JASC 8530
Service difficulty reports · 4,342
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 95ZZZX6009Push Rod · damagedDURING A 100-HOUR INSPECTION, A SMALL DENT IN NR 1 AND NR 4 EXHAUST PUSH ROD SHROUDS WAS DETECTED. THEY SEEMED TO BE LEAKING OIL. A FURTHER INSPECTION OF THE PUSH RODS REVEALED A VERY DEEP GROOVE OR CHANNEL WORN INTO THEM WHERE THE DENT IN THE SHROUD WAS LOCSDR 95ZZZX5939Valve · failedPILOT REPORTED POWER LOSS OF MAX RPM 1600. INSPECTED POWERPLANT, FOUND NR 3 CYLINDER HAD NO COMPRESSION. PULLED CYLINDER, FOUND EXHAUST VALVE BROKEN. TOP OF PISTON AND CYLINDER HEAD DAMAGED BADLY. SUSPECT VALVE FATIGUE AS CAUSE OF FAILURE.SDR 95ZZZX6013Guide · defectivePILOT REPORTED ENGINE RUNNING ROUGH. COMPRESSION CHECK CYLINDERS, ALL 70/80 OR BETTER. SPARK PLUG INSPECTION SHOWED NR 2 CYLINDER NOT FIRING PROPERLY. FOUND NR 2 EXHAUST VALVE STICKING. REAMED GUIDE AND RETURNED TO SERVICE.SDR 95ZZZX5982Cylinder · separatedLEFT ENGINE NR 4 CYLINDER SEPARATED FROM ENGINE. CAUSE UNKNOWN AT THIS TIME. REMOVED AND REPLACED ENGINE, PROPELLER, AND ACCESSORIES.SDR 95ZZZX6152Piston · brokenLOW COMPRESSION ON NR 1 CYLINDER (80/60) FOUND DURING ANNUAL INSPECTION. DISCOVERED OIL RING MISSING AND PISTON SKIRT BROKEN OFF. SUBMITTER SUSPECTS CAUSED BY IMPROPER CYLINDER INSTALLATION METHODS.SDR 95ZZZX6051Cylinder · head separatedLEFT ENGINE STARTED TO RUN ROUGH IN-FLIGHT. UPON TROUBLESHOOTING, FOUND CYLINDER NR 4 HEAD HAD SEPARATED FROM THE BARREL. CYLINDER WAS REPLACED WITH AN OVERHAULED UNIT.SDR 95ZZZX6410Pushrod · crackedANNUAL INSPECTION FOUND NR 4 INTAKE PUSHROD TO HAVE .75 INCH CRACK AT ROCKER ARM END. REFERENCE AD 80-25-02R2, AD 95-03-10, LYCOMING SB 453 AND LYCOMING SI 2388A. PART TOTAL TIME, 1,973.6 HOURS.SDR 98ZZZX4468Intake Valve · mismanufacturedDURING A ROUTINE COMPRESSION CHECK, THE INTAKE VALVE WAS FOUND LEAKING ON THE NR 4 CYLINDER. THE CYLINDER WAS REMOVED AND THE INTAKE VALVE AND SEAT WERE REGROUND TO FIT EACH OTHER. SUBMITTER SUGGESTED POSSIBLE CAUSE AS IMPROPER ASSEMBLY PROCESS AT THE FACTORSDR 95ZZZX5746Rocker Arm · failedTHE EXHAUST VALVE WAS NOT STUCK IN THE GUIDE. THE BUSHING HAD BEEN CHANGED IN THE ARM AT SOME TIME (OIL HOLE IS NOT LINED UP WITH OIL HOLE IN THE ARM). MAYBE THE BUSHING WAS TOO TIGHT OF A FIT.SDR BIER950022Valve · brokenPILOT REPORTED ROUGH RUNNING ENGINE. COMPRESSION CHECK REVEALED 0/80 ON NR 1 CYLINDER. FURTHER INSPECTION REVEALED EXHAUST VALVE BROKEN - HALF HEAD MISSING. REPLACED CYLINDER/PISTON ASSEMBLY WITH REBUILT UNIT. (X)SDR 96ZZZX936Retainer · crackedDURING C/W CONTINENTAL SB CSB95-4, FOUND 2 ROCKER SHAFT RETAINERS CRACKED THROUGH THE BOLT HOLE.SDR 95ZZZX5605Valve · defectiveDURING ANNUAL INSPECTION, FOUND LOW COMPRESSION IN NR 4 CYLINDER, INSPECTED INSIDE CYLINDER WITH BORESCOPE AND FOUND EXHAUST VALVE WITH PIECES MISSING. VALVE SEAT WAS UNDAMAGED, NO OTHER DEFECTS IN CYLINDER WERE FOUND.SDR 95ZZZX5932Guide · excess wearNEW CYLINDERS FOR ENGINE ONLY LASTED FOR 85 HOURS WHEN EXHAUST GUIDES EXHIBITED EXCESS WEAR.SDR 95ZZZX5651Cylinder · housing failedSUBMITTER REPORTS THAT ONE OPERATOR OF A PRATT & WHITNEY R-1340 ENGINE HAS HAD AT LEAST 4 CYLINDERS BREAK AT SAME LOCATION. HE REPORTS THE EXHAUST ROCKER SHAFT HOUSING AREA OF THE CYLINDERS HAVE EITHER CRACKED OR BROKE IN TWO. TWO RADIAL ENGINE OVERHAUL FACISDR 95ZZZX5986Flange · warpedORDERED NEW INTAKE FLANGES FROM FACTORY. FOUND WARPED. THIS CONDITION COULD LEAD TO BURNED VALVES AND POWER LOSS.SDR 95ZZZX5927Cylinder · head brokeCYLINDER HEAD BROKE AT EXHAUST VALVE ROCKER SHAFT ATTACHMENT PREVENTING THE ROCKER ARM FROM OPENING THE EXHAUST VALVE. THE ENGINE SUBSEQUENTLY QUIT AND THE AIRCRAFT CRASHED IN A FIELD.SDR 95ZZZX5822Cylinder · crackedTHE PILOT REPORTED LOW EGT ON THE LEFT ENGINE. A VISUAL INSPECTION OF NR 6 CYLINDER WHERE THE EGT PROBE IS LOCATED REVEALED A CRACK AT THE LOWER SPARK PLUG HOLE. AFTER REMOVING THE CYLINDER, FOUND THE CRACK WENT FROM SPARK PLUG HOLE TO SPARK PLUG HOLE WITH MSDR 95ZZZX5967Cylinder · failedPILOT NOTICED SPARKS COMING FROM THE LEFT ENGINE. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT LANDED WITHOUT INCIDENT. INSPECTION SHOWED THAT NR 14 CYLINDER HEAD SEPARATED FROM ITS BARREL. REPLACED CYLINDER WITH O/H UNIT AND RETURNED ACFT TO SERVICE.SDR 95ZZZX5528Cylinder · barrel crackedCYLINDER BARREL CRACKED AT BASE OF THE 4TH COOLING FIN AWAY FROM CYLINDER HEAD ATTACH AREA. THIS IS SECOND CYLINDER TO FAIL IN THIS MANNER ON THIS SAME ENGINE SINCE OVERHAUL WITH NEW LYCOMING CYLINDERS.SDR 95ZZZX5630Rocker Cover · rustedWHILE PERFORMING AN ANNUAL INSPECTION THE ROCKER COVERS WERE FOUND EXTREMELY RUSTY ON THE INSIDE. OWNER ADVISED HE HAD LEFT THE ENGINE HEATER PLUGGED IN ALL WINTER. SUBMITTER SUSPECTS CONDENSATION FORMED ON COVERS DUE TO COOL TEMPS OUTSIDE ENGINE AND THAT CSDR 95ZZZX5636Cylinder · rocker brokeA LOSS OF 500 RPM IN-FLIGHT PROMPTED