATIENT AND DIVERTED TO AIRPORT BECAUSE CREW DETECTED A BURNING EXHAUST ODOR IN THE CABIN. PILOT DID NOT SMELL IT, BUT DIVERTED FOR SAFETY. MECHANIC WAS ABLE TO DE-COWL NR 1 ENG. FOUND A CONSIDERABLE AMOUNT OF RESIDUAL OIL/FUEL. CLEANED AREAFeb 7, 2009 · N273NE · Bolkms BK117C1 · Engine (Reciprocating)SDR BAQA200700033Blade · crackedWHILE PERFORMING A PREFLIGHT A CRACK WAS FOUND IN THE TAIL ROTOR BLADE NEAR THE DATA TAG.Oct 2, 2007 · N117NC · Bolkms BK117C1 · Tail Rotor BladesSDR BAQA200700032Fitting · crackedTAILROTOR GEAR BOX MOUNT FITTING AT TOP OF VERTICAL FIN CRACKED AND TAIL ROTOR GEAR BOX MOUNTING STUD ROSSET FITTING LOOSE.Sep 24, 2007 · N911TG · Bolkms BK117C1 · Rotorcraft Tail BoomSDR RMXA2007Skin Panel · crackedDURING A SCHEDULED INSPECTION, SEVERAL CRACKS WERE FOUND ON THE TAILBOOM TOP SKIN PT NR1120-32052.11 AROUND THE ATTACHING RIVET HOLES ON THE AFT LT EDGE.Sep 20, 2007 · N317MC · Bolkms BK117C1 · Rotorcraft Tail BoomSDR BAQA2007005Skin · crackedA CRACK WAS FOUND AT THE TOP OF THE TAILBOOM VERTICAL FIN WHILE TROUBLESHOOTING A TAIL ROTOR VIBRATION ISSUE. THE CRACK WAS FOUND ON THE LT SIDE OF THE ACCESS SIDE OF THE OPENING FOR ACCESS TO THE TAILROTOR GEARBOX MOUNTING HARDWARE.Jan 30, 2007 · N911TG · Bolkms BK117C1 · Rotorcraft Tail BoomSDR EHA2004F00002Warning Light · illuminatedNR 1 AND NR 2 FUEL FILTER LIGHT ILLUMINATED DURING FLIGHT. THE NR 1 CAME ON FIRST, THEN THE NR 2 CAME ON A MINUTE LATER. PILOT LANDED AIRCRAFT, CALLED FOR MECHANIC. REMOVED FUEL FILTERS, INSPECTED FOR WATER, NONE FOUND. REMOVED AND REPLACED ENGINE AIRFRAMEJul 3, 2004 · N141LG · Bolkms BK117C1 · Fuel Indicating SystemSDR BAQA094843Indicator · failedNR 2 ENG N1 IND LED DIGITAL DISPLAY DIM/BRITE BULB BURNED OUT. REPLACED WITH SERVICABLE UNIT. 06/04/2004May 28, 2004 · N911TG · Bolkms BK117C1 · Engine RPM Indicating SystemSDR BAQA094478Indicator · burned outLED DISPLAY LIGHTING BURNED OUT. REPLACED WITH SERVICABLE UNIT.May 11, 2004 · N117KY · Bolkms BK117C1 · Engine RPM Indicating SystemSDR BAQA094415Control Unit · inoperativeSTRONG LAT. INPUTS WITH YAW CSAS IN ON POSITON OR STANDBY POSITION, GOES AWAY WHEN SYSTEM IS TURNED OFF. UNIT LASTED 83.6 HOURS SINCE LAST REPAIR. LAST REPAIR, CJ RO 9-090006-17 ; INVOICE NR S29024201.May 3, 2004 · N911TG · Bolkms BK117C1 · Autopilot ComputerSDR BAQA094310Indicator · inoperativeGAUGE BACKLIGHTING INOPERATIVE. REPLACED WITH SERVICABLE UNIT. 05/05/2004May 3, 2004 · N117NC · Bolkms BK117C1 · Engine RPM Indicating SystemSDR BAQA094402Indicator · inoperativeWHEN FLOWN WITH INDICATOR. WINGS LEVEL IN TRIM A/C MAKES SLOW RT TURN, INDICATOR IS DRIFTING. REPLACED WITH SERVICABLE UNIT. 05/05/2004Apr 30, 2004 · N911TG · Bolkms BK117C1 · Attitude Gyro and Indicating SystemSDR BAQA094704Bearing · wornBEARINGS WORN AND SLOPPY. REPLACED WITH SERVICABLE UNIT. 05/24/2004Apr 22, 2004 · N117KY · Bolkms BK117C1 · Tail Rotor Control SystemSDR BAQA094099Start Valve · inoperativeWARRANTY - CORE RETURN FOR WARRANTY PO 202317606, ENG S/N 18167, VALVE WAS REMOVED