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 97ZZZX964Cylinder · failedON A NIGHT TRAINING FLIGHT, NR 2 CYLINDER BLEW OUT ABOVE THE EXHAUST PORT. THE BLOW-OUT STEERED THE NR 4 CYLINDER OIL LINE AND STARTED A FIRE. AN EMERGENCY LANDING WAS ACCOMPLISHED WITHOUT INJURY TO THE INSTRUCTOR OR THE STUDENT, HOWEVER, THE AIRCRAFT WAS COSDR 97ZZZX798Cylinder · failedEXHAUST VALVE IN CYLINDER NR 3 BROKE AT STEM, INGESTING INTO CYLINDER, CREATING A HOLE IN THE PISTON. PIECES OF VALVE AND PISTON ENTERED ENGINE, CONTAMINATING THE OIL. AN OFF AIRPORT LANDING WAS MADE WITHOUT INCIDENT. AFTER TEAR DOWN, THE CONNECTING ROD WASSDR 97ZZZX1008Cylinder · separatedENGINE WAS RUNNING FINE WHEN AIRCRAFT LANDED, ENGINE BECAME ROUGH AND PILOT NOTICED A RISE IN M.A.P. WHEN MAINTENANCE INSPECTED ENGINE FOUND NR 5 CYLINDER HEAD SEPARATED FROM BARRELL. THIS CYLINDER IS A CHROME CYLINDER OVERHAULED BY ECI SOUTH CERMICHROME.SDR 97ZZZX980Union · detachedCYLINDER DRAIN FITTING CAME OUT OF HEAD. DRAIN LINE WAS STILL ATTACHED. THIS CAUSED ERRONEOUS READINGS ON SENSE SYSTEM.SDR 97ZZZX824Valve · wornINVESTIGATION FOR A PROGRESSIVE DETERIORATION OF ENGINE FOUND EXCESSIVE WEAR ON VALVE STEMS, VALVE SEATS DEFECTIVE, RING AND PISTON WEAR EXCESSIVE. SUBMITTER STATES ENGINE WOULD NOT MAKE 2,400 TBO. ENGINE OIL CHANGED AT 50-HOUR INTERVALS. PHILLIPS 20W50XC OSDR AU971342Valve · sticking(AUS) ENGINE EXHAUST VALVE STUCK AND PUSHROD DEFORMED.SDR CA970130005Cylinder · separated(CAN) IN ACCORDANCE WITH AIRWORTHINESS DIRECTIVE 78-08-07 CYLINDERS #1,2,3,4,7,8 SEPARATED AT THE HEAD/BARREL.SDR AU970238Nut · loose(AUS) ENGINE EXHAUST MANIFOLD ATTACHMENT NUTS LOOSE - ONE NUT MISSING - ONE STUD IN CYLINDER HEAD PULLEDSDR AU970235Nut · loose(AUS) CYLINDER HEAD HOLD DOWN NUTS LOOSE - HEAD MOVING ON CYLINDER BARRELSDR 97ZZZX538Valve Keeper · strippedINSP FOUND THE LOCKING PORTION OF THE INSIDE DIAMETER OF PN 21361 (KEEPER) WAS STRIPPED AWAY ALLOWING EXHAUST VALVE TO ENTER COMBUSTION CHAMBER OF CYL NR 1 DURING FLIGHT. KEEPERS ARE OBVIOUSLY OF LESS HARDNESS THAN VALVE STEM. TIME IN SERVICE, OSCILLATORY FOSDR 97ZZZX631Rocker · brokeTHE NR 2 EXHAUST 'ROLLER ROCKER' BROKE MID-WAY BETWEEN THE PUSH ROD SOCKET AND THE ROCKER ARM SHAFT. STC 8594SW.SDR 97ZZZX578Valve · defectiveINTAKE VALVE ON 470/520 SERIES ENGINES BUILT BY CONTINENTAL. THE VALVE FACE IS TOO SOFT