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 CA961025010Cylinder · separation(CAN) SEPARATION OF #3 CYLINDER. SUSPECT VALVE KEEPERS LET LOOSE.Oct 4, 1996 · Cessna A185FSDR 96ZZZX5561Bolt · failedNR 4 CYLINDER ROCKER SHAFT BOLTS BROKE. LOOSE ROCKER PUNCHED A HOLE THROUGH VALVE COVER. ROUGH RUNNING AND SMOKE IS REASON FOR IN-FLIGHT SHUT DOWN.Oct 1, 1996 · N98PJ · Cessna 421CSDR CA970106007Cylinder · cracked(CAN) INSPECTION FOUND CYLINDER CRACKED AT COOLING FINS AFTER AIRCRAFT MADE FORCED LANDING IN FIELD.Sep 30, 1996 · Cessna 150MSDR 97ZZZX795Cylinder · low compressionCOMPRESSION CHECK REVEALED NR 2 CYL LOW. SUBMITTER STATES THIS IS THE SECOND CE 185 IO550 INSTALLED BY STC TO HAVE LOW COMPRESSION AT 200 HRS, FOUND IN LAST 2 MONTHS.Sep 28, 1996 · N4698C · Cessna A185FSDR 96ZZZX5291Cylinder · seat wornTHE AIRCRAFT ARRIVED FOR 100-HOUR INSPECTION. COMPRESSION CHECK SHOWED NR 4 CYLINDER 55/80. ALL OTHER CYLINDERS WERE IN THE MID 70'S. THE CYLINDER WAS REMOVED. EXHAUST VALVE AND SEAT WERE WORN EXCESSIVELY. THIS IS A FACTORY RE-MANUFACTURED ENGINE. ALSO, FSep 28, 1996 · N2FORSDR CA961003011Cap Valve Stem · missing(CAN) ENGINE WAS OVERHAULED 15 AUGUST 1994. ANNUAL 100 HOUR INSPECTION JULY 1995 FOUND #1 CYLINDER COMPRESSION LOW (50 PSI), CYLINDER WAS REMOVED, REPAIRED AND REINSTALLED UNDER WARRANTY BY OVERHAULER. NEXT 103.3 HOUR ANNUAL INSPECTION FOUND FOUR (4) ROCKER BOSep 26, 1996 · Cessna 177RGSDR 96ZZZX5226Valve · stem failedPRECAUTIONARY LANDING MADE DUE TO POWER LOSS AND FLUCTUATING OIL PRESSURE. ENGINE WOULD MAINTAIN 1,800 RPM, AT FULL THROTTLE. NR 3 CYLINDER EXHAUST VALVE FAILED JUST ABOVE HEAD/STEM RADIUS. SECONDARY CYLINDER AND PISTON DAMAGE REMNENTS OF VALVE FOUND IN MUFSep 26, 1996 · N737FP · Cessna 172NSDR CA961002010Cylinder · broken(CAN) #2 ENGINE BEGAN TO RUN ROUGH AND BACKFIRE IN CLIMB. ENGINE WAS SHUTDOWN AND AIRCRAFT RETURNED TO BASE. POST FLIGHT INSPECTION FOUND THE #6 CYLINDER EXHAUST ROCKER BOX SECTION BROKEN LOOSE FROM THE CYLINDER CAUSING THE EXHAUST VALVE TO REMAIN CLOSED. #6 CSep 18, 1996 · Doug C54ASDR CA961016003Hydraulic Lifter · sleeve seized(CAN) DURING A CYLINDER CHANGE A FAULTY HYDRAULIC LIFTER WAS NOTED AND FURTHER INSPECTION FOUND THE INTERNAL SLEEVE (PISTON) WAS SEIZED.Sep 17, 1996 · Cessna 180JSDR 96ZZZX5114Rocker · failedWHEN AIRCRAFT WAS FLYING, A LOUD BANG WAS HEARD. MAP WENT FROM 27 INCHES TO 20 INCHES WITH NOTICEABLE LOSS OF POWER AND INCREASED VIBRATION. AIRCRAFT WAS LANDED WITHOUT DAMAGE. NR 2 ROCKER COVER REMOVED AND BALL JOINT OF EXHAUST ROCKER FOUND LAYING IN COVERSep 16, 1996 · N4930K · Cessna P210NSDR 97ZZZX1064Cylinder · crackedINSPECTION