Lycoming IO-720-A1B

Service difficulty reports · 50

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 = 'IO720A1B'
  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 2024F00317Display · failedGARMIN 600 PFD FAILED IN CRUISE FLIGHTDec 10, 2024 · N306D · Beech 65B80 · Global Positioning SystemSDR BEMA202111170001Heater · odorPILOT REPORTED SEEING A FLASH OF LIGHT AND A BURNING SMELL COMING FROM BELOW THE INTERMENT PANEL ON THE R/H SIDE BY THE RUDDER PEDDLES AREA. THE PILOT REPORTED AFTER TURNING THE COMBUSTION HEATER OFF THE PROBLEM WENT AWAY.Nov 16, 2021 · N131BA · Beech 65B80 · Heating SystemSDR BEMA20201028001Connecting Rod · brokenPILOT NOTICED ONSET OF SIGNIFICANT VIBRATION, FOLLOWED BY OIL PRESSURE LOSS. SHUT DOWN LT ENGINE ON FINAL AT KMSP. PILOT NOTIFIED MSP TOWER OF ENGINE FAILURE. ONCE ON GROUND UPON COWLING REMOVAL THERE WAS EVIDENCE THE PISTON ROD ON NR 8 CYLINDER HAD A ROD BOct 23, 2020 · N306D · Beech 65B80 · Reciprocating Engine Power SectionSDR BEMA202009230001Alternator · brokenRT ENGINE ALTERNATOR POWER SUPPLY STUD BROKE OFF RECTIFIER PLATE, AT THE PLATES 90 DEGREE BEND NEXT TO MADE IN CHINA STICKER. LOOKED LIKE CRACK STARTED FROM STRESS RISERS THAT FORMED IN THE BEND RADIUS OF THE RECTIFIER PLATE.Aug 24, 2020 · N5078N · Beech 65 · AC Generator-AlternatorSDR BEMA20200618001Dme · failedPILOT REPORTED SMOKE IN COCKPIT AND MADE AN UNSCHEDULED LANDING SAFELY AT ALTERNATE AIRPORT. UPON INVESTIGATION IT WAS FOUND THAT THE DME HAD INTERNALLY FAILED AND BURNT THE CONNECTOR. THE DME IS NOT TRACKED BY TIME OR CYCLES. SO TIMES ARE UNKNOWN.Jun 10, 2020 · N135BA · Beech 6580 · DME/TACAN SystemSDR BEMA2019072900001Intake Valve · brokenTHE #1 CYLINDER INDUCTION VALVE FAILED IN FLIGHT. THE PROBLEM WAS NOT DETECTED UNTIL THE PILOT DID HIE POST FLIGHT WALK AROUND. THE VALVE BROKE IN HALF AT THE NARROW SPOT WERE THE VALVE KEEPERS ARE. THE VALVE PART NUMBER IS 17A23937, AND CONTROL NUMBER FOR THEJul 23, 2019 · N131BA · Beech 65A80 · Reciprocating Engine Cylinder SectionSDR 2014FA0000328Adapter · crackedOIL FILTER ADAPTER CRACKED ACROSS THE UPPER LT CORNER DURING FLIGHT, CAUSING LARGE LOSS OF OIL IN APPROX 10 MINUTES OF OPERATION. PART HAS NOT BEEN DISTURBED ON THE ENGINE SINCE THE ENGINE WAS REBUILT BY MFG 573 HRS AGO IN JULY OF 2011. THE ADAPTER IS ETCHEDMay 13, 2014 · N410RM · Piper PA36285 · Reciprocating Engine Oil SystemSDR 2014FA0000082Bushing · looseCENTER BUSHING OF DISTRIBUTOR BLOCK FOUND LOOSE IN THE PLASTIC OF THE DISTRIBUTOR BLOCK, ROTOR ARM WAS CONTACTING DISTRIBUTOR BLOCK BECAUSE OF THE BUSHING BEING LOOSE.Aug 12, 2012 · N410RM · Piper PA36285 · Magneto/DistributorSDR 2012FA0000384Governor · faultedACFT WAS INSPECTED, ENGINE GROUND WAS CARRIED OUT BOTH ENGINE PERFORMANCE WAS GOOD. AT THE TIME OF FERRYING ACFT UNDER THE FERRY FLIGHT PERMIT WHEN ACFT FLEW AND CRUISE AT 10,000 FEET ALTITUDE. RT PROPELLER WAS NOT RESPONDING WITH THE THE PROPELLER LEVER MOVEMMay 27, 2012 · N41NA · Beech A65 · Propeller GovernorSDR CA6R20110408003Governor · malfunctionedACFT