AND SHOWS SEVERE WEAR. SUBMITTER CHECKED OVER 50 DIFFERENT CYLINDERS WITH HOURS RANGING FROM 150 HOURS TOTAL TIME TO 1500 HOURS TOTAL TIME AND ALL VALVES WITH THIS PART NSDR 97ZZZX3739Stud · failedAS A RESULT OF AN ACCIDENT, FOLLOW-UP INVESTIGATION REVEALED THE ENGINE LOST POWER DUE TO FAILURE OF THE ROCKER ARM SHAFT HOLD-DOWN STUDS ON NR 2 CYLINDER. AD 92-04-09 WAS C/W. THE CYLINDER WAS AN EXCHANGE INSTALLED AT THE LAST OVERHAUL. STUDS FAILED MOST LSDR CA970114010Cylinder · separated(CAN) #1 ENGINE RUNNING ROUGH ON TAKEOFF. AIRCRAFT RETURNED TO BASE. POST FLIGHT INSPECTION FOUND #5 CYLINDER HEAD SEPARATED FROM THE BARREL, WITH A THREE INCH CRACK FROM THE INTAKE VALVE TO THE INTAKE PORT.SDR 97ZZZX962Cylinder · studs brokeON TWO DIFFERENT SCHWEIZER HELICOPTERS EQUIPPED WITH HIO360D1A ENGINES, NR 2 CYLINDER BROKE 6 BASE STUDS. THE TWO THROUGH-STUDS REMAINED INTACT IN BOTH CASES. ONE ENGINE HAD 932 HOURS AND THE OTHER 1,424 HOURS SINCE MAJOR OVERHAUL. BREAKS ARE CLEAN WITH NO SDR 97ZZZX961Cylinder · studs brokeON TWO DIFFERENT SCHWEIZER HELICOPTERS EQUIPPED WITH HIO360D1A ENGINES, NR 2 CYLINDER BROKE 6 BASE STUDS. THE TWO THROUGH-STUDS REMAINED INTACT IN BOTH CASES. ONE ENGINE HAD 932 HOURS AND THE OTHER 1,424 HOURS SINCE MAJOR OVERHAUL. BREAKS ARE CLEAN WITH NO SDR 97ZZZX415Gasket · deterioratedUPON USING A NEW SERIES VALVE COVER GASKET 653191D, FOUND THAT ALL OF THE GASKETS RECEIVED FROM THE VENDOR LEAKED. ALL OF THE GASKETS WERE FOUND TO DEVELOP AN AREA WHERE THE GASKET WAS LITERALLY FALLING APART. THERE DID NOT APPEAR TO BE ANY LONG FIBER MATERISDR 97ZZZX274Cylinder · crackedPILOT REPORTED DROPPING CHT ON LEFT ENGINE. POST-FLIGHT REPORTED LARGE OIL LEAK. FOUND NR 6 CYLINDER HAD A CRACK THROUGH UPPER BASE FLANGE. FORWARD THREE CYLINDER HOLD DOWN STUDS WERE BROKEN. THIS CYLINDER WAS PURCHASED NEW FROM LYCOMING AT OVERHAUL. STUDSDR 97ZZZX25Retainer · brokenFOUND 3 ROCKER ARM RETAINERS BROKEN AND 2 CRACKED DURING ANNUAL INSPECTION. PARTS HAD NOT COME LOOSE YET.SDR 97ZZZX170Piston Pin · failedINVEST OF TOO MUCH PISTON TO PIN CLEARANCE REVEALED A PISTON PIN BROKEN IN TWO IN THE MIDDLE. IT WAS THE NR SL13444-1 PIN MFG BY CARL BRUCHNER IN GERMANY, IDENTIFIED BY 'CB-3' ON ONE END. INSTALLED IN CYL NR 1. IT HAD DAMAGED THE CONNECTING ROD AND PISTON. SDR 97ZZZX557Valve · failedNR 1 CYLINDER SWALLOWED EXHAUST VALVE. HEAD