JASC 7721

Service difficulty reports · 62

Reports filed under 7721 · Cylinder Head Temperature (CHT) 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 = '7721'
  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 CA010110022Cylinder · failed(CAN) ON INSPECTION FOUND 3 SHEARED STUDS ON TOP 4 SHEARED STUDS ON THE BOTTOM OF NR 1 CYLINDER/CYLINDER WAS COCKED TO THE REAR AT A SLANT AT 10 DEGREES.Dec 18, 2000 · Cessna 402CSDR CA001201022Rocker · broken(CAN) TIP OF ROCKER ARM THAT PUSH ROD PUSHES ON ARM TO DEPRESS EXHAUST VALVE BROKE OFF. THIS TYPE OF BREAK IS THE FIRST ONE I HAVE SEEN IN THE 31 YEARS THAT I HAVE WORKED WITH TYPE OF ENGINE. THE CYLINDER WAS NEW WITH ONLY A TOTAL OF 593 HOURS ON UNIT. REMOVENov 20, 2000 · Dhav DHC3SDR CA001129010Cylinder · cracked(CAN) THE CYLINDER ASSEMBLY CRACKED AT THE CYLINDER HEAD FLANGE. THE CRACK EXTENDED HALF WAY THROUGH THE CIRCUMFERENCE OF THE CYLINDER. (X)Nov 1, 2000 · Beech C23SDR CA001129004Cylinder · cracked(CAN) THE CYLINDER ASSEMBLY CRACKED AT THE CYLINDER HEAD FLANGE. THE CRACK EXTENDED HALF WAY THROUGH THE CIRCUMFERENCE OF THE CYLINDER. (X)Nov 1, 2000 · Beech C23SDR CA000719012Cylinder · cracked(CAN) DURING CLIMB OUT , THE RIGHT ENGINE STARTED TO RUN ROUGH. THE PILOT FEATHERED THE ENGINE AND RETURNED TO YELLOWKNIFE .MAINTENANCE FOUND 2 CRACKS AT THE EXHAUST PORT OF NR 7 CYLINDER OF THE RT ENGINE. THESE HAD STARTED TO SPREAD AND LIKELY CAUSED THE EXHJul 8, 2000 · Cvac PBY5ASDR 99ZZZX4675Resistor · failedWHEN CAPTAIN REPORTED PULLING POWER, LT ENGINE STARTED TO NTS. THE CAPTAIN ADVANCED LT POWER LEVER WITH NO RESPONSE FROM THE ENGINE. AT THAT POINT, THE CAPTAIN PER THE AFM, STARTED SINGLE ENGINE LANDING PROCEDURES. THE POSSIBLE CAUSE OF THE LT ENGINE NOT REDec 28, 1999 · N821BC · Swrngn SA227ACSDR CA010223013Cylinder · broken(CAN) OPERATOR EXPERIENCED HIGH ON CONSUMPTION. NR 5 CYLINDER REMOVED AND FOUND BROKEN ON CONTROL RING. CYLINDER/PISTON AND RING ASSEMBLY REPLACED.Oct 5, 1999 · Piper PA46350PSDR PNSA990203Indicator · inopRT CHT INDICATOR WAS OBSERVED INOPERATIVE DURING TAXI TO RUNWAY. RETURNED TO BLOCKS. REPLACED CHT INDICATOR. OPERATIONAL CHECK OK.Feb 23, 1999 · N3588Z · Piper PA31350SDR CA990209025Thermocouple · misinstalled(CAN) AIRCRAFT WAS RECENTLY PURCHASED WITH HIGH TIME ENGINES. AFTER 102.3 HOURS OF OPERATION THERE HAVE BEEN MANY MISCELLANEOUS EGT PROBLEMS. INVESTIGATION FOUND THE EGT (THERMOCOUPLE) PROBES INSTALLED IN WHAT APPEARS TO BE RANDOM POSITIONS. PIPER WAS CONTACJan 28, 1999 · Piper PA23250SDR HEEA060040Indicator · failedT4 INDICATOR WILL NOT INDICATE.Jan 15, 1999 · N40466 · Snias AS350B2SDR AU981423Sensor · broken(AUS) ENGINE CYLINDER HEAD TEMPERATURE PROBE BROKEN OFF SENDING UNIT.Oct 27, 1998 · Cessna 210NSDR AU981376Probe · misinstalled(AUS) INCORRECT CYLINDER HEAD TEMPERATURE SYSTEM FITTED. UNAPPROVED PART.Oct 19, 1998 · Cessna 182P
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