JASC 6140

Service difficulty reports · 292

Reports filed under 6140 · Propeller Indication 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 = '6140'
  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 2026FA0000059Tach Generator · looseON 12/25/25, WE HAD AN INFLIGHT EMERGENCY DECLARED BY THE FLIGHT CREW FOR #1 ENGINE PROP SPEED ERRATIC. THE CREW REPORTED THE #1 ENGINE PROPELLER SPEED WAS JUMPING AROUND BETWEEN 1400 AND 1900 IN CLIMB SHORTLY AFTER TAKEOFF. THE CREW SAID ALL OTHER ENGINE INDIDec 25, 2025 · N971LA · Textrn 408SDR OZCA90130MAR21Propeller · low pressureDURING CRUISE FLIGHT AT 13000, WE HAD PROP OIL PRESSURE LOW ON #1 ENGINE. PROCEEDED ACCORDING TO QRH PG E3-6Mar 30, 2021 · N901BC · Saab SF340ASDR RU3A20190827044Proximity Switch · failedRT PROP PITCH ANNUNCIATOR ON INTERMITTENTLY IN FLIGHT. ISSUE RESOLVED BY REPLACEMENT OF THE RIGHT PROXIMITY SWITCH.Aug 27, 2019 · N79 · Beech 300BEECHSDR RU3A201908197040Proximity Switch · failedRT PROP PITCH LIGHT FAST FLICKERS AND COMES ON BEFORE LEFT. FLICKERS ON SHUTDOWN AS WELL. R/H ENGINE PROXIMITY SWITCH WAS FOUND TO HAVE FAILED. REPLACED SWITCH. NO FURTHER ACTION REQUIRED.Aug 16, 2019 · N75 · Beech 300BEECHSDR RU3A20190326010Proximity Switch · out of adjustLEFT PROP PITCH LIGHT ILLUMINATED IN FLIGHT. LASTED APPROX 10 MIN. ISSUE WAS CLEARED FOLLOWING THE CLEANING AND ADJUSTMENT OF PROXIMITY SWITCH.Mar 22, 2019 · N69 · Beech 300BEECHSDR QXEA2019031300115Warning System · activatedNR 1 PROP SPEEC 1070 WITH ASSOICATED NR 1 PEC CAUTION AND POWERPLANT MESSAGE. SHUTDOWN ENGINE IN FLIGHT AND RETURND TO FIELD. LANDING UNEVENTFUL, NOT OVERWEIGHT. AIRCRAFT OUT OF SERVICE FOR REPAIRS.Mar 12, 2019 · N444QX · Bombdr DHC8402SDR RU3A20181204049Proximity Switch · out of adjustRIGHT PROP PITCH ANNUNCIATOR ILLUMINATED IN FLIGHT. THE PROBLEM WAS SOLVED BY ADJUSTING THE PROXIMITY SWITCH. NO FURTHER ACTION REQUIRED.Dec 4, 2018 · N72 · Beech 300BEECHSDR RU3A2018F00127Proximity Switch · faultyL PROP PITCH CAUTION LIGHT ILLUMINATED IN FLIGHT (CRUISE, 200 KTS, 5000') CAUSED BY FAULTY PROX SWITCH. INSTALLED NEW PROX SWITCH. OPERATIONAL CHECK SATISFACTORY.Oct 1, 2018 · N69 · Beech 300BEECHSDR RU3A2018092119041Proximity Switch · brokenRT PROP PITCH LIGHT ILLUMINATED IN FLIGHT CAUSED BY A FAULTY PROXIMITY SWITCH. PROXIMITY SWITCH WAS REPLACED. OPERATIONAL CHECK WAS GOOD.Sep 19, 2018 · N72 · Beech 300BEECHSDR 2019F00058Signal Cond Unit · failedPROPELLER OVERSPEED INDICATION ENG#1. AIRCRAFT TURN BACK TO AIRPORT AFTER SHUTTING DOWN AFFECTED ENGINE ACCORDING TO PROCEDURE. CORRECTIVE ACTION: SIGNAL CONDITIONER UNITS SWAPPED BETWEEN ENG#1 AND ENG #2. CLEANED OVERSPEED GOVERNOR SOLENOID VALVE