OF VALVE EMBEDDED IN PISTON.SDR 97ZZZX209Guide · wornFOUND LOW COMPRESSION (30/80) DURING NORMAL MAINT INSPECTION. REMOVED CYL AND FOUND .009 INCH WEAR AT PORT END OF EX GUIDE AND .002 INCH WEAR ON VALVE STEM. THIS WAS A LYCOMING FACTORY NEW CYL KIT INSTALLED DURING RECENT MAJOR OVERHAUL.SDR CA961120002Oil Ring · failed(CAN) LOSS OF ENGINE POWER IN FLIGHT. ENGINE CONTINUED TO OPERATE AND FLIGHT CONTINUED TO DESTINATION. POST FLIGHT INSPECTION FOUND #4 CYLINDER OIL RING FAILED.SDR 97ZZZX26Piston Pin · failedENGINE FAILED ON TAKEOFF DUE TO BROKEN PISTON PIN IN NR 2 CYLINDER, RT ENGINE. ENGINE DESTROYED, BROKEN RODS AND CASES, ETC. RUINED CRANKSHAFT. SUSPECTED CAUSE, MANUFACTURER'S DEFECT.SDR 97ZZZX5Valve · leakCONTINENTAL CYLINDER ASSY PN 653443A13. 2 OUT OF 6 CYLINDERS HAD UNACCEPTABLE LEAKS FROM INTAKE VALVES. ABOUT 1 DROP LIQUID SOLVENT PER MINUTE WITH VALVE SPRINGS INSTALLED. ALSO, VALVE GUIDES ARE HOURGLASS SHAPED. ABOUT .002 INCH SMALLER IN CENTER THAN ON SDR CA961223004Cylinder · separated(CAN) DURING CLIMBOUT THE #1 ENGINE HAD A LOSS OF POWER FOLLOWED BY ROUGH RUNNING. ON RETURN TO THE AIRPORT OIL WAS NOTICED ESCAPING THROUGH THE #1 ENGINE COWLING. POST FLIGHT INSPECTION FOUND THE #1 CYLINDER HEAD LYING IN THE COWLING. THE CYLINDER WAS REMOVEDSDR 96ZZZX5889Piston Pin · mismfgBOUGHT 6 EACH 539467 PISTON PINS. 4 OF THEM WERE WAY TOO LONG. 2 OF THEM WERE CORRECT. RETURNED AND FOUND OUT ALL OF THEM IN STOCK THAT WERE LONG HAD HG CODE ON THE BOX. THE ONES WITH DG AND JG CODES WERE THE CORRECT LENGTH.SDR 96ZZZX6082Valve Seat · looseENGINE RUN-UP AND ROUGH. CHECKED COMPRESSION, FOUND NR 5 CYLINDER 0/80. REMOVED CYLINDER, FOUND EXHAUST VALVE SEAT LOOSE IN HEAD FOLLOWING VALVE DURING VALVE MOVEMENT.SDR 96ZZZX5744Piston P In · failedPISTON PIN BROKE IN 2 PIECES CAUSING A CATASTROPHIC ENGINE FAILURE. OCTOBER 8, 1996, LYCOMING ISSUED A MANDATORY SB NR 527B PERTAINING TO THIS SUBJECT. THE PISTON PIN THAT FAILED HAD THE SAME CODE MARKED ON IT (17328) THAT THE SERVICE BULLETIN STATED MUST BESDR 96ZZZX6020Piston · hole in sideDURING TEST FLIGHT, A LARGE STREAM OF OIL, FROM OIL DOOR OF RIGHT ENGINE WAS NOTICED. SUBSEQUENTLY, ENGINE SHUT DOWN WAS PERFORMED AND AN UNEVENTFUL LANDING WAS MADE. TROUBLESHOOTING REVEALED A DIME SIZE HOLE IN NR 2 CYLINDER PISTON AND SIGNS OF SEVER DETONASDR 96ZZZX5899Cylinder · crackedINSP