Air Tractor AT-401

Service difficulty reports · 19

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 aircraft_model_key = 'AT401'
  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 RZIG2014092400553Cylinder · fracturedAFTER TAKEOFF NR 2 CYLINDER EXHAUST VALVE STUCK IN OPEN POSITION LETTING PISTON CONTACT VALVE, BREAKING EXHAUST ROCKER HOUSING FROM CYLINDER. ACFT LOST POWER FORCING LANDING. ACFT CAUGHT FIRE.Aug 24, 2014 · N91968 · Airtrc AT401 · Reciprocating Engine Cylinder SectionSDR CA140107008Bearing · worn(CAN) WHILE CARRYING OUT VALVE CLEARANCE INSPECTION, THE EXHAUST VALVE ROCKER ARM ON THE NR 7 CYLINDER WAS FOUND WITH EXCESSIVE PLAY BOTH RADIALLY AND AXIALLY. UPON REMOVAL BEARING BALLS FELL OUT OF THE BEARING CAGE.Jan 7, 2014 · Airtrc AT401 · Reciprocating Engine Cylinder SectionSDR 2013FA0000205Blades · brokenREPORTED THAT AFTER LANDING, PROPELLER SLOWED DOWN QUICKER THAN NORMAL. DURING SHUTDOWN THE PROPELLER DID NOT FEATHER AND CAME TO LOW SPEED STOP. INSPECTION OF THE ENGINES REVEALED GGT ROTOR BLADE SEPARATION. SUBJECT ENGINE WAS REMOVED FROM SERVICE AND SENApr 1, 2013 · Airtrc AT401 · Turbine SectionSDR CA120828003Turbocharger · seized(CAN) PILOT REPORTED LOSS OF MAINIFOLD PRESSURE ON TAKEOFF MAINTENANCE FOUND THE TURBO CHARGER SEIZED.Aug 27, 2012 · Airtrc AT401 · Exhaust TurbochargerSDR CA120816002Cylinder · failed(CAN) INFLIGHT ENGINE FAILURE DUE INTERNAL CAM SHAFT/VALVE TRAIN FAILURE.Aug 12, 2012 · Airtrc AT401 · Reciprocating Engine Cylinder SectionSDR CA130306008Blade · damaged(CAN) PILOT REDUCED POWER TO IDLE AT TOUCHDOWN, HE NOTED PROP RPM DECAY BELOW NORMAL. ENGINE LOW OIL PRESSURE LIGHT ILLUMINATED, PROP THEN STOPPED TURNING BUT DID NOT FEATHER. PILOT CARRIED OUT SHUTDOWN PROCEDURE. ACFT WAS TOWED FROM RUNWAY. INITIAL INSPECJun 6, 2012 · Airtrc AT401 · Turbine SectionSDR CA120601005Pump · failed(CAN) FUEL PUMP WAS FAILED OUT OF THE BOX. THE PUMP CREATED ZERO FUEL PRESSURE.May 30, 2012 · Airtrc AT401 · Engine Fuel PumpSDR 2011FA0000637Exhaust Valve · stuckACFT DEVELOPED HEAVY VIBRATION DUE TO A STUCK EXHAUST VALVE IN THE CYLINDER ASSY.Jul 29, 2011 · N45332 · Airtrc AT401 · Reciprocating Engine Cylinder SectionSDR 2010FA0000713Angle · crackedTHE CRACK DEVELOPED FROM THE TOP DOWN IN THE CORNER OF THE ANGLE FOR APPROX 1 INCH. IT HAS FLOWN FOR 91 HRS SINCE THE LAST INSP AT WHICH TIME NO CRACK WAS APPARENT. THE ACFT FLIES OUT OF A SMOOTH PAVED RUNWAY AND IS USED MOSTLY FRO GRANULAR FERTILIZER APPLICJun 17, 2010 · N10063 · Airtrc AT401 · Fuselage Miscellaneous StructureSDR SWP2009F00000Connecting Rod · brokenON JUNE 12, 2009 NR 3 CONNECTING ROD BROKE CAUSING NR 3 CYL TO SEPARATE COMPLETELY FROM ENGINE. ACFT LANDED IN AN ALFALFA FIELD. ACFT DID NOT SUSTAIN ANY