JASC 8530
Service difficulty reports · 4,341
Reports filed under 8530 · Reciprocating Engine Cylinder Section, newest first.
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 jasc_code = '8530' 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.
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 jasc_code = '8530' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR ECPR2018031278406Cylinder Head · crackedDURING A SCHEDULED INSPECTION, FOUND THE NR 4 CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THE CYLINDER HEAD WAS CRACKED AROUND THE INTAKE VALVE SEAT AND THROUGH THE CYLINDER HEAD WALL OUT BETWEEN THE CYLINDER COOLING FINS.SDR 2020FA0000071Cylinder Head · crackedAPPROXIMATELY 2 INCH RADIAL CRACK IN CYLINDER HEAD ADJACENT TO AND OUTSIDE OF THE INTAKE VALVE. EXTERNAL EVIDENCE OF EXHAUST GASSES ESCAPING FROM CRACK WAS PRESENT AND COMPRESSION TEST PRODUCED FREE FLOW OF SHOP AIR FROM CYLINDER HEAD BETWEEN THE 9TH AND 10THSDR ECPR2018030778354Cylinder Head · crackedDURING A SCHEDULED INSPECTION, FOUND THE NR 2 CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THE CYLINDER HEAD WAS CRACKED AROUND THE INTAKE VALVE SEAT AND THROUGH THE CYLINDER HEAD WALL OUT BETWEEN THE CYLINDER COOLING FINS.SDR ECPR2018030278298Exhaust Valve · damagedDURING A SCHEDULED INSPECTION, FOUND THAT THE NR 1 ENGINE CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THAT THE EXHAUST VALVE FACE AND EXHAUST SEAT INTERFACE SHOWED EXCESSIVE WEAR CAUSING THE EXHAUST VALVE FACE TO CUP.SDR ECPR2018022278197Exhaust Valve · damagedDURING A SCHEDULED INSPECTION, FOUND THAT THE NR 3 ENGINE CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THAT THE EXHAUST VALVE FACE AND EXHAUST SEAT INTERFACE SHOWED EXCESSIVE WEAR, CAUSING THE EXHAUST VALVE FACE TO CUP.SDR 2018FA0000461Cylinder · crackedWHILE SERVICING ACFT EXHAUST SYSTEM I LOOKED IN THE EXHAUST PORTS AND FOUND ALL 4 CYLINDERS CRACKED IN THE SAME LOCATION FROM THE EXHAUST SEAT TO THE EXHAUST STUD. THREE OF THE CYLINDERS WERE CRACKED IN THE SPARK PLUG BOSS WITH 1 OF THEM HAVING NUMEROUS SMALLSDR HYIA20180220001Piston · damagedPILOT REPORTED AN EXCESSIVE AIR FRAME VIBRATION ASSOCIATED WITH PROP RPM. MAINTENANCE INSPECTED AND FOUND THE RIGHT ENGINE NR 6 CYLINDER PISTON HEAD TO BE DAMAGED, AND FOREIGN MATTER ON THE CYLINDER UPPER SPARK PLUG. THE DAMAGE TO THE PISTON APPEARED TO BE CSDR ECPR2018032978037Exhaust Valve · damagedDURING A SCHEDULED INSPECTION, FOUND THE NR 4 ENGINE CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THAT THE EXHAUST VALVE FACE AND EXHAUST SEAT INTERFACE SHOWED EXCESSIVE WEAR CAUSING THE EXHAUST VALVE FACE TO CUP.SDR ECPR2018020578024Cylinder