Continental IO-520-F

Service difficulty reports · 751

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 = 'IO520F'
  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 CA041014006Reservoir · cracked(CAN) COULD SMELL STRONG FUEL ODOR IN COCKPIT AND ALSO NOTED FUEL STAIN ON BELLY OF AIRCRAFT DURING INSPECTION. SUSPECTED RESEVOIR QUICK DRAIN LEAKY BUT FURTHER INVESTIGATION REVEALED A 1 INCH CRACK ON FORWARD LOWER WELD SEAM ON RESEVOIR. RESEVOIR REMOVED, ROct 7, 2004 · Cessna U206E · Fuel StorageSDR CA041014007Reservoir · damaged(CAN) UPON 1000 HR FUEL SYSTEM INSPECTION AS REQUIRED BY CESSNA, THE FUEL WAS COMPLETELY DRAINED FROM THE AIRCRAFT.UPON REMOVING THE LOWER R/H RESEVOIR QUICK DRAIN,IT WAS REVEALED IT WAS QUITE LOOSE BUT NOT LEAKING. UPON REINSTALLATION OF QUI CK DRAIN VALVE IOct 7, 2004 · Cessna U206E · Fuel StorageSDR CA050308015Crankcase · failed(CAN) CRANKCASE FAILURE (7TH STUD CRANKCASE) AS RESULT OF A RECENT FAILURE. DURING CHANGE ON CYL NR1, SPECIAL ATTENTION WAS PAID TO NR2, NR3 INTERMEDIATE BRG SADDLE. INSP CONCLUDED THAT MOVEMENT OF BRGS HAD OCCURRED, TEARDOWN OF ENG WOULD BE REQUIRED FOR INOct 7, 2004 · Cessna U206F · Reciprocating Engine Power SectionSDR FMA2004F00000Contactor · defectivePILOT REPORTED MISFIRE DURING MAG CHECK. TROUBLESHOOTING REVEALED RIVETING OF GROUND SIDE OF CONTACT TO MOUNTING BASE HAD FAILED ALLOWING ELECTRICAL CONTACT TO RATTLE IN BASE.Oct 4, 2004 · N207DG · Cessna T207 · Magneto/DistributorSDR CA040924006Bolt · stripped(CAN) AN3-4A BOLTS ATTACHING IB BRACKET TO FLAP FOUND STRIPPED. BOLTS REPLACED WITH NEW AN3-4A. END OF DEFECT.Sep 24, 2004 · Cessna U206G · FastenersSDR CA040924008Fitting · cracked(CAN) LT MAIN LANDING GEAR OB FITTING FOUND CRACKED.Sep 24, 2004 · Cessna U206G · Main Landing Gear Attach SectionSDR CA040924007Tube · cracked(CAN) NR 5 CYLINDER PUSH ROD TUBE HOUSINGS FOUND 1 CRACKED, AT CYLINDER HEAD END, THE OTHER WAS BENT AT OB END OF SPRING RETAINER.Sep 13, 2004 · Cessna U206G · Reciprocating Engine Cylinder SectionSDR CA040920002Spark Plug · broken(CAN) WHEN REMOVING NR 4 CYLINDER LOWER SPARK PLUG, BROKE COMPLETELY OFF, JUST ABOVE BASE AND BELOW HEX DRIVE PORTION.Sep 13, 2004 · Cessna U206A · Spark Plug/IgniterSDR CA040830013Crankcase · unserviceable(CAN) CRANKCASE FAILURE (7TH STUD CRANKCASE) INSP WAS CARRIED OUT. CYLS NR1, NR3 WERE REMOVED SO NR2, NR3 INTERMEDIATE BRG SADDLE COULD BE VIEWED. MOVEMENT OF BRGS HAD OCCURRED, TEAR DOWN WOULD BE REQUIRED FOR FURTHER INVEST. IT WAS FOUND THAT THERE WAS FREAug 24, 2004 · Cessna U206F · Reciprocating Engine Power SectionSDR B7T2004F00000Hose · leakingAIRCRAFT ON CLIMB-OUT, AT 200 FT AGL ENGINE SURGED AS IF IT WAS NOT RECEIVING ENOUGH FUEL. PILOT SWITCHED FUEL TANKS (FROM RT TANK TO LT