Allison 250-C20R/2
Service difficulty reports · 66
Newest first. General aviation reporting is voluntary.
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 engine_model_key = '250C20R2' 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 engine_model_key = '250C20R2' 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 98ZZZX2241Rod · crackedINSPECTION FOUND GAS PRODUCER INTERCONNECT TUBE WITH CRACKS, 2 EACH, 180 DEGREES APART AT SHORT END.SDR 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.SDR CA970922029Compressor · failed(CAN) THE AIRCRAFT WAS AT 400 FEET AGL, WHEN PILOT HEARD A LOUD BANG AND THE A/C YAWED LEFT AND AUTOROTATED TO THE GROUND. AIRFRAME SUFFERED MAJOR DAMAGE. ENGINE AND TRANSMISSION REMOVED FOR INVESTIGATION.SDR CA970722044Turbine · failed(CAN) INSTALLED OVERHAULED TURBINE ON ENGINE GEARBOX AND WHEN A START ATTEMPT WAS MADE, THERE WAS NO POWER OUTPUT (NO MAIN ROTOR). THE ENGINE (N1) WAS OPERATING NORMALLY BUT NO POWER OUTPUT (N2).SDR CA970507021Rotor Vane · failed(CAN) TWO MINUTES INTO CLIMB-OUT, A BANG TYPICAL OF A COMPRESSOR STALL WAS HEARD COMING FROM THE ENGINE. YAW TO RIGHT AND ENG AUTO RE-IGNITION ACTIVATED. INSTRUMENTATION INDICATE ENGINE OPERATION NORMAL. FLIGHT ABORTED. PART TC: 3,461.SDR CA960916008Bearing · worn(CAN) NOISY COMPRESSOR ON START-UP. BEARING NOISE ON THE INLET OF COMPRESSOR.SDR CA970311023Bearing · making metal(CAN) NR 2 BEARING MAKING METAL. BEARING INSPECTED AND FOUND TO BE NOISY WITH BALL SHOWING EVIDENCE OF GALLING. PART TC: 3,325.SDR AU960959Pipe · loose(AUS) ENGINE POWER TURBINE GOVERNOR TO FUEL CONTROL UNIT PIPE (PC LINE)LOOSE AT FCU END - `B' NUT HOLDING BY APPROXIMATELY HALF A THREADSDR CA960826041Drive Seal · leaking(CAN) INPUT DRIVE SEAL LEAKING BADLY AFTER ONLY 0 3 HOURS SINCE OVERHAULSDR CA960619033Nozzle · cracked(CAN) CRACKS FOUND IN THE BEND RADIUS OF THE SECOND STAGE NOZZLE DIAPHRAGM. NOZZLES SENT TO MANUFACTURER. PART TC: 4,214.SDR CA960619034Nozzle · cracked(CAN) CRACKS FOUND IN THE BEND RADIUS OF THE SECOND STAGE NOZZLE DIAPHRAGM. NOZZLES SENT TO MANUFACTURER. PART TC: 3,694.SDR CA960619035Nozzle · cracked(CAN) CRACKS FOUND IN THE BEND RADIUS OF THE SECOND STAGE NOZZLE DIAPHRAGM. NOZZLES SENT TO MANUFACTURER. PART TC: 3,368.SDR CA960619036Nozzle · cracked(CAN) CRACKS FOUND IN THE BEND RADIUS OF THE SECOND STAGE NOZZLE DIAPHRAGM. NOZZLES SENT TO MANUFACTURER. PART TC: 3,030.SDR CA960619037Nozzle · cracked(CAN) CRACKS FOUND IN THE BEND RADIUS OF THE SECOND STAGE NOZZLE DIAPHRAGM. NOZZLES SENT TO MANUFACTURER. TWO INCH LONG CRACK WITH CRAZE CRACKS OVER 50 PERCENT OF CIRCUMFERENCE. PART TC: 3,527.SDR CA960729014Actuator · failure(CAN) AFTER STARTING THE ENGINE, THE PILOT WAS UNABLE TO RAISE THE ROTOR RPM ABOVE 90 PERCENT NR. THERE WAS NO BEEP TRIM RANGE AVAILABLE AND THE ENGINE WAS SHUT DOWN. ON INSPECTION, FOUND THE INTERNAL STOP OF THE LINEAR ACTUATOR HAD FAILED AND THE SHAFT WAS SDR CA960320014Engine · diaphragm crack(CAN)PILOT ENTERED AUTOROTATION AFTER ENGINE LOST POWER. ENGINE WAS RUNNING AFTER LANDING BUT WOULD NOT PRODUCE POWER. SUBSEQUENT INVESTIGATION REVEALED 2ND STAGE NOZZLE DIAPHRAGM CRACKED.
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