JASC 6240

Service difficulty reports · 677

Reports filed under 6240 · Main Rotor Indicating System, newest first.

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 jasc_code = '6240'
  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 YV3R2019030600041Tachometer · reads lowCUSTOMER REPORTED ROTOR TACHOMETER NEEDLE NOT INDICATING, ENGINE TACHOMETER NEEDLE READS 2% LOW.Feb 27, 2019 · Robsin R44RAVENIISDR YV3R2019012200026Tachometer · defectiveCUSTOMER REPORTED ENGINE NEEDLE PEGS FULL SCALE WHEN POWER IS APPLIED.Feb 15, 2019 · N79RH · Robsin R44SDR YV3R2019012200025Tachometer · bindingCUSTOMER REPORTED NEEDLES WERE HANGING-UP BELOW 70%.Feb 15, 2019 · N950HT · Robsin R44RAVENIISDR YV3R2019012200009Tachometer · intermittentCUSTOMER REPORTED ROTOR NEEDLE STICKS AT ZERO INTERMITTENTLY, ENGINE NEEDLE READS 3% HIGH.Jan 18, 2019 · Robsin R44SDR CA150812004Horn · failed(CAN) LOW ROTOR HORN FAILED, REMAINED QUIET AT SHUTDOWN.Aug 7, 2015 · Bell 206BSDR CA130719004Tachometer · binding(CAN) DURING GROUND RUN FOLLOWING 50 HOUR INSPECTION THE DUAL TACH WAS FOUND TO BE STICKING ON START-UP. DUAL TACH REPLACED.Jul 13, 2013 · Robsin R44RAVENIISDR CA130225021Tachometer · slow(CAN) NR 1 NEEDLE SLOW TO COME ON LINE.Feb 25, 2013 · Bell 212SDR QMLA2013012613012Indicator · activatedPILOT ON APPROACH TO LAND, MAST MOMENT INDICATOR PEGGED TO THE RT AND CONTINUED TO FLUCTUATE. VEMD SHOW OBVIOUS INDICATOR ERRORS OF EXCEEDANCE AT 64 PERCENT FOR 29 SECONDS 111.1 PERCENT, AT 77 PERCENT FOR 20.6 SECONDS, 111.1 PERCENT AND AT 90 PERCENT FOR 14 SEJan 26, 2013 · N184WK · Bolkms BK117C2SDR 2012F00101Tachometer · separatedTHE PLASTIC FACE FELL OFF THE SENSOR TACH AND PULLED THE COPPER WIRE OUT OF THE SENSOR WRAPING AROUND THE PHONIC WHEEL, CAUSING OTHER DAMAGE.Apr 16, 2012 · N216CH · Snias AS350B2SDR PG92011F00005Sensor · debondedINTERNAL COMPONENTS OF THE NR SENSOR DEBONDED AND EXTRUDED FROM THE SENSOR HSG. THE EXTRUDED PARTS THEN CONTACTED THE ROTATING COG WHEEL OF THE MAIN ROTOR MAST SYS, DAMAGING THE SENSOR, THE ROTATING COG WHEEL ALSO SUSTAINED DAMAGE DUE TO CONTACT AND CAUSED POAug 17, 2011 · N894PA · Urocop EC130B4SDR EVCA00017Shaft · shearedTHE DRIVE ADAPTOR SPLINE CONNECTION BETWEEN THE ROTOR TACH GENERATOR AND THE TRANSMISSION OIL PUMP SHEARED, RESULTING IN LOSS OF HYD PRESSURE AND ROTOR SPEED INDICATION.Aug 10, 2011 · N325AE · Bell 206L4SDR RMXA308855ASensor · defectivePILOT REPORTED A LOSS OF NR INDICATION DURING FLIGHT. PILOT ELECTED TO MAKE