JASC 7323

Service difficulty reports · 544

Reports filed under 7323 · Turbine 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 = '7323'
  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 CA991007033Governor · failed(CAN) BLUE GREASE VISIBLE ON OUTER TURBINE GOVERNOR HOUSING. GOVERNOR WAS SLUGGISH EVEN WITH THE UNIT RIGGED ALL TO THE MAXIMUM. GOVERNOR REPLACED.Mar 1, 1999 · Hughes 369DSDR 99ZZZX1353Governor · malfunctionedSURGING. REMOVED AND REPLACED. SENT FOR EVALUATION/REPAIR.Feb 19, 1999 · N5027P · Hughes 369DSDR HEEA060655Governor · malfunctionedIN CRUISE FLIGHT, PILOT EXPERIENCED TORQUE OSCILLATIONS AND YAW WITH CORRESPONDING TORQUE, TOT, N1 AND N2 INDICATIONS. REMOVED GOVERNOR AND FOUND SHAFT HARD TO TURN. A LARGE AMOUNT OF METAL PARTICLES WERE FOUND IN THE MOUNTING FLANGE AREA. FOUND DRIVE BEARINFeb 16, 1999 · N2761N · Bell 206L1SDR 99ZZZX2358Bearing · failedPILOT FOUND GOVERNOR SWAGING ABOVE LIMITS FOR SAFE FLIGHT. ENIGNE SURGING 20 PSI TORQUE AND 5 PERCENT N2. UPON REMOVAL OF GOVERNOR, FOUND DRIVE SHAFT LOCKED-UP. COMPONENT P/N ALAA123065123.Feb 1, 1999 · N526FB · Hughes 500NSDR 99ZZZX413Spool Bushing · failedGOVERNOR REMOVED FOR TORQUE FLUCTUATION. UPON INSPECTION IN SHOP, FOUND BALL BEARING THAT FELL OUT OF GOVERNOR COVER WHILE STILL ASSEMBLED. SPLIT GOVERNOR BODY IN SHOP AND DISCOVERED SPOOL BUSHING HAD FAILED.Jan 12, 1999 · N376AL · Skrsky S76ASDR 98ZZZX4426Governor · failedDURING DEPARTURE, EXPERIENCED NR 2 ENGINE HIGH SIDE FAILURE. RETURNED TO MAINTENANCE. REPLACED NR 2 GOVERNOR.Oct 27, 1998 · N1547D · Skrsky S76ASDR 98ZZZX4752Governor · malfunctionedON 10-27-98 DURING DEPARTURE FROM LAFAYETTE BASE, EXPERIENCED NR 2 ENGINE HIGH SIDE FAILURE. RETURNED FOR MAINTENANCE. REPLACED NR 2 GOVERNOR.Oct 21, 1998 · N1547D · Skrsky S76ASDR AU981433Governor · faulty(AUS) LEFT ENGINE OVERSPEED GOVERNOR FAULTY.Oct 19, 1998SDR 99ZZZX1285Governor · malfunctionedENGINE MGT, NG, AND TORQUE SURGES 10 TO 20 PERCENT. REMOVED AND REPLACED GOVERNOR WHICH CURED PROBLEM.Oct 6, 1998 · N117MK · Bolkms BK117B2SDR 98ZZZX4739Governor · failedWHILE PERFORMING FIRE FIGHTING FOR DNR, PILOT FILLED BUCKET AND STARTED CLIMB, ENGINE LOST POWER. PILOT DUMPED WATER WHICH BROUGHT ROTOR POWER-UP. PILOT WAS ABLE TO GET HELICOPTER TO SHORE. HELICOPTER AUTOROTATED AND STRUCK METAL TREE STAKE DAMAGING TAIL ROSep 12, 1998 · N52BH · Bell 206BSDR 98ZZZX3643Governor · lack of lubeGOV HAS BLUE GREASE WASHED OUT. SENT FOR REPAIR.Sep 9, 1998 · N1097J · Hughes 369DSDR CA980908010Governor · failed(CAN) ROTOR RPM DROPS AND OVERSPEEDS WITH COLLECTIVE LEVER MOVEMENT. ADJUSTMENT OF DROOP COMPENSATOR TO MAXIMUM DID NOT SOLVE THE PROBLEM. GOVERNOR WAS REPLACED