Continental IO-520 series

Service difficulty reports · 446

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 = 'IO520'
  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 BSY2001F00011Throttle Cable · broken(TFB) M.I.R. RIGHT ENGINE THROTTLE STUCK AT FULL THROTTLE. REMOVED AND REPLACED BROKEN THROTTLE CABLE.Sep 9, 2001 · N6573K · Beech 58 · Power LeverSDR FPI2001F00001Pump · faultyENGINE HAD LOW POWER PROBLEM. ENGINE MAX FUEL PRESSURE WAS 26 PSI AT 2700 RPM. SPECS 28 TO 31 PSI. THE HIGH PRESSURE ADJUSTMENT WAS BOTTOMED OUT. THE FUEL PUMP WAS REMOVED AND REPLACED.Sep 4, 2001 · N5229A · Cessna 210N · Engine Fuel PumpSDR 2001FA0000399Bracket · mismanufacturedDURING ANNUAL INSPECTION, THE ABSENCE OF THE SAFETY COTTER PIN (-23) WAS NOTED (PORT SIDE) (AILERON PULLEY BRACKET) CONSTRUCTION OF THE BRACKET WAS SUCH THAT A COTTER PIN COULD NOT HAVE BEEN INSERTED AT THE FACTORY. (SEE DIAGRAM)Sep 1, 2001 · N8734Z · Cessna P206D · Aileron Control SystemSDR 2001FA0000231Valve Seat · crackedDURING A ROUTINE COMPRESSION CHECK, A LEAK WAS FOUND IN THIS CYLINDER (AIR WAS ESCAPING FROM IN BETWEEN COOLING FINS). UPON REMOVAL OF CYLINDER, 2 CRACKS APPROX. 1 INCH AND .7500 INCH LONG, WERE FOUND TO BE EMANATING FROM THE EXHAUST VALVE SEAT.Aug 16, 2001 · N70083 · Cessna A185E · Turbine Engine Compressor SectionSDR 2001FA0000282Actuator · crackedLEFT MAIN GEAR ACTUATOR CRACKED, RESULTING IN THE LOSS OF HYDRAULIC FLUID. AIRCRAFT MADE A GEAR UP LANDING, AIRCRAFT HAS SUBSTANTIAL DAMAGE TO HORIZONTAL STABILIZER AND ELEVATOR.Aug 11, 2001 · N8137L · Cessna 210L · Landing Gear ActuatorSDR RJW2001F00000Flap Track · looseFLAP TRACK HAS WORKED LOOSE. INDICATIONS ARE: CRACKED FLAP COVER SKIN AND COVE SKIN AND COVE SKIN ATTACH BRACKETS. BOTH OF THESE ARE INDICATION OF LOOSE FLAP TRACK. REPAIRS WERE NOTED IN BOTH OF THESE AREAS BUT FLAP TRACKS WERE NOT REPAIRED. CRACKED FLAP Jul 31, 2001 · N932DB · Cessna U206G · Trailing Edge FlapsSDR RJW2001F00001Flap Track · looseFLAP TRACK HAS WORKED LOOSE. INICATIONS ARE: CRACKED FLAP COVE SKIN ATTACH BRACKETS. BOTH OF THESE DEFECTS ARE INDICATIONS OF A LOOSE FLAP TRACK. REPAIRS WERE NOTED IN BOTH OF THESE AREAS BUT THE FLAP TRACKS WERE NOT REPAIRED.Jul 31, 2001 · N932DB · Cessna U206G · Trailing Edge FlapsSDR 2001FA0000226Spar · crackedCRACK DEVELOPED ON TOP OF LEFT WING. INVESTIGATION REVEALED LOWER FORWARD WING SPAR HINGES AND PINS WORN OUT RESULTING IN EXCESS OF MOVEMENT IN THE LEADING EDGE OF WINGS. NEW WING SPARSJul 28, 2001 · N2764T · Beech 95C55 · Wing SparSDR BSY2001F00006Light · inoperativePHL MIR RIGHT MAIN GEAR, NO DOWN AND LOCK INDICATION. REMOVED AND REPLACED DOWN AND LOCK BULB. OPS CHECK GOOD.Jul 9, 2001 · N456WW · Beech 58 · Landing Gear Position and WarningSDR FPI2001F00004Spring · brokenSPRING ON SHUTTLE VALVE FLAPPER DOOR (ENGINE DRIVEN VACUUM PUMP SIDE) BROKE SHELLING