A PRECAUTINARY LANDING. TECH WAS DISPATCHED BUT DUE TO THE LOCATION AND SECURITY OF THE ACFT, ELECTED TO HAVE THE ACFT TRANSPORTED TO THE MX FACILITY FOR FURTHER TROUBLESHOOTING. THE Jul 23, 2011 · N3866 · Snias AS350B3SDR CA100713007Warning System · failedLOW ROTOR RPM WARNING UNIT REPLACED DUE TO NO WARNING DURING FUNCTIONAL CHECK.Jul 11, 2010 · Robsin R44RAVENIISDR 2010FA0000514Tach Generator · malfunctionedHYD PRESSURE FAILURE IN FLIGHT, ACCOMPANIED BY LOSS OF ROTOR TACH NEEDLE (WENT TO ZERO) AND LOW ROTOR RPM CAUTION LIGHT ILLUMINATION.May 24, 2010 · N116TV · Bell 206L3SDR RMXA051520100800Transducer · unserviceableDURING FLIGHT, THE MAIN TRANSMISSION OIL PRESSURE INDICATION FLUXUATED. PILOT PERFORMED A PRECAUTIONARY LANDING SHORT OF BASE. TECH DETERMINED THE TRANSMISSION OIL PRESSURE TRANSDUCER WAS DEFECTIVE. REPLACEMENT PART ORDERED.May 15, 2010 · N436CM · Urocop EC135P2SDR 2009F00076Indicator · erraticMAIN TRANSMISSION OIL PRESSURE GAUGE. NR 1 AND NR 2 ON SINGLE GAUGE. NR 1 NEEDLE ERRATIC DURING GROUND RUNS. RECEIVED GAUGE AS REPAIRED UNIT.Aug 19, 2009 · N990SL · Bolkms BK117B2SDR QML2008F00010Chip Detector · shortedWHILE ENROUTE TO MEDICAL FACILITY, TRANSMISSION CHIPS LIGHT ILLUMINATED AND EMERGENCY PROCEDURE WAS EXECUTED TO AN OPEN FIELD. ALL TRANSMISSION RELATED CHIP PLUGS WERE INSPECTED AND APPEARED TO BE CLEAN. PILOT RAN ACFT UP AND COULD NOT GET THE SAME FAULT TO Sep 19, 2008 · N247SM · Bell 407SDR BAQQ200700024Speed Switch · dirtyDURING FLIGHT TO PICKUP PATIENT, ROTOR TACH NEEDLE INDICATED ZERO. ABORTED FLIGHT AND NOTIFIED MECHANIC. RETURNED TO BASE FOR MAINTENANCE. DURING TROUBLESHOOTING, MECHANIC CLEANED CONNECTIONS AT THE MAG PICKUP AND THE TRIPLE TACH. OPERATIONAL CHECK AND GROUND Jun 28, 2007 · N906GL · Bolkms BK117C2SDR CA060606001Warning Horn · intermittent(CAN) WARNING HORN WOULD NOT BE TRIGGERED BY THE COLLECTIVE MICRO SWITCHES. THE UNIT WOULD ONLY CLICK WHEN ACTIVATED AND TAPPING DIRECTLY ON THE UNIT WOULD THEN TRIGGER THE HORN. WIRING WAS CORRECT, AND NOT PART OF THE SNAG. (TC NR 20060606001)Jun 5, 2006 · Robsin R44RAVENIISDR CA060606002Warning Horn · failed(CAN) LOW ROTOR RPM WARNING HORN NOT SOUNDING. REPLACED WITH A SERVICEABLE UNIT, NO FURTHER FAULTS FOUND. (TC NR 20060606002)May 12, 2006 · Robsin R44RAVENIISDR KBM2006F00176Tachometer · fluctuatesDUAL TACH, NTL NEEDLE FLUCTUATES IN FLIGHT, REMOVED AND REPLACED. (K)Apr 27, 2006 · N966SH · Snias AS350B2SDR KBM2006F00140Detector · faultyFSPU DETECTOR, NR