Lycoming O-320-H2AD

Service difficulty reports · 326

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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 = 'O320H2AD'
  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 20000622SH036Carburetor · separatedAIRCRAFT ENGINE RAN ROUGH DURING FLIGHT. WAS UNABLE TO SHUT ENGINE DOWN USING MIXTURE CONTROL. FOUND CARBURETOR BOWL SEPARATING FROM CARBURETOR BODY. ALL SCREWS WERE SECURED BY SAFETY TABS AND FACTORY TORQUE SEAL, BUT SCREWS WERE LOOSE. SUBMITTER SUSPECTEApr 4, 2000 · N6212G · Cessna 172N · Fuel Control/Reciprocating EnginesSDR CA000414007Wire · chafed(CAN) DURING CLIMB, THE PILOT NOTICED A BURNING SMELL. THE PILOT TURNED OFF ALL ELECTRICS AND RETURNED FOR LANDING. MAINTENANCE PERSONNEL FOUND THE WIRES TO THE LIGHT DIMMING CIRCUIT WERE SHORTING TO GROUND WHERE THEY HAD CHAFED ON THE CONSOLE STRUCTURE. THE Mar 29, 2000 · Cessna 172N · Light System WiringSDR 20000508SH005Rocker Boss · failedVALVE ROCKER RETAINING STUD, PN 31-16, SHEARED FLUSH WITH THE CYL HEAD SURFACE. THIS CAUSED PARTS TO MOVE AROUND AT RANDOM IN THE HEAD. IT IS SUSPECTED THESE LOOSE PARTS INTERFERRED WITH OPER OF INTAKE VALVE MECHANISM CAUSING THE INTAKE PUSH ROD TO BEND, CREMar 24, 2000 · N75958 · Cessna 172N · Reciprocating Engine Cylinder SectionSDR CA000301029Lifter · chippedNR 1 VALVE LIFTER WAS FOUND CHIPPED(CAN)Feb 22, 2000 · Cessna 172N · Reciprocating Engine Power SectionSDR AU000295Fuel Tank · contaminated(AUS) AIRCRAFT FUEL SYSTEM CONTAMINATED WITH ETHYLENE DIAMINE (EDA).Feb 4, 2000 · Cessna 172N · Fuel StorageSDR CA000301048Crankcase · cracked(CAN) ONE INCH CRACK AT CRANKCASE HALF NEXT TO NR 2 CYLINDER UPPER FRONT HOLD-DOWN STUD.Feb 1, 2000 · Cessna 172N · Reciprocating Engine Power SectionSDR CA000128050Pin · missing(CAN) DURING MAINTENANCE, THE 2 TRIM ACTUATOR SPROCKET RETAINING PINS WERE FOUND MISSING AND LOOSEJan 14, 2000 · Cessna 172N · Elevator Tab Control SystemSDR 99ZZZX4603Line · crackedINVESTIGATED OIL LEAK. FOUND CRANKCASE TO BE CRACKED AT LEFT FRONT OF CASE. CRACK STARTS AT LOWER THROUGH STUD HOLE, RUNS BACK HORIZONTALLY .50 INCH THEN VERTICAL 2.50 INCHES. AIRCRAFT WAS INVOLVED IN A PROPELLER STRIKE 1,330 HOURS AGO. SUSPECT THIS MAY HANov 22, 1999 · N4964G · Cessna 172N · Reciprocating Engine Oil SystemSDR CA991210094Plug · leaking(CAN) FOUND CRANKSHAFT PLUG INSTALLED INCORRECTLY CAUSING LOSS OF OIL.Nov 22, 1999 · Cessna 172N · Reciprocating Engine Power SectionSDR CA991116009Piston Plug · damaged(CAN) METAL FLAKING OFF PISTON PIN PLUG. SIL 1267C ADDRESSES THIS ISSUE. NEW PART 72198.Nov 9, 1999 · Cessna 172N · Reciprocating Engine Cylinder SectionSDR 99ZZZX4096Gear · brokenDISTRIBUTOR