Lycoming IO-540-AB1A5

Service difficulty reports · 138

Newest first. General aviation reporting is voluntary.

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 engine_model_key = 'IO540AB1A5'
  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 2026FA0000094Doubler · crackedDURING FIREWALL CLEANING/INSPECTION DURING ANNUAL/100HR INSPECTION, A CRACK, APPROXIMATELY 1.0" IN LENGTH WAS DISCOVERED IN THE UPPER RADIUS OF THE LEFT HAND SIDE OF THE LOWER FIREWALL DOUBLER DIRECTLY THROUGH THE TOP RIVET THAT HOLDS THE PARKING BRAKE BRACKETFeb 10, 2026 · N365CA · Cessna 182T · Fuselage Main, BulkheadSDR 2026FA0000074Doubler · crackedDURING FIREWALL CLEANING/INSPECTION DURING ANNUAL/100HR INSPECTION, A CRACK, APPROXIMATELY 2.3 IN LENGTH WAS DISCOVERED IN THE UPPER RADIUS OF THE LEFT HAND SIDE OF THE LOWER FIREWALL DOUBLER DIRECTLY THROUGH THE TOP RIVET THAT HOLDS THE PARKING BRAKE BRACKET Feb 2, 2026 · N655CP · Cessna 182T · Fuselage Main, BulkheadSDR 2026FA0000073Doubler · crackedDURING FIREWALL CLEANING IN PREPARATION OF INSTALLATION OF NEWLY OVERHAULED ENGINE, A CRACK, APPROXIMATELY 2.3 IN LENGTH WAS DISCOVERED IN THE UPPER RADIUS OF THE LEFT HAND SIDE OF THE LOWER FIREWALL DOUBLER DIRECTLY THROUGH THE TOP RIVET THAT HOLDS THE PARKINDec 2, 2025 · N397CP · Cessna 182T · Fuselage Main, BulkheadSDR ODAR2025080600001Skin · crackedDURING 100HR / ANNUAL INSPECTION FOUND RH INBOARD FLAP COVE SKIN CRACKED ALONG WITH FLAP TRACK RIVETS WORKING OUT. INSPECTED AREA AROUND FLAP AND FOUND THE INBD FLAP TRACK/RIB ASSEMBLY TO BE CRACKED THROUGH.Aug 6, 2025 · N482CP · Cessna 182T · Wing, Plate/SkinSDR 2023FA0000395Alternator · seizedCREW REPORTED DURING GROUND RUN AND PRIOR TO TAXI, ENGINE MADE A LOUD NOISE, AND THE ENGINE WAS SHUT DOWN IMMEDIATELY. THIS HAPPENED PRIOR TO FLIGHT, WITH NO INDICATION OF A PENDING FAILURE. MAINTENANCE TECHNICIAN REPORTED THAT THE ALTERNATOR HAD SEIZED, ANJul 31, 2023 · N859JA · Cessna 182T · DC Generator-AlternatorSDR 2023FA0000310Points · brokenTEST, TEST, TEST: MAGNETO POINT FAILUREJun 12, 2023 · N177CP · Cessna 182T · Magneto/DistributorSDR 2022FA0000270Points · brokenMAGNETO POINT FAILUREMay 31, 2022 · N177CP · Cessna 182T · Magneto/DistributorSDR JRUR2020032560002Magneto · unserviceableSLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS FOUND IN THE RIVETS, THE IMPULSE COUPLING MUST BE REJECTED. INSPECTED MAGNETO MODEL NO. 6351 P/N: Mar 25, 2020 · N17HP · Cessna 182T · Magneto/DistributorSDR JRUR202003120011Impulse Coupling · unserviceableSLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS FOUND IN THE RIVETS, THE IMPULSE COUPLING MUST BE REJECTED. MAGNETO INSTALLED WITH TSN 0.0 AT AN AMar 12, 2020 · N19HP · Cessna 182T · Magneto/DistributorSDR JRUR202003120012Impulse Coupling · unserviceableSLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS FOUND IN THE RIVETS, THE IMPULSE COUPLING MUST BE REJECTED. MAGNETO INSTALLED WITH TSN 0.0 AT AN AMar 12, 2020 · N19HP · Cessna 182T · Magneto/DistributorSDR JRUR202003060001Magneto · unserviceableSUPPLEMENTAL INFORMATION SLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF Mar 6, 2020 · N17HP · Cessna 182T · Magneto/DistributorSDR JRUR202003060003Magneto · unserviceableSLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS FOUND IN THE RIVETS, THE IMPULSE COUPLING MUST BE REJECTED. MAGNETO INSTALLED WITH