Lycoming O-320-E2D

Service difficulty reports · 494

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 = 'O320E2D'
  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 2026FA0000795Magneto · faultedDURING FLIGHT, THE ENGINE EXPERIENCED A SMOOTH PARTIAL LOSS OF POWER WITH AN RPM DECREASE OF APPROX 200–400 RPM. DISCONTINUED THE FLIGHT & MADE AN EMERGENCY LANDING AT AN AIRPORT OTHER THAN THE ACFT’S HOME AIRPORT. THE MAGNETO HAD APPROX 115 HRS OF SERVICE & Sep 7, 2026 · N1416T · Piper PA28140 · Magneto/DistributorSDR 2026FA0000593Impulse Coupling · shearedAIRCRAFT REPORTED TO BE HARD TO START OVER MULTIPLE STARTS. DURING 100HR INSPECTION REMOVED LEFT MAGNETO P/N 4371 AND DISASSEMBLED FOR INSPECTION. DURING INSPECTION OF MAGNETO FOUND 1 PAWL PIN SHEARED FROM IMPULSE COUPLING.Jul 8, 2026 · N5367H · Cessna 172M · Magneto/DistributorSDR 2026FA0000214Bushing Sleeve · migratedFOUND BRONZE PARTICLES IN FULL FLOW FILTER AT INSPECTION. TRACED TO MIGRATING CONNECTING ROD BUSHINGS ON ALL 4 RODSMar 25, 2026 · N1470 · Cessna 172M · Reciprocating Engine Power SectionSDR 2026FA0000209Pump · mismanufacturedRECEIVED TWO NEW DIAPHRAGM-TYPE ENGINE DRIVEN FUEL PUMPS, P/N AF-15472 WITH SERIAL NUMBERS 1PX120 AND 1PRN03, THE POROSITY OF THESE CASTED FUEL PUMPS IS POOR, NOR DID THE MACHINING CLEAN UP THE MACHINED SURFACES. BOTH PUMPS WERE VISUALLY INSPECTED AND REJECTEDMar 24, 2026 · Fuel Boost PumpSDR 2025FA0000096Throttle Control · looseACFT RETURNED TO BASE DUE TO VIBRATION AT 300FT ON 2/8/25. PILOT REPORTED ENGINE STARTED SHAKING SIGNIFICANTLY. HE PULLED CARB HEAT HOT SAW NO CHANGE. TOLD TOWER HE WAS LANDING. CARB HEAT SYSTEM WAS INSPECTED WITH NO DEFECTS FOUND. CARB WAS REPLACED. CARBFeb 8, 2025 · N73454 · Cessna 172M · Fuel Control/Reciprocating EnginesSDR 2024FA0000965Bracket · brokenBRACKET THAT HOLDS LOWER WING SKIN BY INBOARD FLAP TRACK RIB BROKE AND WEDGED INTO FLAP TRACK ROLLER CAUSING FLAPS NOT TO RETRACTDec 16, 2024 · N19629 · Cessna 172L · Wing, Attach FittingsSDR 2024FA0000599Case Half · wornREMOVED AND REPLACED RH MAGNETO DUE TO 500 HOUR OVERHAUL LIMIT. NEW MAGNETO INSTALLED FOR 78.2 HOURS BEFORE A FLIGHT WAS CANCELLED DUE TO EXCESSIVE VIBRATION AND HIGH MAG DROP ON RH SIDE AT PRE-RUN. ATTEMPTED TO TIME RH MAGNETO TO ENGINE. POINTS APPEARED TO OPAug 13, 2024 · N20565 · Cessna 172M · Magneto/DistributorSDR 2024FA0000258Crankshaft · crackedTOTAL INTERNAL CRANKSHAFT FAILURE AT CHEEK BETWEEN #3 AND #4 CONNECTING ROD JOURNALS CAUSING CRANKCASE TO COMPLETELY SEPARATE IN THE CENTER. CRACK APPEARS TO HAVE STARTED IN THE REAR THRUST RADIUS