TANK) AND FUEL BOOST PUMP WAS TURNED ON AND ENGINE SMOOTH OUT FUEL BOOST WAS TURNED OFF AND IN APPROXIMATELY 10 SECONDS LAAug 23, 2004 · N1673U · Cessna 207 · Engine Fuel DistributionSDR CA040904001Doubler · cracked(CAN) THE BULKHEAD DOUBLER REINFORCES THE HOLE WHERE THE HORIZONTAL STAB ATTACHES. DOUBLER SPLIT IN TWO THROUGH ANCHOR NUT RIVET HOLE. THIS DOUBLER ONLY FOUND ON THE FIRST MODELS. LATER MODELS HAD TWO DOUBLERS. OLDER MODELS HAVE THE SAME SINGLE DOUBLER INSTAAug 20, 2004 · Cessna 207 · Horizontal Stabilizer, Attach FittingsSDR CA040819007Crankcase · failedA/C ENG CRANKCASE FAILURE AS A RESULT OF A RECENT FAILURE DESCRIBED IN SDR CA040806006 SUBMITTED 08/6/2004, A VOLUNTARY INSPECTION CARRIED OUT BY OPERATOR AT REQUEST OF OVERHAUL FACILITY. CYLINDERS NR 1 & 3 REMOVED SO THAT NR 2 & 3 INTERMEDIATE BEARING SADDLE Aug 12, 2004 · Cessna U206G · Reciprocating Engine Power SectionSDR CA040806006Saddle · failedCRANKCASE FAILURE (7TH STUD CRANKCASE) CRANKCASE FRETTING ON NR 2 & 3 INTERMEDIATE BEARING SADDLE THRU-BOLT PADS. THE OIL SUPPLY TO THE NR 2 CONNECTING ROD JOURNAL WAS EITHER CUT OFF COMPLETELY OR DRASTICALLY REDUCED CAUSING OIL STARVATION TO THE CONNECTING ROJul 26, 2004 · Cessna U206G · Reciprocating Engine Power SectionSDR UAT2004F00000Nut · crackedREMOVED WING STRUTS TO REBUILD WINGS AND FOUND TWO CRACKED NUTS ON ONE WING STRUT. 5 EA NAS464P5A27 BOLTS HOLD THE STRUT FITTINGS IN EACH END OF THE WING STRUTS AND THESE NUTS HOLD THE BOLTS IN. THERE ARE ONE THICK AND ONE THIN WASHER ON EACH BOLT IAW IPC. Jul 22, 2004 · N9736M · Cessna 207A · FastenersSDR AOC04001Cylinder · damagedFOLLOWING SEVERAL WRITE UPS CONCERNING HIGH CYLINDER TEMP, THE CYLINDERS WERE REMOVED AFTER EXTENSIVE TROUBLESHOOTING REVEALED NO DEFECT. UPON INSPECTION OF THE CYLINDERS, IT WAS NOTED THAT THREE CYLINDERS HAD UNUSUAL CIRCULAR MARKS ON THE CYLINDER WALLS. ONE Jul 12, 2004 · N9802Z · Cessna U206G · Reciprocating Engine Cylinder SectionSDR CA040630002Crankcase · cracked(CAN) DURING UNSCHEDULED MAINTENANCE 3 CRACKS WERE NOTICED ON CRANKSHAFT NEAR PROP FLANGE. TWO CRACKS WERE APPROXIMATELY 2 INCHES IN LENGTH PARALLEL TO EACH OTHER WITH SMALLER CRACKS EXTENDING. ONE CRACK IS ALSO APPROXIMATELY 2 INCHES IN LENGTH AND ABOUT 1 INCJun 30, 2004 · Cessna U206G · Reciprocating Engine Power SectionSDR 040624Crankcase · crackedIT HAD PROP STRIKE WHICH IS WHEN THE DAMAGE PROBABLY OCCURRED. OVERHAULED AND RAN FULL LIFE BUT OIL LEAKS DEVELOPED AT THE MOST FORWARD THROUGH BOLTS. BECAUSE OF THE OIL LEAK AT BOLT HOLE DURING RUNUP AFTER OVERHAUL THAT WAS JUST COMPLETED. CRACK IS IN FRONTJun 24, 2004 · Cessna 206CESSNA · Reciprocating Engine Power SectionSDR CA040830009Seal · leaking(CAN) IN CRUISE, PRIOR TO DESCENT, AUDIBLE AND INDICATED. PROP