A NORMAL LANDING AT AIRPORT. FURTHER INVESTIGATION REVEALED NR 2 CYLINDER INOPERATIVE. CLOSER DISASSEMBLY REVEALED THE COMPLETE ROCKER ARM ASSY WAS BROKEN LOOSE. ROCKER ARM BOSSES WERE ALL BROKEN OFF HALF WAY UP THEIR HESDR 95ZZZX5525Gasket · failedINTAKE TO CYLINDER GASKET FAILED NEAR BOLT HOLE AFTER 10 HOURS FLIGHT. SURFACE PLATE TEST REVEALED NO ABNORMALITIES IN SEALING SURFACE. GASKET SHOWED DEFINITE IMPRESSION FROM INTAKE TUBE - SEATED 360 DEGREES. GASKET SUPPLIER SUGGESTS A SOFT SPOT ON THE GASKSDR 95ZZZX5980Oil Seal · leakingAFTER TOTAL ENGINE FAILURE WITH NO WARNING, ROTARY VALVE SHAFT WAS FOUND DEFECTIVE. ROTARY VALVE SPLINES WERE FOUND MELTED OFF. FAILURE WAS FOUND TO BE DUE TO ROTARY VALVE OIL BEING DILUTED BY WATER. WATER WAS FOUND IN ROTARY VALVE OIL TANK. SEAL HAD FAILESDR 95ZZZX5649Key · brokenPILOT REPORTED THE ENGINE RUNS ROUGH AT LOW POWER SETTING ONLY. TROUBLESHOT AND FOUND ONE OF THE NR 3 CYLINDER EXHAUST VALVE KEYS BROKEN IN TWO AND THE VALVE STEM WAS DESTROYED IN THE KEY AREA.SDR 95ZZZX5234Guide Seal · defectiveAFTER COMPLAINCE WITH TELEDYNE CONTINENTAL SB CSB-95-4 REGARDING IMPROPERLY INSTALLED INTAKE VALVE GUIDE SEALS, FOUND 2 OF 6 DEFECTIVE SEALS ON ENGINE NOTED. TWO FWD CYLINDERS NR 5 AND NR 6 HAD BROKEN SEALS. REMOVED AND REPLACED ALL INTAKE VALVE GUIDE SEALS SDR 95ZZZX4596Valve · failureEXHAUST VALVE FAILURE. ENGINE HAS 1,601 HOURS SINCE NEW.SDR 96ZZZX717Cylinder · guide wornVALVE GUIDE WORN EXCESSIVELY AND WOULD NOT PASS COMPRESSION CHECK. OPERATOR STATED ENGINE NEVER WAS OVERTEMPED AND WAS NOT USING AUTO FUEL. VALVE GUIDE WAS REPLACED.SDR 95ZZZX5221Cylinder · guide wornVALVE GUIDE WORN EXCESSIVELY. WOULD NOT PASS COMPRESSION CHECK. OWNER STATED HE WAS NOT USING AUTO FUEL. VALVE GUIDE WAS REPLACED.SDR 95ZZZX4597Cylinder · guide wornVALVE GUIDE WORN EXCESSIVELY. WOULD NOT PASS COMPRESSION CHECK. OWNER STATED HE WAS NOT USING AUTO FUEL. VALVE GUIDE WAS REPLACED.SDR CA960223015Cylinder · head separated(CAN) CYLINDER HEAD SEPARATED FROM CYLINDER BARREL OF #9 CYLINDER.SDR 95ZZZX6162Cylinder · fracturedALL ROCKER SHAFT BOSSES FRACTURED DUE TO FATIGUE ALLOWING ROCKER SHAFT AND ROCKER ARMS TO FALL AWAY FROM CYLINDER. ENGINE RAN EXTREMELY ROUGH AND EMERGENCY LANDING WAS COMPLETED WITHOUT INCIDENT.SDR 95ZZZX6743Cylinder · crackedINSPECTION FOUND CYLINDER HEAD WAS SUBSTANTIALLY CRACKED FROM BOTTOM SPARK PLUG HOLE TO TOP SPARK PLUG HOLE THROUGH THE EXHAUST