CONNECTOR. EAug 12, 2018 · Dhav DHC8202SDR RU3A201805216018Switch · failedRIGHT PROPELLER PITCH LIGHT ILLUMINATED AFTER TAKEOFF. REPLACED A FAULTY PROPELLER SWITCH. NO FURTHER ACTION REQUIRED.May 16, 2018 · N72 · Beech 300BEECHSDR CA180423014Gear · damaged(CAN) AFTER LANDING THE PILOT WENT TO SPIN THE PROPELLER, PER ROUTINE PROCEDURES, AND FOUND THAT THE ENGINE WOULD NOT TURN. AFTER SEVERAL ATTEMPTS THE ENGINE DID ROTATE, BUT A REASON FOR THE PROBLEM COULD NOT BE DETERMINED. THE ENGINE WAS REPLACED AND IS NOWApr 19, 2018 · Mtsbsi MU2B60SDR VGCA20161114001Tachometer · false indicationNR 2 ENGINE EXPERIENCED A PROP OVERSPEED CONDITION. PRECAUTIONARY ENGINE SHUTDOWN. TACHOMETER FOUND TO BE GIVING A FALSE INDICATION.Nov 14, 2016 · N361FL · Cvac STC3405800SDR HNAA2016071100213Indicator · inoperativeNR 2 PROPELLER N/P INDICATOR ANALOG NEEDLE WILL NOT TEST. STUCK AT ZERO. RETURN TO GATE. R & R THE NR 2 PROPELLER INDICATOR. OPS CHECKED GOOD IAW AMM 61-44-00. OKAY FOR SERVICE.Jul 9, 2016 · N814EX · Dhav DHC8102SDR CA151224002Switch · faulty(CAN) FLIGHT CREW REPORTED THAT THE BETA WARNING SOUNDED AT APPROX FL40, AT 1200 RMP AND C/L AT MAX. CONTINUOUS. AIRCRAFT RETURNED TO DEPARTURE AIRPORT. MAINTENANCE ACTION, BETA WARNING MICRO SWITCH ACTUATOR REPLACED, ADJUSTED, AND TESTED SERVICEABLE AS PER ADec 21, 2015 · Dhav DHC8311SDR CA150714013Switch · shorted(CAN) FLIGHT CREW REPORTED THAT DURING TAKEOFF THE NR 1 ENG HAD TORQUE & PROP FLUCTUATIONS & AS A RESULT THEY DID A PRECAUTIONARY SHUTDOWN OF THE NR 1 ENG. THE ACFT RETURNED TO THE DEPARTURE AIRPORT. TROUBLESHOOTING DETERMINED THAT THE ENG PARAMETER FLUCTUATJul 12, 2015 · Dhav DHC8102SDR HNAA2015062400206Relay · no testBETA LOCKOUT WILL NOT TEST. R & R RELAY 3313-K1 IAW WIRING MANUAL 32-42-00. OPS CHECKED GOOD IAW MM 61-42-00. PERFORMED WC 61-20-10Q. OK FOR SERVICE.Jun 24, 2015 · N814EX · Dhav DHC8102SDR O2GA2015052280201Proximity Switch · defectiveON CLIMB OUT THE RT PROPELLER PITCH ANNUNCIATOR ILLUMINATED. ACFT WAS DIVERTED BACK FOR MX. TROUBLE SHOT THE DISCREPANCY & FOUND A DEFECTIVE RT PROXIMITY SWITCH. ENG RUNS WERE PERFORMED & SYS OPERATIONAL CHECKS WERE GOOD. ACFT WAS RETURNED TO SERVICE.May 18, 2015 · N802UP · Beech B300SDR HNAA2015020600034Indicator · malfunctionedREJECTED T/O DUE TO NR 2 PROPELLER REACHED 1243 RPM FOR APPROX 5-10 SEC. R &R NR 2 PROP INDICATOR & NR 2 NP PROBE AS REQUIRED. R & R NR 2 HORSECOLLAR PANEL. RAN ENGINES PERFORMED ALL REQUIRED OPS CHECKS. OPS CHECK GOOD AT THIS TIME.Feb 5, 2015 · N934HA · Dhav DHC8102SDR O2GA2014071582701Switch · intermittentPROP GND SOL ANNUCIATOR ILLUMINATED IN FLIGHT. COMPLIED WITH CHECKLIST & ANNUNCIATOR EXTINGUISHED. REPLACED THE