SURGE AND RPM DECREASE OF APPROXIMATELY 200 RPM OCCURRED. PROP PITCH WAS ADJUSTED TO FULL FINE POSITION. NO RESPONSE TO BLADE CHANGE WAS NOTED. DURING DESCENT PRIOR TO APPROACH, PROP SLOWLY INCRJun 4, 2004 · Cessna 207A · Propeller Hub SectionSDR WVB2004F02004Muffler · inoperativeDURING DEPARTURE CLIMB OUT OF NONESSENTIAL ELECTRICAL ITEMS. HE INSREASED VENTILATION AS THE CO INDICATOR GOT DARKER INDICATING CO INCREASE. HE RETURNED AND LANDED WITHOUT FURTHER PROBLEMS ALTHOUGH HE DID EXPERIENCE A HEADACHE AND NAUSEA. MAINTENANCE REPLACMay 26, 2004 · N756DJ · Cessna U206G · Engine Noise SuppressorSDR CA040503012Tab · corroded(CAN) WHILE PERFORMING CAP INSPECTION, EXAMINATION OF ELEVATOR T/E AND TRIM TAB FOR CORROSION, DELAMINATION OF FOAM STRUCTURE, IT WAS DISCOVERED THAT ASSEMBLIES HAD NO FOAM INSIDE. PROPER SKINS WERE THEN ORDERED. UPON THEIR DELIVERY, THEY WERE ALSO FOUND NOT TApr 28, 2004 · Cessna 207 · Elevator, Tab StructureSDR FMAA2004001Bolt · brokenTHE HEAD OF THE BOLT ATTACHING THE REAR OF THE NOSE GEAR DRAG LINK TO THE AIRCRAFT WAS FOUND LAYING IN THE NOSE GEAR WELL. THIS BOLT IS IN A SHEAR LOAD AND SHOULD NOT HAVE BEEN SUBJECT TO ANY FORCES THAT WOULD FORCE THE HEAD OF THE BOLT TO THE POINT OF CRACKIMar 30, 2004 · N734GW · Cessna U206G · FastenersSDR CA040322007Cylinder Head · separated(CAN) IN FLIGHT SEPARATION OF CYL NR 3 HEAD.Mar 11, 2004 · Cessna U206G · Reciprocating Engine Cylinder SectionSDR CA040228001Clevis Bolt · worn(CAN) RUDDER CABLE CLEVIS BOLTS INSPECTED DURING ROUTINE INSPECTION FOUND TO BE WORN APPROX. 30 PERCENT THROUGH THE BOLT. NEW CLEVIS BOLTS PART NUMBER AN23-11 INSTALLED.Feb 27, 2004 · Cessna 206CESSNA · Rudder Control SystemSDR AUS20040078Landing Gear · collapsed(AUS) LT MAIN LANDING GEAR LEG COLLAPSED. THE LEG WAS A NEWLY FITTED ITEM AND FAILED 530MM (20.8IN) FROM THE IB TIP OF THE LEG. AIRCRAFT TAILPLANE, ELEVATOR, WINGTIP AND POD DAMAGED.Feb 11, 2004 · Cessna U206G · Main Landing GearSDR ENHA2004C2070Engine · shutdownON TAKE OFF AT 300 FT AGL PILOT EXPERIENCED ENGINE LOSS OF POWER, ENGINE QUIT. PILOT EMERGENCY ACTION IN ACCORDANCE WITH AFM RESTORED ENGINE OPERATION. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. L FUEL TANK HAD APPROX 25 GALS FUEL, R FUEL TANK HAD APPROX 25 GAFeb 7, 2004 · N9728M · Cessna 207A · Engine (Reciprocating)SDR ACE020604Gyro · spinningPILOT REPORTED THAT TWO AIR DRIVEN GYROS BEGAN SPINNING AND THE ENGINE RPM INCREASED TO ABOVE RED LINE. WHEN UNABLE TO REDUCE RPM WITH PROP CONTROL, RETURNED TO THE AIRPORT. GROUND CHECKS COULD NOT DUPLICATE THE RPM PROBLEM.Feb 6, 2004 · N9957M · Cessna 207A · Attitude and Direction Data SystemSDR AUS20040069Fitting · improper part(AUS) STATIC SYSTEM T FITTING UNAPPROVED PART. FITTING WAS A