FOUND ALL FOUR ROCKER BOSSES CRACKED OFF CYLINDER.SDR CA961023003Lock Tab · cracked(CAN) DURING INSPECTION WHILE BENDING THE TAB THAT SECURES THE ROCKER STUD NUT THE TAB CRACKED/BROKE.SDR 96ZZZX5956Valve · leakageENGINE HAS 40.0 HRS SINCE MAJOR OVERHAUL AT WHICH TIME NEW TCM CYLINDERS WERE INSTALLED. COMPRESSION CHECK SHOWS NR 1 CYLINDER AT 40/80 LEAKING THROUGH EXHAUST VALVE AND CYLINDERS NR 2, 3, 5, AND 6 TO BE AT 70/80 WITH SLIGHT EXHAUST VALVE LEAKAGE. BORESCOPE SDR 96ZZZX5953Piston Pin · brokenNR 3 CYL HAS BROKEN PISTON PIN. SUSPECT CAUSE - MANUFACTURER'S DEFECT.SDR CA961216037Cylinder · wrong rings(CAN) AFTER TAKEOFF THE CYLINDER AND OIL TEMPERATURES BECAME HIGH AND THE OIL PRESSURE WAS DROPPING, THE PILOT RETURNED TO BASE. TWO CYLINDERS HAD RECENTLY BEEN REPLACED AND INVESTIGATION HAD FOUND THAT THE WRONG PISTON RINGS HAD BEEN INSTALLED. THE ENGINE WASSDR 96ZZZX6089Push Rod · bentPILOT NOTED A SUDDEN ROUGHNESS IN THE ENGINE FOLLOWED BY A 200-300 RPM LOSS. MADE A SAFE EMERGENCY LANDING. DISPATCHED A MECHANIC TO DETERMINE CAUSE. THE INTAKE PUSHROD AND TUBE WERE SEVERELY BENT. THE LOWER SPARK PLUG WAS BADLY LEAD FOULED. SUSPECT CAUSESDR 96ZZZX5722Cylinder · excess wearTHIS FACILITY INSTALLED SIX CYL ASSEMBLIES PREASSEMBLED BY TCM ON AN O300A ENGINE (CESSNA 172). ENGINE WAS OPERATED ON 80/87 AVIATION FUEL AND AEROSHELL 80 MINERAL OIL. AFTER 14 HOURS TOTAL TIME IN SERVICE (TWO MONTHS ELAPSED TIME) LOW COMPRESSION WAS EXPERISDR 96ZZZX5806Piston Pin · brokenREMOVED NR 4 CYLINDER FOR MAINTENANCE. FOUND PISTON PIN INTERNAL PIN BROKEN. INSTALLED NEW P/N 630046 PIN ASSY WITH EXCHANGE CYLINDER ASSY.SDR 97ZZZX10O-Ring · missingFOUND CYLINDER BASE O-RING MISSING ON NR 5 CYLINDER. REMOVED NR 2 CYL. ALSO, NO O-RING ON CYL BASE. CHECK REMAINING CYLINDERS AFTER TALKING TO CONTINENTAL AND FOUND NO O-RINGS ON 3 CYLINDERS, NR 3 NR 4, AND NR 6.SDR 96ZZZX5819Piston Pin · brokenREMOVED NR 4 CYLINDER FOR MAINTENANCE FOUND PISTON PIN INTERNAL PIN BROKEN. INSTALLED NEW P/N 630046 PIN ASSY WITH EXCHANGE CYLINDER ASSY.SDR 96ZZZX5650Valve · stuckNR 3 CYLINDER EXHAUST VALVE STUCK, AND BENT PUSH ROD AND PUSH ROD HOUSING. THIS CAUSED ROUGH ENGINE AND AN OIL LEAK. CYLINDER WAS REPLACED WITH OVERHAULED UNIT.SDR 96ZZZX5629Valve Seat · misinstalledCYLINDER EXHAUST SEAT NOT SEATED INTO MACHINED PORTION OF CYLINDER HEAD ALL THE