Lycoming O-320-H2AD

Service difficulty reports · 326

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 = '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 CA060509002Switch · defective(CAN) PILOT WAS IN CRUISE WITH LANDING LIGHT ON, WHEN SHE SMELLED SMOKE AND NOTICED SMOKE COMING FROM LANDING LIGHT SWITCH. SMOKE STOPPED WHEN SWITCH TURNED OFF AND PILOT SQUAWKED 7700 FOR HELP AND SHE WAS ADVISED TO LAND. AGAIN IT WAS CONFIRMED THAT THE SWITCApr 28, 2006 · Cessna 172N · Exterior LightingSDR CA060406001Relay · defectiveRELAY IS USED TO POWER THE RADIO-NAVIGATION SYSTEM. ON A TRAINING FLIGHT INSTRUMENT APPROACH, SMOKE WAS NOTICED UNDER THE INSTRUMENT PANEL. THE APPROACH WAS ABORTED AND THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE PERSONNEL CARRIED OUT A DETAILED INSPECMar 29, 2006 · Cessna 172N · UHF Communications SystemSDR 2006FA0000241Harness · mismanufacturedTHE AIRCRAFT HAD MAGNETO LEADS THAT NEEDED TO BE REPLACED. A NEW HARNESS SET WAS RECEIVED AND WAS INSTALLED ON THE ENGINE. THE ENGINE RAN POORLY. FOUND (T-4). ALSO NOTED THAT THE SHIELD ON NR 1 BOTTOM WIRE HAD BEEN CUT DURING MANUFACTURER AND THE SHIELD WAMar 13, 2006 · N5228E · Cessna 172N · Ignition Harness (Distribution)SDR 2006FA0000061Drive Assy · failed(.7500) OF THE DRIVE TEETH ON THE BENDIX DRIVE WERE COMPLETELY SHEARED DURING AN ENGINE START-UP. NO PROBABLE CAUSE OR RECOMMENDATIONS TO MAKE. (K)Dec 21, 2005 · N75716 · Cessna 172N · Engine StarterSDR 2005FA0001581Bearing · looseAIRCRAFT CAME IN FOR AN OIL CHANGE, OWNER NOTICED BENDIX DRIVE SHAFT BEARING LYING IN THE COWLING. STARTER WAS O/H. THE BEARING WAS A SLIP FIT TO THE HOUSING. I WOULD RECOMMEND BETTER TOLERANCE CONTROL AT OVERHAUL, AND REMIND ALL MECHANICS TO PERFORM SOME SDec 15, 2005 · N73827 · Cessna 172N · Engine StarterSDR CA051125006Wire · shorted(CAN) MAIN BATTERY WIRE AT ALTERNATOR, SHORTED TO GROUND AT FRONT BAFFLE, THEREFORE CAUSING CIRCUIT BREAKER TO TRIP. ACU WAS ALSO DAMAGED DUE TO SHORT.Nov 23, 2005 · Cessna 172N · Electrical Power System WiringSDR CA060321010Control Cable · worn(CAN) THIS REPORT HAS BEEN RESUBMITTED. THE INTERNAL PART OF THE BOUDEN CABLE WAS FOUND TO BE EXCESSIVELY WORN DURING INSPECTION. SEE ATTACHED PHOTO (TC NR 20060321010)Sep 20, 2005 · Cessna 172N · Fuel Control/Reciprocating EnginesSDR 2005FA0000727Lifter · spalledLIFTERS SPALLED ON 5/7/2005, BUT NO DAMAGE TO THE CAMSHAFT AT THAT TIME. 2/16/2005 LIFTERS SPALLED AGAIN CAUSING THE CAMSHAFT TO NEED REPLACEMENT. (K)May 1, 2005 · N733ZK · Cessna 172N · Reciprocating Engine Power SectionSDR CA050427009Points · wornROUTINE INSP REVEALED MAGNETO TO ENGINE TIMING WAS OFF BY ABOUT 4 OR 5 DEGREES. MAGNETO REMOVED TO CHECK POINTS. POINTS JUST BARELY OPENING, NORMAL POINT GAP 0.016'. PLASTIC/NYLON HEEL THAT RIDES ON MAGNETO CAM WORN DOWN.Apr 8, 2005 · Cessna 172N · Magneto/DistributorSDR 2005FA0000519Piston · brokenDURING A 100 HR INSPECTION, FOUND A SMALL PIECE OF METAL IN THE SUCTION SCREEN. NO METAL WAS FOUND IN THE FILTER, INSPECTED PIECE AND DETERMINED TO BE FROM A PISTON, REMOVED OIL SUMP AND FOUND SEVERAL MORE PIECES, LOOKED INTO CASE. FOUND THE SKIRT OF NR 3 PIApr 5, 2005 · Reciprocating Engine Power SectionSDR CA050304003Door Frame · cracked(CAN) WHEN COMPLYING WITH MFG REPETIVE SEB 03-5, A 2 INCH CRACK WAS DISCOVERED IN THE AREA OF THE LT LOWER DOOR HINGE ATTACH POINT ON THE DOOR POST. INSTALLED SERVICE KIT SK172-154TO REPAIR THE CRACK. NO INDICATIONS OF CRACKS ON THE RT SIDE.Mar 2, 2005 · Cessna 172N · Fuselage Main, StructureSDR CA050223011Lifter · spalled(CAN) DURING PROGRESSIVE CARE OPERATION NR2 ON INSPECTION OF OIL SUMP SCREEN FOUND LARGE METALLIC FERROUS PARTICLES. ENGINE ON FURTHER INVESTIGATION, IT WAS FOUND THAT ALL LIFTERS (INTAKE AND EXHAUST) WERE BADLY SPALLED, ALONG WITH SPALLED AND WORN CAM LOBES. Feb 22, 2005 · Cessna 172N · Reciprocating Engine Power SectionSDR CA050223010Lifter · spalled(CAN) INSPECTION OF OIL SUMP SCREEN FOUND LARGE METALLIC FERROUS PARTICLES. ENG TTSN 1738.0. IT WAS FOUND THAT LIFTERS WERE BADLY SPALLED (CYL NR1, INTAKE SPALLED, CYL NR2 BOTH GOOD, CYL NR3, INT AND EX SPALLED, CYL NR4, INTAKE SPALLED) ALONG WITH SPALLED ANFeb 10, 2005 · Cessna 172N · Reciprocating Engine Power SectionSDR CA041215004Tachometer · leaking(CAN) TACHOMETER WAS FULL OF OIL. TACH SHAFT SEAL LW14260 AND TACHOMETER REPLACED. TACHOMETER P/N D1-112-5025S/N 17488Nov 16, 2004 · Cessna 172N · Engine RPM Indicating SystemSDR 2004FA0000786Bearing · overheatedDURING FLIGHT, ENGINE BEGAN TO LOOSE POWER, AND AIRCRAFT EXPERIENCED AN OFF-FIELD LANDING. UPON INVESTIGATION INTO THE FAULT, IT WAS DISCOVERED THAT THE MAGNETO BREAKER POINTS WERE NOT OPENING. DISASSEMBLY OF THE MAGNETO REVEALED THAT BEARING PN 1038297 INSTAug 16, 2004 · N2246E · Cessna 172N · Magneto/DistributorSDR 2004FA0000636Engine · making metalFACTORY OVERHAUL FOUND FERROUS METAL FLAKES (SEVERAL HUNDRED) IN OIL FILTER. ENGINE REMOVED AND RETURNED TO MFG.Aug 11, 2004 · N75704 · Cessna 172N · Engine (Reciprocating)SDR CA040823007Magneto · migrated(CAN) ATTACH NUTS ON CLAMP BLOCK WERE TIGHT. MAGNETO ROTATED TO CAUSE RPM DROP. THE MAGNETO HAD 386.6 HOURS SINCE LAST REMOVAL.Aug 10, 2004 · Cessna 172N · Magneto/DistributorSDR CA040809005Rod End · worn(CAN) ON GROUND ROLL, THE PILOT WAS UNABLE TO TURN THE AIRCRAFT TO THE RT. AFTER INSPECTION OF THE STEERING SYSTEM, DISCOVERED A STEERING ARM DISCONNECTED IN LOCATION OF THE PEDALS. THE ROD END THAT ATTACHES TO THE PEDALS WAS WORN, WHICH CAUSED THE STEERING ARAug 2, 2004 · Cessna 172N · Steering UnitSDR 2004FA0000602Stud · looseNR 3 CYLINDER INTAKE VALVE ROCKER ARM STUD BACKED OUT CAUSING PUSHROD TO BEND AND HYDRAULIC LIFTER FAILURE.Jul 