COMMERCIAL PRODUCT. PERSONNEL/MAINTENANCE ERROR. UNAPPROVED PART.Jan 13, 2004 · Cessna U206A · Pitot/Static SystemSDR ACE010904Cylinder Head · crackedPILOT REPORTED LOSS OF POWER AND VIBRATION ON LANDING. MAINTENANCE DISCOVERED THE NR 3 CYLINDER HEAD CRACKED.Jan 9, 2004 · N9874M · Cessna 207A · Reciprocating Engine Cylinder SectionSDR ACE010704Cylinder Head · crackedPILOT REPORTED POWER LOSS AND VIBRATION - RE-ROUTED AND MADE A SAFE LANDING. MAINTENANCE DISCOVERED THE NR 2 CYLINDER HAD 100 PERCENT HEAD SEPARATION AT THE HEAD TO BARREL INTERFACE IN LINE WITH THE TOP OF THE STEEL BARREL.Jan 7, 2004 · N9874M · Cessna 207A · Reciprocating Engine Cylinder SectionSDR AUS20040002Clip · separated(AUS) PROPELLER BLADE ROOT CIRCLIP AND ASSOCIATED SHIMS SEPARATED.Jan 4, 2004 · Cessna U206F · Propeller Blade SectionSDR AUS20040090Spring · broken(AUS) ENGINE STARTER ADAPTER CLUTCH SPRING TANG BROKEN OFF CAUSING SPRING TO SLIP ON GEAR. BROKEN PIECE OF SPRING FOUND IN BASE OF STARTER ADAPTER.Jan 2, 2004 · Cessna U206G · Engine StarterSDR AUS20031330Skin · loose(AUS) LT ELEVATOR RIVETS FAILED ALLOWING LOWER ELEVATOR SKIN TO BECOME LOOSE AT THE IB TRAILING EDGE. INVESTIGATION FOUND SIMILAR PROBLEMS WITH THE RIVETS ALONG THE LEADING EDGE. THE RIVETS WERE .0937 INCH POP RIVETS. INSPECTION OF THE RT ELEVATOR FOUND THE Dec 29, 2003 · Cessna 207 · Elevator, Plate/SkinSDR AUS20031305Brushes · worn(AUS) ALTERNATOR GROUND BRUSH ALMOST WORN AWAY. POSITIVE BRUSH WAS HARDLY WORN.Dec 15, 2003 · Cessna U206G · DC Generator-AlternatorSDR AUS20031204Wire · loose(AUS) PILOT REPORTED AILERONS JAMMING AFTER TAKE OFF. THE JAMMING CONTINUED INTERMITTENTLY AND AFTER LANDING THE PILOT WAS ABLE TO DUPLICATE THE PROBLEM. IT WAS SUSPECTED THAT A LOOSE WIRE MAY HAVE BEEN FOULING WITH THE PULLEY ON THE PILOTS CONTROL YOKE.Nov 17, 2003 · Cessna U206F · Flight Control System WiringSDR 2003FA0001211Crankcase · crackedLT SIDE (2.4.6) CRACKED IN CENTER MAIN BEARING BOSSES IN LOWER OIL ANNALYSIS.Nov 12, 2003 · Engine (Reciprocating)SDR CA031113005Fitting · cracked(CAN) DURING GROUND HANDLING, HOR. STAB. FOUND TO HAVE FREEPLAY ON RT SIDE. UPON FURTHER INSP, THE RT FWD ATTACH FITTING WAS FOUND TO BE CRACKED. ALL OTHER EMPANAGE FITTINGS AND ATTACH POINTS WERE INSPECTED FOR LOOSENESS AND CONDITION. ALL AREAS FOUND SERVINov 10, 2003 · Cessna 207A · Horizontal Stabilizer, Attach FittingsSDR AUS20031091Cap · faulty(AUS) FUEL CAP PLASTIC SPACER FAILED ALLOWING FUEL TO VENT FROM TANK CAUSING THE FUEL CELL TO COLLAPSE.Oct 13, 2003 · Cessna U206F · Fuel StorageSDR CA031013001Balance Weight · cracked(CAN) UPON INSPECTION IT WAS DISCOVERED THAT THERE WERE SMALL HAIRLINE CRACKS (HORIZONTAL) AT THE THREE MOST OUTBOARD MASS BALLANCE WEIGHT ATTACH SCREW LOCATIONS. ONE