Head · crackedDURING A SCHEDULED INSPECTION IT WAS FOUND THAT THE NR 1 CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THE CYLINDER HEAD WAS CRACKED AROUND THE INTAKE VALVE SEAT AND THROUGH THE CYLINDER HEAD WALL OUT BETWEEN THE CYLINDER COOLING FINS.SDR ECPR2018012377870Cylinder Head · crackedDURING A SCHEDULED INSPECTION, FOUND THAT THE NR 1 CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THE CYLINDER HEAD WAS CRACKED AROUND THE INTAKE VALVE SEAT AND THROUGH THE CYLINDER HEAD WALL OUT BETWEEN THE CYLINDER COOLING FINS.SDR CA180116016Valve Seat · worn(CAN) DURING HOT CYLINDER COMPRESSION TEST OF ENGINE FOUND NR 3 CYLINDER TO HAVE 0 COMPRESSION. DURING TROUBLESHOOTING, FOUND EXHAUST VALVE TRAIN TO HAVE ZERO CLEARANCE BETWEEN ROCKER ARM AND VALVE STEM AT TOP DEAD CENTER. REMOVED CYLINDER TO INSPECT AND FOUSDR 2018FA0000019Cylinder Head · crackedTHIS ENGINE CYLINDER DEVELOPED LOW COMPRESSION DURING FLIGHT. ON INSPECTION IT WAS DISCOVERED THE CYLINDER HEAD HAD A CRACK NEAR THE INTAKE VALVE.SDR ECPR2018010477698Exhaust Valve · wornDURING A SCHEDULED INSPECTION, FOUND THAT THE NR 4 CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THAT THE EXHAUST VALVE FACE AND EXHAUST SEAT INTERFACE SHOWED EXCESSIVE WEAR CAUSING THE EXHAUST VALVE FACE TO CUP.SDR ZJW201802270001Stud · brokenLEFT ENGINE FEATHERED DUE TO LOW OIL PRESSURE. NUMBER 2 CYLINDER STUDS BROKEN.SDR HYIA20171226001Cylinder · failedPILOT REPORTED RIGHT ENGINE RUNNING ROUGH. UPON INSPECTION FOUND THE RIGHT ENGINE NR 3 CYLINDER TO HAVE LOW COMPRESSION AND THE CYLINDER EXHAUST VALVE TO HAVE EVIDENCE OF A BURNING. THE CYLINDER WAS REPLACED.SDR 2017FA0000655Intake Rocker · wornWHILE CONDUCTION FLIGHT OPERATIONS AND PERFORMING A RIGHT MANEUVER, ENGINE STARTED RUNNING ROUGH. UPON REACHING PATTERN ALTITUDE THE ENGINE COULD NOT MAINTAIN RPM AND HELICOPTER STARTED LOSING ALTITUDE AND AN EMERGENCY LANDING WITH AUTO ROTATION HAD TO BE PERFSDR ECPR2017121977588Cylinder · crackedDURING A SCHEDULED INSPECTION IT WAS FOUND THAT THE NR 1 CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THE CYLINDER HEAD WAS CRACKED AROUND THE INTAKE VALVE SEAT AND THROUGH THE CYLINDER HEAD WALL OUT BETWEEN THE CYLINDER COOLING FINS.SDR 2018FA0000015Cylinder Head · separatedENGINE VIBRATION. DISCOVERED NR 3 CYLINDER LOW PRESSURE, AT 20 PSI DURING TEST. FOUND THE CYLINDER HEAD AND BARREL SEPARATING AFTER REMOVAL.SDR 2018FA0000014Cylinder · crackedTHIS ENGINE CYLINDER DEVELOPED LOW COMPRESSION DURING FLIGHT, UPON INSPECTION, IT WAS DISCOVERED THE CYLINDER HEAD HAD A CRACK/HOLE NEAR THE INTAKE VALVE.SDR ECPR2018032877350Cylinder Head · crackedDURING A SCHEDULED