DAMAGE. (K)Jun 19, 2009 · N1548L · Airtrc AT401 · Reciprocating Engine Power SectionSDR CA071016016Engine · power loss(CAN) DURING SPRAYING OPERATIONS THE ENGINE EMITTED A LOUD NOISE AND LOST POWER, RESULTING IN A FORCED LANDING.Aug 20, 2007 · Airtrc AT401 · Engine (Turbine/Turboprop)SDR CA030404007Strap · broken(CAN) UPON PERFORMING THE SCHEDULED 200 HOUR INSTALLATION INSPECTION, THE HOSE STRAP WAS FOUND TO BE BROKEN NEAR THE MOUNTING BOLT HOLE. THE BROKEN HOSE STRAP WAS REPLACED. INVESTIGATION INTO THE CAUSE, AND FORMULATION OF CORRECTIVE ACTION CONTINUES. MORE DETAMar 25, 2003 · Airtrc AT401 · Fuselage Miscellaneous StructureSDR CA030404006Harness · damaged(CAN) UPON PERFORMING THE SCHEDULED 200 HOUR ENGINE INSPECTION, THE IGNITION HARNESS ASSEMBLY WAS FOUND TOBE DAMAGED DUE TO EXCESSIVE HEAT. THE DAMAGE WAS LOCATED AT THE B5 SPARK PLUG LEAD. DIRECT EXPOSURE TO EXHAUST GASES WAS RULED OUT AS THE CAUSE OF THE DAMMar 25, 2003 · Airtrc AT401 · Ignition Harness (Distribution)SDR 2002FA0001376Nut · crackedA NEWLY OVERHAULED "0" TIME PROPELLER WAS INSTALLED 05/31/01. DURING MAINTENANCE JULY 5, 2002 THE PROPELLER HAD TO BE REMOVED TO FACILITATE OTHER WORK. DURING THE REMOVAL IT WAS DISCOVERED THAT THE PROPELLER RETAINING NUT WAS CRACKED THE FULL HEIGHT OF THE NDec 6, 2002 · N1008Q · Airtrc AT401 · Propeller Hub SectionSDR 2002FA0001375Nut · crackedA NEWLY OVERHAULED "0" TIME PROPELLER WAS INSTALLED 05/31/01. DURING MAINTENANCE JULY 5, 2002 THE PROPELLER HAD TO BE REMOVED TO FACILITATE OTHER WORK. DURING THE REMOVAL IT WAS DISCOVERED THAT THE PROPELLER RETAINING NUT WAS CRACKED THE FULL HEIGHT OF THE NDec 6, 2002 · N1008Q · Airtrc AT401 · Propeller Hub SectionSDR CA001218020Attach Angle · cracked(CAN) CRACKS FOUND IN 90 DEGREES RADIUS OF UPPER ATTACH ANGLES. LOWER ATTACH ANGLES CRACKS FOUND ON FUSELAGE ATTACH POINT.Oct 15, 2000 · Airtrc AT401 · Wing, Fuselage Attach FittingsSDR 20000809SH002Rod · fracturedDURING AGRICULTURAL SPRAYING OPERATION, NR 7 ROD ASSY FAILED FORCING AIRCRAFT TO EMERGENCY LANDING AND SUBSEQUENT SUBSTANTIAL AIRCRAFT DAMAGE. REF: ACCIDENT REPORT NR LAX00LA271. (X)Jul 13, 2000 · N4508Y · Airtrc AT401 · Reciprocating Engine Power SectionSDR 20000613SH003Attach Fitting · corrodedINTERNAL CORROSION CAUSED FAILURE OF HORIZONTAL STABILIZER STRUT AT LOWER ATTACH FITTING. SUBMITTER RECOMMENDED LOWER ATTACH POINT DESIGNED SIMILAR TO UPPER FITTING AND LINSEED OIL APPLIED TO INSIDE OF STRUT. (X)May 15, 2000 · N4545W · Airtrc AT401 · Horizontal Stabilizer StructureSDR AU960373Angle · cracked(AUS) WING ATTACHMENT ANGLES (2OFF) CRACKED ON INSIDE FACE AND CORRODED AROUND MOUNT HOLES AND LOWER HOLESMar 12, 1996 · Airtrc AT401 · Fuselage, Wing Attach Fittings
Back to Air Tractor AT-401