JASC 6122

Service difficulty reports · 708

Reports filed under 6122 · Propeller Governor, 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 = '6122'
  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 99ZZZM755Prop Governor · failedRIGHT PROP RPM SURGED TO 1800 RPM AT TAKEOFF SETTING. UNIT REPLACED, GROUND RUN AND TEST FLIGHT PERFORMED. (M)Oct 3, 1999 · N845CA · Beech 1900DSDR 99ZZZX4017Drive Gear · misinstalledCUSTOMER STATED PROP SYNCRONIZING INOPERATIVE. FOUND INCORRECT DRIVE GEAR INSTALLED IN COMPONENT.Sep 21, 1999SDR RAIA990833Prop Governor · failedFLT 4718 - SMF - RIGHT BETA LIGHT ON DURING TAXI. MAINTENANCE REPLACED RIGHT PROP GOVERNOR. (M)Aug 25, 1999 · N867AE · Bag JETSTM3201SDR CA990907087Governor · malfunctioned(CAN) PROPELLER UNDERSPEED AT TAKEOFF, GOVERNOR SENT FOR TEAR DOWN.Aug 25, 1999 · Piper PA31350SDR MASA99141Governor · failedFLT 6461 - FMN-PHX - AFTER DEPARTURE FROM FMN, THE CREW REPORTED THAT BOTH PROPELLERS WOULD NOT EXCEED TO 1550 RPM. THE AIRCRAFT RETURNED TO THE FIELD. MAINTENANCE REMOVED AND REPLACED THE RIGHT OVERSPEED GOVERNOR. ALSO, INSPECTED THE LEFT PROPELLER, NO DISAug 17, 1999 · N132YV · Beech 1900DSDR 99ZZZX2657Tube Assy · crackedPRE-TAKEOFF ENGINE RUNS COMPLETED, PILOTS TAXIED OUT ONTO ACTIVE, APPLIED TAKEOFF POWER, NR 1 ENGINE NO RESPONSE. RETURNED TO LINE, AND SHUT DOWN. MAINTENANCE INSPECTED AND FOUND TUBE ASSY CRACKED AT B-NUT FITTING AT REAR OF ENGINE. THIS TUBE IS STAINLESS SJul 1, 1999 · N1549 · Beech A200SDR 99ZZZX2820Governor · fluctuatesRIGHT ENGINE TORQUE FLUCTUATION ON TAKEOFF. GOVERNOR REPLACED WITH NEWLY OVERHAULED UNIT. SYSTEM OPERATIONAL AND LEAK CHECKED SATISFACTORILY IAW PRATT & WHITNEY CANADA MM, CHAPTER 61-20-00. (X)Jun 22, 1999 · N856CA · Beech 1900DSDR AU990574Diode · intermittent(AUS) LT ENGINE PROPELLER FEATHER VALVE DIODE BLOCK INTERMITTENT IN OPERATION.Jun 17, 1999 · Dhav DHC8102SDR CA990630079Governor · failed(CAN) P.C.U. FAILURE CAUSED AN OVERSPEED CONDITION. P.C.U REPLACED ALONG WITH ENGINE PER P&W SB.1413 REV B.Jun 9, 1999 · Cndair CL2151A10SDR 99ZZZX2421Flyweight · crackedPROPELLER GOVERNOR FLYWEIGHT CRACKED.Jun 1, 1999 · N59905 · Piper PA31350SDR RAIA990541Governor · failedFLT 7466 - STL - RIGHT ENGINE RPM DROPPED TO 97 PERCENT. MAINTENANCE REPLACED PROP GOVERNOR ON RIGHT ENGINE. (M)May 31, 1999 · N436AM · Bag JETSTM3201SDR AU990522Governor · out of adjust(AUS) LT ENGINE PROPELLER GOVERNOR OUT OF ADJUSTMENT. GOVERNOR WAS INTERFERING WITH THE OPERATION OF THE FCU.May 26, 1999 · Frchld SA227DCSDR 99ZZZX2271Line · brokenON TAKEOFF OUT OF CMH, RT ENGINE PROPELLER GOVERNOR LINE BROKE AT FLARE, PROPELLER FEATHERED, AND ENGINE SHUT DOWN. RETURNED TO CMH. REMOVED AND REPLACED UNFEATHERING LINE. OPS CHECKED GOOD.May 26, 1999 · N9189Q · Beech 58SDR CA990531018Coil · broken(CAN) GOVERNOR OUTPUT PRESSURE LOW. REMOVED OLD SPRING AND