# Service difficulty reports: Continental TSIO-550-C A list on [Continental TSIO-550-C](https://openairdocs.org/engine/continental-tsio-550-c.md). Newest first. General aviation reporting is voluntary. Page 1 of 2 · 81 reports - [SDR 2025FA0000068](https://openairdocs.org/sdr/2025FA0000068.md): Access Panel · damaged · Jan 29, 2025 · N240A · Lancar LC41550FG · Wing, Plate/Skin > LOWER RIGHT WING ACCESS PANEL, ORIGINAL P/N LB57650007-1 REV- HAS A NACA AIR SCOOP AIR DUCT THAT CONNECTS TO FUEL SYSTEM VENT SYSTEM. THIS PANEL RECEIVED A MINOR ALTERATION, BY INSTALLING THE BENDIX KING KLR-10 AOA SYSTEM HEATED PITOT TUBE ASSY P/N 89000008 - [SDR 2023FA0000569](https://openairdocs.org/sdr/2023FA0000569.md): Brake Disc · broken · Sep 26, 2023 · N814HH · Lancar LC41550FG · Brake > DURING THE ANNUAL INSPECTION, MAINTENANCE FOUND THE LH BRAKE DISC BROKEN APPROXIMATELY 4.5 INCHES IN LENGTH AND APPROXIMATELY 1/4 INCH IN WIDTH AROUND FLANGE WHERE THE BRAKE DISC ATTACHES TO THE WHEEL. - [SDR 2023FA0000309](https://openairdocs.org/sdr/2023FA0000309.md): Landing Gear · broken · May 17, 2023 · N372AT · Cessna T240 · Main Landing Gear Strut/Axle/Truck > RH MLG AXLE MOUNTING PLATE ASSY SHEARED COMPLETELY OFF OF MLG LEG/STRUT ASSY, WHERE LEG ASSY SLIDES INTO AXLE ASSY AND IS FASTENED. HAVE PHOTOS UPON REQUEST. - [SDR BIER2022011301](https://openairdocs.org/sdr/BIER2022011301.md): Manifold · chafed · Jan 13, 2022 · N667AF · Lancar LC41550FG · Engine Air Intake System > INDUCTION MANIFOLD P/N 655607 WAS REMOVED FROM CURRENT ENGINE MODEL TSIO-550C(11) DUE TO CHAFE DAMAGE. WHEN NEW REPLACEMENT MANIFOLD P/N 646440 WAS RECEIVED AND COMPARED TO DAMAGED MANIFOLD. NEW INDUCTION COULD NOT BE MOUNTED BECAUSE OF ALIGNMENT ISSUES. RESEA - [SDR BIER2021011333](https://openairdocs.org/sdr/BIER2021011333.md): Fairing · chafed · Jul 6, 2021 · N541AS · Cessna T240 · Aerodynamic Fairings > AIRCRAFT ARRIVED FOR ANNUAL INSPECTION IAW CESSNA 400/T240 AMM CHAPTER 5-20-00 INSPECTION CHECKLIST. DURING INSPECTION OF MLG, FOUND THE TOP OF BOTH MLG LEG FAIRINGS WERE CHAFING THE MLG GEARBOX SOCKETS. THE CHAFING DAMAGE ON THE MLG GEARBOX SOCKETS WAS DAMAGE - [SDR 2020FA0000001](https://openairdocs.org/sdr/2020FA0000001.md): Bolt · sheared · Jan 3, 2020 · N6509A · Lancar LC41550FG · Nose/Tail Landing Gear Strut/Axle > DURING OVERHAUL OF THE NLG FOUND THE BOLT WHICH HOLDS THE CENTERING CAMSHAFT TO THE NLG STRUT SHEARED AT THE THREADS. THE HEAD, SHANK AND THREADS OF THE BOLT REMAINED IN THE CENTERING CAMSHAFT BUT CAUSED MINOR WEAR TO THE UPPER TUBE ASSY AND CENTERING CAMSHAFT - [SDR 2019FA0000379](https://openairdocs.org/sdr/2019FA0000379.md): Leg Assy · cracked · Nov 16, 2019 · N915ML · Columb