FOUND NR 4 CYLINDER CRACKED AROUND HEAD OF CYLINDER JUST ABOVE THE TOP OF THE CYLINDER BARREL.Sep 15, 1996 · N8866H · Scwzer G164ASDR CA960924030Piston Pin · sheared(CAN) PILOT HEARD BANG BUT ENGINE CONTINUED TO PERFORM NORMALLY. APPROXIMATELY 2 MINUTES LATER THE ENGINE BEGAN TO SHAKE VIOLENTLY WITH NOTICEABLE POWER LOSS. AIRCRAFT LANDED AND ENGINE WAS SHUTDOWN. POST FLIGHT INSPECTION FOUND #2 CYLINDER PISTON PIN BROKEN, Sep 14, 1996 · Dhav DHC2MK1SDR CA961018002Cylinder · head separated(CAN) HEAD BLOWN OFF CYLINDER.Sep 13, 1996 · Cessna 2105SDR 96ZZZX5140Equalizer Tube · blockedFOUND EQUALIZER TUBE BLOCKAGE AT SMALL HOLE WHERE MANIFOLD PRESSURE LINE CONNECTS. BLOCKED BY CONTAMINATES PERHAPS DUE TO MANUFACTURING.Sep 13, 1996 · N854DF · Diamon DA20A1SDR 96ZZZX5049Cylinder · crackedRIGHT ENGINE STARTED TO RUN ROUGH AND BACKFIRE IN-FLIGHT. ENGINE SHUT DOWN AND AN UNEVENTFUL LANDING WAS MADE. INVESTIGATION FOUND NR 2 CYLINDER CRACKED. CYLINDER WAS REMOVED AND REPLACED WITH A YELLOW TAGGED UNIT. ENGINE GROUND RAN, CHECKED SATISFACTORY. Sep 13, 1996 · N59316 · Doug DC3CSDR 96ZZZX4972Washer · breaksCYLINDER ROCKER ASSY TAB WASHER LOCK TABS BREAK OFF OR CRACK WHEN BENT TO SECURE ROCKER BOLT. WASHER PN SA501867, LOT NR 514064 MFG DATE 7-26-96. ONE REPAIR STATION REPORTS 12 OF 12 WASHER TABS BROKE ON INSTALLATION.Sep 12, 1996SDR 96ZZZX5000Seal · failedDURING AN ANNUAL INSPECTION, THE ENGINE OIL SUCTION SCREEN WAS FOUND TO CONTAIN A SPRING AND FRAGMENTS OF A RUBBER COMPOUND. TELEDYNE CONTINENTAL SB CSB 95-4 PERTAINS TO THIS SUBJECT, BUT IS NOT SUBJECT TO MODELS AFFECTED BY SERIAL NUMBER. THE SB WAS C/W ON Sep 11, 1996 · N64TP · Piper PA34220TSDR 96ZZZX4999Seal · failedDURING AN ANNUAL INSPECTION, THE ENGINE OIL SUCTION SCREEN WAS FOUND TO CONTAIN A SPRING AND FRAGMENTS OF A RUBBER COMPOUND. TELEDYNE CONTINENTAL SB CSB 95-4 PERTAINS TO THIS SUBJECT, BUT IS NOT SUBJECT TO MODELS AFFECTED BY SERIAL NUMBER. THE SB WAS C/W ON Sep 11, 1996 · N64TP · Piper PA34220TSDR 96ZZZX5470Lock Tab · failedCYLINDERS WERE SENT OUT FOR CHROMING AND OVERHAUL. CYLINDERS WERE RECEIVED BACK READY TO INSTALL. NEW SUPERIOR AIR PARTS ROCKER ARM SHAFT BOLT LOCK TABS WERE INSTALLED. UPON BENDING TANGS OVER BOLT HEADS, ALL TANGS EITHER CRACKED OR BROKE OFF COMPLETELY. SSep 10, 1996 · Piper PA28R201TSDR 96ZZZX5303Cylinder · out of specCYLINDER CLASS 68-1 RECEIVED WITH INTAKE ROCKER SHAFT END-PLAY IN EXCESS OF (SIDE CLEARANCE). .040 INCH RECEIVED FROM EC SW, 8-13-96.Sep 10, 1996 · N71136 · Cessna 182MSDR 96ZZZX5139Cylinder · wornTCM CYLINDER KITS (2) PN 649543A3, 547 HOURS SINCE NEW, EXHAUST VALVE GUIDES WORE OUT (VALVE SWIMS IN