OUT ENGINE DRIVEN VACUUM PUMP THUS ALLOWING ENGINE VACUUM TO VENT THROUGH ENGINE DRIVEN PUMP, CAUSING TOTAL LOSS OF VACUUM SYSTEM.Jun 13, 2001 · N2145U · Cessna T210N · Vacuum Distribution SystemSDR 20010607CW003Fuel Control · defectiveTHE PILOT REPORTED A ROUGH ENGINE IN FLIGHT AND RETURNED TO AIRPORT, A SAFE LANDING WAS MADE. MAINTENANCE GROUND RUN AIRCRAFT AND A FLUCTUATION IN FUEL FLOW WAS NOTED. THEY FOUND THAT THE MIXTURE CONTROL WAS STIFF WHEN MOVING, (POSSIBLE GALLING).May 18, 2001 · N5587K · Beech F33A · Fuel Control/Reciprocating EnginesSDR 20010612CW012Blade · crackedBLADE FOUND CRACKED IN THE SECOND RETENTION THREAD DURING PENETRANT INSPECTION PERFORMED AT OVERHAUL. NO RED DYE LEAKAGE REPORTED. NO ABNORMAL VIBRATION REPORTED.May 18, 2001 · N7735R · Beech E33C · Propeller Blade SectionSDR 20010607CW002Fuel Control · defectiveTHE PILOT REPORTED A ROUGH ENGINE IN FLIGHT AND RETURNED TO AIRPORT, A SAFE LANDING WAS MADE. MAINTENANCE GROUND RUN AIRCRAFT AND A FLUCTUATION IN FUEL FLOW WAS NOTED. THEY FOUND THAT THE MIXTURE CONTROL WAS STIFF WHEN MOVING. (POSSIBLE GALLING). FUEL CONTMay 17, 2001 · N5609S · Beech F33A · Fuel Control/Reciprocating EnginesSDR 20010515AP003Control Cable · brokenRH THROTTLE CABLE BROKE IN FLIGHT. PILOT PERFORMED IN FLIGHT SHUTDOWN. INSPECTION REVEALED CABLE BROKE INSIDE FERRULE JUST BEFORE CRIMP ON ENGINE SIDE. THIS CONDITION WOULD BE IMPOSSIBLE TO DETECT BY NORMAL INSPECTION PROCEDURES.May 2, 2001 · N78DM · Beech 58 · Power LeverSDR 20010501CW017Rudder Bar · damagedPILOT SIDE LEFT RUDDER PEDAL COLLAPSED IN FLIGHT. SAFECOM FILED. APPEARS THAT TORQUE TUBE MAY HAVE BEEN DAMAGED BY MAINTENANCE WHEN BUSHING WAS INSTALLED.May 1, 2001 · N9497R · Cessna U206G · Rudder Control SystemSDR 20010507CW010Spar · crackedFOUND RIGHT ELEVATOR SPAR CRACKED AT OUTBOARD ATTACH POINT. HORIZONTAL STABILIZER HAD PREVIOUS REPAIRS WERE LOCATED DIRECTLY FORWARD OF CRACK IN ELEVATOR SPAR.Apr 23, 2001 · N731CS · Cessna A188B · Elevator, Spar/RibSDR 20010508CW019Throttle Body · out of adjTHROTTLE BODY AND METERING UNIT WAS FOUND TO BE OUT OF ADJUSTMENT, DURING INSPECTION THE CONTROL ARM AT THROTTLE BODY WAS FOUND LOOSE AND ROTATING ON SHAFT. NO ADJUSTMENT OF IDLE MIXTURE OR IDLE COULD BE PERFORMED DUE TO CHANGING CONDITION BETWEEN THROTTLE BOApr 13, 2001 · N731CS · Cessna 188B · Fuel Control/Reciprocating EnginesSDR 20010501CW004Bracket · corrodedDURING ANNUAL INSPECTION FOUND EXFOLIATION ON RIGHT HORIZONTAL STAB ATTACH BRACKET.Apr 5, 2001 · N59299 · Cessna 210L · Horizontal Stabilizer StructureSDR 20010423CW016Line · leakingFOUND FUEL RETURN LINE LEAKING THROUGH THE STEEL BRAID. HOSE IS LESS THAN 3 YEARS OLD, WITH NO VISIBLE DAMAGE. EVEN THOUGH THIS TYPE HOSE IS APPROVED FOR FUEL, AVIATION FUEL SEEMS TO DETERIOATE IT. HOSE HAS STEEL BRAID EXTERIOR.Apr 4, 2001 · N5VA · Cessna U206F · Aircraft