LC41550FG400 · Main Landing Gear > DURING COMPLIANCE WITH CESSNA SB11-32-01 ON THE RIGHT MAIN GEAR LEG A 3 INCH CRACK WAS FOUND EXTENDING UP THE GEAR LEG. THE CRACK ORIGINATED OUT OF THE UPPER AXLE MOUNTING HOLE. THIS CRACK WAS COMPLETELY HIDDEN UNDER THE AXLE AS IT SLIDES OVER AND COMPLETELY S - [SDR ESMR2019102501](https://openairdocs.org/sdr/ESMR2019102501.md): Pump · fluctuates · Oct 11, 2019 · N214HL · Columb LC41550FG400 · Engine Fuel Pump > THE PILOT FELT A SEVERE LOSS OF ENGINE POWER SHORTLY AFTER TAKEOFF AT 250 FT. AGL, AND MADE AN EMERGENCY LANDING ON A CROSSING, INACTIVE RUNWAY. FLIGHT DATA FROM THE AIRCRAFT SHOWED A DROP IN FUEL PRESSURE FROM 36.7 PSI TP 21 PSI. THE ENGINE DRIVEN FUEL PUMP W - [SDR BIER20190801001](https://openairdocs.org/sdr/BIER20190801001.md): Adapter · misoverhauled · Aug 1, 2019 · N401ST · Engine Cranking > NEWLY OVERHAULED STARTER ADAPTER WAS INSTALLED ON ENGINE. AFTER RE-ASSEMBLING REAR OF ENGINE WITH NEW ADAPTER, STARTER AND ALTERNATOR, THE ADAPTER WAS PRIMED WITH OIL FOR INITIAL ENGINE MOTORING. STARTER ADAPTER WOULD NOT CREATE THE PROPER SUCTION TO SCAVENG - [SDR 2019FA0000180](https://openairdocs.org/sdr/2019FA0000180.md): Pressure Switch · detached · May 30, 2019 · N2514F · Columb LC41550FG400 · Engine Oil Indicating System > IN FLIGHT, THE OIL PRESSURE SWITCH SEPARATED WHERE THE NIPPLE IS PRESSED INTO THE SWITCH HOUSING. THIS IS ONE INTEGRATED PART, NOT TWO PUT TOGETHER. THE PILOT NOTICED AN OIL PRESSURE CAS MESSAGE. CROSS CHECKED AGAINST OIL PRESSURE GAUGE, WHICH STILL SHOWED - [SDR BIER20180918001](https://openairdocs.org/sdr/BIER20180918001.md): Structure · cracked · Sep 12, 2018 · N543DR · Lancar LC41550FG · Fuselage Miscellaneous Structure > FUSELAGE AFT FOOTWELL RECESS LOWER CORNERS (FS 127.5) (LT & RT) HAVE DELAMINATIONS WITH LT AFT CORNER HAVING A CRACK 1.375 INCHES LONG. - [SDR NF2R2018082200001](https://openairdocs.org/sdr/NF2R2018082200001.md): Lifter · failed · Aug 22, 2018 · N588R · Cessna T240 · Reciprocating Engine Power Section > DISCOVERED METAL IN THE OIL FILTER DURING OIL CHANGE, DISCOVERED LOWER END OF VALVE LIFTERS PITTING, CHIPPING, AND SOME MUSHROOMING MAKING REMOVAL DIFFICULT. - [SDR 2018FA0000196](https://openairdocs.org/sdr/2018FA0000196.md): Cylinder Head · damaged · Jun 25, 2018 · N405JA · Lancar LC41550FG · Reciprocating Engine Cylinder Section > APPROXIMATELY 8 HOURS AFTER THE NR 5 CYLINDER WAS REPLACED WITH A NEW FACTORY CYLINDER KIT, THE PILOT NOTIFIED US THAT THE NR 5 CYLINDER WOULD NOT "WARM UP" AND THE ENGINE WAS RUNNING ROUGH. EXAMINED THE ENGINE DATA AND CONFIRMED THAT THE NR 5 WAS NOT GETTING - [SDR BIER20171017001](https://openairdocs.org/sdr/BIER20171017001.md): Washer · unsecure · Sep 6, 2017 · N588AM · Cessna T240 · Reciprocating Engine Cylinder Section > DURING MAINTENANCE, THE ENGINE HAD ROCKER COVERS LEAKING. REPLACED THE GASKET. TECHNICIAN FOUND THE LOCKING TAB WASHER WAS NOT BENT UP TO PREVENT SCREW FROM LOOSENING ON THE NR 3 & 5 CYLINDERS EXHAUST ROCKER SHAFT. LAST MAINTENANCE PREVIOUSLY ON THIS - [SDR 8PCR20170713001](https://openairdocs.org/sdr/8PCR20170713001.md): Valve Spring · broken · Jun 29, 2017 · N620VB · Cessna 550 · Reciprocating Engine Cylinder Section > DISASSEMBLY OF THE NUMBER 4 CYLINDER REVEALED THAT THE INNER AND OUTER EXHAUST VALVE SPRINGS WERE FRAGMENTED INTO FOUR AND TWO PIECES RESPECTIVELY. THE NUMBER 4 CYLINDER INTAKE EXHAUST VALVES EXHIBITED NORMAL OPERATING SIGNATURES EXCEPT FOR A SIGNIFICANT AMOU - [SDR BIER20160914001](https://openairdocs.org/sdr/BIER20160914001.md): Garlock Seal · leaking · Sep 9, 2016 · N5194Y · Magneto/Distributor > ACFT ARRIVED AT REPAIR STATION FOR OIL CHANGE AND INSPECTION ON RH BRAKE ASSEMBLY. DURING OIL CHANGE, FOUND CONSIDERABLE OIL LEAK ON TOP OF ENGINE, WITH OIL DRIPPING FROM BOTH MAGNETO VENTS. THE OIL LEAKAGE WAS CLEANED UP AND THE OIL CHANGE WAS COMPLETED. DURI - [SDR BIER20160517001](https://openairdocs.org/sdr/BIER20160517001.md): Valve · leaking · May 17, 2016 · N600TX · Lancar LC41550FG · Pitot/Static System > DURING THE PROCESS TO ACCOMPLISHING INSPECTION AND TESTING FOR CFR PART 91.411 AND \ 91.413, FOUND THE ALTERNATE STATIC VALVE CAUSING A LEAK THAT EXCEEDS LIMITS ABOVE 19K FEET, LEAKING 300 FPM. FOREMAN TRYED TO ORDER THE VALVE IAW THE IPC AND WAS TOLD THE BAS - [SDR YN8R2016031400001](https://openairdocs.org/sdr/YN8R2016031400001.md): Exhaust Pipe · chafed · Mar 14, 2016 · N179CS · Cessna T240 · Engine Collector/Tailpipe/Nozzle > THE RT ENGINE EXHAUST TAILPIPE, WAS FOUND TO BE INCORRECTLY INSTALLED OR MANUFACTURED. DURING FLIGHT, THE EXHAUST TAILPIPE CHAFED THE FIREWALL, PN 2813102-8 AND THE FLAME SHIELD, EXHAUST, PN 2813100-13. THE CHAFING PRODUCED A HOLE THROUGH THE FIREWALL. THI - [SDR BIER2016031500001](https://openairdocs.org/sdr/BIER2016031500001.md): Case · cracked · Mar 14, 2016 · N2730P · Lancar LC41550FG · Reciprocating Engine Power Section > CUSTOMER ARRIVED AT REPAIR STATION STATING HE HAD AN OIL LEAK. ENGINE COWLING WAS REMOVED TO DETERMINE SOURCE OF LEAK. INITIAL INSPECTION AND REPAIR WAS ON LEAKING CYLINDER STUDS ON NR 4 CYLINDER, LT SIDE OF ENGINE. NR 4 CYLINDER WAS SENT OFF FOR HONING AND - [SDR 2015FA0000661](https://openairdocs.org/sdr/2015FA0000661.md): Gear · stripped · Dec 24, 2015 · N932AC · Cessna 550 · Magneto/Distributor > DURING CRUISE FLIGHT, ACFT LOST POWER AND DID AN EMERGENCY LANDING. DURING INSPECTION, FOUND