AND PROBLEM SOLVED.Aug 24, 1998 · Bell 205A1SDR HEEA0015521Governor · malfunctionedENGINE GOVERNOR INDUCING TORQUE SPLITS.Aug 13, 1998 · N1202T · Bell 412SDR CA980818012Governor · malfunctioned(CAN) THE GOVERNOR WAS OPERATING OK, PRIOR TO SHUTDOWN WITH THE N2 RANGE FROM 97 PERCENT TO 100 PERCENT RPM. SHORTLY AFTER ON RESTART, THE N2 OPERATING RANGE HAD GONE TO 100 PERCENT TO 103 PERCENT RPM AND THE PILOT COULD NOT BEEP THE ENGINE BELOW 102 PERCENT.Aug 7, 1998 · Bell 206L1SDR 98ZZZX2808O-Ring · failedDROP OF APPROXIMATELY 800 RPM ON TAKEOFF. PHASING COIL O-RING ENTANGLED WITH FLYWEIGHT ASSEMBLY.Jul 21, 1998 · N73TT · Beech 58SDR CA980818015Governor · failed(CAN) ROTOR RPM VARIES BETWEEN 95 TO 105 PERCENT. EXCESSIVE, SLOW OR NO RECOVERY UNDER DIFFERENT FLIGHT CONDITIONS.Jul 3, 1998 · Bell 206BSDR 98ZZZX2592Governor · failedSLUGGISH TO RETURN TO POWER. GOV REMOVED FROM AIRCRAFT AND SENT FOR REPAIR EVALUATION.Jun 19, 1998 · N90322 · Bell 206BSDR 98ZZZX2259Governor · failedDURING ENGINE CHANGE, OVERSPEED GOVERNOR WAS TRANSFERRED FROM ENGINE DUE OVERHAUL TO LOANER ENGINE. AFTER INSTALL ON LOANER ENGINE, PR0P SHAFT WOULD NOT ROTATE. UPON REMOVAL OF OVERSPEED GOVERNOR, SMALL BALL BEARING CAME OUT OF GOVERNOR OIL PORT. FLUSHED RGJun 5, 1998 · N9762B · Cessna 208BSDR 98ZZZX1936Governor · failedROTOR SPEED NR DROOPING TO 95 PERCENT AND WOULD NOT RECOVER. GOVERNOR WAS REPLACED WITH SERVICEABLE UNIT AND DROOP DID NOT RECUR.May 1, 1998 · N21460 · Bell 206BSDR 98ZZZX1619Governor · malfunctionedPT GOVERNOR WAS SURGING BELOW LIMITS. PT GOVERNOR REPLACED, OPS CHECK OK. AIRCRAFT RETURNED TO SERVICE. CNTRL NR 98-4-5.Apr 9, 1998 · N1097J · Hughes 369DSDR 98ZZZX2793Drive Splice · disconnectedTHE ENGINE RPM BECAME UNSABLE. REMOVED GOVERNOR, FOUND RETAINING RING, RING RETAINER, AND SHIM MISSING FROM SHAFT.Apr 6, 1998 · N842LA · Hughes 369ESDR HEEA0013455Governor · mis repairedRECEIVED FROM STOCK. WHEN WOOD BLOCK REMOVED FOUND CIRCLIP LAGGING IN BLOCK. NEVER INSTALLED ON AIRCRAFT. INSPECTED GOVERNOR WHEN RECEIVED IN SHOP. FOUND DRIVE COUPLING ON DRIVE SHAFT TO STILL HAVE 934 BONDING AND IN GOOD SHAPE. INSPECTED SUSPECTED CLIP REMar 19, 1998SDR 99ZZZX746Governor · leakingFUEL LEAKING FROM GOVERNOR DRAIN PORT BEYOND LIMITS. SENT FOR REPAIR. S/N 8ACK585. CONTROL NR 98-3-7.Mar 18, 1998 · N90322 · Bell 206BSDR CA980602038Governor · worn(CAN) TORQUE SPLITS OCCURRING DURING CRUISE. WORN N2 LINKAGE REPLACED AND TORQUE SPLITS STILL OCCURRED. POWER TURBINE GOVERNOR REPLACED.Mar 12, 1998SDR 98ZZZX1455Governor · failedPILOT EXPERIENCED LOW SIDE GOVERNOR FAILURE SHORTLY AFTER TAKEOFF. RETURNED TO BASE AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NR 2 ENGINE