PORT. SUBMITTER STATED THIS IS THE FIFTH (OUT OF SIX) THAT HAVE HAD TO BE REPLACED SINCE ENGINE OVERHAUL (1,339 HOURS AGO) DUE TO HSDR 95ZZZX5754Valve · crackedCYLINDER FAILED COMP. TEST. INTAKE VALVE LEAK. DEFECTIVE INTAKE VALVE HAD ONE-FOURTH OF FACE BURNED AND PITTED, AND A SMALL CRACK ACROSS THE FACE. INTAKE VALVE MADE BY SUPERIOR AIR PARTS.SDR 95ZZZX5618Rotor Cap · defectiveEXHAUST VALVE ROTOR CAP WILL NOT ROTATE. THIS VALVE ROTOR WAS OUT OF CYLINDER VALVE ASSEMBLY.SDR 95ZZZX5137Rotor · defectiveEXHAUST VALVE ROTOR CAP WILL NOT ROTATE. THIS VALVE ROTOR WAS OUT OF A CYLINDER VALVE ASSEMBLY.SDR 95ZZZX5034Piston · erodedOWNER REPORTED AN INCREASE IN OIL CONSUMPTION ON A SQUAK FOR ANNUAL INSPECTION. ENGINE APPEARED TO OPERATE NORMALLY ON RUN-UP. COMPRESSION CHECK REVEALED NR 2 CYLINDER AT 25 PSI. LEAKING PART RINGS. REMOVED CYLINDER AND FOUND NR 1 PISTON CROWN DAMAGE. FIFSDR 95ZZZX5210Intake Hose · leakingLEFT ENGINE SPUTTERED AND BEGAN RUNNING ROUGH. MANIFOLD PRESSURE TRIED TO CLIMB TO AMBIENT PRESSURE AT IDLE. RIGHT FORWARD INTAKE HOSE WAS LEAKING DUE TO CLAMPS (PN 539487) BEING LOOSE WHERE BALANCE TUBE (PN 629937) ATTACHES. REPOSITIONED HOSE AND CLAMPS ANSDR 95ZZZX5107Valve · brokenEMERGENCY LANDING MADE AFTER EXHAUST VALVE HEAD SEPARATED. THIS ENGINE HAD 732 HRS SINCE 'TOP' OVERHAUL AND 2,246 HOURS SINCE NEW. THIS IS THE 446-HOUR PAST MANUFACTURER'S RECOMMENDED TIME.SDR CA951026015Cylinder · disintegrated(CAN)THE #5 CYLINDER WAS TORN OFF THE ENGINE BLOCK. THE PISTON BROKE INTO A THOUSAND PIECES AND ALL THE REST OF THE CENTRAL PARTS WHICH KEEP THE ENGINE TOGETHER WERE CRACKED. IT IS THOUGHT THAT EITHER THE #5 CYLINDER PISTON OR PISTON PIN FAILED AND THE RESULTSDR 95ZZZX4526Roto Coil · making metalWHEN REPLACING ROCKER COVER GASKETS BECAUSE OF OIL LEAKS, FOUND STEEL SLIVERS IN BOTTOM OF COVERS ON NR 3 AND NR 5 CYLINDERS. SENT SLIVERS TO CONTINENTAL TO BE ANALYZED. WAS INSTRUCTED BY CONTINENTAL TO REPLACE ALL ROTO COILS IN BOTH CYLINDERS. NO METAL FOUSDR 95ZZZX4528Shaft Support · brokenDURING A SCHEDULED INSPECTION, (ACFT HAD SAT FOR ABOUT 6 MONTHS), THE COMPRESSION TEST WAS PERFORMED. NR 1 CYLINDER WAS BLOWING-BY FROM EXHAUST VALVE. TO STAKE THE VALVE, THE ROCKER BOX COVER WAS REMOVED. A BROKEN PIECE OF ROCKER ARM SHAFT SUPPORT WAS FOUNDSDR 95ZZZX5757Retain Spring · brokenINSPECTED OVERHAULED ENGINE (FACTORY OVERHAUL) PER SB 519 DURING SCHEDULED ENGINE CHANGE. FOUND NR 2 CYLINDER