RT MAGNETO DISTRIBUTOR GEAR STRIPPED. - [SDR 2016FA0000084](https://openairdocs.org/sdr/2016FA0000084.md): Magneto · failed · Dec 8, 2015 · N932AC · Lancar LC41550FG · Magneto/Distributor > DUEL MAG FAILURE. RT MAGNETO HAD A STRIPPED GEAR. LT MAG TIMING WAS AS PER THE DATA PLATE. BOTH MAGS WERE PICKED UP BY THE NTSB. - [SDR BIER2015FA0000499](https://openairdocs.org/sdr/BIER2015FA0000499.md): Skin · burned · Oct 22, 2015 · N600TX · Columb LC41550FG400 · Rudder, Plate/Skin > DURING AIRCRAFT POST-FLIGHT INSPECTION, OPERATOR OBSERVED BURN DAMAGE IN PAINTED SURFACES ON FUSELAGE AND SOME CONTROLS WHICH INDICATED POSSIBLE LIGHTNING STRIKE. ACFT WAS ENTERED INTO MAINTENANCE. ACFT WAS NOTIFIED OF THE DAMAGE. - [SDR CA151023002](https://openairdocs.org/sdr/CA151023002.md): Retainer · cracked · Oct 1, 2015 · Cessna T240 · Flight Compartment Windows > (CAN) RT WINDSHIELD RETAINER CRACKED IN LOWER RT CORNER. CRACK EXTENDS 1/2" OUT FROM EDGE OF RETAINER. - [SDR VNFR20150615001](https://openairdocs.org/sdr/VNFR20150615001.md): Fuel Line · loose · Jun 12, 2015 · N2535P · Columb LC41550FG400 · Engine Fuel Distribution > CUSTOMER REQUESTED THAT THE ENG BE REMOVED & SENT TO CRS BJ3R399L, REPAIR. RECEIVED ENG BACK WITH REPAIRED 8130 & PAPERWORK. INSTALLED ENG IN & SET FUEL FLOW IAW M 18 & 400MM04 MM. NO LEAKS WERE NOTED AFTER SEVERAL SHORT GND RUNS. A COMPANY PILOT FLEW A 20 - [SDR DGCA2015042800163](https://openairdocs.org/sdr/DGCA2015042800163.md): Exhaust Pipe · broken · Apr 23, 2015 · N6914Y · Piper PA46310P · Cabin Pressure Control System > PILOT STATED LOSS OF PRESSURIZATION AND DECREASED MANIFOLD PRESSURE. EXHAUST PIPE BROKEN. - [SDR YN8R201503120001](https://openairdocs.org/sdr/YN8R201503120001.md): Controller · failed · Mar 11, 2015 · Cessna T240 · Exhaust Turbocharger > DURING FLIGHT, LOST PARTIAL POWER. RETURNED FOR LANDING. DURING MAINTENANCE RUN THE NEXT MORNING, FOUND THE WASTEGATE CONTROLLER, WAS NOT RESPONDING PROPERLY TO ADJUSTMENTS. R & R CONTROLLER - [SDR CA150315001](https://openairdocs.org/sdr/CA150315001.md): Probe · loose · Mar 7, 2015 · Columb LC41550FG400 · Exhaust Turbocharger > (CAN) LT TURBO CHARGER TURBINE INLET TEMPERATURE, TIT, PROBE FOUND HANGING AND LOOSE IN ENGINE COMPARTMENT. HEAT STAINS FORMED ON THE INSIDE LT SIDE OF THE LOWER COMPOSITE ENGINE COWLING. PROBE MAY NOT HAVE BEEN CORRECTLY INSTALLED AND TORQUED AT RECENT INST - [SDR BIER2015FA0000056](https://openairdocs.org/sdr/BIER2015FA0000056.md): Window · cracked · Feb 9, 2015 · N5194Y · Cessna 550 · Passenger Compartment Windows > FOUND LT AFT SIDE WINDOW CRACKED. CRACK IS LOCATED AT THE LOWER FORWARD CORNER OF THE WINDOW AND THE CRACK EXTENDS INTO THE COMPOSITE FRAME. THERE'S