OF #3 CONNECTING ROD JOURNAL. PILOT HAD REPORTED ENGINE ROUMar 26, 2024 · N70392 · Cessna 172M · Engine (Reciprocating)SDR 2023FA0000066Crankshaft · corrodedSIGNIFICANT CORROSION WAS FOUND ON THE INTERIOR OF THE CRANKSHAFT NEAR THE PROPELLER FLANGE, JUST BEHIND THE SHAFT PLUG. THIS AREA IS REGULARLY INSPECTED IF THE ENGINE IS RATED FOR 160HP PER AD 98-02-08. SINCE THIS AIRCRAFT IS ONLY RATED FOR 150HP IT IS NOT REFeb 6, 2023 · N20093 · Cessna 172M · Engine (Reciprocating)SDR 2021FA0000177Wire · burnedHOT WIRE FOR OIL PRESSURE AND TEMPERATURE GAUGE INST P/N OTP200K S/N ASL01103- BURNT ABOUT A 2FT SECTION OF MFG SUPPLIED WIRE- REMOVED OLD WIRE AND INSTALLED NEW WIRE 2FT P/N AT19118AWG - SOLDER WIRES TOGETHER AND HEAT SHRUNK ENTIRE WIREJun 14, 2021 · N35672 · Cessna 172I · Engine Oil System WiringSDR CA190731031Lock Nut · undertorqued(CAN) CREAKING NOISE REPORTED FROM TAIL OF AIRCRAFT. MAINTENANCE NOTED THAT THE TORQUE ON THE NAS679 LOCK NUTS AS USED BY CESSNA ON THE HORIZONTAL STABILIZER WERE LOOSE. THE NAS679A3 NUTS WERE PART OF A RECALL FROM CESSNA SE69-28, BUT ONLY IN THE -3 SIZE. THE Jul 31, 2019 · Cessna 172M · Horizontal Stabilizer StructureSDR CA190731029Circuit Breaker · failed(CAN) THE AVIONICS WERE REPORTED TO BE UNSERVICEABLE. THE AVIONICS MASTER CIRCUIT BREAKER SWITCH WAS FOUND TO BE IN A `NEUTRAL` POSITION AND WHEN POSITIONED TO THE ON POSITION THE AVIONICS WORKED. IT WAS DETERMINED THAT DURING ENGINE OPERATION THE VIBRATION WAJul 22, 2019 · Cessna 172M · Electrical Power SystemSDR CA190618012Structure · failed(CAN) C XXXX FLAP RETRACTION INCIDENT REPORT 14 JUNE 2019 OCCURRENCE DATE: 12 JUNE 2019 CALLED TO EXAMINE AIRCRAFT AS PARKED ON TAXIWAY IN FRONT OF HANGAR FOLLOWING AN INCIDENT WHERE THE FLAPS FAILED TO RETRACT IN THE GO-AROUND DURING CIRCUITS. FOUND RIGHT HANJun 13, 2019 · Cessna 172M · Trailing Edge FlapsSDR CA190325012Magneto · malfunctioned(CAN) WHILE PERFORMING PRE-FLIGHT ENGINE RUN UP, WHEN RIGHT MAGNETO WAS SELECTED, THE ENGINE BEGAN TO RUN VERY ROUGH ALMOST TO THE POINT OF STOPPING. THE AIRCRAFT RETURNED TO THE HANGAR AND THE FLIGHT WAS CANCELLED. DECIDED TO REMOVE BOTH MAGNETOS AND INSTALL Mar 21, 2019 · Cessna 172M · Magneto/DistributorSDR CA190325013Magneto · malfunctioned(CAN) WHILE PERFORMING PRE-FLIGHT ENGINE RUN UP, WHEN RIGHT MAGNETO WAS SELECTED, THE ENGINE BEGAN TO RUN VERY ROUGH ALMOST TO THE POINT OF STOPPING. THE AIRCRAFT RETURNED TO THE HANGAR AND THE FLIGHT WAS CANCELLED.Mar 21, 2019 · Cessna 172M · Magneto/DistributorSDR CA180925011Impulse Coupling · loose(CAN) DURING FIRST 500 HOUR