TSN 493.9 AT ANMar 6, 2020 · N6HP · Cessna 182T · Magneto/DistributorSDR JRUR202003060004Magneto · unserviceableSLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS FOUND IN THE RIVETS, THE IMPULSE COUPLING MUST BE REJECTED. MAGNETO INSTALLED WITH TSN 0.0 AT AN AMar 6, 2020 · N311HP · Cessna 182T · Magneto/DistributorSDR JRUR202003060005Magneto · unserviceableSLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS FOUND IN THE RIVETS, THE IMPULSE COUPLING MUST BE REJECTED. MAGNETO INSTALLED WITH TSN 952.3 AT ANMar 6, 2020 · N113HP · Cessna 182T · Magneto/DistributorSDR JRUR2020030560002Magneto · unserviceableSLICK BY CHAMPION SB2-19A MANDATORY INSPECTION OF IMPULSE COUPLING. THE SB HAS YOU INSPECT THE IMPULSE COUPLING PER THE MAINTENANCE MANUAL. IF ANY MOVEMENT IS FOUND IN THE RIVETS, THE IMPULSE COUPLING MUST BE REJECTED. INSPECTED MAGNETO MODEL NO. 6351 P/N: Mar 5, 2020 · N17HP · Cessna 182T · Magneto/DistributorSDR 2020FA0000029Hose · crackedSEVERAL MONTHS AGO I HAD A STRONG SMELL OF GAS IN THE CABIN, IT WAS TRACED DOWN TO A CRACKED "RUBBER" HOSE BETWEEN THE WING TANK AND THE TUBE DOWN TO THE ENGINE. AT THE TIME I ASKED THE MECHANIC IF IT SHOULD BE REPORTED AND THE OTHER SIDE OF THE PLANE CHECKED,Jan 11, 2020 · N390ME · Cessna 182S · Aircraft Fuel Distribution SystemSDR CA190723009Wheel · damaged(CAN) DURING AN OPERATION 3 INSPECTION IT WAS DISCOVERED THAT BOTH LEFT AND RIGHT MAIN LANDING GEAR TIRES HAD BEEN EXPOSED TO A SKID WHICH RENDERED THE TIRES UNSERVICEABLE. AFTER REMOVING THE TIRES THE WHEEL HALVES WERE INSPECTED AND FOUND TO HAVE INTER-GRANULJul 22, 2019 · Cessna 182T · Wheel/Ski/FloatSDR JRUR201905060001Exhaust Valve · out of toleranceDURING PERFORMANCE OF SB 388C, IT WAS FOUND THAT THE NR 3 CYLINDER EXHAUST VALVE TO GUIDE CLEARANCE MEASURED .031". THIS EXCEEDS THE MAXIMUM ALLOWABLE CLEARANCE OF .030". THIS ENGINE WAS OVERHAUL. THE TOTAL TIME SINCE NEW IS NOT BEING LISTED AS IT IS NOT KNOWNMay 6, 2019 · N113HP · Cessna 182T · Reciprocating Engine Cylinder SectionSDR JRUR201905060002Exhaust Valve · out of toleranceDURING PERFORMANCE OF SB 388C, IT WAS FOUND THAT THE NR 4 CYLINDER EXHAUST VALVE TO GUIDE CLEARANCE MEASURED .031". THIS EXCEEDS THE MAXIMUM ALLOWABLE CLEARANCE OF .030". THIS ENGINE WAS OVERHAUL. THE TOTAL TIME SINCE NEW IS NOT BEING LISTED AS IT IS NOT KNOWNMay 6, 2019 · N113HP · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2018FA0000339Autopilot Sys · corruptedAUTOPILOT INTEGRATED WITH G1000 REFUSED TO DISCONNECT.Aug 20, 2018 · N365CA · Cessna 182T · Global Positioning SystemSDR 2018FA0000207Housing · damagedAIR FILTER HOUSING PN 07506212 DAMAGED AT THE OUTLET. SUSPECT DAMAGE WAS CAUSED BY OVER TIGHTENING OF THE CLAMP THAT SECURES THE RUBBER COUPLING TO THE DUCT. METAL TAPE WAS WRAPPED AROUND THE OUTLET PORTION OF THE HOUSING IN AN ATTEMPT TO REPAIR THE CRACKED Jul 10, 2018 · N661SP · Cessna 182S · Engine Air Intake SystemSDR 2017FA0000460Sprocket · brokenELEVATOR TRIM LOCKED UP IN FLIGHT. TRIM ACTUATOR SPROCKET FOUND TO BE BROKEN WHERE PIN ATTACHES IT TO ACTUATOR ASSEMBLY.Aug 23, 2017 · N153FC · Cessna 182T · Elevator Tab Control SystemSDR 2017FA0000303Bushing · spunDURING THE INSPECTION OF CONNECTING ROD BUSHING PER SB632A, TECHNICIAN FOUND 4 CONNECTING ROD BUSHINGS SPUN WHILE PERFORMING CHECK PER INSTRUCTIONS IDENTIFIED IN SB 632A.Aug 1, 2017 · N912EX · Cessna T182 · Reciprocating Engine Power SectionSDR 2017FA0000243Bearing · failedAFTER REMOVAL OF THE CYLINDER, FOUND THAT THE CRANKSHAFT MAIN BEARINGS FROM THE NR 6 CYLINDER WERE CRUSHED AND PARTS OF THEM MISSING, LATER FOUND THE REMAINING PIECES OF BEARING MATERIAL AND PIECES OF THE CONNECTING ROD END CAP, NUTS AND BOLTS IN THE OIL SUMP.Jun 12, 2017 · N378ES · Cessna 182S · Reciprocating Engine Power SectionSDR 2017FA0000103Pushrod · scoredDURING THE INSPECTION OF PUSHRODS FOUND TWO PUSHRODS AT THE NR 2 AND 6, SCORED BEYOND LIMITS. REPLACED THE PUSHRODS AND MATING ROCKER ARMS WITH NEW.Mar 17, 2017 · N962JB · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2017FA0000105Pushrod · scoredDURING INSPECTION OF PUSHRODS FOUND THE NR 5, 4, & 1 PUSHRODS WORN OUT OF TOLERANCE, BOTH PUSHRODS AND ROCKER ARMS REPLACED WITH NEW.Mar 17, 2017 · N361DB · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2017FA0000106Pushrod · scoredDURING THE PUSHROD INSPECTION FOUND THE NR 3, 4, 5, AND 6 PUSHRODS SCORED AND REPLACED.Mar 17, 2017 · N514NY · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2017FA0000090Pushrod · scoredDURING INSPECTION OF SA-167A FOUND THE NR 2 CYLINDER EXHAUST PUSHROD SCORED, REPLACED THE PUSHROD AND ROCKER ARM.Mar 7, 2017 · N404KR · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2017FA0000092Pushrod · scoredDURING INSPECTION OF PUSHRODS, FOUND NR 4 CYLINDER EXHAUST PUSHROD SCORED, REPLACED PER SA-167A.Mar 7, 2017 · N916WR · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2017FA0000086Pushrod · scoredFIVE PUSHRODS FOUND TO BE SCORED ON THE NR 5, 3 AND 4 CYLINDERS, FOUND DURING THE SA-167A INSPECTION.Mar 6, 2017 · N311SB · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2017FA0000087Pushrod · scoredFIVE PUSHRODS FOUND TO BE SCORED ON THE NR 5, 3 AND 4 CYLINDERS, FOUND DURING THE SA-167A INSPECTION.Mar 6, 2017 · N311SB · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2017FA0000051Pushrod · out of limitsDURING INSPECTION OF PUSHRODS, FOUND 6 PUSHRODS AND 6 ROCKER ARMS OUT OF LIMITS IN ACCORDANCE WITH SA-167A, PARTS REPLACED UNDER WARRANTY.Feb 9, 2017 · N514NY · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2017FA0000052Pushrod · wornINSPECTION SHOWS 10 OF THE PUSHRODS HAVE WEAR. THE MAINTENANCE PROVIDER SAID THE 10 PUSHRODS, ROCKER ARMS AND ALL OF THE VALVE ROCKER SHAFTS NEED TO BE REPLACED. ON 10 AUGUST 2012, TAC TIME 578.9 NR 3 CYLINDER WAS REPLACED. DURING THE CHANGE ABNORMAL WEAR WAFeb 9, 2017 · N984SJ · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2017FA0000053Pushrod · scoredINSPECTION REVEALED NR 5 CYLINDER, EXHAUST AND INTAKE, NR 3 CYLINDER EXHAUST AND INTAKE AND NR 4 CYLINDER EXHAUST AND INTAKE PUSHRODS SCORED BEYOND LIMITS AND REPLACED.Feb 9, 2017 · N311SB · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2017FA0000043Pushrod · scoredNR 1 INTAKE AND EXHAUST SCORED, NR 4 INTAKE AND EXHAUST SCORED, AND NR 5 EXHAUST SCORED, PARTS REPLACED PER SA-167A.Feb 3, 2017 · N361DB · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2017FA0000031Pushrod · scoredNR 2 AND 6 PUSHRODS AND ROCKER ARMS REPLACED FOR EXHAUST SIDE DUE TO SA-167A INSPECTION. SCORING IS OBVIOUS AND TRANSLATED TO ROCKER ARM AS WELL. REPLACED PARTS AS NECESSARY.Jan 30, 2017 · N962J · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2016FA0000672Pushrod · scored7 