NO SIGN ON ANY IMPACT DAMAGE. - [SDR YN8R12152014BH1](https://openairdocs.org/sdr/YN8R12152014BH1.md): Impulse Coupling · binding · Dec 15, 2014 · N329CS · Cessna T240 · Magneto/Distributor > ACFT VERY HARD TO START. MAGNETOS HAD BEEN CHANGED PREVIOUSLY 25.7 HRS BEFORE. BROUGHT ACFT INTO HANGAR, REMOVED IGNITION PLUGS. WHEN TURNING ENGINE TO CHECK TIMING, NO IMPULSE COUPLING "CLICK" WAS HEARD. REMOVED BOTH MAGNETOS AND FOUND ALL THE FLYWEIGHTS - [SDR YN8R2014121500001](https://openairdocs.org/sdr/YN8R2014121500001.md): Impulse Coupling · binding · Dec 15, 2014 · N329CS · Cessna T240 · Magneto/Distributor > ACFT VERY HARD TO START. MAGNETOS HAD BEEN CHANGED PREVIOUSLY 25.7 HRS BEFORE. BROUGHT ACFT INTO HANGAR, REMOVED IGNITION PLUGS. WHEN TURNING ENGINE TO CHECK TIMING, NO IMPULSE COUPLING "CLICK" WAS HEARD. REMOVED BOTH MAGNETOS AND FOUND ALL THE FLYWEIGHTS - [SDR H6MR2014121745546](https://openairdocs.org/sdr/H6MR2014121745546.md): Cylinder · separated · Nov 9, 2014 · N9221M · Piper PA46310P · Reciprocating Engine Cylinder Section > AFTER TAKEOFF ACFT WAS CLIMBING THROUGH 8000' WHEN OWNER/PILOT EXPERIENCED A "POP" FOLLOWED BY IMMEDIATE ENGINE ROUGHNESS. PILOT REDUCED POWER AND RETURNED TO DEPARTURE. AFTER SAFE RETURN AND TAXI TO AIRPORT RAMP, PILOT NOTICED A SIGNIFICANT AMOUNT OF OIL CO - [SDR NF2R201812190001](https://openairdocs.org/sdr/NF2R201812190001.md): Lifter · galled · Sep 12, 2014 · N86ND · Lancar LC41550FG · Reciprocating Engine Power Section > INSPECTION OF ALL 6 CYLINDERS FOUND 5 OUT OF LIMITS AND ALL CYLINDERS HAD BAD EXHAUST AND INTAKE GUIDES AND VALVES. FOUND LIFTERS ARE PITTED AND STARTING TO CHIP, CAMSHAFT IS UNDAMAGED AT THIS TIME. - [SDR CA140410009](https://openairdocs.org/sdr/CA140410009.md): Screen · contaminated · Apr 9, 2014 · Columb LC41550FG400 · Engine Fuel Distribution > (CAN) FUEL MANIFOLD VALVE ASSY SCREEN REMOVED AND A FAIR AMOUNT OF LINT TYPE DEBRIS WAS FOUND. BELIEVE THERE WAS A SB TO ADDRESS THIS SAME LINT TYPE DEBRIS ISSUE. - [SDR BIER2014FA0000094](https://openairdocs.org/sdr/BIER2014FA0000094.md): Strut · cracked · Feb 20, 2014 · N1310M · Columb LC41550FG400 · Nose/Tail Landing Gear Strut/Axle > DURING LANDING, EXPERIENCED NOSE WHEEL SHIMMY AFTER TWO LANDINGS FROM PREVIOUS NOSE STRUT SERVCING. MECHANIC REMOVED THE NOSE STRUT FOR SERVICING PROCEDURE. STRUT WAS INSPECTED AND A.3750" CRACK IN THE STRUT CYLINDER HSG WAS FOUND AT THE RECESSED AREA FOR - [SDR 2013FA0000641](https://openairdocs.org/sdr/2013FA0000641.md): Control Rod · worn · Nov 18, 2013 · N1604 · Lancar LC40550FG · Trailing Edge Flap Control System > LEFT FLAP CONTROL ROD HAS EXCESSIVE PLAY. THE ROD ASSEMBLY IS PN LA57263101 WHICH IS CONTRUCTED