INSPECTION ON THE MAGNETO THE RIVETS ON THE IMPULSE COUPLING WERE FOUND TO BE LOOSE. THE MANUFACTURER WAS CONTACTED AND THE IMPULSE COUPLING WAS REPLACED. (TC# 20180925011)Sep 21, 2018 · Cessna 172M · Magneto/DistributorSDR K2ZA2018091200001Bracket · damagedAFTER LANDING, DURING FLAP RETRACTION, A LOUD POP WAS HEARD BY BOTH PEOPLE ABOARD. DURING POST FLIGHT IT WAS FOUND RT FLAP HAD BOUND ON BRACKET PN 0523231-5 DURING RETRACTION CAUSING DAMAGE TO FLAP, BRACKET, AND FLAP TRACK BRACKET. CRACKS FOUND IN THE LOWER ELSep 9, 2018 · N7577G · Cessna 172L · Trailing Edge FlapsSDR CA180706013Battery · corroded(CAN) ELT REMOTE CONTROL PANEL INDICATOR (RCPI) TEST SWITCH WAS ACTIVATED. NO AUDIO OR VISUAL INDICATION APPEARED. ELT AUDIO ALERT INDICATOR P/N E-04.7 WAS REMOVED FROM AIRCRAFT AND OPENED TO CHECK BATTERY. BATTERY APPEARED TO HAVE LEAKED CAUSING SEVERE CORRJul 5, 2018 · Cessna 172L · Emergency Locator BeaconSDR CA180706014Contactor · corroded(CAN) AIRCRAFT REPORTED TO HAVE INTERMITTENT ELECTRICAL ISSUES. TURNING MASTER SWITCH ON WOULD NOT ALWAYS POWER UP A/C. SOMETIMES A/C WOULD POWER UP AND AS SOON AS STARTER WAS ACTIVATED EVERYTHING WOULD POWER DOWN. SOMETIMES A/C WOULD NOT POWER UP AND AFTERJul 5, 2018 · Cessna 172L · Battery/Charger SystemSDR 2017FA0000491Connecting Rod · misinstalledDURING INSPECTION OF CONNECTING RODS FOR AD2017-16-11, MSB 632B, AN CONNECTING ROD BOLT WAS FOUND WITH INSUFFICIENT THREADS TO HOLD THE CONNECTING ROD TOGETHER.Sep 14, 2017 · N3TN · Cessna 172M · Reciprocating Engine Power SectionSDR 2017FA0000347G Switch · no testELT FAILED TEST OF THE INTERNAL G-WITCH. ELT WOULD NOT SWITCH FROM STANDBY TO ACTIVATE DURING TEST. OPERATIONAL CHECK OF ELT IN ON POSITION GOOD.Aug 4, 2017 · N1955V · Cessna 172M · Emergency Locator BeaconSDR 2016FA0000329Butterfly Valve · tornPILOT REPORTED LOSS OF RPM DURING TAKEOFF, DURING TROUBLESHOOTING IT WAS DISCOVERED RPM WOULD RETURN WHEN THE MIXTURE CONTROL WAS LEANED, INDICATING A RICH MIXTURE CONDITION. DURING A VISUAL INSPECTION OF THE INDUCTION SYSTEM (I.E. AIRBOX AND CARBURETOR) A PIEJul 13, 2016 · N20357 · Cessna 172M · Engine Air Intake SystemSDR X0US2016FA0000207Mount · damagedDURING ANNUAL INSPECTION, FOUND ENGINE MOUNT RT LOWER DIAGONAL TUBING HAS CHAFE DAMAGE DUE TO CONTACT WITH CARB HEAT CABLE.May 4, 2016 · N9735V · Cessna 172M · Engine Mount SectionSDR X0US2016FA0000170Mount · damagedDURING ANNUAL INSPECTION, FOUND ENGINE MOUNT TUBING HAD CHAFE DAMAGE DUE TO IMPROPERLY ROUTED THROTTLE CABLE.Apr 11, 2016 · N5110Q · Cessna 172M · Engine Mount SectionSDR CA160221001Control