FOUND IT TO BE BROKEN INTO THREE PIECES.May 18, 1999 · Bbavia 8KCABSDR AU990416038Spring · cracked(AU) PROPELLER GOVERNOR WAS DISMANTLED AND THE SPRING ON THE RELIEF VALVE WAS FOUND CRACKED AT THE BOTTOM THREE COILS. A NEW PART WAS INSTALLED.Apr 8, 1999 · Piper PA32300SDR 99ZZZX2711Governor · misrepairedTHE REFERENCED MCAULEY PROPELLER GOVERNOR, PN D20271 WAS SENT TO T-BIRD FOR TROUBLESHOOTING AND/OR REPAIR DUE TO OVERSPEED OF THE ENGINE (3,400 RPM). ON TEAR DOWN, NO MAJOR DISCREPANCIES WERE NOTED EXCEPT THE PRESSURE RELIEF ADJUSTMENT DID NOT HAVE WASHERS ASApr 2, 1999SDR AU990848Csu · failed(AUS) PROPELLER GOVERNOR (CSU) FAILED. PROPELLER REMAINED IN COARSE PITCH. STRIP INVESTIGATION FOUND EXTENSIVE DAMAGE IN GEAR POCKETS AND IDLER GEAR SHAFT. IDLER GEAR DAMAGED AND BEARING CENTER AND ROLLERS MISSING. BASE FACEPLATE SCORED AND DRIVE GEAR BMar 22, 1999 · Cessna 210NSDR 99ZZZM288Prop Governor · failedFLT 7652 - IAD-PHL - DURING TAKEOFF, AIRCRAFT RETURNED FROM FLIGHT DUE TO NR 2 ENGINE ONLY PRODUCING 98.5 PERCENT. MAINTENANCE REMOVED AND REPLACED RT ENGINE PROP GOVERNOR, OPS AND LEAK CHECK GOOD. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)Mar 17, 1999 · N477UE · Bag JETSTM3201SDR CA990219015Governor · worn(CAN) PROPELLER GOVERNOR BODY WAS FOUND WORN OVERSIZE, AT THE POINT WHERE THE IDLER GEAR STUD IS PRESS FITTED TO THE GOVERNOR BODY. NO REPAIRS ARE PERMITTED, SO THE GOVERNOR WAS REPLACED.Feb 11, 1999 · Cessna 172RGSDR 99ZZZX973Chaft · brokenDURING CLIMB-OUT, LEFT PROPELLER WENT INTO UNWANTED FEATHER. AIRCRAFT MADE NORMAL SINGLE ENGINE LANDING. FOUND GOVERNOR CONTROL SHAFT BROKEN OFF WHERE THE NUT ATTACHES IT TO THE WHEEL.Feb 11, 1999 · N40599 · Piper PA23250SDR RAIA990205Governor · failedFLT 7478 - STL - RIGHT ENGINE ONLY MADE 50 PERCENT TORQUE. MAINTENANCE REPLACED RIGHT ENGINE PROP GOVERNOR. (M)Feb 5, 1999 · N436AM · Bag JETSTM3201SDR CA990119020Flyweight Disc · cracked(CAN) DURING NDT INSPECTION, A CRACK WAS FOUND IN THE FLYWEIGHT DISC, CRACK GOING FROM OUTER EDGE TO INBOARD EDGE.Jan 13, 1999 · Cessna 421BSDR AU990044Drive Disc · broken(AUS) PROPELLER GOVERNOR FLYWEIGHT DRIVE DISC BROKE IN TWO.Jan 13, 1999 · Cessna 310RSDR 99ZZZX528Governor · wornUNIT CAME IN FOR REPAIR DUE TO TORQUE FLUX AT BENCH TEST WHILE TESTING UNIT FEATHERING OPERATION. NOTICED SIGNIFICANT VIBRATION WITH A MARKED INCREASE IN THE INTERNAL LEAKAGE AS SPEED LEVER WAS MOVED TOWARDS FEATHER STOP. AT TEAR DOWN INSPECTION, FOUND EXCESJan 6, 1999SDR CA990111017Governor · malfunctioned(CAN) PROPELLER HUNG UP AT 1,580 RPM (NORMAL 1700). OVERSPEED GOVERNOR MALFUNCTIONED BEFORE PROPELLER ATTAINED OPERATIONAL RANGE. PART TC: 8,430.Dec 16, 1998 · Beech 1900DSDR RU3A98007Governor · failedLEFT PROP FAILED TO COME OUT OF FEATHER WHEN TESTE IAW FLIGHT TEST PROCEDURES FOLLOWING MAINTENANCE. EMERGENCY PROCEDURES COMPLIED WITH AND