PROPELLER GND FINE SWITCH IN THE PEDESTAL & PERFORMED A SUCCESSFUL OPERATIONAL CHECK. ACFT RETURNED TO SERVICE.Jul 7, 2014 · N827UP · Beech B300SDR JJBA20140622011Unknown · malfunctionedNUMBER 2 PROP DID NOT COME OUT OF 900 RPM WHEN CREW TRIED TO INCREASE TO 1200 RPM ON LANDING. GND RAN ACFT, INSPECTED NR 2 ENG PUSHRODS TO PCU & NO DEFECTS FOUND. OCF REQUIRED.Jun 22, 2014 · N838CA · Bombdr DHC8400SDR 29GA2014060900001Sensor · malfunctionedDURING CRUISE, LEFT PROPELLER DROPPED FROM 1230-1100 RPM, FOLLOWED BY A DROP FROM 1230-800 RPM TWICE WAS NOT AN INDICATION EVENT, RETURNED TO DEPARTURE, LANDED WITHOUT INCIDENT. REPLACED PROPELLER SPEED INDICATOR AND SPEED SENSOR.Jun 6, 2014 · N347AG · Saab 340BSDR ERAA20140022Indicator · inoperativeLEFT PROP GAUGE INOPERATIVE ON TAKEOFF ROLL. R & R PROP INDICATOR, OPERATIONS CHECKED GOOD IAW MM 31-10-00.Apr 18, 2014 · N972EA · Beech 1900DSDR RU3A20140131002Warning Light · illuminatedNUMBER 2 RT PROP PITCH LIGHT ILLUMINATED ON APPROACH TO LANDING & REMAINED ON UNTIL SHUTDOWN.Jan 28, 2014 · N80 · Beech 300BEECHSDR HNAA2013122300627Warning Horn · false activationBETA LOCKOUT HORN CAME ON AFTER 50 FEET CONTINUOUSLY. RETURN TO FIELD, FUNCTION CHECKED SYSTEM. OPS CHECKED OK IAW 61-20-10.Dec 23, 2013 · N809EX · Dhav DHC8102SDR GLBA2013102200342Indicator · malfunctionedPILOT REPORTED AFTER TAKE OFF, LT PROP RPM ROSE TO 1730 FOR 15 SECS, PULLED BACK PROP LEVERS AND CONTINUED TO CLIMB, LEVELED OFF AND TRIED TO SYNC PROPS, RECEIVED A VIBRATION, TURNED OFF PROP SYNC AND SYNC'D, NR 1 AT 1400 AND NR 2 AT 1550, STARTED LOSING PROPOct 21, 2013 · N202UX · Beech 1900DSDR HNAA2013032900187Lockout · intermittentDURING NR 2 BETA LOCKOUT TEST, WITH BETA TEST SWITCH AT LOCKOUT AND NR 2 PROP INDICATOR BETA LOCK TEST BUTTON PRESSED, NR 2 PROPELLER GROUND RANGE LIGHT ILLUMINATED. PROBLEM IS INTERMITTENT. BETA LOCKOUT SYS WITH CR AND MOD DEACTIVATED IAW APPENDIX 1,61-4.Mar 29, 2013 · N808EX · Dhav DHC8102SDR RNVA20130325005Indicator · faultyON 2/05/2013 PILOT REPORTED THAT PROP RPM EXCEEDED 1900 RPM, MAINTENANCE PERFORMED GROUND RUN AND COULD NOT DUPLICATE PROBLEM. THE AIRCRAFT WAS FLOWN BY OTHER PILOTS WITHOUT ANY PROP OVERSPEED ISSUE. ON 2/15/2013 PILOT REPORTED AGAIN THAT HE HAD A PROP OVERSFeb 5, 2013 · N308PW · Cessna 208BSDR HNAA2012080600899Warning Horn · false activationBETA LOCKOUT WARNING HORN SOUNDED AFTER TAKEOFF AND BECAME SILENT AFTER LANDING. RETURNED TO FIELD. BETA LOOCKOUT SYS WITH CR AND MOD COMPLIED WITH APPENDIX 1 /61-4.Aug 6, 2012 · N814EX · Dhav DHC8102SDR HNAA2012080600898Warning Horn · false activationBETA WARNING HORN SOUNDED ON TAKEOFF AFTER 50 FT, CONTINUED TO SOUND UNTIL RETURN TO