INSPECTED, ENGINE GROUND RUN CARRIED OUT, BOTH ENGINE PERFORMANCES WERE GOOD. ACFT TEST FLIGHT WAS CONDUCTED AND WAS GOOD. AT THE TIME OF FERRING THE ACFT, RT PROP RPM WAS NOT PROPERLY CONTROLLED IAW THE MOVEMENT OF THE PROP LEVER WHEN ACFT WAS FLYING AMay 27, 2012 · N41NA · Beech A65 · Propeller GovernorSDR 2008FA0000468Hinge · cracked(2) OF THE HINGE LINKS HAD CRACKED OFF ON ONE END. UPON DISASSEMBLY IT WAS DETERMINED THAT A CRACK HAD FORMED LENGTHWISE BETWEEN THE FASTENERS AND THE HINGE LINKS. POSSIBLE CAUSE MAY HAVE BEEN FATIGUE. (K)Jul 1, 2008 · N44MA · Beech 65B80 · Fuselage, Door HingeSDR 2006FA0001212Bellcrank · crackedA CRACK WAS FOUND ON THE RT BELLCRANK SUPPORT ASSY. DURING A MANDITORY 5 YEAR INSPECTION IAW MSB 2231 REV 1. (K)Nov 22, 2006 · N44MA · Beech 65B80 · Elevator StructureSDR ZES2006F00001Audio Panel · burnedA SMELL OF SMOKE WAS DETECTED IN THE COCKPIT AND CABIN. PILOTS DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. (K)Oct 11, 2006 · N44M · Cessna 680CE · Audio Integrating SystemSDR 2006F00012Actuator · failedPILOT SELECTED GEAR DOWN FOR LANDING AND HAD NO NOSE INDICATION. HE PERFORMED A LOW LEVEL PASS AND GROUND PERSONNEL DETERMINED THAT THE NOSE GEAR WAS NOT IN THE DOWN AND LOCKED POSITION. A GEAR UP LANDING WAS MADE WITH MINOR DAMAGE TO THE AIRCRAFT. FURTHER INSFeb 14, 2006 · N55SA · Beech 65A80 · Landing Gear ActuatorSDR AU510001675Bolt · sheared(AUS) NR 2 CYLINDER CONNECTING ROD BIG END BOLT FAILED WITH OTHER BIG END BOLT BENT. NR 2 CYLINDER SEPARATED FROM CRANKCASE. (OTHER CAUSE: MATERIAL - HIGH HOURS ) (CASA NR 510001675)Dec 12, 2005 · Newze FU24954 · Reciprocating Engine Power SectionSDR AU510001770Gasket · failedRT ENGINE OIL COOLER LOWER FITTING GASKET FAILED. LOSS OF ENGINE OIL.Dec 12, 2005 · Beech 65B80 · Engine Oil CoolerSDR CVU2005F00003Shaft · shearedPUMP FAILED UNDER NORMAL OPERATING CONDITIONS (VFR, DAY).Aug 18, 2005 · N46MA · Beech 65B80 · Pneumatic Distribution SystemSDR CVU2005F00001Camshaft · wornSMALL METAL FLAKES KEPT RE-APPEARING IN THE OIL SCREENS. FOUND WORN CAM NR 5 AND NR 6 CYLINDER INTAKE VALVES. ENGINES REMOVED FOR REPAIR. USE MFG ENGINE OIL ADDITIVE FROM TIME OF OVERHAUL. RUN ENGINES FREQUENTLY. (K)Jul 15, 2005 · N44MA · Beech 65B80 · Reciprocating Engine Power SectionSDR CVU2005F00002Lifter · wornSMALL METAL FLAKES KEPT RE-APPEARING IN THE OIL SCREENS. FOUND WORN CAM NR 5 AND NR 6 CYLINDER INTAKE VALVES. ENGINES REMOVED FOR REPAIR. USE MFG ENGINE OIL ADDITIVE FROM TIME OF OVERHAUL. RUN ENGINE FREQUENTLY. (K)Jul 15, 2005 · N44MA · Beech 65B80 · Reciprocating Engine Power SectionSDR CVU2005F00000Pump · failedPUMP FAILED UNDER NORMAL OPERATING CONDITIONS. (VFR, DAY) (K)Nov 23, 2004 · N46MA · Beech 65B80 · Vacuum Distribution SystemSDR CVU2004F00000Pump · failedVACUUM PUMP FAILED UNDER NORMAL OPERATING CONDITIONS. (VFR DAY)Sep 23, 2004 · N44MA · Beech 65B80 · Vacuum Distribution SystemSDR BEM2004F00000Bearing · failedNR 1 ALTERNATOR WENT INOPERATIVE IN FLIGHT INVESTIGATION FOUND REAR ROTOR BEARING OF ALTERNATOR HAD NO GREASE