WAY IN. SUSPECT CAUSE: UPON INSTALLATION AT FACTORY, SEATS ARE NOT TAPPED IN, BUT DROPPED IN ASSUMING INSTALLED. SUBMITTER STATED ALWAYS INSPECT NEW CYLINDERS FOR GOOD SEATING OSDR 96ZZZX5628Valve Seat · misinstalledCYLINDER INTAKE SEAT NOT SEATED INTO MACHINED PORTION OF CYLINDER HEAD ALL THE WAY IN. UPON INSTALLATION AT FACTORY, NOT TAPPED IN COMPLETELY OR SEATED TO MACHINED HOLE. SUBMITTER STATES ALWAYS INSPECT NEW CYLINDERS FOR CORRECT SEATING OF VALVE SEAT INTO CYLSDR 96ZZZX5556Spring · brokenDURING A ROUTINE COMP CHECK, NR 6 CYL WAS NOTED TO HAVE LOW COMP. THE ROCKER COVER WAS REMOVED TO STACK VALVE. AT THAT POINT, IT WAS NOTED THAT THE INT VALVE SPRING WAS BROKEN. THE ADJACENT ROCKER WAS THEN REMOVED AND ANOTHER SPRING WAS FOUND TO BE BROKEN ASDR 96ZZZX5607Valve · stretchedPILOT REPORTED THAT THE ENGINE RAN ROUGH AT FULL POWER. REMOVED VALVE COVERS AND FOUND NR 4 CYLINDER EXHAUST VALVE HAD NO CLEARANCE BETWEEN THE VALVE AND ROCKER ARM. THE VALVE HEAD WAS STRETCHED.SDR 96ZZZX5559Cylinder · brokenAFTER DEPARTURE, THE PILOT RETURNED AND LANDED DUE TO AN UNUSUAL NOISE FROM THE ENGINE. HE STATED THAT HE BELIEVED THE EXHAUST SYSTEM HAD PROBABLY BROKEN. UPON INVESTIGATION OF THE ENGINE, DISCOVERED THE NR 2 CYL HAD CRACKED 3/4 OF THE WAY AROUND THE CIRCUMFSDR BIER960036Cylinder · crackedDURING INSPECTION OF NR 4 CYL COMBUSTION DOME FOR UNRELATED PROBLEM FOUND SEVERAL STRESS RELATED CRACKS IN DOME IN AREA BETWEEN EXH VALVE AND BOTTOM SPARK PLUG. THE CRACKS WERE SPREAD OUT AND NOT CONTAINED IN ONE PARTICULAR AREA. ONE CRACK HAD OPENED TO APPRSDR 96ZZZX5424Push Rod · chafedUNDER NORMAL OPERATING CONDITIONS, REMOVED NR 1 CYLINDER EXHAUST SIDE PUSH ROD AND NOTICED SHINEY CHAFE MARK. THE CAUSE IS UNKNOWN. THERE WAS NO DENT IN THE PUSH ROD TUBE. SUBMITTER STATED THIS IS THE THIRD OCCURRENCE ON THE O-235 ENGINE AT THE NR 1 CYLINDESDR 96ZZZX5498Engine · making metalDURING OIL CHANGE, REMOVED AND CUT OPEN OIL FILTER, FOUND COMPLETELY CONTAMINATED WITH NONFERROUS MATERIAL. APPEARED TO BE ALUMINUM. LYCOMING NOTIFIED, INFORMED OUR SHOP THAT MATERIAL PROBABLY WAS PISTON WRIST PIN OUTER BUSHINGS. AIRCRAFT GROUNDED, WAITING SDR 97ZZZX519Cylinder · crackedENGINE LOST POWER IN-FLIGHT. INVESTIGATION REVEALED THAT THE EXHAUST ROCKER HOUSING WAS CRACKED ON THE NR 7 CYLINDER.
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