GEARS IN MAGNETO BROKE DURING TAKEOFF. RETURNED TO FIELD. NOTIFIED ELECTRO SYSTEMS, INC., OF MAGNETO MALFUNCTION.Oct 8, 1999 · N5624G · Cessna 172N · Magneto/DistributorSDR AU991067Collar · cracked(AUS) LEFT INSTRUMENT PANEL LOCK COLLAR CRACKED.Oct 7, 1999 · Cessna 172N · Instrument PanelSDR CA990927043Transmitter · failed(CAN) INVESTIGATION OF FLUCTUATING/NO FUEL QUANTITY, INDICATIONS REVEALED A SHORTED VARIABLE RESISTOR INSIDE THE TRANSMITTER, CAUSED BY A SUBSTANDARD REPAIR, IN WHICH A SCREW, USED TO REPLACE A RIVET, INTERFERRED WITH THE WIPER ARM.Sep 14, 1999 · Cessna 172N · Fuel Indicating SystemSDR 99ZZZX4061Camshaft · damagedDURING REPAIR OF CYLINDER NR 2, FOUND HYDRAULIC LIFTER OF INLET VALVE CYLINDERS NR 2 AND 1 DAMAGED. SPALLING OF SURFACE RUNNING ON THE CAMSHAFT. CAMSHAFT COVER INLET VALVE CYLINDERS NR 2 AND 1 HAD MATERIAL DAMAGED. ENGINE TSO 118 HOURS.Aug 2, 1999 · N6473D · Cessna 172N · Reciprocating Engine Cylinder SectionSDR 99ZZZX4070Lifter · damagedDURING REPAIR OF CYLINDER NR 2, FOUND HYDRAULIC LIFTER OF INLET VALVE CYLINDERS NR 2 AND 1 DAMAGED. SPALLING OF SURFACE RUNNING ON THE CAMSHAFT. CAMSHAFT COVER INLET VALVE CYLINDERS NR 2 AND 1 HAD MATERIAL DAMAGED. ENGINE TSO 118 HOURS.Aug 2, 1999 · N6473D · Cessna 172N · Reciprocating Engine Cylinder SectionSDR 99ZZZX3276Points · wornAIRCRAFT ENGINE QUIT IN-FLIGHT. MAGNETO CONTACT POINTS CLOSED, CONTACT POINTS WORE DOWN. SUBMITTER SUGGESTED CHECKING CONTACT POINTS EVERY 100 HOURS AND CHECK CAM FOR PITS.Jul 19, 1999 · N739ZY · Cessna 172N · Magneto/DistributorSDR 99ZZZX2987Circlip · failedIN CRUISE FLIGHT 2,400 RPM/10,000 FEET, CIRCLIP FAILED (BECAME DISCONNECTED) ON VALVE LIFTER TAPPET NR 3 CYLINDER ASSEMBLY TAKING THE REST OF THAT CYLINDER'S UPPER VALVE TRAIN WITH IT. A SAFE LANDING WAS MADE TO A ROAD.Jul 12, 1999 · N6694E · Cessna 172N · Reciprocating Engine Cylinder SectionSDR CA990707033Roller · broken(CAN) AFTER LANDING, THE FLAPS WERE SELECTED UP AND WERE SUBSEQUENTLY DAMAGED DUE TO A FAILURE OF THE OUTBOARD ROLLER ASSY.Jun 24, 1999 · Cessna 172N · Trailing Edge Flap Control SystemSDR 99ZZZX2756Carburetor · separatingONE FIRST FLIGHT OF DAY STUDENT PILOT REPORTED ENGINE WOULD NOT IDLE CUT OFF AND WHEN SHUT OFF WITH MAG SWITCH, PROP RAN BACKWARDS. QUESTIONED INSTRUCTOR AND FOUND THAT ENGINE DID NOT IDLE WELL ON THE FLIGHT THE PREVIOUS EVENING WHICH HE ATTRIBUTED TO HOT WEAJun 10, 1999 · N737GV · Cessna 172N · Fuel Control/Reciprocating EnginesSDR 99ZZZX2434Pushrod · brokenAIRCRAFT STARTED RUNNING ROUGH AND LOST POWER. A LANDING WAS MADE WITH MINOR DAMAGE TO AIRCRAFT (RT WHEEL FAIRING). UPON INSPECTION, FOUND NR 2 CYLINDER EXHAUST PUSHROD BROKEN AND INTAKE PUSHROD