# Service difficulty reports: Continental TSIO-520-AE A list on [Continental TSIO-520-AE](https://openairdocs.org/engine/continental-tsio-520-ae.md). Newest first. General aviation reporting is voluntary. - [SDR 2017FA0000495](https://openairdocs.org/sdr/2017FA0000495.md): Shaft · failed · Jul 29, 2017 · N31DT · Exhaust Turbocharger > PILOT NOTICED SMOKE COMING FROM THE LEFT ENGINE EXHAUST DURING CRUISE FLIGHT. PERFORMED A PRECAUTIONARY LANDING. INSPECTION REVEALED THAT THE TURBOCHARGER SHAFT HAD FAILED ALLOWING OIL TO BYPASS THE TURBO SHAFT SEAL EXITING DIRECTLY INTO THE HOT EXHAUST STR - [SDR CA070511008](https://openairdocs.org/sdr/CA070511008.md): Crankcase · cracked · May 2, 2007 · Cessna T303 · Reciprocating Engine Power Section > (CAN) SUDDEN DROP OF OIL PRESSURE DURING FLIGHT TO THE BOTTOM OF THE GREEN ON OIL PRESSURE GAUGE. CONTINUED FLIGHT WITH SAFE LANDING. CRACK NOT FOUND BY NDT. BOTTOM END REBEARINGED, BUT ENGINE OIL PRESSURE WOULD DROP ONCE WARMED UP (POST REPAIR). FURTHER NDT - [SDR CA050531001](https://openairdocs.org/sdr/CA050531001.md): Main Bearing · failed · May 25, 2005 · Cessna T303 · Reciprocating Engine Power Section > (CAN) THE AIRCRAFT CAME IN WITH A REPORT OF LOW OIL PRESSURE. THE OIL FILTER WAS PULLED AND INSPECTED WITH NO FAULTS FOUND, THE OIL PRESSURE RELIEF VALVE WAS REMOVED, CLEANED, AND REINSTALLED. THE AIRCRAFT WAS RUN-UP AND FOUND TO BE OPERATING NORMALLY. AT THE - [SDR CA050516005](https://openairdocs.org/sdr/CA050516005.md): Line · misinstalled · May 13, 2005 · Cessna T303 · Engine Fuel Distribution > (CAN) AN ALTERNATOR BELT HAD FAILED ON THE PREVIOUS FLIGHT AND HAD BEEN REPLACED. THIS REQUIRED THE REMOVAL OF THE ENGINE DRIVEN FUEL PUMP PRESSURE RETURN LINE. THE LINE HAD BEEN LEFT OFF OF THE FUEL PUMP WHICH RESULTED IN FUEL LEAKING INTO THE ENGINE COMPARTM - [SDR CA041124012](https://openairdocs.org/sdr/CA041124012.md): Camshaft · sheared · Nov 22, 2004 · Cessna T303 · Reciprocating Engine Power Section > (CAN) THE ENGINE LOST POWER ON CLIMB-OUT OF CALGARY. THE PILOT FEATHERED THE PROP AND RETURNED TO CALGARY. THE ENGINE WAS GROUND RUN AND THE PROP GOVERNOR WAS FOUND TO BE INOPERATIVE. UPON REMOVAL OF THE GOVERNOR, IT WAS FOUND THAT THE DRIVE P/N 538076 WAS N - [SDR CA040518005](https://openairdocs.org/sdr/CA040518005.md): Line · restricted · May 6, 2004 · Cessna T303 · Fuel Storage > (CAN) DURING CRUISE FLIGHT, PILOT SELECTED CROSSFEED FOR RT ENGINE. SHORTLY AFTERWARDS, THE RT ENGINE LOST POWER/FUEL FLOW. SELECTOR WAS RETURNED TO NORMAL, AND ENGINE CONTINUED TO RUN NORMALLY. MAINTENANCE DISCOVERED UPON INSPECTION THAT THERE WERE 2 LONG - [SDR CA040518006](https://openairdocs.org/sdr/CA040518006.md): Needle · stuck · May 6, 2004 · Cessna T303 · Engine RPM Indicating System > (CAN) PILOT REPORTED THAT LT TACH NEEDLE WAS STUCK AT 2400 RPM. INDICATOR REPLACED AND TESTED SERVICEABLE WITH NEW GAUGE. INTERNAL PROBLEM WITH GAUGE, SENT TO REPAIR FACILITY. - [SDR ID42004F00000](https://openairdocs.org/sdr/ID42004F00000.md): Mount · cracked · Feb 20, 