AND FAILED.Jul 8, 2004 · N5078N · Beech 65 · DC Generating SystemSDR KZ52004F00000Valve · inoperativePILOT REPORTED HIGH OIL TEMP 210 DEGREES-220 DEGREES F., REMOVED VALVE AND TESTED SIDE BY SIDE WITH NEW VALVE, OLD VALVE DID NOT CLOSE AT THE SAME REATE AS NEW VALVE AND OIL TEMP DECREASED TO.May 6, 2004 · N50786 · Cessna 150J · Engine Oil CoolerSDR 2004FA0000413Valve · inoperativePILOT REPORTED HIGH OIL TEMPERATURE 220-225 DEGREES, REMOVED VALVE AND TESTED SIDE BY SIDE WITH NEW VALVE, OLD VALVE DID NOT CLOSE AT THE SAME RATE AS NEW VALVE, INSTALLED NEW VALVE AND OIL TEMP DECREASED TOO.May 6, 2004 · N50786 · Cessna 150J · Engine Oil CoolerSDR AUS20040146Bolt · failed(AUS) RT MAIN LANDING GEAR TOP TORQUE LINK BOLT FAILED.Mar 1, 2004 · Fltchr FU24AAIRPTS · FastenersSDR AUS20040063Exhaust Valve · sticking(AUS) NR 2 CYLINDER REAR PUSHROD COVER BENT AND LEAKING OIL. SUSPECT CAUSED BY STICKING EXHAUST VALVE.Jan 28, 2004 · Newze FU24954 · Reciprocating Engine Cylinder SectionSDR CVU2003F00000Pump · failedPUMP FAILED UNDER NORMAL OPERATING CONDITIONS (VFR DAY).Sep 20, 2003 · N44MA · Beech 65B80 · Vacuum Distribution SystemSDR AUS20030514Spacer · fractured(AUS) WING TO FUSELAGE RT SPACER FRACTURED.May 15, 2003 · Fltchr FU24AAIRPTS · Fuselage, Wing Attach FittingsSDR AUS20030524Bearing · faulty(AUS) REAR MAIN BEARING SURFACE SEPARATED FROM BEARING SHELL.Apr 29, 2003 · Newze FU24954 · Reciprocating Engine Power SectionSDR 2003FA0000018Main Bearing · failedAFTER TEST CELL RUN, ENGINE OIL WAS DRAINED AND THE SUCTION SCREEN AND FILTER WAS CHECKED. A ABNORMAL AMOUNT OF ALUMINUM WAS FOUND. UPON DISASSEMBLY, IT WAS FOUND THAT THE FRONT BEARING HAD FAILED AT THE NR 2 JOURNAL. THE METAL APPEARED TO HAVE DELAMINATEDDec 19, 2002 · Reciprocating Engine Power SectionSDR AUS20021409Fitting · cracked(AUS) LT WING ATTACHMENT FITTING CRACKED.Dec 2, 2002 · Piper PA36285 · Wing, Fuselage Attach FittingsSDR KZ52002F00002Servo · failedPILOT REPORTED RT ENGINE TO BE LOW ON POWER, FOUND ENGINE TO BE RUNNING VERY RICH, WHICH CAUSED PLUGS TO FOUL, INSTALLED OVERHAULED FUEL SERVO AND CLEANED PLUGS, GROUND RUN AND TEST FLIGHT OK.Aug 28, 2002 · N5078N · Beech 65 · Fuel Controlling SystemSDR KZ52002F00001Gear · brokenA NEW STARTER NEEDS TO BE DESIGNED. ENGINE DID NOT KICK BACK DURING START.Aug 15, 2002 · N5078N · Beech 65 · Engine StarterSDR AUS20021051Connecting Rod · failed(AUS) DURING AGRICULTURE OPERATIONS (SPREADING SUPER) THE PILOT ENCOUNTERED EXCESSIVE ENGINE VIBRATION AND A POSSIBLE OVERSPEED (WAS UNABLE TO READ GAUGES). ENGINE WAS SHUT DOWN AND A FORCED LANDING CARRIED OUT. INITIAL INVESTIGATION FOUND THAT NR 4 OR NR 6 CJul 8, 2002 · Pac CT4A · Reciprocating Engine Power SectionSDR AUS20020418Bolt · broken(AUS) MAIN LANDING GEAR TORQUE LINK BOLT FAILED. LOWER HALF OF OLEO STRUT, TORQUE LINKS, AXLE AND WHEEL ASSEMBLY POPPED OUT AFTER TAKEOFF.Apr 22, 2002 · Newze FU24A954 · Main Landing Gear Strut/Axle/TruckSDR AUS20020327Seal · leaking(AUS) ENGINE FUEL PUMP REAR SEAL LEAKING. FOUND DURING INSPECTION IAW