IN THE TROUBLESHOOTING PROCESS OF HAR STARTING NR 1 ENGINE. REPLACED WITH SERVICEABLE UNIT FROM MFG, 04/21/2004Apr 3, 2004 · N117KY · Bolkms BK117C1 · Engine Start Valves/ControlsSDR BAQA094174Blower · noisyBLOWER IS EXCESSIVELY NOISY OPERATION AND INTERMITTENT STARTING AND STOPPING. S/N 105 WAS TAKEN FROM ASSET STOCK AND INSTALLED ON A/C. YET TO RECEIVE THE REPLACEMENT FROM AEC AS OF 04/15/2004. REPLACED WITH SERVICEABLE UNIT FROM ASSET (S/N 105). 04/15/2004Apr 1, 2004 · N117KY · Bolkms BK117C1 · Air Distribution FanSDR EHA2004F00001Drain Valve · leakingPILOT REPORTED EXCESSIVE FUEL SMELL AFTER STARTING NR 1 ENGINE PILOT SHUT DOWN ENGINE DURING RESTART OBSERVED LARGE AMOUNT OF FUEL POURING OVER ENGINE FROM THE TOP SIDE OF ENGINE. UPON INVESTIGATION FOUND START DRAIN VALVE LEAKING. REPLACED START DRAIN VALVEMar 14, 2004 · N141LG · Bolkms BK117C1 · Engine DrainsSDR BAQA093950Lamp · shortedSTROBE LAMP ASSY HAS AN INTERNAL SHORT, WILL NOT FLASH. REPALCED WITH SERVICABLE UNIT 03/26/2004Mar 12, 2004 · N117KY · Bolkms BK117C1 · Exterior LightingSDR BAQA093829Control Unit · failedYAW CSAS MADE UNCOMMANDED YAW OSCILLATIONS IN NORMAL AND STANDBY MODE AT APPROX. TWO SECOND INTERVALS. UNIT WAS INSTALLED 02/16/2004 AT A/C TT 5145.8 AND WAS REMOVED 03/12/2004 AT A/C TT 5172.2 FOR A TOTAL OF 26.4 HOURS. LAST REPAIR REF RO 9-090006-18 MMIR CLMar 12, 2004 · N911TG · Bolkms BK117C1 · Autopilot SystemSDR BAQA092596Actuator · failedBENCH TEST FOR SERVICEABILITY. REPLACED WITH SERVICABLE UNIT.Mar 9, 2004 · N117UP · Bolkms BK117C1 · Stabilizer Position IndicatingSDR BAQA092597Actuator · inoperativeBENCH TEST FOR SERVICEABILITY. REPLACED WITH SERVICABLE UNIT. 03/09/2004Mar 9, 2004 · N117UP · Bolkms BK117C1 · Stabilizer Position IndicatingSDR BAQA093684Transponder · failedEXCHANGE. UNIT GIVING WRONG ALTITUDE, BAD WIRES IN UNIT. REPLACED WITH SERVICABLE UNIT. 03/15/2004Mar 9, 2004 · N117UP · Bolkms BK117C1 · ATC Transponder SystemSDR BAQA093635Blade · damagedWARRANTY REPAIR/EXCHANGE : SINCE JULY 2, 1996 BLADE HAS FLOWN ONLY 346.1 HOURS. BLADE HAS ZERO HOURS AFTER BEING REMOVED FOR SUSPECTED COWLING STRIKE ON JULY 9, 1998 (A/C 7109). BLADE REPAIRED THREE TIMES SINCE 1998 AND BLADE IS STILL UNABLE TO FLY. LAST REPMar 4, 2004 · N911TG · Bolkms BK117C1 · Engine/Transmission CouplingSDR BAQA092751Blade · out of trackRENTAL 117-151451V001 S/N 2622 RENTAL CHARGE 36.75 HR REPLACEMENT VALVE RETURN OF RENTAL BLADE AFTER .4 HOURS OF USE, WOULD NOT TRACK REPLACED WITH ANOTHER RENTAL BLADE (S/N 2419)Mar 3, 2004 · N911TG · Bolkms BK117C1 · Main Rotor BladesSDR BAQA092750Blade · out of trackRETURN OF RENTAL BLADE AFTER .4 HOURS OF USE, BLADE WOULD NOT TRACK. REPLACED WITH ANOTHER RENTAL BLADE (S/N 2413)Mar 3, 2004 · N911TG · Bolkms BK117C1 · Main Rotor BladesSDR BAQA093742Indicator · inoperativeDIGITS UNREADABLE AT NIGHT. REPLACED WITH SERVICABLE ASSET UNIT. 03/12/2004Feb 29, 2004 · N117KY · Bolkms BK117C1 · Engine RPM Indicating System
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