26, 2004 · N7610F · Cessna 172N · Reciprocating Engine Cylinder SectionSDR 2004FA0000683Exhaust Valve · stuckAIRCRAFT EXPERIENCED POWER LOSS DURING CLIMBOUT. AIRCRAFT CIRCLED AND LANDED AND DEPARTED END OF RUNWAY, ROLLED OUT THRU RUNWAY LIGHTS. PROPELLER STRIKE OF ONE LIGHT. FOUND NR 2 CYLINDER EXHAUST VALVE STUCK AND VALVE GUIDE LOOSE . FURTHER INSPECTION ALSO FJul 6, 2004 · N738FZ · Cessna 172N · Reciprocating Engine Cylinder SectionSDR 2004FA0000553Dipstick · destroyedPILOT CHKD OIL DURING PREFLIGHT, REINSERTED DIPSTICK, TURNED C/W UNTIL SNUG. INSTRUCTOR PILOT CHECKED DIPSTICK AND FOUND SNUG. AFTER T/O OIL BEGAN STREAMING FROM COWL. PILOT RETURNED TO BASE AND MADE UNEVENTFUL LANDING. AMT OPENED COWL AND FOUND THAT DIPSTICKJul 1, 2004 · N733RL · Cessna 172N · Reciprocating Engine Oil SystemSDR 2004FA0000745Air Box · damagedDURING RUN-UP, BEFORE DEPARTURE, THE CARBURETOR HEAT WAS CHECKED AT 1000 AND 1700 RPM WITH ABOUT 75 RPM DROP. DURING THE FLIGHT BACK, IN CRUISE FLIGHT, THE CARB HEAT WAS CHECKED AGAIN AT VARIOUS POWER SETTINGS, WORKING NORMALLY WITH ABOUT A 100 RPM DROP. AFTApr 24, 2004 · N5048E · Cessna 172N · Engine Air Intake SystemSDR CA040426007Wire · burned(CAN) WHILE IN CRUISE FLIGHT, THE ALTERNATOR FIELD CIRCUIT BREAKER POPPED. THE PILOT PUSHED IN THE BREAKER SEVERAL TIMES UNTIL THE BREAKER STAYED IN. SMOKE THEN APPEARED AND THE PILOT LANDED SAFELY. THE MAIN POWER WIRE AT THE BACK OF THE ALTERNATOR WAS FOUND WApr 2, 2004 · Cessna 172N · Electrical Power System WiringSDR AUS20040073Arm · corroded(AUS) FLAP SUPPORT ARM TO FLAP SUPPORT ARM RIB RIVETS MISSING DUE TO CORROSION.Feb 10, 2004 · Cessna 172N · Trailing Edge FlapsSDR 2004FA0000223Lifter · wornDURING A ROUTINE OIL CHANGE, WHILE COMPLYING WITH AD. MINUTE METAL PARTICLES WERE FOUND IN THE OIL FILTER WHEN IT WAS CUT OPEN FOR INSPECTION. HYDRAULIC LIFTERS WERE REMOVED FOR A MORE DETAILED INSP. THE ONE CAM LOBE FOR NR 3 AND NR 4 CYLINDERS HAD PLATING Jan 30, 2004 · N73827 · Cessna 172N · Reciprocating Engine Power SectionSDR AUS20031324Alternator · faulty(AUS) ALTERNATOR SUSPECT FAULTY. ALTERNATOR BENCH TESTED OK, BUT REPLACED DUE TO HIGH HOURS. FAULT HAS NOT REOCCURRED SINCE.Dec 18, 2003 · Cessna 172N · DC Generator-AlternatorSDR AUS20031302Brush Block · worn(AUS) ALTERNATOR GROUND BRUSH COMPLETELY WORN AWAY. SLIP RING DAMAGED BY WORN BRUSH.Dec 8, 2003 · Cessna 172N · DC Generator-AlternatorSDR AUS20031163Tappet · cracked(AUS) HYDRAULIC LIFTERS (2 OFF) CRACKED. TAPPETS WERE NEW ITEMS.Nov 14, 2003 · Reciprocating Engine Power SectionSDR AUS20031144Tappet · cracked(AUS) TAPPET INNER BODIES CRACKED (8OFF).Nov 7, 2003 · Cessna 172N · Reciprocating Engine Power SectionSDR AUS20031145Tappet · cracked(AUS) TAPPET INNER BODIES CRACKED (8OFF).Nov 6, 2003 · Cessna 172N · Reciprocating Engine Power SectionSDR CA031114005Thru Bolt · leaking(CAN) SMOKE IN CABIN. OIL LEAK ON FRONT OF ENGINE, LEADKED OIL DOWN BAFFLE TO HEAT MUFF INLET. OIL DRIPPED INSIDE HOT MUFFLER CREATING SMOKE. 