# Service difficulty reports: Kawasaki BK117C-1

A list on [Kawasaki BK117C-1](https://openairdocs.org/model/kawasaki-bk117c-1.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 8 · 387 reports

- [SDR 2025F00098](https://openairdocs.org/sdr/2025F00098.md): Stiffener · cracked · Apr 22, 2025 · N117NC · Bolkms BK117C1 · Aircraft Structures
  > INSTRUMENT PANEL STIFFENER CRACKED
- [SDR 2025F00097](https://openairdocs.org/sdr/2025F00097.md): Deck Plate · cracked · Apr 22, 2025 · N117N · Bolkms BK117C1 · Fuselage Main, Structure
  > TRANSMISSION DECK BEAM CRACKED.
- [SDR 3GMA2024120304](https://openairdocs.org/sdr/3GMA2024120304.md): Unknown · odor · Nov 29, 2024 · N486LF · Bolkms BK117C1 · Air Distribution System
  > CREW NOTED STRONG FUEL SMELL IN FLIGHT. RETURNED TO BASE.
- [SDR HDNA2024040001](https://openairdocs.org/sdr/HDNA2024040001.md): Blower · binding · Apr 14, 2024 · N198LS · Bolkms BK117C1 · Air Distribution System
  > PILOT 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 FAILED
- [SDR 2019FA0000131](https://openairdocs.org/sdr/2019FA0000131.md): Vent Line · loose · Apr 21, 2019 · N452MH · Bolkms BK117C1 · Aircraft Fuel Distribution System
  > FUEL 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.
- [SDR GVNA201904230179](https://openairdocs.org/sdr/GVNA201904230179.md): Pressure Switch · failed · Apr 17, 2019 · N453MH · Bolkms BK117C1 · Fuel Pressure Indicator
  > NR 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.
- [SDR GVNA201904170170](https://openairdocs.org/sdr/GVNA201904170170.md): Packing · failed · Oct 23, 2018 · N454MH · Bolkms BK117C1 · Fuel Controlling System
  > AFTER 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.
- [SDR 2016F00179](https://openairdocs.org/sdr/2016F00179.md): Ovrspeed Limiter · activated · Sep 2, 2016 · N911XE · Bolkms BK117C1 · Engine RPM Indicating System
  > NR 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 PROTE
- [SDR HDNA20160210001](https://openairdocs.org/sdr/HDNA20160210001.md): Angle · cracked · Feb 10, 2016 · N198LL · Bolkms BK117C1 · Rotorcraft Tail Boom
  > DURING 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.
- [SDR HDNA2015F00104](https://openairdocs.org/sdr/HDNA2015F00104.md): Structure · corroded · Aug 31, 2015 · N911XE · Bolkms BK117C1 · Fuselage Main, Structure
  > CRACK AND CORROSION FOUND BETWEEN L1 AND L2 FRAMES LOCATED IN THE FUSELAGE CEILING.
- [SDR QMLA2014121314141](https://openairdocs.org/sdr/QMLA2014121314141.md): Warning System · activated · Dec 13, 2014 · N159LM · Bolkms BK117C1 · Engine Oil Indicating System
  > EVENT 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 & PROC
- [SDR QMLA2013062413089](https://openairdocs.org/sdr/QMLA2013062413089.md): Shaft · worn · Jun 24, 2013 · N911TG · Bolkms BK117C1 · Tail Rotor Drive Shaft
  > DURING 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 T
- [SDR QMLA2013021313026](https://openairdocs.org/sdr/QMLA2013021313026.md): Gearbox · making metal · Feb 13, 2013 · N911TG · Bolkms BK117C1 · Tail Rotor Gearbox
  > TAIL 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.
- [SDR QMLA2013012413010](https://openairdocs.org/sdr/QMLA2013012413010.md): O-Ring · pinched · Jan 24, 2013 · N811LV · Bolkms BK117C1 · Engine Fuel and Control
  > PILOT 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 WA
- [SDR QMLA2012100912170](https://openairdocs.org/sdr/QMLA2012100912170.md): Attach Fitting · cracked · Oct 9, 2012 · N159LM · Bolkms BK117C1 · Rotorcraft Tail Boom
  > 90 DEG, TAIL ROTOR GEAR BOX ATTACHMENT FITTING, CRACKED ABOUT 1 CM AT OTBD TOP MOUNTING BOLT.