BENT. (PUSHROD TUBES ALSO BENT). SUBMITTER SUSPECTED EXHAUST Jun 7, 1999 · N5435J · Cessna 172N · Reciprocating Engine Cylinder SectionSDR AU990420006Stud · loose(AU) DURING DOWN WIND LEG, THE ENGINE BEGAN TO RUN ROUGH. A FORCED APPROACH AND LANDING, NR 2 CYLINDER INTAKE PUSH ROD AND TUBE WERE BENT. THE COVER WAS REMOVED AND THE EXHAUST VALVE ROCKER ARM STUD WAS FOUND TO HAVE WORKED LOOSE. THIS ALLOWED THE CAP FROM THApr 14, 1999 · Cessna 172N · Reciprocating Engine Cylinder SectionSDR 99ZZZX2035Bearing · failedDURING ROUTINE MAINTENANCE, THE OIL SCREEN WAS FOUND TO HAVE METAL PARTICLES IN IT. THE ENGINE WAS 200 HOURS AWAY FROM TBO. THE ENGINE WAS TORN DOWN TO DETERMINE THE SOURCE OF METAL. DISCOVERED ONE OF THE MAIN BEARINGS TO THE CRANKSHAFT WAS FLAKING OFF. THApr 5, 1999 · N73764 · Cessna 172N · Reciprocating Engine Power SectionSDR 99ZZZX2292Stud · looseNR 1 CYLINDER INTAKE VALVE ROCKER ARM STUD BACKED OUT OF CYLINDER HEAD.Apr 1, 1999 · N5171K · Cessna 172N · Reciprocating Engine Cylinder SectionSDR CA990907027Carburetor · leaking(CAN) CARBURETOR LEAKING FUEL IN CUT OFF.Mar 26, 1999 · Cessna 172N · Fuel Control/Reciprocating EnginesSDR 99ZZZX1812Transponder · failedFOUND TRANSPONDER TRANSMITTING A CONSTANT A2 CODE IN MODE C. REPLACED DEFECTIVE INTEGRATED CIRCUIT U106 (PN 740190001). NO RECOMMENDATIONS TO PREVENT RECURRENCE.Feb 18, 1999 · N734ST · Cessna 172N · Altimeter, Barometric/EncoderSDR CA990224013Blade · mismanufactured(CAN) PROPELLER BLADE WAS MEASURED AND FOUND TO BE BELOW MINIMUM WIDTH. PROPELLER WAS REMOVED FROM SERVICE.Feb 17, 1999 · Cessna 172N · Propeller Blade SectionSDR CA990301012Bearing · broken(CAN) ONE FLAP ROLLER SEIZED, EVEN THOUGH IT WAS COVERED IN GREASE. THE NEEDLES WERE MESSED UP AND THE BEARING WENT FLAT AS A RESULT.Feb 16, 1999 · Cessna 172N · Trailing Edge Flap Control SystemSDR 99ZZZX938Engine · making metalWHILE C/W AD 80-04-0322 DURING AN ANNUAL INSPECTION, LARGE AMOUNTS OF METAL FLAKES WERE FOUND IN THE OIL FILTER. THE FILTER WAS SENT TO LYCOMING FOR ANALYSIS. AT LYCOMING'S RECOMMENDATION, ENGINE WAS REMOVED FROM SERVICE. METAL WAS DETERMINED TO BE ALUMINUMJan 20, 1999 · N123GJ · Cessna 172N · Engine (Reciprocating)SDR 99ZZZX529Pin · wornEXCESSIVE PIN WEAR IN WALL OF CYLINDER IN 1,541 HOURS TOTAL TIME. ALL FOUR CYLINDERS WERE NEW STEEL CYLINDERS. ENGINE IS O320-H2AD. ENGINE PULLED BECAUSE OF CRACKED CASE.Jan 15, 1999 · Reciprocating Engine Cylinder SectionSDR 99ZZZX367Valve · failedENGINE STOPPED IN-FLIGHT. FOUND NR 4 CYLINDER INTAKE VALVE BROKEN, INTAKE VALVE PART NUMBER UNKNOWN. ENGINE TSMOH: 117.9 HOURS.Dec 21, 1998 · N75709 · Cessna 172N · Reciprocating Engine Cylinder SectionSDR CA980311030Drive