INSPECTION, FOUND THAT THE NR 2 CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THE CYLINDER HEAD WAS CRACKED AROUND THE INTAKE VALVE SEAT AND THROUGH THE CYLINDER HEAD WALL OUT BETWEEN THE CYLINDER COOLING FINS.SDR ECPR2017112777294Exhaust Valve · wornDURING A SCHEDULED INSPECTION IT WAS FOUND THAT THE NR 4 ENGINE CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THAT THE EXHAUST VALVE FACE AND EXHAUST SEAT INTERFACE SHOWED EXCESSIVE WEAR CAUSING THE EXHAUST VALVE FACE TO CUP.SDR HYIA20171121001Exhaust Valve · brokenPILOT REPORTED RIGHT ENGINE VIBRATING ON FINAL APPROACH AND TAXI. MAINTENANCE INSPECTED AND FOUND NO COMPRESSION ON THE RIGHT ENGINE NR 4 CYLINDER. UPON REMOVAL DISCOVERED THE EXHAUST VALVE HAD CRACKED AND BROKEN. THE CYLINDER WAS REPLACED WITH NO FURTHER DEFESDR HYIA20171113001Cylinder · damagedAT CRUISE POWER SETTING, CREW REPORTED A ROUGH RUNNING RT ENGINE ALONG WITH A CONTINUOUS MODERATE VIBRATION THROUGHOUT RANGE OF POWER SETTINGS. THE FLIGHT DIVERTED AND LANDED SAFELY. INSPECTION REVEALED THE NR 6 CYLINDER AND PISTON ASSEMBLY WERE SEVERELY DASDR 2017FA0000552Cylinder Head · crackedDURING INITIAL CLIMB, THE CREW EXPERIENCED A SIGNIFICANT POWER LOSS. THE INSTRUCTOR PILOT LANDED THE AIRPLANE ON AN ALTERNATE RUNWAY. INSPECTION REVEALED A CRACK IN THE NR 2 CYLINDER HEAD ORIGINATING FROM THE INTAKE VALVE SEAT AND CONTINUING THROUGH THE CYLINSDR ECPR2018032807067Exhaust Valve · wornDURING A SCHEDULED INSPECTION IT WAS FOUND THAT THE NR 2 ENGINE CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THAT THE EXHAUST VALVE FACE AND EXHAUST SEAT INTERFACE SHOWED EXCESSIVE WEAR CAUSING THE EXHAUST VALVE FACE TO CUP.SDR HYIA20171031001Cylinder · damagedDURING CLIMB OUT OF STT THE CREW REPORTED A DECREASE RT ENGINE MANIFOLD PRESSURE. SUBSEQUENT INCREASE IN RT THROTTLE LEVER DID NOT INCREASE MANIFOLD PRESSURE THOUGH MANIFOLD PRESSURE STABILIZED AT 26". THE FLIGHT WAS CONTINUED. RT ENGINE OIL TEMPERATURE BEGSDR 2017FA0000520Cylinder Head · crackedONE CYLINDER WAS CRACKED AT THE CROWN OF THE HEAD. CRACK WAS VISIBLE BETWEEN THE CYLINDER FINS WITH EXHAUST PRINTING VISIBLE.SDR 2017FA0000519Cylinder Head · crackedONE CYLINDER WAS CRACKED AT THE CROWN OF THE HEAD. CRACK WAS VISIBLE BETWEEN CYLINDER FINS WITH EXHAUST PRINTING VISIBLE.SDR 2017FA0000518Cylinder Head · crackedTHREE OF THE FOUR CYLINDERS WERE CRACKED AT THE CROWN OF THE HEAD. CRACKS WERE VISIBLE BETWEEN THE CYLINDER FINS WITH EXHAUST PRINTING VISIBLE.SDR 2017FA0000512Intake Valve · chippedLOW COMPRESSION DURING A 100 HOUR INSPECTION, IN ONE CYLINDER (20/80) WAS OBSERVED. BORESCOPE INSPECTION SHOWED AN INTAKE VALVE THAT HAD LOST