AIRCRAFT LANDED SINGLE ENGINE SAFELY. RETURNED FOR SERVICE 12-03-98 FOLLOWING PROPELLER, PROP GOVERNOR CHANGE AND RIGGDec 14, 1998 · N80 · Beech 300BEECHSDR 99ZZZX24Gear · brokenAT TEAR DOWN INSPECTION, FOUND IDLER GEAR FLOATING FREE IN GEAR POCKET. FOUND IDLER STUB BROKEN OFF AND EXTENSION DAMAGE TO GEAR POCKET. METAL FROM GEAR POCKET WAS INTRODUCED INTO ENGINE OIL SYSTEM. IT IS SUSPECTED THAT DAMAGE WAS CAUSED BY LACK OF LUBRICATDec 5, 1998SDR 99ZZZX85Shaft · crackedDURING DISASSEMBLY FOR OVERHAUL, DRIVESHAFT P/N D-20887 (NEW STYLE) WASNOTED TO BE CRACKED AT THE UPPER FLUTES (NEAR FLYWEIGHTS). THIS GOVERNOR WAS NOT SUBJECT TO A PROPELLER STRIKE OR SUDDEN STOPPAGE.Dec 4, 1998SDR RU3A98008Governor · failedPROP GOVERNOR REPLCED PRIOR TO FLIGHT TO CLEAR PREVIOUS GRIPE. LEFT PROP FAILED TO COMEOUT OF FEATHER WHEN TESTED IAW FLIGHT TEST PROCEDURES. EMERGENCY PROCEDURES COMPLIED WITH AND AIRCRAFT LANDED SINGLE ENGINE SAFELY. RETURNED TO SERVICE 12-03-98 FOLLOWINGDec 1, 1998 · N80 · Beech 300BEECHSDR CA981230031Governor · malfunctioned(CAN) AT 100 PERCENT, THE RPM SURGED UP AND DOWN. THE GOVERNOR WAS REPLACED.Nov 26, 1998 · Bell 206BSDR 98ZZZX4784Governor · failedRIGHT ENGINE OVERSPED COMING INTO (CMH). PILOT SHUT ENGINE DOWN AND FEATHERED PROPELLER. FOUND BROKEN FLYWEIGHT IN PROPELLER GOVERNOR. REMOVED AND REPLACED RIGHT ENGINE FOR OVERSPEEDING CONDITION. REMOVED AND REPLACED PROPELLER GOVERNOR.Nov 25, 1998 · N106TG · Piper PA31350SDR 98ZZZX4829Flyweight · failedFLYWEIGHT BASE SEPARATED INTO 2 PIECES CAUSING LOSS OF CONTROL OF GOVERNOR AND PROPELLER.Nov 20, 1998 · N79RG · Piper PA24260SDR 98ZZZM949Governor · failedLEFT ENGINE PROP RPM FAILS TO GO ABOVE 1400 RPM.Nov 12, 1998 · N853CA · Beech 1900DSDR 98ZZZX4649Coil · detachedSYNCROPHASE COIL CAME LOOSE GRINDING METAL TO METAL AGAINST FLYWEIGHT ASSEMBLY. UNIT RECEIVED WITHOUT DATAPLATE.Nov 10, 1998SDR 98ZZZX4247Flyweight Head · failedBRAZED ON FLYWIEGHT MOUNTING BOSS SEPARATED FROM FLYWEIGHT DRIVE DISC. SUBSEQUENT ROTATION OF FAILED PARTS CAUSED SUBSTANTIAL DAMAGE TO FLYWEIGHT CAVITY AND RENDERED THE ENTIRE UNIT UNSERVICEABLE.Oct 28, 1998SDR RAIA981017Governor · failedFLT 7080 - STL - RIGHT ENGINE LOST OIL PRESSURE IN FLIGHT. RIGHT ENGINE WAS SHUT DOWN. MAINTENANCE TIGHTENED A LOOSE 'B' NUT AT THE PROP GOVERNOR, SERVICED WITH OIL. (M)Oct 27, 1998 · N436AM · Bag JETSTM3201SDR AU981276Flyweight · cracked(AUS) PROPELLER GOVERNOR FLYWEIGHT DISC CRACKED.Oct 7, 1998SDR CA981014010Governor · malfunctioned(CAN) DURING CLIMB, NR 2 PROPELLER SPEED WOULD FLUCTUATE BETWEEN 2000-1800 RPM AND OCCASIONALLY AS LOW AS 1200 RPM. ENG POWER REDUCED TO MAINTAIN TORQUE LIMIT. CONTROL INPUT TO INCREASE PROP SPEED WAS INEFFECTIVE, BUT PROP SPEED COULD BE FURTHER REDUCED OR FOct 2, 1998 · Piper PA31TSDR 98ZZZX4053Governor · misoverhauledTHIS CONSTANT SPEED (PRIMARY PROP) GOVERNOR WAS OVERHAULED BY EMI AIRRAFT ACCESSORIES ON 7-23-98. ABOUT 1 MONTH AFTER OVERHAUL, GOVERNOR WAS INSTALLED ON A P & W PT6A-27 TURBINE ENGINE. WHEN OPERATED, FOLLOWING INSTALLATION, ENGINE EVIDENCED ERRATIC SPEED COOct 1, 1998SDR VNAA9808019Governor · defectiveWHILE TAXIING TO RUNWAY, CREW PERFORMED PROPELLER OVERSPEED TEST. TEST FAILED. AIRCRAFT RETURNED TO GATE. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND THE PROPELLER OVERSPEED GOVERNOR DEFECTIVE. REPLACED GOVERNOR IN ACCORDANCE WITH THE DORNIER MAINTENANCE Aug 22, 1998 · N422JS · Dorner DO328100SDR 98ZZZX3460Governor · malfunctionedON RUN-UP, ENGINE WOULD ONLY PRODUCE 2,200 RPM. FOUND UPPER END OF GOVERNOR CONTROL BINDING INTERNALLY. REPLACED GOVERNOR WITH OVERAULED UNIT. OPS CHECK GOOD.Aug 21, 1998 · N64JP · Piper PA31350SDR CA980916052Governor · failed(CAN) ON TAKEOFF ROLL, PROP RPM DROPPED FROM GOVERNING SPEED OF 1700 RPM TO 1500 RPM. UPON ROTATION ,THE PROP RPM GRADUALLY RETURNED AND STABILIZED AT 1700 RPM ONCE AIRBORNE AT 20 FEET. MAINTENANCE REPLACED THE PROP GOVERNOR WITH A NEW STYLE GOVERNOR P/N 821Aug 6, 1998 · Beech 1900DSDR 98ZZZM599Governor · failedA/C YAWS LEFT ON LANDING AT IDLE POWER. PROP GOVERNOR FAILURE. REPLACED PROP GOVERNOR. (M)Jul 30, 1998 · N862CA · Beech 1900DSDR CA980814010Governor · leaking(CAN) SUBMITTER REPORTS OIL LEAKING FROM PROP GOVERNOR MOUNTING GASKET. SUBMITTER STATES THE OIL LEAK IS CAUSED BY THE MOUNTING BOLTS NOT ALLOWING THE GASKET TO FIT FLAT TO THE MOUNTING PAD; THUS, ALLOWING THE GASKET TO LIFT AND THE OIL TO ESCAPE.Jul 28, 1998SDR 98ZZZX3180Coil · detachedCUSTOMER SUBMITTED GOVERNOR FOR INSPECTION DUE TO HIGH CARBON CONTENT IN OIL ANALYSIS. INSPECTION REVEALED THE SYNCHRONIZING COIL HAD COME LOOSE IN THE COVER. THE COIL CONTACTED THE FLYWEIGHTS WHICH CAUSED MATERIAL TO BE REMOVED FROM THE COIL.Jul 27, 1998SDR 98ZZZM640Governor · failedLEFT PROP RPM LOW. PROP GOVERNOR FAILURE. REPLACED PROP GOVERNOR IAW CHAP 61, OPS CHECK OK. (M)Jul 20, 1998 · N840CA · Beech 1900DSDR AU980833Housing · damaged(AUS) PROPELLER GOVERNOR BODY DAMAGED DURING PROPELLER GROUND STRIKE.Jul 15, 1998 · Cessna 210LSDR 98ZZZM641Governor · failedA/C YAWS RIGHT ON LANDING. RIGHT PROPELLER GOVERNOR FAILURE. REPLACED RIGHT PROPELLER GOVERNOR. (M)Jul 15, 1998 · N844CA · Beech 1900DSDR 98ZZZM595Governor · failedRIGHT ENGINE SURGING IN TORQUE. RIGHT PROPELLER GOVERNOR FAILURE. REPLACED RT PROPELLER GOVERNOR. (M)Jul 8, 1998 · N857CA · Beech 1900DSDR VTZA98221Governor · fluctuationPHL/IAD - FLT 6614 - AT 1540 HOURS ON 6-22-98, AIRCRAFT MADE AN UNSCHEUDLED LANDING DUE TO LT ENGINE FLUCTUATION. CREW SHUT DOWN LT ENGINE. MAINTENANCE INSPECTED AND REMOVED AND REPLACED PROPELLER GOVERNOR. OPS CHECK OK. AIRCRAFT WAS RELASED AND RETURNED TJun 22, 1998 · N472UE · Bag JETSTM3201
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