BY PN 286102-8 FOR THE URETHANE INSULATOR AND PN 2562102-3 AND 2862102-1. THE URETHANE INSULATOR IS MOUNTED IN BETWEEN BOTH METAL CONTROL ROD SECTIONS AND HELD TOGE - [SDR 2013FA0000353](https://openairdocs.org/sdr/2013FA0000353.md): Slip Joint · leaking · Jun 18, 2013 · N1302C · Columb LC41550FG400 · Engine Collector/Tailpipe/Nozzle > EXHAUST LEAK AT THE SLIP JOINT BETWEEN THE RT TURBO TRANSITION ON NR 1 CYLINDER EXHAUST RISER IGNITED NEARBY WIRING CAUSING AN ENGINE FIRE. FIRE WAS ON THE GROUND AND DISCOVERED AFTER SHUTDOWN. - [SDR 2013FA0000354](https://openairdocs.org/sdr/2013FA0000354.md): Transition Duct · punctured · Jun 18, 2013 · N5500X · Columb LC41550FG400 · Engine Collector/Tailpipe/Nozzle > HOLE FOUND IN THE RIGHT TURBO TRANSITION. - [SDR 2013FA0000355](https://openairdocs.org/sdr/2013FA0000355.md): Shaft · fractured · Jun 18, 2013 · N369BW · Columb LC41550FG400 · Exhaust Turbocharger > AIRCRAFT WAS IN A CLIMB THROUGH 19,000 FEET AND THE PILOT REPORTED LOSS OF POWER. AN EMERGENCY DESCENT AND UNSCHEDULED LANDING WAS SET. AS PLANE REACHED A LOWER ALTITUDE, SOME POWER WAS RESTORED. ON LANDING, INSPECTION REVEALED THAT THE SHAFT BETWEEN THE COM - [SDR VNFR20130618001](https://openairdocs.org/sdr/VNFR20130618001.md): Spark Plug · cracked · Jun 18, 2013 · N1036P · Lancar LC41550FG · Spark Plug/Igniter > CRACKED CERAMIC ON NR 5 LOWER SPARK PLUG. - [SDR 2013FA0000328](https://openairdocs.org/sdr/2013FA0000328.md): Fan · failed · May 17, 2013 · N2521W · Lancar LC41550FG · DC Generating System > DURING CRUISE FLIGHT, HEARD A BANG AND THEN SAW A METAL OBJECT COME THROUGH HIS TOP ENGINE COWLING. LANDED AT THE NEAREST AVAILABLE AIRPORT. COOLING FAN ASSY, ALTERNATOR, THAT MOUNTS ON REAR OF ENGINE SEPARATED FROM ALTERNATOR. THE FAN PIECES BECAME PROJ - [SDR CA130117011](https://openairdocs.org/sdr/CA130117011.md): Points · worn · Jan 15, 2013 · Magneto/Distributor > (CAN) PILOT REPORTED A RT MAGNETO ROUGH CONDITION DURING PRE-FLIGHT GROUND RUN UP CHECKS, PILOT DESCRIBED AN APPROXIMATELY 700 RPM DROP WHEN RT MAGNETO WAS SELECTED. THE RT MAGNETO WAS REMOVED AND INSPECTED AND THE FAULT WAS FOUND TO BE WITH THE POINTS NOT OP - [SDR 2012FA0000792](https://openairdocs.org/sdr/2012FA0000792.md): Exhaust Pipe · cracked · Dec 4, 2012 · N235MT · Columb LC41550FG400 · Engine Collector/Tailpipe/Nozzle > FOUND A LARGE CRACK WAS PRESENT IN THE RT TURBO TRANSITION. PERFORMED AN EXHAUST SYS PRESSURE TEST AND CONFIRMED THE PRESENCE OF THE CRACK. - [SDR 2012FA0000793](https://openairdocs.org/sdr/2012FA0000793.md): Exhaust Pipe · cracked · Dec 4, 2012 · N619VB · Lancar LC41550FG · Engine Collector/Tailpipe/Nozzle > DURING A 50 HOUR INSPECTION, A LARGE CRACK WAS FOUND