PART OF THE LIP THAT SEALS AGAINST THE VALVE SEAT.SDR ECPR2017101276877Exhaust Valve · damagedDURING A SCHEDULED INSPECTION, FOUND THAT THE NR 1 ENGINE CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THAT THE EXHAUST VALVE FACE AND EXHAUST SEAT INTERFACE SHOWED EXCESSIVE WEAR CAUSING THE EXHAUST VALVE FACE TO CUP.SDR WVBA201710120001Valve Guide · wornEXHAUST VALVE GUIDE LEAKING OIL. LOSS OF COMPRESSION. FOUND POOLING OF EXCESS OIL IN ROCKER BOX CAVITY AND SIGNS OF EXHAUST BLOW-BY ON EXHAUST VALVE SPRINGS. THIS IS THE 4TH VALVE GUIDE TO EXIBIT EXCESSIVE WEAR
PROBLEM. THE CYLINDER WAS INSTALLED AS FACTORY NSDR ECPR201710476817Cylinder · crackedDURING A SCHEDULED INSPECTION, FOUND THAT THE NR 4 CYLINDER HAD LOW COMPRESSION. INVESTIGATION FOUND THAT THE EXHAUST VALVE FACE AND EXHAUST SEAT INTERFACE SHOWED EXCESSIVE WEAR CAUSING THE EXHAUST VALVE FACE TO CUP.SDR 2017FA0000506Rocker · brinelledDURING AN ENGINE REPAIR, ONE ROCKER ARM WAS FOUND TO HAVE SEVERELY WORN AREA WHERE THE ROCKER ARM PUSHES ON THE VALVE STEM.SDR HYIA09092017001Rotor Coil · damagedCREW REPORTED ENGINE ROUGHNESS IN FLIGHT AT POWER REDUCTION FOR CRUISE AND MIXTURE FULL RICH. THE ACFT LANDED SAFELY AT ITS INTENDED DESTINATION WITH NO ISSUE. INSPECTION DISCOVERED LOW DIFFERENTIAL COMPRESSION CHECK RESULT AT CYLINDER NR 4 OF THE LT ENGINESDR BIER20171017001Washer · unsecureDURING MAINTENANCE, THE ENGINE HAD ROCKER COVERS LEAKING. REPLACED THE GASKET. TECHNICIAN FOUND THE LOCKING TAB WASHER WAS NOT BENT UP TO PREVENT SCREW FROM LOOSENING ON THE NR 3 & 5 CYLINDERS EXHAUST ROCKER SHAFT. LAST MAINTENANCE PREVIOUSLY ON THIS SDR HYIA20170826001Cylinder · damagedCREW REPORTED A STRONG VIBRATION FROM RT ENGINE AS MIXTURE WAS REDUCED BELOW 100 PPH. THE CREW ENRICHED THE MIXTURE AND ELECTED TO DIVERT TO KHYA AS A PRECAUTION. INSPECTION DISCOVERED LOW DIFFERENTIAL COMPRESSION, 0 PSI/80PSI, AT CYLINDER POSITION NUMBER 1SDR HYIA20170822002Exhaust Valve · damagedCREW REPORTED 'INTERMITTENT ENGINE MISFIRE IN FLIGHT. NO PRECAUTIONARY ACTIONS WERE TAKEN BY THE CREW AND THE ACFT LANDED SAFELY AT ITS INTENDED DESTINATION WITH NO ISSUES. INSPECTION DISCOVERED LOW DIFFERENTIAL COMPRESSION CHECK RESULT AT CYLINDER NR 5 FOR SDR 2017FA0000590Piston Pin · brokenDURING THE COURSE OF AN ANNUAL INSPECTION IT WAS FOUND THAT CYLINDER NR 5 HAD LOW COMPRESSION. IT WAS DECIDED TO PULL THE CYLINDER FOR REPAIR AND IN THE PROCESS OF REMOVING THE CYLINDER THE PISTON PIN WAS FOUND TO BE BROKEN IN HALF. UPON FURTHER INVESTIGATIOSDR 2017FA0000549Cylinder · crackedCRACKED CYLINDER INSTALLED. THE ENGINE HAS APPROXIMATELY 850 HOURS ON IT SINCE OVERHAUL. DURING OVERHAUL, SIX NEW