2 FORWARD CRANK CASE THROUGH BOLTS FOUND LEAKING. REPAIRS ARE NOT COMPLETED YET, 4 NOV. 03.Nov 4, 2003 · Cessna 172N · Reciprocating Engine Power SectionSDR 2003FA0001203Volt Regulator · burnedA/C ARRIVED AT SHOP AFTER EXPERIENCING SMOKE IN THE CABIN. ELEC SYS WAS SHUT OFF (MASTER SWITCH). INSPECTION OF ELEC SYS SHOWED EVIDENCE OF A FIRE INSIDE OF VOLTAGE REG. VOLTAGE REG WAS INSTALLED IAW INSTRUCTION SHEET NR PPS-2020. THE VOLTAGE REGULATORS INOct 24, 2003 · N734HL · Cessna 172N · Electrical Power System WiringSDR 2004FA0000008Magneto · shortedAIRCRAFT HAD PAST HISTORY OF ENGINE RUNNING RUFF AT TIMES. AT 12 MILES OUT FROM AIRPORT, ENGINE STARTED TO RUN RUFF. AT 6 MILES OUT FROM AIRPORT ENGINE SHUT DOWN AND WOULD NOT START AGAIN. THE AIRCRAFT MADE IT TO RUNWAY, OK. CHECKED MAG AND FOUND BOTH CAPAOct 17, 2003 · N4763D · Cessna 172N · Magneto/DistributorSDR 2003FA0001169Stud · brokenSTUD BROKEN AT CENTER, CAUSE UNKNOWN. NO RECOMMENDATIONS.Oct 13, 2003 · N3386E · Cessna 172N · Engine (Reciprocating)SDR CA031020007Control Unit · shorted(CAN) ACU SHORTED INTERNALLY CAUSING ALTERNATOR TO RUN UNCONTROLLED WHILE IN FLIGHT. PROBLEM RESULTED IN SMOKE IN COCKPIT WITH ALL RADIOS AND INSTRUMENTS THAT ARE ELECTRICAL TO TAKE TO MUCH POWER AND DESTROYED THEM ALL INTERNALLY.Oct 10, 2003 · Cessna 172N · AC RegulatorSDR CA031015011Points · worn(CAN) AT ROUTINE INSPECTION, THE MAGNETO TO ENGINE TIMING WAS FOUND TO BE CONSIDERABLY OFF (ABOUT 5 DEG OFF). THE MAGNETO WAS REMOVED AND FOUND THAT THE E-GAP AND POINT OPENING WERE WAY OFF. THE POINTS ONLY HAD 100 HOURS ON THEM AND THE PLASTIC/NYLON FOOT WASSep 26, 2003 · Cessna 172N · Magneto/DistributorSDR AUS20030968Tappet · cracked(AUS) TAPPETS (8OFF) CRACKED AROUND INSIDE OF PLUNGER BODY.Sep 23, 2003 · Cessna 172N · Reciprocating Engine Power SectionSDR AUS20030913Spar Cap · corroded(AUS) RT WING UPPER SPAR CAP ANGLE CORRODED. ANGLE IS LOCATED IN FUEL TANK BAY.Sep 5, 2003 · Cessna 172N · Wing SparSDR AUS20030741Elt · faulty(AUS) ELT ACTIVATED. THE AIRCRAFT WAS IN THE HANGAR AT THE TIME. THE ELT WAS UNABLE TO BE DE-ACTIVATED EXCEPT BY DISCONNECTING THE BATTERY.Jul 1, 2003 · Cessna 172N · Emergency Locator BeaconSDR 2003FA0000664Stud · brokenTWO 38-13 STUDS BROKEN N NR 2 CYLINDER TOP. 1940 HOURS SMOH.Jun 4, 2003 · N122FR · Cessna 172N · Reciprocating Engine Power SectionSDR CA030605006Crankcase · cracked(CAN) OIL LEAK DISCOVERED AT 100 HOUR INSPECTION. NR 3 CYLINDER REMOVED UPON INSPECTION OF CRANK CASE FOUND 2 CRACKS AT AFT 2 STUDS OF CYLINDER NR 3. OWNER NOTIFIED, ENGINE TO BE REMOVED.May 29, 2003 · Cessna 172N · Reciprocating Engine Power SectionSDR 2003FA0000613Throttle Plate · wornCARBURETOR WAS LEAKING FROM