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.
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
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
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.SDR 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. REMOVESDR CA001129010Cylinder · cracked(CAN) THE CYLINDER ASSEMBLY CRACKED AT THE CYLINDER HEAD FLANGE. THE CRACK EXTENDED HALF WAY THROUGH THE CIRCUMFERENCE OF THE CYLINDER. (X)SDR CA001129004Cylinder · cracked(CAN) THE CYLINDER ASSEMBLY CRACKED AT THE CYLINDER HEAD FLANGE. THE CRACK EXTENDED HALF WAY THROUGH THE CIRCUMFERENCE OF THE CYLINDER. (X)SDR 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 EXHSDR 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 RESDR CA010223013Cylinder · broken(CAN) OPERATOR EXPERIENCED HIGH ON CONSUMPTION. NR 5 CYLINDER REMOVED AND FOUND BROKEN ON CONTROL RING. CYLINDER/PISTON AND RING ASSEMBLY REPLACED.SDR PNSA990203Indicator · inopRT CHT INDICATOR WAS OBSERVED INOPERATIVE DURING TAXI TO RUNWAY. RETURNED TO BLOCKS. REPLACED CHT INDICATOR. OPERATIONAL CHECK OK.SDR 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 CONTACSDR HEEA060040Indicator · failedT4 INDICATOR WILL NOT INDICATE.SDR AU981423Sensor · broken(AUS) ENGINE CYLINDER HEAD TEMPERATURE PROBE BROKEN OFF SENDING UNIT.SDR AU981376Probe · misinstalled(AUS) INCORRECT CYLINDER HEAD TEMPERATURE SYSTEM FITTED. UNAPPROVED PART.
Back to JASC 7721