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.

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 LOCOct 5, 1995 · N4648L · Cessna 152SDR 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.Oct 5, 1995 · N9671U · Gulstm AA5ASDR 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.Oct 4, 1995 · N3809S · Cessna 172ESDR 95ZZZX5982Cylinder · separatedLEFT ENGINE NR 4 CYLINDER SEPARATED FROM ENGINE. CAUSE UNKNOWN AT THIS TIME. REMOVED AND REPLACED ENGINE, PROPELLER, AND ACCESSORIES.Oct 4, 1995 · N6892R · Piper PA60600SDR 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.Oct 2, 1995 · N8636U · Cessna 172FSDR 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.Oct 2, 1995 · N59316 · Doug DC3CSDR 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.Sep 28, 1995 · N45905 · Cessna 152SDR 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 FACTORSep 27, 1995 · N954CC · Cessna 182QSDR 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.Sep 26, 1995 · N50231 · Cessna 150HSDR 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)Sep 25, 1995 · N28805 · Gulstm AA5BSDR 96ZZZX936Retainer · crackedDURING C/W CONTINENTAL SB CSB95-4, FOUND 2 ROCKER SHAFT RETAINERS CRACKED THROUGH THE BOLT HOLE.Sep 25, 1995 · N123HD · Piper PA28R201TSDR 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.Sep 25, 1995 · N232W · Beech A2324SDR 95ZZZX5932Guide · excess wearNEW CYLINDERS FOR ENGINE ONLY LASTED FOR 85 HOURS WHEN EXHAUST GUIDES EXHIBITED EXCESS WEAR.Sep 22, 1995 · N6079A · Cessna 172SDR 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 FACISep 22, 1995SDR 95ZZZX5986Flange · warpedORDERED NEW INTAKE FLANGES FROM FACTORY. FOUND WARPED. THIS CONDITION COULD LEAD TO BURNED VALVES AND POWER LOSS.Sep 21, 1995SDR 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.Sep 20, 1995 · N2362D · Airtrc AT301SDR 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 MSep 19, 1995 · N2471M · Piper PA23250SDR 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.Sep 13, 1995 · N12BA · Doug DC3SDR 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.Sep 12, 1995 · N55404 · Cessna 172PSDR 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 CSep 10, 1995 · N6754W · Beech 77SDR 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 HESep 8, 1995 · N19111 · Cessna 150LSDR 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 GASKSep 8, 1995 · N234RD · Beech B60SDR 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 FAILESep 7, 1995 · N93FS · Amtr FLIGHTSTARSDR 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.Sep 7, 1995 · N6814H · Cessna 172MSDR 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 Sep 6, 1995 · N52RJ · Mooney M20KSDR 95ZZZX4596Valve · failureEXHAUST VALVE FAILURE. ENGINE HAS 1,601 HOURS SINCE NEW.Sep 6, 1995 · N1689J · Piper PA28140SDR 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.Sep 5, 1995 · N6821E · Cessna 175ASDR 95ZZZX5221Cylinder · guide wornVALVE GUIDE WORN EXCESSIVELY. WOULD NOT PASS COMPRESSION CHECK. OWNER STATED HE WAS NOT USING AUTO FUEL. VALVE GUIDE WAS REPLACED.Sep 5, 1995 · N6821E · Cessna 175ASDR 95ZZZX4597Cylinder · guide wornVALVE GUIDE WORN EXCESSIVELY. WOULD NOT PASS COMPRESSION CHECK. OWNER STATED HE WAS NOT USING AUTO FUEL. VALVE GUIDE WAS REPLACED.Sep 5, 1995 · N6821E · Cessna 175ASDR CA960223015Cylinder · head separated(CAN) CYLINDER HEAD SEPARATED FROM CYLINDER BARREL OF #9 CYLINDER.Sep 4, 1995 · Dhav DHC2MK1SDR 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.Sep 3, 1995 · N6495F · Cessna 150FSDR 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 HSep 1, 1995 · N1599U · Cessna T207SDR 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.Sep 1, 1995 · Cessna 182SDR 95ZZZX5618Rotor Cap · defectiveEXHAUST VALVE ROTOR CAP WILL NOT ROTATE. THIS VALVE ROTOR WAS OUT OF CYLINDER VALVE ASSEMBLY.Aug 31, 1995SDR 95ZZZX5137Rotor · defectiveEXHAUST VALVE ROTOR CAP WILL NOT ROTATE. THIS VALVE ROTOR WAS OUT OF A CYLINDER VALVE ASSEMBLY.Aug 31, 1995SDR 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. FIFAug 31, 1995 · N9249N · Piper PA34220TSDR 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 ANAug 30, 1995 · N986J · Cessna 320BSDR 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.Aug 30, 1995 · N82560 · Bbavia 7ACSDR 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 RESULTAug 29, 1995 · Piper PA23250SDR 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 FOUAug 29, 1995 · N61423 · Cessna A185FSDR 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 FOUNDAug 28, 1995 · N21997 · Cessna 150LSDR 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.Aug 24, 1995 · N852ND · Piper PA44180SDR 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.Aug 21, 1995 · N527T · Beech 95B55BSDR 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 PAug 19, 1995 · N731VX · Cessna A188BSDR 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 REARAug 18, 1995 · N8368H · Piper PA28RT201SDR 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 PREVAug 18, 1995 · N52202 · Mooney M20KSDR 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, 1,806Aug 16, 1995 · N10FA · Gulstm AA1ASDR 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 CYAug 16, 1995 · N42072 · Cessna 182LSDR 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 HADAug 15, 1995 · N8107B · Piper PA28236SDR 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 SCAug 14, 1995 · N38182 · Piper PA28R201T
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