PUSHRODS AND 7 ROCKERS REQUIRE REPLACEMENT DUE TO INSPECTION CRITERIA FROM SA-167A. SCORING IS BEYOND LIMITS.Dec 28, 2016 · N182EM · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2016FA0000634Pushrod · scoredNR 3 CYLINDER PUSHRODS AND ROCKER REPLACED DUE TO INSPECTION IAW SA-167A. THERE WAS ALSO REPORTED STUCK VALVES AT THE NR 3 AND 6 EXHAUST VALVE ASSEMBLY.Dec 15, 2016 · N622FH · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2016FA0000629Pushrod · scoredTWO PUSHRODS AND MATING ROCKER ARMS HAVE SCORING THAT IS BEYOND THE LIMITS OF THE IAW SA-167A. PARTS REPLACED IN ACCORDANCE WITH SA.Dec 13, 2016 · N901RM · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2016FA0000630Pushrod · scoredTWO PUSHRODS AND ROCKER MATES SCORED, REPLACING PARTS IAW SA-167A.Dec 13, 2016 · N319KS · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2016FA0000603Pushrod · scoredALL PUSHRODS AND ROCKER ARMS REQUIRE REPLACEMENT DUE TO INSPECTION IAW SA-167A.Dec 7, 2016 · N461AJ · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2016FA0000604Pushrod · scoredNR 2 INTAKE AND NR 3 EXHAUST PUSHRODS HAVE SEVER SCORING ON THE ROCKER ARM END. REPLACING IN ACCORDANCE WITH SA-167A.Dec 7, 2016 · N901RM · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2016FA0000591Pushrod · scoredPUSHRODS INSPECTED PER SA-167A AND 6 PUSHRODS SHOW SIGNS OF SCORING.Dec 6, 2016 · N102BR · Cessna T182T · Reciprocating Engine Cylinder SectionSDR 2016FA0000593Pushrod · scoredPUSHROD SCORING ON THE ROCKER END SIDE WITH THE ROCKER SHOWING SIGNS OF SCORING AS WELL, REPLACED IAW SA-167A.Dec 6, 2016 · N562CB · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2016FA0000148Valve · stuckOWNER REPORTED LOSS OF POWER, EXTREMELY ROUGH RUNNING ENGINE, UNABLE TO MAINTAIN ALTITUDE, FORCED LANDING. ENGINE INSPECTION FOUND NR 4 CYLINDER EXHAUST VALVE STUCK OPEN, BENT PUSH-ROD AND ROD HOUSING. BORESCOPE INSPECTION OF THE CAMSHAFT LOBE, LIFTER FACE, RMar 2, 2016 · N2115K · Cessna 182T · Reciprocating Engine Cylinder SectionSDR 2015FA0000503Alternator · failedALTERNATOR FAILED TO CHARGE DURING CROSS COUNTRY FLIGHT. INSPECTION SHOWS SEPARATION OF ALTERNATOR CASE HALVES. CASE HALF THROUGH BOLTS HELD COMPONENT INTACT BUT RESULTED IN LOSE OR SLOPPY TOLERANCE ON DRIVE SHAFT MAIN BEARING AND FAILURE TO PRODUCE CURRENT.Oct 27, 2015 · N90HP · Cessna 182T · AC Generator-AlternatorSDR CA151013008Magneto · out of adjust(CAN) MAGNETO TIMING DRIFTED 5 DEGREES WITH ONLY 55 HOURS SINCE 500HR INSPECTION.Sep 29, 2015 · Cessna 182T · Magneto/DistributorSDR CA151013009Magneto · out of adjust(CAN) MAGNETO TIMING DRIFTED 7 DEGREES WITH ONLY 55 HRS SINCE 500HR INSPECTION.Sep 29, 2015 · Cessna 182T · Magneto/DistributorSDR 2015FA0000206Cylinder · crackedUPON REMOVAL OF ROCKER COVER FOR GASKET REPLACEMENT, THE OTBD ROCKER SHAFT ON THE EXHAUST WAS FOUND TO BE CRACKED. ON REMOVAL OF THE ROCKER SHAFT, THE BOSS CAME COMPLETELY OFF. THIS CYLINDER HAS NEVER HAD ANY WORK DONE TO IT AND MUST HAVE LEFT THE FACTORY CRMay 13, 2015 · N594CP · Cessna 182T · Reciprocating Engine Cylinder SectionSDR NJ5R2015FA0000198Baffle · warpedFORWARD MUFFLER BAFFLE ON MUFFLER SYSTEM IS WARPED AND DISTORTED AFTER 199 HRS IN SERVICE. BAFFLE MATERIAL IS TOO THIN FOR APPLICATION.Feb 19, 2015 · N632MR · Cessna 182T · Engine Noise Suppressor
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