Cable · frayed(CAN) FOUND RT FORWARD RUDDER CABLE FRAYED AT FORWARD PULLEY. NORMAL WEAR.Feb 18, 2016 · Cessna 172M · Rudder Control SystemSDR CA160221002Control Cable · frayed(CAN) RT FORWARD RUDDER CABLE FRAYED AT PULLEY.Feb 18, 2016 · Cessna 172M · Rudder Control SystemSDR CA160201010Wire · burned(CAN) WIRE PROVIDES POWER TO THE BEACON LIGHT ON THE VERTICAL SECTION. WIRE SECTION BETWEEN SWITCH AND CONNECTOR HAD BEEN REPAIRED WITH A BUTT CONNECTOR. WIRE LENGTH IS ABOUT 7". WIRE OVERHEATED AND CHARRED THE INSULATION. WIRING IS ORIGINAL WITH OVER 7,00Jan 29, 2016 · Cessna 172M · Light System WiringSDR CA160125012Rudder Pedal · damaged(CAN) THE ACFT WAS UNDERGOING A SCHEDULED INSPECTION AND IT WAS IDENTIFIED THAT THE PILOT RUDDER PEDALS HAD SOME BRACKETS BOLTED TO ONE END OF THE PEDALS THAT ARE THEN ATTACHED TO THE MASTER CYLINDERS. IT APPEARS A PREVIOUS MAINTENANCE CONTRACTOR HAD CUT OFF Jan 20, 2016 · Cessna 172M · Rudder Control SystemSDR CA151019001Wire · wrong part(CAN) AIRCRAFT CAME IN WITH THE CIGAR LIGHTER NOT FUNCTIONING. DURING TROUBLESHOOTING, THE OLD RESETABLE FUSE WAS STILL ON BACK OF CIGAR LIGHTER. WIRE WAS BETWEEN OLD FUSE AND CIGAR LIGHTER. LOOKED UP AND FOUND A SMALL "HOT" WIRE STILL CONNECTED TO THE AMMETEROct 16, 2015 · Cessna 172L · Electrical Power System WiringSDR CA150715002Distributor Gear · broken(CAN) DURING MAG CHECKS DURING GROUND RUN PRIOR TO FLIGHT THE ENGINE QUIT WHEN SELECTED TO THE RT MAG. THE MAG WAS REMOVED, DISASSEMBLED AND THE METAL TAB ON THE DISTRIBUTOR GEAR WAS FOUND BROKEN OFF AND LOCATED WITHIN THE MAGNETO. THIS MAGNETO FALLS UNDER SJul 15, 2015 · Cessna 172M · Magneto/DistributorSDR CA150420002Screw · loose(CAN) DURING INSPECTION IAW SB 366B AND SEB 07-11, CARBURETOR THROTTLE BODY SCREWS WERE FOUND TO BE LOOSE.Apr 20, 2015 · Cessna 172M · Fuel Control/Reciprocating EnginesSDR CA150415008Pulley · worn(CAN) MAX RT RUDDER PRESSURE NEEDED TO MAINTAIN STRAIGHT LEVEL FLIGHT. INSPECTION OF RUDDER CONTROL SYSTEM CARRIED OUT, FOUND RT RUDDER CABLE OUT OF FWD PULLEY. CABLE INSPECTED AND NO DAMAGE FOUND. PULLEY, PN MCS378-4 REPLACED AND RUDDER CONTROL SYSTEM FUNCApr 14, 2015 · Cessna 172K · Rudder Control SystemSDR CA150408037Intercom · defective(CAN) SQUELCH KNOB ON INTERCOM WAS NOT ADJUSTING SQUELCH SO THAT PILOT COULD ALWAYS HEAR ENGINE NOISE OVER HEADSET. REMOVED & REPLACED INTERCOM WITH SAME PN UNIT FROM ANOTHER PLANE. FUNCTION TESTED SATISFACTORY & RELEASED BACK TO SERVICE.Apr 8, 2015 · Cessna 172L · Interphone/Passenger Announcement (PA) SystemSDR CA141113005Control Cable · frayed(CAN) CABLE FRAYED AT PULLEY.Nov 7, 2014 · Cessna 172M · Rudder Control SystemSDR CA141024018Shroud · broken(CAN) THE SHROUD WAS INSTALLED NEW, 98 HOURS PREVIOUS. BOTH THE BOTTOM CLAMP TABS HAD BROKEN OFF. EXAMINATION SUGGESTED THAT SHARP, BURRED EDGES AND SMALL DENTS AND DEFORMITIES LEFT BY THE FORMING PROCESSES MAY HAVE CONTRIBUTED TO STRESS CRACKING. THE PART IOct 20, 2014 · Cessna 172M · Engine Exhaust SystemSDR CA141014017Wheel · cracked(CAN) AT LEAST FOUR CRACKS DISCOVERED IN WHEEL RIM, ALL AT DUST COVER ATTACH CUT OUTS.Oct 14, 2014 · Cessna 172M · Wheel/Ski/FloatSDR CA140930006Carburetor · malfunctioned(CAN) DURING A ROUTINE 200 HOUR INSPECTION OF THE AIRCRAFT, MAINTENANCE CREW FOUND A SMALL METAL TUBE LAYING INSIDE THE INDUCTION AIR BOX. FURTHER INVESTIGATION DETERMINED THE TUBE TO BE THE BRASS INJECTOR FOR THE ACCELERATOR PUMP SYSTEM. THE TUBE IS NORMALLY Sep 19, 2014 · Cessna 172M · Fuel Control/Reciprocating EnginesSDR CA150319007Camshaft · worn(CAN) DURING A 100 HR INSPECTION, CYLINDER NR 4 DIFFERENTIALS WERE FOUND SATISFACTORY LIMITS. UPON FURTHER INSPECTION AFTER REMOVAL OF THE NR 4 CYLINDER, NR 4 INTAKE AND NR 3 EXHAUST LOBE ON CAMSHAFT DISPLAYED SIGNS OF PREMATURE WEAR. ENGINE WAS THEN REMOVEDAug 15, 2014 · Cessna 172M · Reciprocating Engine Power SectionSDR CA140813001Power Lever · damaged(CAN) ON A LOCAL FLIGHT, DECLARED AN EMERGENCY DUE TO A STUCK THROTTLE. THE AIRCRAFT LANDED WITHOUT INCIDENT. AFTER THE AIRCRAFT WAS HANDED OVER TO MAINTENANCE AN INSPECTION WAS CARRIED OUT AND IT WAS FOUND THAT THE THROTTLE LINKAGE WAS BINDING ON THE DUCT TAug 8, 2014 · Cessna 172M · Power LeverSDR CA140811010Riser · broken(CAN) NR 3 EXHAUST RISER BROKEN OFF AT WELDED JOINT WHERE FLANGE CONNECTS TO CYLINDER HEAD, CAUSING OIL OVERTEMP CONDITION IN FLIGHT.Aug 6, 2014 · Cessna 172M · Engine Exhaust SystemSDR CA140811012Bulkhead · cracked(CAN) DURING INSPECTION NR 1 CRACKS WERE FOUND IN THE LOWER CORNER PORTIONS, L&R ,OF THE BULKHEAD AFT OF THE BAGGAGE DOOR AT STATION 108 CRACKS WERE AROUND THE LIGHTENING HOLES.Jun 25, 2014 · Cessna 172M · Fuselage Main, BulkheadSDR CA140612002Valve · stuck(CAN) EXHAUST VALVE STUCK OPEN. CYLINDER REMOVED AND REPAIRED IN ENGINE REPAIR FACILITY. REMAINING 3 CYLINDER EXHAUST VALVES CLEANED THROUGH EXHAUST PORT ACCESS. TO BE DETERMINED WHETHER VALVES NEED TO BE REMOVED TO HONE EXHAUST VALVE GUIDE.Jun 10, 2014 · Cessna 172M · Reciprocating Engine Cylinder SectionSDR CA140516005Control Cable · frayed(CAN) PRE-FLIGHT INSPECTION DETECTED A GRINDING NOISE IN ELEVATOR. AMO INSPECTION DISCOVERED CABLE