2004 · N303NN · Cessna T303 · Engine Mount Section > DURING AN ANNUAL INSPECTION THE IB LOWER ENGINE MOUNT LEG WAS FOUND CRACKED ON THE LT ENGINE. AIRCRAFT TT WAS 4391.8. ENGINE TIME 685. THE CRACK WAS ABOUT 1.1250 INCHES LONG. STARTING AT LOWER EDGE 3 INCHES FROM ENGINE ATTACH POINT. HAS A SMALL POROSITY VO - [SDR AUS20031151](https://openairdocs.org/sdr/AUS20031151.md): Piston · cracked · Nov 12, 2003 · Cessna T303 · Reciprocating Engine Power Section > (AUS) PISTON PN 646311 CRACKED IN BOSS. PISTON PIN PN 643846 BROKEN. - [SDR CA030523005](https://openairdocs.org/sdr/CA030523005.md): Fork · sheared · May 21, 2003 · Cessna 402B · Landing Gear Retraction/Extension System > (CAN) PILOT REPORTS GEAR WOULD NOT RETRACT ON TAKE OFF. HE ELECTED TO LEAVE DOWN FOR FLIGHT MAINTAINING PROPER SPEED.ON LANDING TRUCKS WERE REQUESTED BUT NO EMERGENCY DECLARED. LANDING WAS UNEVENTFUL. WHEN MAINTENANCE INSPECTED GEAR THEY FOUND ADJUSTING FOR - [SDR CA030521008](https://openairdocs.org/sdr/CA030521008.md): Tire · blown · May 15, 2003 · Cessna 402B · Tire > (CAN) ON LANDING THE RT MAIN WHEEL BLEW. A/C WAS STOPPED SAFELY ON THE RUNWAY AND THEN TOWED OFF ONTO THE NEAREST TAXIWAY. AFTER THE RIM WAS INSPECTED AND THE TIRE REPLACED THE A/C WAS DISPATCHED FOR THE NEXT FLIGHT. - [SDR AUS20010412](https://openairdocs.org/sdr/AUS20010412.md): Nut · wrong part · Apr 23, 2001 · Cessna T303 · Fuselage Miscellaneous Structure > (AUS) LH WING FUEL TANK LEAKING. INVESTIGATION FOUND THAT THE FUEL TANK PANEL ANCHOR NUTS WERE THE INCORRECT TYPE. THE CORRECT NUTS PNO NAS1473A3 ANCHOR NUTS ARE SEALED BUT THE FITTED ANCHOR NUTS PNO MS21047L3 ARE UNSEALED. MANUFACTURING ERROR. UNAPPROVED PART - [SDR 20010322CW006](https://openairdocs.org/sdr/20010322CW006.md): Camshaft · failed · Feb 22, 2001 · N9777C · Cessna T303 · Reciprocating Engine Power Section > ENGINE FAILED ON TAKE OFF, AIRCRAFT WAS AIRBORN. OWNER WAS ABLE TO MAKE A SAFE LANDING. FOUND ENGINE TO HAVE NO COMPRESSION. REMOVED ROCKER BOX COVERS, FOUND ONLY ONE EXHAUST VALVE WOULD MOVE ON NR1 CYLINDER. CAMSHAFT BROKE BETWEEN EXHAUST AND INTAKE ON NR - [SDR CA990310065](https://openairdocs.org/sdr/CA990310065.md): Bellcrank · cracked · Jan 11, 1999 · Cessna 402B · Landing Gear Steering System > (CAN) THE NOSE STEERING BELLCRANK WAS FOUND CRACKED/BROKEN BETWEEN ATTACH FLANGES. NO OTHER FAULTS FOUND DURING FLEET CHECK. - [SDR AU960342](https://openairdocs.org/sdr/AU960342.md): Balance Weight · missing · Feb 28, 1996 · Cessna T303 · Rudder Structure > (AUS) RUDDER MASS BALANCE WEIGHT MISSING - [SDR AU960344](https://openairdocs.org/sdr/AU960344.md): Valve Guide · worn · Feb 28, 1996 · Cessna T303 · Reciprocating Engine Cylinder Section > (AUS) NO2, NO4 AND NO6 CYLINDER EXHAUST VALVE GUIDES WORN BEYOND LIMITS ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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 = 'TSIO520AE' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/engine/continental-tsio-520-ae/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.