SHROUD SPRING BROKEN. SPRING FOUND BEFORE ENGINE RUN-UP. INSTALLED NEW PART.SDR 95ZZZX4506Push Rod · brokenOIL LEAK TRACED TO BROKEN ROCKER BOSS AND ROCKER COVER. EXHAUST PUSH ROD BROKEN AND BENT. ENGINE MAY HAVE BEEN STARTED WITH STUCK EXHAUST VALVE SOME TIME IN PAST AND BENT PUSH ROD. PUSH ROD AND TUBE SHOWED SIGNS OF LONG TERM WEAR PRIOR TO BREAKING.SDR 96ZZZX2160Cylinder · separatedCYLINDER HEAD SEPARATED FROM BARREL ON TAKEOFF CAUSING CONSIDERABLE DAMAGE TO AIRCRAFT, NO INJURIES. DURING REPAIR OF ACFT AND ANNUAL INSP, FOUND ENGINE BAFFLE SEAL MATERIAL EXTREMELY DETERIORATED AND IN A DEFECTIVE CONDITION AND CHT PROBE IN WRONG CYLINDER PSDR BIER950020Studs · shearedDURING TAKEOFF, PILOT NOTICED VIBRATION/PWR LOSS, AN UNEVENTFUL LANDING WAS MADE. DURING PRELIM INSP, FOUND 5 OF THE 8 CYL HOLD DN STUDS FOR THE NR 4 CYL HAD SHEARED, LEAVING CYL LOOSELY MOUNTED ON ENG. FURTHER INSP REVEALED CRACK IN CASE AROUND AREA OF REARSDR 95ZZZX4593Gasket · screws looseAFTER TALKING TO ANOTHER MECHANIC WHO HAD SIMILAR PROBLEM (LOOSE ROCKER COVER SCREWS), CHECKED SUBJECT AIRCRAFT AND FOUND LIKE CONDITION. DUE TO SILICONE GASKETS BEING INSTALLED, FOUND SCREWS WOULD LOOSEN OVER TIME. RE-INSTALLED SCREWS USING LOCKTITE TO PREVSDR 95ZZZX5127Pipe · crackedDURING ANNUAL INSPECTION, FOUND FUEL STAINS AT NR 3 CYLINDER. REMOVED NR 3 CYLINDER INTAKE PIPE AND FOUND PIPE FLANGE CRACKED ONE-THIRD AROUND TOP. THIS MAY BE CRACKED BY IMPROPER SEAT OR AGE. NEW PIPE INSTALLED THAT HAD A THICKER FLANGE. TOTAL TIME, 1,806SDR 95ZZZX4431Cylinder · crackedCYLINDER SHOWED LOW COMPRESSION. DETAILED INSPECTION REVEALED CRACK IN EXHAUST VALVE AREA ON HEAD NEAR VALVE EXHAUST PORT. CYLINDER WAS PREVIOUSLY WELDED IN THIS AREA. CYLINDER SCRAPPED. EXCHANGE UNIT INSTALLED. NO WAY OF KNOWING TIME SINCE NEW ON THIS CYSDR 95ZZZX5885Ring · brokenDURING ANNUAL INSPECTION, FOUND NR 4 CYLINDER LOW COMP. (170 HR SMOH). INVESTIGATION FOUND TOP COMP RING BROKEN AND UNUSUAL WEAR ON RINGS. RINGS WORN TO A BEVEL EDGE DOWN OVER RING LANDS. CHECKED ALL CYLS AND FOUND SAME WEAR AND SOME BROKEN RINGS. ENG HADSDR 95ZZZX5765Gasket · failedREPLACED ROCKER BOX COVER GASKETS WITH NEW SUPERIOR SILICON GASKET. USED ALL NORMAL PROCEDURES FOR INSTALLATION. COVERS CAME OFF IN-FLIGHT CAUSING ENGINE OIL LOSS. AFTER FURTHER INVESTIGATION, SUPERIOR FOUND A SL NR P1B-93007, THAT SAYS TO USE LOCTITE ON SC
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