POWER TURBINE GOVENROR. REF: P&W IPC, CHAPTER 72-10-03, FIG 1, ITEM NR 10.Mar 7, 1998 · N108X · Bell 412SDR 98ZZZX805Governor · malfunctionedDURING TAKEOFF, ROTOR RPM DECAYED TO 97 PERCENT. WOULD NOT RECOVER. PILOT LANDED WITHOUT INCIDENT. ALL TROUBLESHOOTING REVEALED NO DISCREPANCIES, COULD NOT DUPLICATE PROBLEM. MAINTENANCE CHANGED GOVERNOR FOR PRECAUTION. REF: ALLSION C-30 IPC, CHAPTER 73-Feb 13, 1998 · N8593X · Bell 206L3SDR 98ZZZX1026Flyweight Bush · wornPILOT EXPERIENCED DROOP OF N2 RPM (ROTOR) TO 100 PERCENT. BEEFED UP TO 102 PERCENT, THEN N2 RPM WENT UP TO 104 PERCENT. ERRATIC OPERATION NOTICED. RETURNED GOVERNOR TO REPAIR STATION FOR REPAIR AND REINSTALLED. PROBLEM CORRECTED.Feb 10, 1998 · N50AP · Hughes 369DSDR CA980122001Governor · failed(CAN) IN HOVER, N2 RPM CREEPING DOWN AND UNABLE TO REGAIN WITH BEEP SWITCH. GOVERNOR ADJUSTED BY TECHNICIAN, BUT SAME PROBLEM PERSISTED. GOVERNOR CHANGED.Jan 18, 1998 · Hughes 369DSDR 98ZZZX500Governor · malfunctionGOVERNOR DROOPS EXCESSIVELY WHEN POWER IS APPLIED AND IS SLOW TO RESPOND.Jan 16, 1998 · N1097J · Hughes 369DSDR 98ZZZX317Governor · failedPOWER TURBINE GOVERNOR FLYWEIGHTS AND BUSHING FAILED CAUSING GOVERNOR TO DUMP PY AIR TO FUEL CONTROL UNIT ALLOWING POWER TO DROP TO 50 PERCENT. ENGINE WAS FEATHERED AND RETURNED TO HOME BASE WHERE GOVERNOR WAS REPLACED WITH OVERHAULED UNIT AND CHECKED OPERATIJan 9, 1998 · N566CA · Beech 65A90SDR 98ZZZX323Governor · failedGOVERNOR SLOW TO RESPOND TO POWER CHANGES (HIGH AND LOW SIDE).Jan 6, 1998 · N9907K · Bell 206BSDR CA980317086Governor · malfunctioned(CAN) GOVERNOR UNABLE TO MAINTAIN HIGHER POWER DEMAND WITHOUT DROOPING.Jan 4, 1998 · Hughes 369DSDR HEEA0012401Governor · failedNR 1 ENGINE BEEP RANGE WENT HIGH AND TORQUE SPLIT. REPLACED WITH SERVICEABLE GOVERNOR.Dec 31, 1997 · N22347 · Bell 412SDR CA980406020Governor · malfunctioned(CAN) WHEN MAKING BEEP ADJUSTMENTS TO GOVERNOR, ESPECIALLY AT HIGHER POWER DEMANDS, GOVENOR WILL HUNT FOR TWO OSCILLATIONS AND THEN OVERSPEED. BLUE GREASE FOUND AT SEAL DRAIN.Dec 23, 1997 · Hughes 369DSDR 98ZZZX297Governor · failedFLUCTUATING TORQUE SETTING. FOUND GOVERNOR DRIVE BROKEN. REPLACED GOVERNOR.Dec 7, 1997 · N5366Y · Bolkms BO105SSDR 97ZZZX5217Governor · malfunctionedGOVERNOR UNITS HAD A MANDATORY SB REQUIRED BY JUNE, 1997. STARTED COMPLYING BY DECEMBER, 1996. AFTER INSTALLATION OF FIRST MODEL UNIT, STARTED EXPERIENCING RPM ADJUSTMENT PROBLEMS. AFTER 20 HOURS, BUT NO MORE THAN 200 HOURS, UNITS WOULD FAIL TO HOLD RPM SETTDec 3, 1997 · N816CE · Snias AS350DSDR 98ZZZX330Governor · failedGOVERNOR REMOVED FOR TORQUE SPIKES WITH POWER CHANGES. COMPONENT OF ENGINE 23004545, S/N CAE890566. REMOVED AND REPLACED.Dec 