GUIDES). SUSPECT CAUSE - GUIDES MADE OF POOR MATERIAL. RECOMMENDATION - BETTER QUALITY CONTROL BY TCM.Sep 10, 1996 · N704LY · Cessna 150MSDR 96ZZZX4930Pin Plug · failedCYLINDER REMOVED FROM ENGINE DUE TO ALUMINUM IN OIL SCREEN. FOUND PIN PLUG SHAVED COMPLETELY OFF ON NR 3 CYLINDER ALLOWING PIN TO RUB AGAINST CYLINDER WALL. THESE TYPES OF PIN PLUGS ARE A LOOSE FIT UNLIKE SUPERIOR AIR PARTS, INC., STYLE AND WERE INSTALLED WISep 9, 1996 · Piper PA28*SDR CA960919007Cylinder · separated(CAN) PILOT REPORTED LOSS OF POWER ON TAKEOFF ON #2 ENGINE. POST FLIGHT INSPECTION FOUND #2 CYLINDER HAD SEPARATED AT THE HEAD. THE #2 CYLINDER WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE.Sep 8, 1996 · Piper PA31350SDR 98ZZZX4470Valve Guide · wornDURING A ROUTINE COMPRESSION CHECK, LEAKAGE WAS FOUND ON THE EXHAUST VALVES ON THE NR 1 AND NR 3 CYLINDERS. THE REMOVED CYLINDERS, EXHAUST VALVES AND GUIDES WERE FOUND WORN OUT. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE PARTS AND/OR ASSSEMBLY PROCES FRSep 7, 1996 · N954CC · Cessna 182QSDR 96ZZZX5341Cylinder · head separatedDURING CRUISE ENGINE BECAME ROUGH RUNNING. EMERGENCY LANDING WAS MADE. INVESTIGATION REVEALED HEAD SEPARATION OF CYLINDER.Sep 7, 1996 · N44C · Cessna P210NSDR CA960910008Valve · stuck open(CAN) EXHAUST VALVE STUCK IN OPEN POSITION ON #2 CYLINDER.Aug 31, 1996 · Cessna 150MSDR CA960916023Valve · severe wear(CAN) DURING TROUBLESHOOTING TO DETERMINE CAUSE OF ROUGH RUNNING ENGINE OIL FILTER WAS REMOVED AND FERROUS METAL PARTICLES WERE FOUND. ENGINE WAS DISMANTLED AND #1 AND #3 CYLINDER EXHAUST VALVES WERE FOUND SEVERELY WORN.Aug 30, 1996SDR 96ZZZX5022Cylinder · failedON COMPANY FLIGHT 8-27-96, AIRCRAFT WAS LANDED WHILE EN ROUTE BECAUSE OF LT MAGNETO FAILURE. IT WAS THEN DETERMINED NR 1 CYLINDER EXHAUST ROCKER CHAMBER WAS CRACKED. CYLINDER REPLACED AND AIRCRAFT CONTINUED FLIGHT.Aug 27, 1996 · N491K · Dhav DHC3SDR 96ZZZX4783Valve Guide · oversizeCYLINDER REMOVED FOR LOW COMPRESSION. FOUND EXT VALVE GUIDE .012 INCH OVERSIZE AT ONE END ALLOWING EXT VALVE EXCESS MOVEMENT CAUSING IMPROPER VALVE SEATING. FACTORY NEW CYLINDER INSTALLED. THIS ENGINE FACTORY REMANUFACTURED 6/95.Aug 26, 1996 · N7466Q · Cessna 182PSDR CA960909035Cylinder · cracked(CAN) #1 AND #2 CYLINDERS WERE FOUND CRACKED ON THE CENTRE OF THE HEAD.Aug 24, 1996 · Dhav DHC3SDR 96ZZZX4371Cylinder · crackedCYLINDER CRACKED FROM TOP SPARK PLUG HOLE AROUND SIDE TO BOTTOM SPARK PLUG HOLE. AIRCRAFT LANDED SAFELY WITHOUT FURTHER PROBLEMS (LOSS OF RPM). ENGINE TT, 2,601.4 HOURS. TSMOH: 607.7 HOURS. SUBMITTER STATED THIS IS THE THIRD CRACKED CYLINDER ON THIS AIRCRAug 24, 1996 · N30230 · Piper