Fuel Distribution SystemSDR 20010501CW009Wire · brokenGEAR WOULD NOT GO UP. FOUND BROKEN WIRE GOING TO UP LOCK SWITCH, REPAIRED WIRE. OPS CHECKS GOOD.Apr 3, 2001 · N58TA · Beech 58 · Landing Gear System WiringSDR 20010430CW005Starter · failedTHIS STARTER WAS SUPPLIED WITH A ZERO TIME OVERHAULED ENGINE. THE ENGINE WAS INSTALLED JULY 20, 2000. STARTER FAILED MARCH 23, 2001 AFTER ACCUMULATING ONLY 396.7 HOURS. DID NOT DISASSEMBLE STARTER DUE TO WARRANTY.Mar 29, 2001 · N90FC · Cessna 310R · Engine StarterSDR 20010502CW003Pitot Line · chafedFOLLOWING REPAIR FROM LANDING ACCIDENT, ON FIRST FLIGHT AFTER REPAIRS, PILOT REPORTED AIRSPEED APPEARED TO INDICATE 30 KNOTS LOW. POST FLIGHT MAINTENANCE REVELED A CHAFE HOLE IN PITOT LINE IN LEFT WING AT A NOSE RIB.Mar 27, 2001 · N9874M · Cessna 207A · Pitot/Static SystemSDR YAD2003F00004Pitot Line · chafedFOLLOWING REPAIR FROM LANDING ACCIDENT, ON FIRST FLIGHT AFTER REPAIRS, PILOT REPORTED AIRSPEED APPEARED TO INDIDCATE 30 KNOTS LOW. POST FLIGHT MAINTENANCE REVELED A CHAFE HOLE IN PITOT LINE IN LT WING AT A NOSE RIB.Mar 27, 2001 · N9874M · Cessna 207A · Pitot/Static SystemSDR 20010423CW009Relay · inoperativeGEAR WOULD NOT GO UP ALL THE WAY. FOUND DYNAMIC BRAKE RELAY OPENING UP UNDER A LOAD IN THE UP POSITION. REMOVED AND REPLACED RELAY. OPS CHECKED GOOD.Mar 7, 2001 · N58TA · Beech 58 · Landing Gear Retraction/Extension SystemSDR 20010411CW007Counterweight · separatedCOUNTERWEIGHT DEPARTED LEFT PROP ON TAKEOFF ROLL. SPINNER AND BACKING PLATE WERE DESTROYED. PROP HUB WAS CRACKED IN TWO PLACES. NO OTHER DAMAGE TO AIRCRAFT OR ENGINE. ROTOR COUNTERWEIGHT WAS NOT FOUND.Mar 6, 2001 · N69RP · Beech D55 · Propeller AssemblySDR 20010301CW008Oil Filter · defectivePIECES OF SEALANT USED TO SEAL THE INLET AND OUTLET OF THE FILTER, INSIDE THE FILTER FLAKING OFF AND GOING DOWNSTREAM IN THE OIL SYSTEM. PIECES COULD GET INTO THE PRESSURE SYSTEM AND STARVE A BEARING FOR OIL.Mar 1, 2001 · N2170S · Cessna 210L · Engine Oil Distribution (Airframe Furnished)SDR 20010413CW003Bellcrank · brokenLEFT NOSE GEAR DOOR ROD ATTACH CLEVIS PIN FELL OUT. UPON RETRACTION OF GEAR, LEFT NOSE DOOR FOULED THE RETRACTORY NOSE GEAR AND JAMMED. GEARBOX CONTINUED PULLING UNTIL 0842102 BELLCRANK BROKE. WHEN GEAR WAS EXTENDED NOSE GEAR WOULD NOT EXTEND. DOOR CLEVISFeb 20, 2001 · N3452Q · Cessna 320F · Landing Gear Door ActuatorSDR 20010426CW015Cylinder Head · crackedCYLINDERS HAVE CRACKS ADJACENT TO EXHAUST SEAT AND INTAKE SEATS BETWEEN FINS 14 AND 20. CYLINDER SERIAL NUMBERS: (52J976779), 52J976780, 52J976781, 52J976782, 52J976787, 52J976788.Feb 13, 2001 · Reciprocating Engine Cylinder SectionSDR 20010426CW016Cylinder Head · crackedCYLINDER CRACKS ADJACENT TO EXHAUST SEAT AND INTAKE SEAT BETWEEN FINS 14 AND 20. CYLINDER SERIAL NUMBERS: 52J976779, (52J976780), 52J976781, 52J976782, 52J976787, 52J976788.Feb 