1, 1997 · N206MH · Bell 206LSDR 98ZZZX2099Governor · malfunctionedDURING FLIGHT, NR 2 ENGINE BEGAN OSCILLATING. PILOT RETURNED TO BASE AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED ENGINE N2 GOVERNOR DUE TO STIFF CONTROL SHAFT. REF: ALLISON C-20 IPC, CHAPTER 73-20-00, FIG 2, ITEM 81.Nov 2, 1997 · N4573B · Bolkms BO105SSDR CA980126004Governor · failed(CAN) ENGINE EXPERIENCED A DROP IN ATTAINABLE N2 RPM. ADJUSTMENT ATTEMPTED, BUT HITTING MAX STOP AFTER ADJUSTMENT.Nov 1, 1997 · Hughes 369DSDR CA971113053Governor · failed(CAN) ROTOR RPM DROOPS TO 98 PERCENT WITH NO RECOVERY BY GOVERNOR. UNABLE TO ADJUST TO MAINTAIN PROPER RPM. TWO PREVIOUS REMOVALS FOR SAME REASON. PART TC: 2.Oct 30, 1997 · Bell 206BSDR 97ZZZX4738Governor · failedDURING FLIGHT, GOVERNOR LOCKED-UP INTERNALLY CAUSING ENGINE TO SPOOL DOWN TO GROUND IDLE. THIS CAUSED ACFT TO MAKE A PRECAUTIONARY LANDING AT NIGHT ON 10-20-97.Oct 20, 1997 · N522FB · Hughes 500NSDR CA971113032Governor · failed(CAN) GOVERNOR ALLOWS RPM TO DROOP 3 PERCENT WITH NO RECOVERY AND OVERSPEEDS 2 TO 3 PERCENT. ERRATIC OPERATION, OCCASIONAL SURGING, RIGGING COULD NOT ADJUST.Oct 3, 1997 · Hughes 369DSDR 97ZZZX4461Governor · failedINTERNAL FAILURE. BEARING FAILED ON FOLLOWER GEAR IN THE PRESSURE PUMP ENGINE SHUT DOWN ON TAXIING OUT FOR TAKEOFF.Oct 3, 1997 · N727DP · Swrngn SA226ATSDR 97ZZZX4774Piston · leakWHEN PARTS ARE MANUFACTURED, THEY ARE PAINTED WITH ZINC CHROMATE. SUBMITTER HAS FOUND ON NEARLY EVERY GOVERNOR DISASSEMBLED FRAGMENTS AND LARGE AMOUNTS OF PAINT LODGED UNDER O-RINGS WHERE THEY CONTACT SEALING AREAS. THEY CAUSE INTERNAL LEAKS AND EXTERNAL LEASep 23, 1997SDR 97ZZZX4977Governor · failedUNABLE TO ADJUST DROOP COMP. REPLACED GOVERNOR.Sep 22, 1997 · N8776 · Bolkms BO105SSDR CA980126003Governor · failed(CAN) IN-FLIGHT DROP IN N2 RPM. TRIM DID NOT BRING RPM UP. BEEP RANGE SHIFTED DOWN. UNABLE TO ADJUST WITHIN RANGE.Sep 18, 1997 · Hughes 369DSDR 97ZZZX4976Governor · malfunctionedGOVERNOR HAS NO MORE ADJUSTMENT FOR COMPENSATION. REPLACED GOVERNOR.Sep 11, 1997 · N5366Y · Bolkms BO105SSDR CA980126002Governor · failed(CAN) ENGINE UNABLE TO HOLD STEADY N2 RPM, CAUSING ACFT TO YAW DURING FLUCTUATIONS.Aug 26, 1997 · Hughes 369DSDR 97ZZZX3425Spool Bearing · wrong partPER AD 82-24-05, INSPECTION REQUIRED TO DETERMINE IF SPOOL BEARING IS CORRECT TYPE. PREVIOUS REPAIR STATION INSPECTED IT AND STATED ON REPAIR TAG THAT SPOOL BEARING WAS CORRECT, WHEN, IN FACT, IT WAS NOT.Jul 3, 1997SDR CA970731020Governor · unserviceable(CAN) GOVERNOR INSTALLED FOR TEST RUN AND HOVER TEST. IN-FLIGHT HOVER AT LOWER POWER SETTINGS THE RPM WOULD FLUCTUATE 5 PERCENT.Jun 25, 1997 · Hughes 369D
Back to JASC 7323