THAT NEARLY CIRCLED THE ENTIRE TRANSITION. LOWER HALF OF TURBO TRANSITION WAS VERY CLOSE TO SEPARATING FROM THE REMAINING EXHAUST. - [SDR VNFR20121204002](https://openairdocs.org/sdr/VNFR20121204002.md): Exhaust Duct · cracked · Dec 4, 2012 · N235MT · Columb LC41550FG400 · Engine Collector/Tailpipe/Nozzle > FOUND A LARGE CRACK WAS PRESENT IN THE RIGHT TURBO TRANSITION. TECHS PERFORMED AN EXHAUST SYSTEM PRESSURE TEST TO CONFIRM THE PRESENCE OF THE CRACK. REPLACED TRANSITION. - [SDR 2012FA0000439](https://openairdocs.org/sdr/2012FA0000439.md): Wire · burned · Jun 13, 2012 · N888NK · Cessna 550 · Navigation System Wiring > INVESTIGATED PROBLEM OF SMOKE IN COCKPIT. SMOKE APPEARED TO BE COMING OUT OF THE ANTI-FOG VENTS. AFTER FURTHER INVESTIGATION SOME WIRING BEHIND COPILOTS MFD WERE FOUND TO BE SHORTED. IN MECHANIC`S OPINION, WIRING TO THE K10 RELAY CHAFED INSIDE HEAT SHRINKE - [SDR 2012FA0000376](https://openairdocs.org/sdr/2012FA0000376.md): Seal · split · Jun 6, 2012 · N29HH · Columb LC41550FG400 · Reciprocating Engine Power Section > ENGINE CRANK SHAFT SEAL SPLIT ALONG SEAL FACE. ENGINE WAS LOOSING OIL THRU SEAL. - [SDR VNFR20121204001](https://openairdocs.org/sdr/VNFR20121204001.md): Wastegate Valve · cracked · May 10, 2012 · N799ME · Columb LC41550FG400 · Exhaust Turbocharger > SMALL CRACK NOTED ABOVE WASTEGATE - OTBD SIDE OF TRANSITION. - [SDR 2012FA0000103](https://openairdocs.org/sdr/2012FA0000103.md): Spark Plug · cracked · Feb 9, 2012 · N762CS · Lancar LC41550FG · Spark Plug/Igniter > RT B32S SPARK PLUGS HAVE CRACKED PORCELAIN, QTY 6 OUT OF 12, FOUND DURING ANNUAL INSPECTION. - [SDR 2012FA0000002](https://openairdocs.org/sdr/2012FA0000002.md): Throttle Arm · seized · Dec 20, 2011 · N408AB · Cessna 550 · Power Lever > PILOT REPORTED THROTTLE VERY HARD TO MOVE. UPON INSPECTION, THE THROTTLE ARM WAS FOUND TO BE SEIZED AFTER THE THROTTLE CONTROL WAS REMOVED. THROTTLE ASSY WAS REMOVED FROM THE ENGINE AND THE THROTTLE AREM COULD NOT BE MOVED. NO VISIBLE SIGNS OF ANY OTHER DAM - [SDR 2011FA0000794](https://openairdocs.org/sdr/2011FA0000794.md): Spark Plug · defective · Dec 16, 2011 · N225KW · Columb LC40550FG300 · Spark Plug/Igniter > PILOT REPORTED HIGH MAGNETO DROP DURING PRE-RUN CHECK. NR 3 CYLINDER BOTTOM SPARK PLUG WAS FOUND TO HAVE ENTIRE CERAMIC MISSING. BORESCOPE OF CYLINDER REVEALED NO INTERNAL DAMAGE. Next page: https://openairdocs.org/engine/continental-tsio-550-c/reports.md?page=2 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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 = 'TSIO550C' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/engine/continental-tsio-550-c/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.