- [SDR QMLA2012041312060](https://openairdocs.org/sdr/QMLA2012041312060.md): Casting · cracked · Apr 13, 2012 · N117NC · Bolkms BK117C1 · Tail Rotor Gearbox
  > FOUND 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 BE
- [SDR QMLA2012030312023](https://openairdocs.org/sdr/QMLA2012030312023.md): Unknown · odor · Mar 3, 2012 · N811LV · Bolkms BK117C1 · Air Distribution System
  > THE 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
- [SDR QMLA2011052411060](https://openairdocs.org/sdr/QMLA2011052411060.md): Fuel Control · defective · May 24, 2011 · N117UP · Bolkms BK117C1 · Fuel Control/Turbine Engines
  > ABOUT 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 RE
- [SDR QMLA2011033011042](https://openairdocs.org/sdr/QMLA2011033011042.md): Bearing · making metal · Mar 30, 2011 · N117UP · Bolkms BK117C1 · Engine (Turbine/Turboprop)
  > THE 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 AN
- [SDR 7KFA775L](https://openairdocs.org/sdr/7KFA775L.md): Wire · chafed · Dec 4, 2010 · N271NE · Bolkms BK117C1 · Electrical Power System Wiring
  > ELECTRICAL 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 LT
- [SDR 2009F00114](https://openairdocs.org/sdr/2009F00114.md): Swashplate · dislodged · Aug 25, 2009 · N486LF · Bolkms BK117C1 · Main Rotor Mast/Swashplate
  > ON 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 DANVILLE
- [SDR 7KFA486LF](https://openairdocs.org/sdr/7KFA486LF.md): Fastener · missing · Aug 25, 2009 · N486LF · Bolkms BK117C1 · Main Rotor Mast/Swashplate
  > 08/21/2009 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 REP
- [SDR 2009FA0000787](https://openairdocs.org/sdr/2009FA0000787.md): Washer · missing · Aug 25, 2009 · Bolkms BK117C1 · Main Rotor Mast/Swashplate
  > ON 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 FL
- [SDR QMLA2009072509024](https://openairdocs.org/sdr/QMLA2009072509024.md): Cap · misinstalled · Jul 25, 2009 · N811LV · Bolkms BK117C1 · Fuel Storage
  > PILOT 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.
- [SDR RMXA061020097505](https://openairdocs.org/sdr/RMXA061020097505.md): Seal · failed · Jun 10, 2009 · N317MC · Bolkms BK117C1 · Turbine Engine Oil System
  > DURING 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 INT
- [SDR QMLA052309018](https://openairdocs.org/sdr/QMLA052309018.md): Chip Detector · illuminated · May 23, 2009 · N117NC · Bolkms BK117C1 · Tail Rotor System
  > IN 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 COMPLETE
- [SDR 2009FA0000069](https://openairdocs.org/sdr/2009FA0000069.md): Gasket · leaking · Feb 7, 2009 · N273NE · Bolkms BK117C1 · Engine (Reciprocating)
  > TRANSPORTING 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 AREA
- [SDR BAQA200700033](https://openairdocs.org/sdr/BAQA200700033.md): Blade · cracked · Oct 2, 2007 · N117NC · Bolkms BK117C1 · Tail Rotor Blades
  > WHILE PERFORMING A PREFLIGHT A CRACK WAS FOUND IN THE TAIL ROTOR BLADE NEAR THE DATA TAG.
- [SDR BAQA200700032](https://openairdocs.org/sdr/BAQA200700032.md): Fitting · cracked · Sep 24, 2007 · N911TG · Bolkms BK117C1 · Rotorcraft Tail Boom
  > TAILROTOR GEAR BOX MOUNT FITTING AT TOP OF VERTICAL FIN CRACKED AND TAIL ROTOR GEAR BOX MOUNTING STUD ROSSET FITTING LOOSE.
- [SDR RMXA2007](https://openairdocs.org/sdr/RMXA2007.md): Skin Panel · cracked · Sep 20, 2007 · N317MC · Bolkms BK117C1 · Rotorcraft Tail Boom
  > DURING 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.
- [SDR BAQA2007005](https://openairdocs.org/sdr/BAQA2007005.md): Skin · cracked · Jan 30, 2007 · N911TG · Bolkms BK117C1 · Rotorcraft Tail Boom
  > A 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.
- [SDR EHA2004F00002](https://openairdocs.org/sdr/EHA2004F00002.md): Warning Light · illuminated · Jul 3, 2004 · N141LG · Bolkms BK117C1 · Fuel Indicating System
  > NR 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 AIRFRAME
- [SDR BAQA094843](https://openairdocs.org/sdr/BAQA094843.md): Indicator · failed · May 28, 2004 · N911TG · Bolkms BK117C1 · Engine RPM Indicating System
  > NR 2 ENG N1 IND LED DIGITAL DISPLAY DIM/BRITE BULB BURNED OUT. REPLACED WITH SERVICABLE UNIT. 06/04/2004
- [SDR BAQA094478](https://openairdocs.org/sdr/BAQA094478.md): Indicator · burned out · May 11, 2004 · N117KY · Bolkms BK117C1 · Engine RPM Indicating System
  > LED DISPLAY LIGHTING BURNED OUT. REPLACED WITH SERVICABLE UNIT.
- [SDR BAQA094415](https://openairdocs.org/sdr/BAQA094415.md): Control Unit · inoperative · May 3, 2004 · N911TG · Bolkms BK117C1 · Autopilot Computer
  > STRONG 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.