PA28181SDR 96ZZZX5023Piston · failedDURING FLIGHT, THE PILOT REPORTED HEARING A SLIGHT KNOCKING IN THE ENGINE AND NOTED A 20 PSI DROP IN OIL PRESSURE. A PRECAUTIONARY LANDING WAS MADE WITHOUT INCIDENT. COMPRESSION CHECK REVEALED NR 3 CYLINDER LOW AT 50/80. CYLINDER REMOVAL REVEALED NR 3 PISTOAug 20, 1996 · N5196H · Piper PA14SDR 96ZZZX4382Cylinder · crackedTAKEOFF ABORTED FOR LOSS OF POWER/ROUGH RUNNING ENGINE. POST-FLIGHT MAINTENANCE INSPECTION REVEALED 3 INCH HAIR LINE CRACK RUNNING CIRCUMFERENTIALLY, BETWEEN NR 14 AND NR 15 FIN (COUNTING DOWN FROM TOP) OF NR 2 CYLINDER. SMALL BURN AREA OBSERVED ON NR 4 CYLIAug 20, 1996 · N46758 · Cessna 152SDR CA960910003Valve · stuck open(CAN) WHILE IN CRUISE AN ENGINE CYLINDER EXHAUST VALVE STUCK OPEN. THE SUBMITTER STATES THAT THIS ENGINE WAS OPERATED WITH MOGAS, WHICH HE SAYS IS HARD ON THE VALVES AND SUGGESTS THAT 80/87 OR 100 LOW LEAD GASOLINE SHOULD BE USED.Aug 14, 1996 · Cessna 150MSDR 96ZZZX4287Valve · failedEXHAUST VALVE FAILURE, 200 HOURS AFTER CYLINDER OVERHAUL. YELLOW TAG INDICATES CYLINDER WAS REBUILT USING SERVICEABLE PARTS. REBUILDER WAS CONTACTED, BUT COULD NOT DETERMINE TOTAL NUMBER OF HOURS ON VALVE WHEN INSTALLED. LYC SB NR 301B STATES EXHAUST VALVES Aug 14, 1996 · N33BA · Piper PA38112SDR 96ZZZX4373Cylinder · failedNR 4 CYLINDER HEAD SEPARATED FROM BARREL CAUSING ENGINE FAILURE IN-FLIGHT RESULTING IN FORCED LANDING (I-35 SOUTH, SAN ANTONIO). R2 CYLINDER ASSY OPS CHECK OK.Aug 13, 1996 · N9370R · Cessna A188BSDR 96ZZZX4756Balance Tube · chafedBOTTOM COWL SHOCK MOUNT WAS FOUND CHAFING AGAINST INTAKE BALANCE TUBE ON THE ENGINE. THIS WOULD CAUSE AN INDUCTION LEAK. SAME CONDITION NOTICED ON SEVERAL 182'S. ACTT: 1,281 HOURS. SHOCK MOUNT, P/N S1115-29.Aug 11, 1996 · N414SC · Cessna 182QSDR AU961113Cylinder · cracked(AUS) NO8 CYLINDER CRACKED - DURING REMOVAL TOP OF CYLINDER SEPARATED FROM CYLINDER BODYAug 10, 1996 · Dhav DHC2EVANSSDR CA960827016Valve · stem sticking(CAN) ON INSPECTION THERE WAS NO COMPRESSION ON #4 CYLINDER. THE CYLINDER WAS REMOVED AND THE EXHAUST VALVE GUIDE WAS STUCK AND THE VALVE WAS IN THE FULL OPEN POSITION. THE CYLINDER WAS REPLACED.Aug 9, 1996 · Cessna R182SDR AU961155Cylinder · damaged(AUS) NO3 ENGINE NO6 CYLINDER AND CRANKCASE DAMAGED - AIRCRAFT HAD BEEN IDLE FROM NOVEMBER 1995 UNTIL JUNE 1996 - THE ENGINES HAD NOT BEEN INHIBITED OR REGULARLY GROUND RUN DURING THAT TIMEAug 9, 1996SDR 96ZZZX4826Cylinder · piston failedAIRCRAFT MADE EMERGENCY LANDING. RIGHT ENGINE FAILED DUE TO NR 2 CYLINDER AND PISTON DEPARTING AIRCRAFT IN-FLIGHT. CYLINDER PARTS AND SIDE COWL NEVER RECOVERED. TEAR-DOWN INSPECTION REVEALED NO APPARENT