WARNING HORN STAYS ON IN FLIGHTGATE, REMOVED AND REPLACED. (K)Mar 29, 2006 · N350SH · Snias AS350B2SDR KBM2006F00068Indicator · reads highNR ROTOR INDICATOR READING 10 RPM HIGHER THEN MICRO TECH, REMOVED AND REPLACED. (K)Feb 20, 2006 · N1188P · Snias AS350BASDR KBM2006F00029Indicator · inoperativeUNIT REPORTS ON THE GROUND AND IN THE AIR 400. REMOVED AND REPLACED. (K)Jan 10, 2006 · N37SH · Snias AS350BASDR KBM2006F00015Transmitter · fluctuatesTORQUE TRANSMITTER, UNIT FLUCTUATES, REMOVED AND REPLACED. (K)Dec 28, 2005 · N313LV · Snias AS350B2SDR CA060306016Tachometer · failed(CAN) NO ROTOR TACH INDICATION. REPLACED TACH. (TC NR 20060306016)Oct 28, 2005 · Bell 206BSDR KBM2005F00316Gauge · fluctuatesNR GAUGE, UNIT FLUCTUATION FROM 250-350 RPM STUCK AT 350. REMOVED AND REPLACED. (K)Oct 2, 2005 · N37SH · Snias AS350BASDR CA050706003Governor · overspeedWHILE MOVING HELICOPTER IN A HOVER, PILOT NOTICED A POWER ON OVERSPEED AT APROX 114 PERCENT ROTOR AND ENGINE. GOVERNOR WAS CONFIRMED TO BE ON BY THE PILOT. GOVERNOR SWITCH RESET BETWEEN OFF AND ON POSITION WITHOUT A CHANGE. IMMEDIATE LANDING CARRIED OUT. SJun 30, 2005 · Robsin R44SDR AC2A100746Pressure Switch · malfunctionedSWITCH WAS GIVING INDICATION OF LOW TRANSMISSION OIL PRESSURE. / REPLACED SWITCHMay 6, 2005 · N427CK · Bell 427SDR KBM2005F00083Indicator · failedDUAL TACH, NEEDLE WILL NOT PROVIDE READING. REMOVED AND REPLACED. (K)Apr 2, 2005 · N677JM · Cessna 501SDR CA050309011Tach Generator · worn(CAN) DURING ROUTINE MAINTENANCE WORN SPLINES WERE FOUND. NOTE: THESE SPLINES DRIVE THE HYDRAULIC PUMP. TACH GENERATOR WAS REMOVED AND SENT FOR OVERHAUL. PART WAS RETURNED 2 MONTHS LATER WITH NEW PAINT AND THE SAME WORN OUT SPLINES. OLD GREASE WAS STILL IN THMar 7, 2005 · Bell 206L1SDR CA060306009Horn · failed(CAN) HORN NOT PRODUCING HORN SOUND. HORN REPLACED. (TC NR 20060306009)Nov 11, 2004 · Robsin R44SDR KBM2004F00162Indicator · fluctuatesGAUGE FLUCTUATES. REMOVED AND REPLACED.May 16, 2004 · N37SH · Snias AS350BASDR CA040527001Transducer · shortedAFTER MAIN ROTOR GEAR BOX REPLACEMENT GROUND RUN WAS ACCOMPLISHED, HOWEVER NO INDICATION WAS PRESENT. DISCOVERED AFTER CONTINUITY CHECKS THAT THE TRANSDUCER WAS OPEN CIRCUIT. REPLACED PART INDICATION NORMALMay 12, 2004 · Snias AS350B3SDR BAQA092494Pickup · fluctuatesCORE RETURN FOR WARRANTY PO 202294001, CAUSING NEEDLE FLUCTUATIONS AND LIGHT REPLACED WITH SERVICABLE UNIT FROM AEC, 04/28/2004.Mar 30, 2004 · N577LF · Urocop EC135P1SDR