13, 2001 · Reciprocating Engine Cylinder SectionSDR 20010426CW017Cylinder Head · crackedCYLINDER CRACKS ADJACENT TO EXHAUST SEAT AND INTAKE SEATS BETWEEN FINS 14 AND 20. CYLINDER SERIAL NUMBERS: 352J976779, 52J976780, (52J976781), 52J976782, 52J976787, 52J976788.Feb 13, 2001 · Reciprocating Engine Cylinder SectionSDR 20010426CW018Cylinder Head · crackedCYLINDER CRACKS ADJACENT TO EXHAUST SEAT AND INTAKE SEATS BETWEEN FINS 14 AND 20. CYLINDER SERIAL NUMBERS: 52J976779, 52J976780, 52J976781, (52J976782), 52J976787, 52J976788.Feb 13, 2001 · Reciprocating Engine Cylinder SectionSDR 20010426CW019Cylinder Head · crackedCYLINDER CRACKS ADJACENT TO EXHAUST SEAT AND INTAKE SEATS BETWEEN FINS 14 AND 20. CYLINDER SERIAL NUMBERS: 52J976779, 52J976780, 52J976781, 52J976782, (52J976787), 52J976788.Feb 13, 2001 · Reciprocating Engine Cylinder SectionSDR 20010426CW020Cylinder Head · crackedCYLINDER CRACKS ADJACENT TO EXHAUST SEAT AND INTAKE SEATS BETWEEN FINS 14 AND 20. CYLINDER SERIAL NUMBERS: 52J976779, 52J976780, 52J976781, 52J976782, 52J976787, (52J976788).Feb 13, 2001 · Reciprocating Engine Cylinder SectionSDR 20010426CW021Cylinder Head · crackedCYLINDER HEADS CRACKED ON INTAKE SIDE ON EXTERIOR ADJACENT TO INTAKE SEAT. UNLIKE MANY OTHER CRACKED MILLINEUM CYLINDERS THESE WERE ALSO CRACKED ON THE EXHAUST SIDE , VISIBLE FROM OUTSIDE BETWEEN FINS 18 TO 20. SERIAL NUMBERS: (52L976947), 52L976948, 52Feb 5, 2001 · N90193 · Reciprocating Engine Cylinder SectionSDR 20010426CW022Cylinder Head · crackedCYLINDER HEADS CRACKED ON INTAKE SIDE ON EXTERIOR ADJACENT TO INTAKE SEAT. UNLIKE MANY OTHER CRACKED MILLINEUM CYLINDERS THSES WERE ALSO CRACKED ON THE EXHAUST SIDE VISIBLE FROM OUTSIDE BETWEEN FINS 18 TO 20. SERIAL NUMBERS: 52L976947, (52L976948), 52L976Feb 5, 2001 · N90193 · Reciprocating Engine Cylinder SectionSDR 20010326CW007Hub · undersizeHUB GREASE FITTING HOLE NOT CHAMFERED PROPERLY. THREE BLADE SHANKS UNDER MINIMUM AND HAVE NOT BEEN COMPRESSIVELY ROLLED. HUBS HAVE WRONG GREASE FITTING AND WRONG NUT.Jan 29, 2001 · N263AC · Beech 58 · Propeller Hub SectionSDR 20010214CW001Heater · erodedPILOT SMELLED CABIN HEATER GASES IN AIRCRAFT. INSPECTED FOUND CABIN HEATER(B4500) CERMA KOTE, COMBUSTION CAN WITH HOLE IN AFT AREA OF CAN BY REAR DRAIN. INSTALLED REBUILT HEATER.Jan 18, 2001 · N922DN · Beech 58 · Heating SystemSDR 20010322CW007Safety Switch · inoperativeLANDING GEAR DOWN LIGHT DID NOT ILLUMINATE. SWITCH ACCT LEAF WAS BROKEN.Jan 15, 2001 · N31DB · Cessna 401 · Landing Gear Position and WarningSDR 20010306CW001Bellcrank · wornRUDDER BELLCRANK PN 0712309-16AGW HAD EXTREME WEAR SEVERAL PLACES, BOTH SIDES. WHERE THEY ARE LOCATED THEY ARE DIFFICULT TO INSPECT AND LUBERCATE. MADE INSPECTION PANEL TO BE ABLE TO GAIN ACCESS TO THIS VITAL AREA. FAILURE OF THIS PART WOULD POTENTIALLY CAUJan 1, 2001 · N4877Q · Cessna A188B · Rudder Control SystemSDR 20010222CW004Pump · leakingSHORTLY AFTER TAKEOFF, PILOT SMELLED SMOKE IN COCKPIT AND RETURNED TO AIRPORT. UPON INSPECTION, FOUND ENGINE DRIVEN FUEL PUMP TO BE LEAKING BETWEEN CASE HALVES. NO HEAT RELATED DAMAGE TO ENGINE AREA WAS NOTED.Dec 17, 2000 · N2054N · Beech V35B · Engine Fuel PumpSDR 20010426CW006Cylinder Head · crackedCYLINDER HEADS CRACKED FROM THE OUTSIDE OF THE INTAKE SEAT TO THE SPARK PLUG HOLE. CYLINDER SERIAL NUMBERS: G98/9438, (G98/9439), G98/9440, G98/9441, H98/9469.Dec 4, 2000 · Reciprocating Engine Cylinder SectionSDR 20010426CW007Cylinder Head · crackedCYLINDER HEADS CRACKED FORM THE OUTSIDE OF THE INTAKE SEAT TO THE SPARK PLUG HOLE. CYLINDER SERIAL NUMBERS: G98/9438, G98/9439, (G98/9440), G98/9441, H98/9469.Dec 4, 2000 · Reciprocating Engine Cylinder SectionSDR 20010426CW008Cylinder Head · crackedCYLINDER HEADS CRACKED FROM THE OUTSIDE OF THE INTAKE SEAT TO THE SPARK PLUG HOLE. CYLINDER SERIAL NUMBERS: G98/9438, G98/9439, G98/9440, (G98/9441), H98/9469.Dec 4, 2000 · Reciprocating Engine Cylinder SectionSDR 20010426CW009Cylinder Head · crackedCYLINDER HEADS CRACKED FROM THE OUTSIDE OF THE INTAKE SEAT TO THE SPARK PLUG HOLE. CYLINDER SERIAL NUMBERS: G98/9438, G98/9439, G98/9440, G98/9441, (H98/9469).Dec 4, 2000 · Reciprocating Engine Cylinder SectionSDR 20001030SH033Cylinder · delaminatedCERMINIL COATING DELAMINATED FROM ONE STEEL CYLINDER BORE AT 82.2 HOURS TSO. POSSIBLE CAUSE, SOME INDIVIDUAL POSSIBLY TOUCHED CYLINDER BORE JUST BEFORE PROCESSING. TOUCHING THE CYLINDER BORE AFTER FINAL CLEANING AND/OR DURING PROCESSING IS STRICTLY PROHIBITEOct 30, 2000 · Reciprocating Engine Cylinder SectionSDR 20001218SH007Cylinder · delaminatedCERMINIL COATING DELAMINATED FROM ONE STEEL CYL BORE AT 82.2 HRS TSO. POSSIBLE CAUSE, SOME INDIVIDUAL POSSIBLY TOUCHED CYL BORE JUST BEFORE PROCESSING. TOUCHING CYL BORE AFTER FINAL CLEANING AND/OR DURING PROCESSING IS STRICTLY PROHIBITED IN SPECS FOR PROCESOct 30, 2000 · Reciprocating Engine Cylinder SectionSDR 20010509CW008Vent Line · chafedDURING AN ANNUAL INSPECTION, THE FLEXIBLE FUEL VAPOR VENT LINE WAS FOUND CHAFED AGAINST THE POSITIVE BATTERY CABLE WHICH SUPPLIES POWER TO THE STARTER CONTACT SOLENOID. UPON REMOVAL, THE FUEL LINE SHOWED EVIDENCE OF ARCHING AND THE STEEL OUTER BRAIDING WAS BUOct 20, 2000 · N61795 · Cessna 185F · Fuel StorageSDR 20001108SH003Flyweight · damagedRELEVANT MAGNETIC PARTICLE INDICATION IN ALL FOUR CORNERS OF FLYWEIGHT DISC. REF: CESSNA. (X)Oct 16, 2000 · Propeller GovernorSDR AU000926Seal · faulty(AUS) CRANKSHAFT SEAL INNER LIP DAMAGED. SEAL WAS A NEW ITEM RECEIVED FROM SUPPLIER. (X)Sep 21, 2000 · Reciprocating Engine Power SectionSDR 20000908SH010Flyweight · failedRELEVANT INDICATION ACROSS FLYWEIGHT BODY. (X)Aug 15, 2000 · Propeller Governor
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