FRAYED AT THE BAGGAGE BULKHEAD PULLEY. CABLE REPLACED. UNABLE TO ASCERTAIN HOURS AT THIS TIME, LOCATION CHANGE, BUT ASSUME ORIGINAL PART-19, 778 HOURS.May 15, 2014 · Cessna 172M · Elevator Control SystemSDR CA140922005Electrical Sys · malfunctioned(CAN) ON A LOCAL FLIGHT CALLED ON THE OUTSIDE LINE TO ADVISE HE HAD A COMMUNICATION FAILURE OVER. INBOUND TO THE FIELD AIRCRAFT WAS CLEARED TO LEFT DOWNWIND FOR RUNWAY 31. CALLED BACK WHEN THE AIRCRAFT WAS ON LEFT DOWNWIND. THE AIRCRAFT WAS CLEARED TO LAND. TApr 7, 2014 · Cessna 172M · DC Generating SystemSDR CA140107007Spar · cracked(CAN) CRACKED SPAR NOTICED DURING UNSCHEDULED MAINTENANCE ON BEACON LIGHT. REPAIRED AS FOLLOWS: HORIZONTAL STABILIZER, PN 0532001-202 CENTER SKIN REMOVED, FORWARD CENTER SPAR REPAIRED AS FOLLOWS, ALL MATERIAL USED IS 2024 T3. FILLER AND DOUBLER MADE FROM .040,Dec 31, 2013 · Cessna 172M · Horizontal Stabilizer, Spar/RibSDR CA131128002Bolt · cracked(CAN) UPON REMOVAL OF THE LT AND RT MLG SPRING STEEL GEAR LEGS FOR INSPECTION PURPOSES. THE INBD ATTACH BOLTS,1 PER SIDE, S21381 OR ALT NR S3461-108 WAS FOUND TO BE CRACKED. UPON REINSTALLATION OF THE GEAR LEGS THE BOLTS IN QUESTION BOLTS WERE REPLACED NEW.Nov 28, 2013 · Cessna 172M · Main Landing GearSDR CA131128003Bolt · cracked(CAN) UPON REMOVAL OF THE RT MLG SPRING STEEL GEAR LEGS FOR INSPECTION PURPOSES. THE INBD ATTACH BOLT S21381 OR ALT NR S3461-108 WAS FOUND TO BE CRACKED ACROSS THE DIAMETER OF THE BOLT. UPON REINSTALLATION OF THE GEAR LEG THE BOLT IN QUESTION WAS REPLACED NENov 19, 2013 · Cessna 172M · Main Landing GearSDR CA131114007Wheel · bent(CAN) UP ON ROUTINE INSPECTION OF NOSE WHEEL, IT WAS NOTED THAT BOTH WHEEL HALVES IN THE AREA WHERE THE STEEL TABS ARE BENT TO HOUSE THE DUST COVER, HUB CAP, WERE CRACKED IN 8 OF THE 12 RADII.Nov 12, 2013 · Cessna 172M · Wheel/Ski/FloatSDR CA131018010Bulkhead · cracked(CAN) UPON ACFT INSPECTION THE SPINNER WAS REMOVED TO DO A VISUAL INSPECTION OF THE PROPELLER MOUNTING BOLTS AND SPINNER BULKHEADS, FORWARD AND AFT. THE FORWARD SPINNER BULKHEAD PN 0550321-4 WAS OBSERVED TO HAVE 2 CRACKS PRESENT AROUND THE HOLES FOR THE MOUNTSep 25, 2013 · Cessna 172M · Propeller Spinner SectionSDR CA131023009Structure · cracked(CAN) LOWER TUBE OF CONTROL TEE ASSY FOUND CRACKED ABOVE LOWER BEARING IN AREA OF TUBE CRIMPING . CRACKED IN 2 LOCATIONS, FORE AND AFT STARTING IN MFG WELD EXTENDING UP INTO TUBE APPROXIMATELY .7500". SUSPECT WATER FREEZING IN TUBE. CORROSION INSPECTION IN Sep 20, 2013 · Cessna 172M · Control Column Section
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