BAQA093299Indicator · failedSELF-TEST ON POWER UP FAILED MULTIPLE TIMES. REPLACED WITH SERVICABLE UNIT. 03/01/2004Feb 24, 2004 · N603ME · Urocop EC135P2SDR BAQA092395Signal Cond Unit · inoperativeMMI INOPERATIVE. REPLACED WITH SERVICABLE UNIT. 02/04/2004Jan 20, 2004 · N911NH · Urocop EC135T1SDR CA031212006Drive Assy · corroded(CAN) PILOT REPORTED LOST ROTOR TACH INDICATION. ROTOR DRIVE CABLE WAS REMOVED FROM ITS OUTER SHEATH FOR INSPECTION AND WAS FOUND SNAPPED IN TWO JUST BEFORE IT ENTERS INTO THE TRANSMISSION. IT WAS REMOVED PREVIOUSLY DUE TO REPORT THAT ROTOR NEEDLE WAS BOUNCINGDec 10, 2003 · Scwzer 269DSDR BAQA089830Indicator · erraticINDICATOR WILL NOT GO FULL SCALE DEFLECTION, AND FLUCTUATES ERRATICALLY. REPLACED WITH SERVICEABLE UNIT. 11/18/03Nov 13, 2003 · N945ME · Bolkms BK117B1SDR I05R091298Amplifier · failedSENSOR AMPLIFIER FAILURE, REPLACED PART.Oct 23, 2003 · N551BA · Urocop EC135P1SDR 2003F00639Chip Detector · failedC/FL (CHIP DETECTOR FAILURE) LIGHTS INTERMITTENT.Oct 16, 2003 · N430CM · Bell 430SDR BAQA089177Indicator · erraticTRIPLE TACH INDICATOR ERRATIC AT LOW RANGE. SPLIT AT 360/350. REPLACED WITH SERVICEABLE UNIT.Sep 25, 2003 · N89SM · Aerosp SA365NSDR I05R089503Amplifier · inoperativeSENSOR AMPLIFIER INOPERATIVE REPLACED PARTSep 25, 2003 · N551BA · Urocop EC135P1SDR BAQA088853Indicator · intermittentTRIPLE TACH BOTH N2 INDICATIONS FALL OFF LINE INTERMITTENTLY. REPLACED WITH SERVICEABLE UNIT.Aug 26, 2003 · N137MH · Urocop EC135P1SDR ALGA088882Indicator · stuckDUAL TACH NP NEEDLE STUCK AT 16 PERCENT.Aug 26, 2003 · N557AL · Bell 407SDR BAQA088264Indicator · inoperativeTRIPLE TACH NR 1 NEEDLE IS INOPERATIVE. THIS UNIT LASTED FOR 5 DAYS (11.2) HOURS. REPLACED WITH SERVICEABLE UNIT.Aug 22, 2003 · N213AE · Bolkms BK117B1SDR BAQA088896Indicator · inoperativeTRIPLE TACH NR 1 NEEDLE IS INOPERATIVE. THIS UNIT LASTED FOR 5 DAYS (11.2) HOURS. REPLACED WITH SERVICEABLE UNIT.Aug 22, 2003 · N213AE · Bolkms BK117B1SDR BAQA088822Indicator · malfunctionedTRIPLE TACH N2 WILL NOT GO ABOVE 100 PERCENT (LAGS BEHIND). REPLACED WITH SERVICEABLE UNIT.Aug 15, 2003 · N213AE · Bolkms BK117B1SDR ALGA088662Indicator · malfunctionedREPAIR DUE TO ROTOR NEEDLE FALLS TO ZERO WHEN THROTTLE IS REDUCED.Aug 6, 2003 · N557AL · Bell 407SDR AC2A093328Chip Detector · shortedCHIP DETECTOR CIRCUIT-SHORTED. DETECTOR CAUSES PLANETARY LIGHT TO STAY ILLUMINATED. REPLACED PART.Jul 26, 2003 · N430CM · Bell 430
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