FIELD, SILENCED AFTER 50 FT WAS REACHED. BETA WARNING HORN SYS WITH MOD PULLED AND COLLARED CIRCUIT BREAKER C8 LEFT MAIN BUSS.Aug 6, 2012 · N814EX · Dhav DHC8102SDR II9A20120719001Tach Generator · defectiveRPM DECREASED AND FLUCTUATING LEFT ENGINE. SHUT ENGINE DOWN AS PRECAUTION.Jul 19, 2012 · N228ST · Dorner DO228212SDR NSVA20120421521Transducer · faultyGATE RETURN DUE TO MX (POWERPLANT MESSAGE). MX REQUESTED EMU DOWNLOAD DUE TO REPEAT WRITE UP. FAULT CODE SHOWS CLEAR FAULT WITH NR 2 BFT CHANNEL. REMOVED AND REPLACED BETA FEEDBACK TRANSDUCER OPS CHECK GOOD.Apr 21, 2012 · N187WQ · Bombdr DHC8402SDR HNAA2012022100599Switch · inoperativeNR 2 BETA LOCKOUT FAILED AFTER TAKE OFF. RETURNED TO FIELD. R & R BETA LOCKOUT SWITCH 6141-S6, NO FIX. R & R PLA SWITCH 6141-S4. OPS CHECKED GOOD. PERFORMED BETA LOCKOUT TEST FUNCTION, CHECK IAW RUN MANUAL. OPS CHECK GOOD.Feb 20, 2012 · N335EN · Dhav DHC8311SDR HNAA2012012600506Indicator · erraticNR 1 N/P INDICATOR VERY ERRATIC DIGITAL AND ANALOG AT 1050 RPM NR 1 PROP SOUNDED ERRATIC. SMOOTHED OUT AT 900 RPM. R & R INDICATOR IAW CHAPTER 20.Jan 27, 2012 · N837EX · Dhav DHC8102SDR HNAA2011090100264Pcu · failedON CLIMB OUT, NR 2 NP REACHED 1245 AND DROPPED TO 1236, THEN CREW RETARDED TO 1050 AND RETURNED TO FIELD. PROP OVERSPEED WITHIN LIMITS OF MM 61-10-00. R & R NR 2 PCU IAW WC 61-10-10. OPS CHECKED GOOD.Aug 21, 2011 · N936HA · Dhav DHC8102SDR HNAA2011081700258Electronic Unit · failedAUTOFEATHER ARM LIGHT REMAINED ILLUMINATED INFLIGHT UNTIL TORQUE REDUCED BELOW 80 PERCENT, NR 1 TORQUE INDICATOR ERRATIC AND STICKS. R & R TSEU USING RETAINED HARDWARE AND RESECURED ALL CONNECTOR PLUGS AND BONDING WIRE. GROUND RAN ACFT WITH OPS CHECKS. OPS CHAug 14, 2011 · N931HA · Dhav DHC8102SDR CA110804008Tach Generator · failedACFT WAS ON A ROUTINE FLIGHT. WHEN THE NP (PROP SPEED) INDICATION WENT TO ZERO. THE TACH GENERATOR WAS REPLACED WITH AN O/H UNIT WITH OUT FURTHER INCIDENT.Jul 28, 2011 · Beech B200SDR RU3A1113Proximity Switch · defectiveIN CRUISE FLIGHT AT 16000 MSL, RIGHT PROP PITCH ANNUNCIATOR ILLUMINATED. NO OTHER INDICATIONS ON INSTRUMENTS. NO AFFECTS ON AIRCRAFT HANDLING WERE DETECTED IN FLIGHT. CREW ELECTED TO RETURN TO HOME BASE. IN ANTICIPATION OF POSSIBLE ASYMMETRIC THRUST ON LANApr 5, 2011 · N76 · Beech 300BEECHSDR CA101216002Drive Shaft · unserviceable(CAN) THE PROP INDICATION WENT TO "0" IN FLIGHT - THE DRIVE SHAFT ON THE TACH GENERATOR WAS FOUND TO BE WORN TO THE POINT WHERE IT WAS SPINNING INSIDE THE ENGINE DRIVE.Dec 15, 2010 · Beech 1900DSDR NSVA2010116Warning System · malfunctionedABORTED TAKEOFF FOR AUTO COARSEN LIGHT. PERFORMED AUTO COARSEN TEST, OPS CHECKED GOOD.Jul 7, 2010 · N362PX · Saab 