AD/FSM/25.Apr 5, 2002 · Newze FU24954 · Engine Fuel PumpSDR AUS20020102Pin · broken(AUS) PROPELLER BLADE ACTUATING PIN BROKEN.Feb 3, 2002 · Newze FU24954 · Propeller Blade SectionSDR AUS20020103Pin · broken(AUS) PROPELLER BLADE PITCH ACTUATING PIN BROKEN.Feb 2, 2002 · Newze FU24954 · Propeller Blade SectionSDR AUS20010773Gasket · faulty(AUS) FLOW DIVIDER GASKET FAULTY. NEW ITEM FROM MANUFACTURER.Jul 23, 2001 · Fuel DividerSDR 2001FA0000142Cylinder · brokenBARREL TO HEAD SEPERATION DURING FLIGHT.May 12, 2001 · Reciprocating Engine Cylinder SectionSDR AUS20010528Pushrod · distorted(AUS) NR 7 CYLINDER EXHAUST VALVE PUSHROD BENT AND PUSHROD SHROUDDAMAGED CAUSING OIL LEAK. INVESTIGATION FOUND THE VALVE STEM CAP SEPARATED AND THE PISTON SUFFERING FROM SLIGHT IMPACT DAMAGE WITH THE EXHAUST VALVE. METAL CONTAMINATION OF OIL FILTER.Apr 18, 2001 · Newze FU24954 · Reciprocating Engine Cylinder SectionSDR AUS20010527Valve · worn(AUS) NO2 CYLINDER INLET VALVE DAMAGED IN THE COLLETT RECESS AREA.VALVE STEM CAP SEPARATED AND ONLY ONE COLLETT HALF WAS RETAININGTHE VALVE SPRING. METAL PARTICLES FROM THE DAMAGED VALVE WERE FOUND IN THE OIL FILTER AND PARTICLES OF THE MISSING COLLETT WERE FOApr 12, 2001 · Newze FU24954 · Reciprocating Engine Cylinder SectionSDR 20010206CW006Exhaust Valve · brokenEXHAUST VALVE BROKEN IN HALF.Jan 11, 2001 · N134BA · Beech 65A80 · Reciprocating Engine Cylinder SectionSDR AU001059Line · broken(AUS) NR 2 AND NR 4 CYLINDER FUEL INJECTOR LINES PN LW-12098-0-170 AND PN LW-12098-0-240 BROKEN AT OR NEAR NIPPLE ON NOZZLE END OF LINE. (X)Sep 30, 2000 · Newze FU24954 · Engine Fuel DistributionSDR 20000720SH034Spring · crackedEXHAUST VALVE SPRING RETAINING CAP BROKE IN HALF AND BURNED EXHAUST VALVE. (X)Jun 26, 2000 · Beech 65B80 · Reciprocating Engine Cylinder SectionSDR 98ZZZX2598Stud · failedCYLINDER HOLD DOWN STUD BROKE UNDER NUT. SUSPECT DEFECTIVE STUD.Jun 11, 1998 · N103BA · Beech 65B80 · Reciprocating Engine Power SectionSDR AU970669Crankcase · worn(AUS) CRANKCASE FRETTING IN AREA OF CRANKCASE THROUGH BOLTSJun 16, 1997 · Reciprocating Engine Power SectionSDR AU960896Clamp · faulty(AUS) PROPELLER CLAMP FAULTY - CLAMP APPEARS TO HAVE FORGING FLAW - SUSPECT MANUFACTURING FAULTJun 27, 1996 · Beech 65B80 · Propeller AssemblySDR AU960021Nozzle · failed(AUS) ENGINE OIL SYSTEM CONTAMINATED BY METAL - NO3 CYLINDER OIL SQUIRT NOZZLE MISSING - THE NOZZLE BALL WAS FOUND IN THE CRANKCASE ANDTHE REMAINDER OF THE NOZZLE WAS FOUND IN THE SUMP FOLLOWING REMOVAL - INVESTIGATION FOUND THAT THE NOZZLE HAD BEEN CRUSHED BJan 9, 1996 · Piper PA36285 · Reciprocating Engine Oil SystemSDR 95ZZZX3462Crankcase · crackedWHILE ASSISTING THE OWNER/OPERATOR WITH A PREVENTIVE MAINTENANCE OPERATION, A CRACK WAS DISCOVERED ON THE FRONT SIDE OF THE NR 1 CYLINDER MOUNT PAD AREA. THE CRACK, ALTHOUGH CLEARLY VISIBLE, WAS CONFIRMED WITH DYE PENETRANT. THE CRACK DID NOT APPEAR TO BE LEJun 15, 1995 · N269JW · Piper PA36285 · Reciprocating Engine Power Section
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