ACCELERATOR PUMP SHAFT SEAL. IN ADDITION TO PUMP SHAFT SEAL, UNIT WAS INSPECTED AND WAS ALSO NOTED THAT THROTTLE SHAFT AND BUSHINGS WERE WORN BEYOND LIMITS. INSTALLED THIS CARBURETOR BACK IN OUR CUSTOMERS PLANE, TEST FLEW WITH NMay 6, 2003 · N738YH · Cessna 172N · Fuel Control/Reciprocating EnginesSDR 2003FA0000512Solenoid · inoperativeFOURTH INCIDENT INVOLVING THIS SAME STARTER SOLENOID INTAILING SHORTING OUT INTERNAL WINDING CAUSING STARTER TO MALFUNCTION. THE FORMER THREE OCCASIONS, THE STARTER FAILED TO ROTATE (SOLENOID STUCK IN THE OPEN POSITION) ON THIS OCCASION, STARTER TURNED AS SOApr 24, 2003 · N737BC · Cessna 172N · Engine Start Valves/ControlsSDR CA030514007Breaker Points · worn(CAN) WHILE IN CRUISE AIRCRAFT EXPERIENCED A DROP IN ENGINE RPM TO APPROXIMATELY 1900 RPM. WHILE HEADING TO NEAREST AIRPORT, A MAGNETO CHECK DETERMINED RIGHT MAGNETO TO BE COMPLETELY DEAD. AFTER LANDING & PULLING POWER BACK, THEN ENGINE QUIT AND COULD NOT BE RApr 22, 2003 · Cessna 172N · Magneto/DistributorSDR 2003FA0000705Points · wornENGINE STOPPAGE DUE TO ABNORMALLY HIGH WEAR TO THE LIFTING BLOCKS OF THE CONTACT POINTS OF BOTH THE LT AND RT SIDES OF A COMMON MAGNETO. BOTH CONTACT POINTS WERE REMOVED AND INSPECTED FOR BOGUS PARTS; REINSTALLED, LUBRICATED, RE-GAPPED AND TIMED. THE AIRCRAFApr 14, 2003 · N9892J · Cessna 172N · Magneto/DistributorSDR CA030407001Tire · blistered(CAN) DURING GROUND HANDLING IT WAS NOTICED THAT A CHUNK OF RUBBER FROM THE SIDE WALL OF THE NOSE WHEEL TIRE WAS MISSING. IT SEAMED THAT THE RUBBER HAD BISTERED AND HAD BURST. NOSE WHEEL TIRE WAS REPLACED.Apr 2, 2003 · Cessna 172N · TireSDR CA030408005Rib · cracked(CAN) ROUTINE INSPECTION FOUND CRACKS IN LEFT NOSE RIB AT STATION 100.00 OF WING. THE RIB WAS CRACKED THROUGH LIGHTENING HOLE TO UPPER BEND RELIEF. RIGHT SIDE AT 100.00 WAS ALSO SHOWING CRACKS FROM RIVET HOLES AND FROM THE BEND RELIEF TOWARD THE LIGHTENING HOLMar 12, 2003 · Cessna 172N · Wing, Rib/BulkheadSDR CA030331008Alternator · failed(CAN) ALTERNATOR FAILURE IN FLIGHT,ELECTRICAL FAILUREMar 9, 2003 · Cessna 172N · DC Generator-AlternatorSDR 2003FA0000340Cylinder · crackedENGINE DISASSEMBLED DUE TO BIRD STRIKE. FOUND NR 2 CYLINDER BARREL CRACKED AT JOINT OF BARREL AND HEAD. CRACK IS APPROXIMATELY 2 INCHES LONG, LOCATED RADIALLY AROUND BORE. CYLINDER SHOWS EVIDENCE OF LEAKAGE EXTERNALLY IMMEDIATELY BELOW FINNED AREA OF HEAD. Mar 7, 2003 · N124FR · Cessna 172N · Reciprocating Engine Cylinder SectionSDR CA030318010Tube · torn(CAN) ON LANDING THE A/C STARTED TO YAW LEFT. THE TIRE ON LT MAIN SIDE WAS FLAT AND VERY LOOSE ON THE RIM. ON LANDING THE BRAKES WERE NOT OVERLY USED. (PILOT REPORT)WHEEL ASSEMBLY DISASEMBLE AND FOUND TUBE WITH TEAR APPROX 1/4 INCH LONG ON THE CENTER OF THE TFeb 28, 2003 · Cessna 172N · Tire Tube
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