340BSDR CA100528005Beta Switch · unserviceableLT BETA LIGHT CAME ON DURING TAKEOFF ROLL. PILOT ABORTED TAKEOFF - MX REPLACED BETA LIGHT SWITCH AND ACFT RETURNED TO SERVICE AFTER SERVICEABLE GROUND RUN.May 25, 2010 · Frchld SA227DCSDR GLBA200911221Indicator · inoperativeUPON APPLICATION OF TAKEOFF POWER ON RUNWAY, THE NR 2 PROP GAUGE WENT TO ZERO.Nov 22, 2009 · N231YV · Beech 1900DSDR GLBA20091120AGauge · inoperativeABORTED TAKEOFF - UPON APPLYING TAKEOFF POWER ON THE RUNWAY, PILOTS REPORTED THAT THE NR 2 PROPELLER GAUGE WENT TO ZERO. MX REMOVED AND REPLACED THE NR 2 PROPELLER GAUGE IAW MM 31-10-00 AND OPERATIONALLY CHECKED THE SYS WHICH WAS GOOD.Nov 20, 2009 · N96ZK · Beech 1900DSDR SWIA200922647Warning System · malfunctionedTRIPLE CHIME "TAKEOFF, AUTO FEATHER" WARNING. (FLT 7779) AUTO FEATHER TEST AND ENGINE RUNS NORMAL.Sep 16, 2009 · N216SW · Emb EMB120SDR GLBA20090703ATach Generator · deterioratedABORTED TAKEOFF, PILOTS REPORTED THAT AT TAKEOFF POWER THE PROPELLER RPM ON THE LT SIDE EXCEEDED 2000 RPM AND THE TAKEOFF WAS ABORTED. MX REMOVED AND REPLACED NR 1 PROPELLER TACH GENERATOR IAW 67D MM 70-00-00. OPS AND LEAK CHECKS WERE GOOD IAW MM 77-10-00.Jul 3, 2009 · N195GL · Beech 1900DSDR JJBA200972549Torque Sensor · false activationAFTER T/O AT 700 FT NR 2 PROP WENT INTO FEATHER. PILOT SHUTDOWN NR 2 ENGINE, DECLARED EMERGENCY, RETURNED TO FIELD (PIT) SAFELY. MAINT CREW FOUND THAT NR 2 TORQUE SIGNAL CONDITIONER FAILED. REMOVED AND REPLACED NR 2 TSCU. PERFORMED A TEST FLIGHT. TEST FLIJun 22, 2009 · N374PH · Dhav DHC8202SDR GLBA20090520FCircuit Board · failedPILOTS REPORTED THAT THE AFX ANNUNCIATORS AND REPEATER LIGHTS EXTINGUISHED AFTER V. THE AFX FAULT ANNUNCIATOR DID NOT ILLUMINATE. MAINT REMOVED AND REPLACED THE PRINTED CIRCUIT BOARD A123 IAW 1900D MM 61-20-00. MAINT ADDTIONALLY COMPLIED WITH FLEET CAMPAIGN DIMay 18, 2009 · N237YV · Beech 1900DSDR GLBA200904191Gasket · damagedAFTER TAKEOFF, PROP GAUGE FOR NR 1 ENGINE DROPPED TO 0 RPM AND REMAINED THERE FOR THE REMAINDER OF THE FLIGHT AND TAXI. MAINTENANCE R & R NR 1 ENGINE TACH GENERATOR. MAINTENANCE THEN INSTALLED A GASKET, TACH GEN, AND GROUND RAN NR 1 ENGINE WHICH OPERATIONALLApr 19, 2009 · N153GL · Beech 1900DSDR COEA2009012301700Indicator · malfunctionedABORTED TAKEOFF. DURING TAKEOFF ROLL, THE PROPELLER SPEED CAME UP TO ONLY 1300 RPM. NORMAL RPM IS 1900. THE PILOT ABORTED TAKEOFF AND THE ACFT SAFELY RETURNED TO THE RAMP. REPLACED NP (PROPELLER RPM) INDICATOR.Jan 22, 2009 · N700FX · Cessna 208BSDR SWIA200820505Propeller · surgesFLT 7802 - RIGHT PROP NP ABOVE TOLERANCES ON CLIMB-OUT. RAN ENGINES, UNABLE TO DUPLICATE.Nov 23, 2008 · N561SW · Emb EMB120ER
Back to JASC 6140