- [SDR BAQA094310](https://openairdocs.org/sdr/BAQA094310.md): Indicator · inoperative · May 3, 2004 · N117NC · Bolkms BK117C1 · Engine RPM Indicating System
  > GAUGE BACKLIGHTING INOPERATIVE. REPLACED WITH SERVICABLE UNIT. 05/05/2004
- [SDR BAQA094402](https://openairdocs.org/sdr/BAQA094402.md): Indicator · inoperative · Apr 30, 2004 · N911TG · Bolkms BK117C1 · Attitude Gyro and Indicating System
  > WHEN FLOWN WITH INDICATOR. WINGS LEVEL IN TRIM A/C MAKES SLOW RT TURN, INDICATOR IS DRIFTING. REPLACED WITH SERVICABLE UNIT. 05/05/2004
- [SDR BAQA094704](https://openairdocs.org/sdr/BAQA094704.md): Bearing · worn · Apr 22, 2004 · N117KY · Bolkms BK117C1 · Tail Rotor Control System
  > BEARINGS WORN AND SLOPPY. REPLACED WITH SERVICABLE UNIT. 05/24/2004
- [SDR BAQA094099](https://openairdocs.org/sdr/BAQA094099.md): Start Valve · inoperative · Apr 3, 2004 · N117KY · Bolkms BK117C1 · Engine Start Valves/Controls
  > WARRANTY - 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, 04/21/2004
- [SDR BAQA094174](https://openairdocs.org/sdr/BAQA094174.md): Blower · noisy · Apr 1, 2004 · N117KY · Bolkms BK117C1 · Air Distribution Fan
  > BLOWER 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). 04/15/2004
- [SDR EHA2004F00001](https://openairdocs.org/sdr/EHA2004F00001.md): Drain Valve · leaking · Mar 14, 2004 · N141LG · Bolkms BK117C1 · Engine Drains
  > PILOT 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 VALVE
- [SDR BAQA093950](https://openairdocs.org/sdr/BAQA093950.md): Lamp · shorted · Mar 12, 2004 · N117KY · Bolkms BK117C1 · Exterior Lighting
  > STROBE LAMP ASSY HAS AN INTERNAL SHORT, WILL NOT FLASH. REPALCED WITH SERVICABLE UNIT 03/26/2004
- [SDR BAQA093829](https://openairdocs.org/sdr/BAQA093829.md): Control Unit · failed · Mar 12, 2004 · N911TG · Bolkms BK117C1 · Autopilot System
  > YAW 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 CL
- [SDR BAQA092596](https://openairdocs.org/sdr/BAQA092596.md): Actuator · failed · Mar 9, 2004 · N117UP · Bolkms BK117C1 · Stabilizer Position Indicating
  > BENCH TEST FOR SERVICEABILITY. REPLACED WITH SERVICABLE UNIT.
- [SDR BAQA092597](https://openairdocs.org/sdr/BAQA092597.md): Actuator · inoperative · Mar 9, 2004 · N117UP · Bolkms BK117C1 · Stabilizer Position Indicating
  > BENCH TEST FOR SERVICEABILITY. REPLACED WITH SERVICABLE UNIT. 03/09/2004
- [SDR BAQA093684](https://openairdocs.org/sdr/BAQA093684.md): Transponder · failed · Mar 9, 2004 · N117UP · Bolkms BK117C1 · ATC Transponder System
  > EXCHANGE. UNIT GIVING WRONG ALTITUDE, BAD WIRES IN UNIT. REPLACED WITH SERVICABLE UNIT. 03/15/2004
- [SDR BAQA093635](https://openairdocs.org/sdr/BAQA093635.md): Blade · damaged · Mar 4, 2004 · N911TG · Bolkms BK117C1 · Engine/Transmission Coupling
  > WARRANTY 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 REP
- [SDR BAQA092751](https://openairdocs.org/sdr/BAQA092751.md): Blade · out of track · Mar 3, 2004 · N911TG · Bolkms BK117C1 · Main Rotor Blades
  > RENTAL 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)
- [SDR BAQA092750](https://openairdocs.org/sdr/BAQA092750.md): Blade · out of track · Mar 3, 2004 · N911TG · Bolkms BK117C1 · Main Rotor Blades
  > RETURN OF RENTAL BLADE AFTER.4 HOURS OF USE, BLADE WOULD NOT TRACK. REPLACED WITH ANOTHER RENTAL BLADE (S/N 2413)
- [SDR BAQA093742](https://openairdocs.org/sdr/BAQA093742.md): Indicator · inoperative · Feb 29, 2004 · N117KY · Bolkms BK117C1 · Engine RPM Indicating System
  > DIGITS UNREADABLE AT NIGHT. REPLACED WITH SERVICABLE ASSET UNIT. 03/12/2004

Next page: https://openairdocs.org/model/kawasaki-bk117c-1/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 = 'BK117C1'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/model/kawasaki-bk117c-1/reports

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