REASON FOR FAILURE.Aug 9, 1996 · N2343Z · Piper PA23250SDR CA960827017Valve · warped seat(CAN) ON A 200 HOUR INSPECTION #3 AND #4 CYLINDERS HAD NO COMPRESSION. THE VALVES WERE NOT SEATING PROPERLY. DUE TO THE HIGH TIME OF THE ENGINE THE ENGINE WAS REPLACED.Aug 8, 1996 · Cessna R182SDR 96ZZZX5213Cylinder · scoredAT ANNUAL INSPECTION ENGINE COMPRESSION READINGS SHOWED THE FOLLOWING: NR 1, 70/80, NR 2, 58/80, NR 3, 72/80, NR 4, 56/80, NR 5, 64/80, AND NR 6, 70/80. ALL LEAKAGE WAS PAST PISTON RINGS. BORESCOPE INSPECTION REVEALED SCORING ON ALL CYLINDERS. AN INSPECTIOAug 8, 1996 · N1950U · Cessna A185ESDR 96ZZZX4895Cylinder · crackedLEFT ENGINE BEGAN CONTINUOUSLY BACKFIRING AFTER LEAVING 2,000 FEET. ALL PRESSURES WERE NORMAL, TORQUE METER FLUCTUATIONS BETWEEN BACKFIRES. ENGINE WAS SHUT DOWN AND SECURED, RETURNED TO AIRPORT. NR 1 CYLINDER WAS FOUND CRACKED AT EXHAUST PORT. CYLINDER REPAug 8, 1996 · N22913 · Cvac 240*SDR CA960826097Stud · broken(CAN) DURING FLIGHT ENGINE STARTED TO RUN ROUGH. ENGINE POWER REDUCED AND AIRCRAFT LANDED ON HIGHWAY. GROUND INSPECTION FOUND #4 CYLINDER EXHAUST ROCKER STUD BROKE ALLOWING THE ROCKER ARM AND STUD TO FALL INTO THE BOTTOM OF THE ROCKER COVER. THIS RESTRICTED THAug 7, 1996 · Cessna 172NSDR CA960819201Pushrod · sheared(CAN) PILOT REPORTED BACKFIRE DURING GROUND RUN-UP. INVESTIGATION FOUND REAR ENGINE #3 CYLINDER EXHAUST PUSHROD SNAPPED APPROXIMATELY 1" FROM THE TIP. RETAINER P/N 628059 WAS ALSO FOUND FAILED. ENGINE WAS RETURNED TO OVERHAUL SHOP.Aug 7, 1996 · Cessna 337ASDR 96ZZZX4949Piston · wrong partCUSTOMER COMPLAINED OF LOW STATIC RPM AND SLUGGISH PERFORMANACE OF AIRCRAFT. THIS CORRESPONDED WITH APPROXIMATE TIME OF A TOP OVERHAUL. PROPELLER AND TACHOMETER WERE CHECKED AND WITHIN SPECIFICATIONS. LOG BOOK ENTRIES STATING WORK DONE WAS VERY VAGUE AND NOAug 6, 1996 · N52219 · Cessna 172PSDR 96ZZZX4742Rocker Boss · failedROCKER BOSS FAILED (CRACKED) ON EXHAUST SIDE ON CYLINDER NR 3. ROCKER SHAFT PUNCHED THROUGH VALVE COVER. INSPECTED MAGNETO DRIVE COUPLING PER SB M90-11, FOUND OK.Aug 6, 1996 · N105AK · Cessna 404CESSNASDR CA960826094Valve · broken(CAN) BROKEN EXHAUST VALVE ON #5 CYLINDER. CYLINDER REPLACED, ENGINE GROUND RUN SERVICEABLE AND AIRCRAFT RETURNED TO SERVICE.Aug 3, 1996 · Cvac PBY5ASDR 96ZZZX5228Valve · wornPEFORMED SB 388B ON ALL 6 CYLINDERS AT ANNUAL INSPECTION, 4 OF 6 CYLINDER EXHAUST VALVE AND GUIDES WORN BEYOND SPECS. REMOVED CYLINDERS, FOUND 2 CYLINDERS WITH BROKEN RINGS, AND 6 CYLINDERS WERE CRACKED. REPLACED CYLINDER ASSY. SUBMITTER STATED SB 88B IS A GAug 2, 1996 · N738FH · Cessna TR182
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