Gear · broken(CAN) STARTER DRIVE SHEARED ON START, REPLACED.Nov 2, 1998 · Cessna 172N · Engine StarterSDR CA981006029Seat · broken(CAN) CYLINDER REMOVED DUE TO ROUGH RUNNING ENGINE. INSPECTION FOUND THE UPPER EXHAUST SEAT CRACKED AND BROKEN AND THE EXHAUST VALVE WAS DESTROYED. THE PART NUMBER FOUND ON THE EXHAUST SEAT WAS LW-10076, WHICH, ACCORDING TO SB NR 435 AND AD 80-14-07, SHOULD Sep 25, 1998 · Cessna 172N · Reciprocating Engine Cylinder SectionSDR CA980915011Windshield · cracked(CAN) ON LANDING, WINDSHIELD CRACKED 3.5 INCHES ON LEFT UPPER SIDE. CRACK STOP DRILLED, AND AIRCRAFT FLOWN TO BASE. WINDSHIELD REPLACED.Aug 22, 1998 · Cessna 172N · Flight Compartment WindowsSDR 99ZZZX105Engine · making metalWHILE DOING NIGHT TOUCH-AND-GOES, PILOT REPORTED ENGINE BEGAN TO RUN ROUGH AND 'MISS' AT RPM'S GREATER THAN 1,700. FURTHER INVESTIGATION SHOWED LARGE AMOUNTS OF METAL CONTAMINATION IN FILTERS AND SCREEN. SOME FLAKES WERE AS MUCH AS .25 INCH IN DIAMETER. ENGAug 12, 1998 · N123GJ · Cessna 172N · Engine (Reciprocating)SDR CA980928002Crankshaft · pitted(CAN) TO COMPLY WITH AD 98-02-08, IN ACCORDANCE WITH LYCOMING SERVICE BULLETIN 505B, PITTING WAS NOTED ON THE INTERNAL BORE OF THE CRANKSHAFT. FPI CARRIED OUT, NO CRACKS WERE FOUND.Aug 7, 1998 · Cessna 172N · Reciprocating Engine Power SectionSDR AU980944Rivet · missing(AUS) WING LOWER SPAR CAP HAD NUMEROUS RIVETS MISSING. RIVETS HAVE A CROSS ON THE HEAD POSSIBLY INDICATING MAGNESIUM MANUFACTURE.Aug 5, 1998 · Cessna 172N · Wing SparSDR CA981014012Crankshaft · corroded(CAN) AN ON-WING F.P.I. COMPLETED ON THE CRANKSHAFT BY A SUITABLY RATED AMO FOUND NO CRACKING. THE INNER DIAMETER WAS CLEANED OF CORROSION PER LYCOMING MSB 505B. THE INNER DIAMETER WAS MEASURED WITHIN LIMITS. THE INNER DIAMETER WAS STAMPED PER THE LYCOMING Jul 31, 1998 · Cessna 172N · Reciprocating Engine Power SectionSDR AU980867Camshaft · worn(AUS) CAMSHAFT LOBES WORN EXCESSIVELY DUE TO TAPPET BODY SPALLING.Jul 14, 1998 · Cessna 172N · Reciprocating Engine Power SectionSDR AU980868Tappet · spalled(AUS) TAPPET BODIES SPALLED.Jul 14, 1998 · Cessna 172N · Reciprocating Engine Power SectionSDR AU980913Spar · bent(AUS) RIGHT WING REAR SPAR TOP FLANGE AND SPAR WEB BUCKLED. SUSPECT CAUSED BY A WING TIP STRIKE.Jul 12, 1998 · Cessna 172N · Wing SparSDR 98ZZZX2645Carburetor Bowl · looseDURING FLIGHT, PILOT REPORTED A RATTLING NOISE WHEN THE CARBURETOR HEAT WAS APPLIED. AFTER LANDING, THE ENGINE COULD NOT BE SHUT DOWN USING MIXTURE CONTROL. DURING TROUBLESHOOTING, FOUND THAT CARBURETOR BOWL ATTACHMENT BOLTS HAD COME LOOSE, BUT THE LOCKING TJun 26, 1998 · N738QP · Cessna 172N · Fuel Control/Reciprocating EnginesSDR 98ZZZX2629Contact Assy · defectivePILOTS REPORTED AIRCRAFT WOULD INTERMITTENTLY LOSE POWER. PROBLEM WAS TRACED TO MAGNETO POINTS INADEQUATELY GAPPED. STAPLE WHICH ATTACHES FELT TO NYLON CAM RIDER ON POINTS WAS FOUND TO BE INTERFERRING WITH PROPER OPERATION OF POINTS NOT ALLOWING THEM TO OPENJun 24, 1998 · N4903F · Cessna 172N · Magneto/DistributorSDR CA980706010Transponder · failed(CAN) DURING VFR FLIGHT A BURNING SMELL WAS NOTED FOLLOWED BY SMOKE COMING FROM TRANSPONDER. MASTER SWITCH TURNED OFF AND AFTER TRANSPONDER TURNED OFF THE MASTER SWITCH TURNED ON WITH NO FURTHER PROBLEM. REPLACED.Jun 17, 1998 · Cessna 172N · ATC Transponder SystemSDR CA980610016Crankshaft · corroded(CAN) FOUND CORROSION IN THE AREA (INNER BORE) OF THE CRANKSHAFT, AS SPECIFIED IN FAA AD 98-02-08, NO CRACKS FOUND. REPETITIVE INSPECTION REQUIRED.Jun 4, 1998 · Cessna 172N · Reciprocating Engine Power SectionSDR CA980610017Crankshaft · corroded(CAN) FOUND CORROSION IN THE AREA (INNER BORE) OF THE CRANKSHAFT, AS SPECIFIED IN FAA AD 98-02-08, NO CRACKS FOUND. REPETITIVE INSPECTION IS REQUIRED.Jun 4, 1998 · Cessna 172N · Reciprocating Engine Power SectionSDR CA980706013Crankshaft · corroded(CAN) A VISUAL INSPECTION OF THE INNER DIAMETER OF THE CRANKSHAFT SHOWED VISIBLE CORROSION PITTING (AD 98-02-08 REFERS). AN ON-WING FLUORESCENT PENETRANT INSPECTION (FPI), CARRIED OUT BY A SUITABLY RATED AMO, FOUND NO CRACKS. FURTHER MEASURING OF THE INNER DJun 1, 1998 · Cessna 172N · Reciprocating Engine Power SectionSDR 98ZZZX2125Rocker Arm · failedAIRCRAFT EN ROUTE TO FAIRBANKS, AK. AT CRUISE, ENGINE RAN ROUGH, LOST ALTITUDE, MADE EMERGENCY LANDING ON ROAD. TEAR DOWN OF NR 4 ROCKER BOX SHOWED EXHAUST VALVE, ROCKER ARM BROKEN. TSO: 145 HOURS.May 27, 1998 · N733KE · Cessna 172N · Reciprocating Engine Cylinder SectionSDR 98ZZZX2172Tappet · spalledINSPECTION FOUND SPALLED TAPPET PROBLEM. THE CAMSHAFT WAS IN GOOD SHAPE, BUT DID NEED A REGRIND.May 27, 1998 · N733MU · Cessna 172N · Reciprocating Engine Power SectionSDR 98ZZZX2126Capacitor · defectiveMAGNETO POINTS AND COILS REPLACED ON 500-HOUR INSPECTION. AIRCRAFT MADE FORCED LANDING APPROXIMATELY 3 HOURS LATER. FOUND CAM FOLLOWERS MELTED ON ONE SET AND RESET OTHER SET AND FLEW ACFT BACK TO BASE (APPROX ONE-HALF HOUR). NEW POINTS SHOWED SIGNS OF HEAT May 7, 1998 · N733LW · Cessna 172N · Magneto/DistributorSDR CA980430025Blade · corroded(CAN) DURING OVERHAUL, THE PROPELLER CAMBER FACE IS RESURFACED BY GRINDING. DURING THE GRINDING PROCESS CORROSION WAS FOUND.. THERE WAS EXTRA GRINDING REQUIRED TO REMOVE THE CORROSION. THE PROPELLER CONTINUED IN SERVICE.Apr 21, 1998 · Cessna 172N · Propeller Blade Section
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