INCH IN LENGTH.Oct 13, 2003 · Cessna U206G · AileronsSDR CA031015014Doubler · cracked(CAN) HORIZONTAL ATTACHMENT POINT DOUBLER FORWARD RT CRACKED AT TOP NUTPLATE RIVET. DOUBLER REPLACED WITH NEW. AREA INSPECTED. NO OTHER FAULTS FOUND. CAUSE IMPROPER GROUND HANDLING (SPECULATION).Oct 2, 2003 · Cessna U206B · Horizontal Stabilizer, Plate/SkinSDR AUS20030997Hose · loose(AUS) STRONG SMELL OF FUEL IN COCKPIT. INVESTIGATION FOUND A LOOSE HOSE NUT CONNECTION ON THE FCU AND A LOOSE HOSE ON THE FUEL STRAINER ASSEMBLY. PERSONNEL/MAINTENANCE ERROR.Sep 20, 2003 · Cessna U206G · Engine Fuel DistributionSDR 2003FA0001219Crankcase · crackedTHIS ENGINE WAS RECEIVED AS CORE ENGINE. THIS IS WHAT WE FOUND WHEN WE LIQUID PENETRANT INSPECTED IT: CRACKED IN BEARING SADDLES, LT SIDE BEARING BOSSES CENTERED.Sep 18, 2003 · Engine (Reciprocating)SDR 2003FA0001220Crankcase · crackedPHASE 3 CASE, 7TH STUD. CRACKED IN MAIN BEARING SADDLE AREA BOTH CENTER SADDLES. I OIL ANNULUS AREA.Sep 18, 2003 · Engine (Reciprocating)SDR AUS20031008Hose · loose(AUS) FUEL PUMP TO FCU HOSE LOOSE AND LEAKING.Sep 17, 2003 · Cessna U206G · Engine Fuel DistributionSDR 2003FA0001221Crankcase · crackedTHIS ENGINE WAS DISMANTLED, CLEANED AND LIQUID PENETRANT INSPECTED. FOUND THIS CENTER REAR MAIN BEARING SADDLE LEFT SIDE CRACKED. MAIN BEARING PART NR 653547.Sep 10, 2003 · Engine (Reciprocating)SDR CA030912001Mount · cracked(CAN) CRACKS IN RADIUS OF ENGINE MOUNT SUPPORTSep 8, 2003 · Cessna U206G · Engine Mount SectionSDR CA030915010Mount · cracked(CAN) CRACKS IN RADIUS OF ENGINE MOUNT SUPPORT.Sep 8, 2003 · Cessna U206A · Engine Mount SectionSDR ACE090503Engine · vibrationPILOT REPORTED ENGINE SHAKING DURING CLIMBOUT, RETURNED FOR AN UNEVENTFUL LANDING. MAINTENANCE COULD NOT DUPLICATE. INSPECTED FUEL, IGNITION, AND MECHANICAL SYSTEMS, NO DISCREPANCIES NOTED.Sep 5, 2003 · N75941 · Cessna 207A · Engine (Reciprocating)SDR 2003FA0001222Crankcase · brokenTHIS ENGINE WAS DISMANTLED FOR OVERHAUL, FOUND THE REAR CENTER MAIN BEARING SADDLE ON THE LEFT SIDE OF THE CRANKCASE IN A CONDITION THAT APPEARS TO BE CRUMBLING APART.Sep 4, 2003 · Engine (Reciprocating)SDR ENE2003F00000Cylinder Head · failedCYLINDER HEAD FAILED ON TAKEOFF. SUBSEQUENT OPERATION LEAD TO COMPLETE SEPERATION OF HEAD FROM CYLINDER. THIS WAS MINIMAL OPERATION. PROBABLE CAUSE OF FAILURE ARE MATERIAL COMPOSITION, HEAT TREATMENT, AND MACHINING OR CASTING INDUCED WEAKNESSES.Sep 3, 2003 · N8337Q · Cessna U206F · Reciprocating Engine Cylinder SectionSDR AUS20030927Attach Fitting · cracked(AUS) LT MAIN LANDING GEAR OUTBOARD ATTACHMENT FITTING CRACKED IN AREAOF UPPER REAR RADIUS.Sep 3, 2003 · Cessna U206G · Fuselage, Landing Gear Attach Fittings
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