CYLINDERS WERE INSTALLED. THE ACFT RECENTLY CAME IN FOR A 50 HOUR INSPECTION AT WHICH TIME A COMPRESSION TEST WAS CONDUCTED. DURING THE COMPRESDR 2017FA0000355Cylinder · failedNUMBER 3 CYLINDER FAILED. IT CAME APART ABOUT 1 1/2 INCHES UP FROM THE BASE. CYLINDER WAS FIRST INSTALLED ON 6-9-1997 AND RECONDITIONED AT 495 HOURS ON 6/2000. IT HAD 1686 HOURS SINCE NEW WHEN IT FAILED 4/2016.SDR 2017FA0000345Valve Spring · corrodedPILOT REPORTED LOSS OF POWER AND LOWERED TEMP READINGS FROM CYLINDER 2 IN FLIGHT. SHORTLY AFTER THAT ON APPROACH, HE LOST NR 4 TEMP READINGS AND MORE POWER LOSS. TROUBLESHOOTING REVEALED BROKEN INTAKE AND EXHAUST VALVE INNER SPRINGS ON NR 2 CYLINDER, BROKEN SDR 2017FA0000381Valve · failedAPPROXIMATELY 25 HOURS INTO PHASE 1 OF THE EXPERIMENTAL AMATEUR BUILT FLIGHT TEST, WHILE AIRBORNE OVER THE HOME AIRPORT, KLNR, THE EXHAUST VALVE IN THE NR 4 LOWER CYLINDER FAILED, DROPPING THE HEAD OF THE VALVE INTO THE COMBUSTION CHAMBER. THE PILOT SHUT THESDR HYIA20170712001Exhaust Valve · brokenPILOT REPORTED RIGHT ENGINE ROUGH AND VIBRATION IN FLIGHT. UPON INSPECTION MX DISCOVERED THE NR 4 EXHAUST VALVE TO BE BROKEN.SDR 2017FA0000287Cylinder · separatedDURING LEVEL CRUISE FLIGHT AT 3000FT, PILOT EXPERIENCE CATASTROPHIC ENGINE FAILURE. THE FORWARD PILOT SIDE CYLINDER SEPARATED FROM THE ENGINE WHICH ALSO TOOK THE UPPER AND LOWER SECTION OF THE CASE HALF WITH IT.SDR YAXA2017071201Cylinder Head · crackedNR 5 CYLINDER HAD BLUE FUEL STAIN BLOWING ONTO COWLING. CYLINDER WAS REMOVED AND REPLACED WITH NEW DUE TO SUSPECTED HEAD CRACK. CYLINDER WAS SENT OUT FOR NDT WHICH VERIFIED A CRACKED CYLINDER HEAD.SDR 8HBR20170710005Cylinder · crackedPILOT REPORTED ROUGH RUNNING ENGINE. THE NR 1 CYLINDER WAS FOUND CRACKED FOUR INCHES ACROSS THE INTAKE VALVE.SDR FQAR20170705063Cylinder · damagedDURING A ROUTINE INSPECTION, A COMPRESSION TEST WAS PERFORMED. CYLINDER NR 1 DID NOT HOLD PRESSURE AND A LOUD HISSING WAS HEARD FROM THE VICINITY OF CYLINDER HEAD. CYLINDER WAS REMOVED AND A SMALL HOLE WAS OBSERVED IN CYLINDER HEAD BETWEEN FINS, THE HOLE WAS NSDR 8PCR20170713001Valve Spring · brokenDISASSEMBLY OF THE NUMBER 4 CYLINDER REVEALED THAT THE INNER AND OUTER EXHAUST VALVE SPRINGS WERE FRAGMENTED INTO FOUR AND TWO PIECES RESPECTIVELY. THE NUMBER 4 CYLINDER INTAKE EXHAUST VALVES EXHIBITED NORMAL OPERATING SIGNATURES EXCEPT FOR A SIGNIFICANT AMOUSDR 2017FA0000262Stud · missingDURING ROUTINE 50-HOUR SERVICE, DISCOVERED THE NR 2 CYLINDER HOLD DOWN STUDS WERE MISSING AND ONE WAS BACKING OUT. THERE WAS NO REPORTED ISSUE, EVEN FROM THE MECHANIC WHO GROUND RAN THE ENGINE.
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