# Service difficulty reports: Continental IO-550-B

A list on [Continental IO-550-B](https://openairdocs.org/engine/continental-io-550-b.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 3 · 133 reports

- [SDR 2026FA0000624](https://openairdocs.org/sdr/2026FA0000624.md): Bolt · corroded · Aug 6, 2026 · N7203N · Beech V35A · Fuselage, Wing Attach Fittings
  > PER BEECH SI 0572-031 AND BEECH SERVICE MANUAL, 35590096B, REISSUED: NOVEMBER 15, 1960; 35-590096B21, REVISED: AUGUST 29, 2003, PAGE 4-4M, THE WING BOLTS ARE TO BE MAGNETICALLY INSPECTED EVERY FIVE (5) YEARS AND REPLACED EVERY FIFTEEN (15) YEARS. SINCE MOST
- [SDR 2025FA0000428](https://openairdocs.org/sdr/2025FA0000428.md): Spark Plug · broken · Jun 26, 2025 · N176X · Beech A36 · Spark Plug/Igniter
  > NR 4 EGT WAS NOTED TO BE HIGHER THAN BASELINE AND THE ENGINE WAS RUNNING ROUGH. MECHANIC REMOVED THE #4 PLUGS AND FOUND THE CENTER ELECTRODE ON THE BOTTOM PLUG WAS MISSING. TESTED THE PLUG AND IT DID NOT FIRE. BORESCOPE OF THE CYLINDER LOOKED OK. A NEW PLUG WA
- [SDR 2025FA0000065](https://openairdocs.org/sdr/2025FA0000065.md): Engine · destroyed · Jan 13, 2025 · N144TD · Beech A36 · Engine (Reciprocating)
  > DURING CRUISE FLIGHT AT 7500 FT. THERE WAS A SUDDEN LOUD BANG AND VIBRATION. THE COCKPIT FILLED WITH SMOKE AND THE WINDSCREEN COVERED IN OIL. UPON A VISUAL INSPECTION OF THE ENGINE THERE WAS MULTIPLE HOLES IN THE ENGINE CASE. THE LARGEST HOLE WAS BETWEEN CYLIN
- [SDR 2024FA0000957](https://openairdocs.org/sdr/2024FA0000957.md): Alternator · faulted · Oct 29, 2024 · Raythn G36 · DC Generator-Alternator
  > ALTERNATOR WOULD INTERMITTENTLY GO OFF-LINE. ULTIMATELY HIGH FIELD RESISTANCE WAS DETERMINED TO BE A FACTOR....VOLTAGE REGULATOR AND ALTERNATOR WERE REPLACED. CONTINENTAL SB23-4 WAS COMPLIED WITH IN CONJUNCTION
- [SDR 2024FA0000775](https://openairdocs.org/sdr/2024FA0000775.md): Cylinder Head · cracked · Oct 16, 2024 · N314CP · Cirrus SR22 · Reciprocating Engine Cylinder Section
  > PILOT REPORTED THAT THEY TOOK OFF AT KESN AND SHORTLY HAD A SIGNIFICATE LOSE OF POWER AND FELT ROUGH. TURNED AROUND AND LANDED BACK AT KESN. AFTER REMOVING COWLING FOUND THAT #3 CYLINDER LOWER EXHAUST SIDE OF CYLINDER HEAD WAS CRACKED HAD BROKEN FREE. THE ONL
- [SDR 2024FA0000492](https://openairdocs.org/sdr/2024FA0000492.md): Engine · vibration · Jul 4, 2024 · N334KW · Beech F33A · Engine (Reciprocating)
  > AFTER TAKEOFF FROM KBIL, PILOT NOTICED VIBRATION FROM ENGINE. PILOT RETURNED TO KBIL WITHOUT INCIDENT.
- [SDR 2022FA0000467](https://openairdocs.org/sdr/2022FA0000467.md): None · none · Aug 18, 2022 · N745SL · Raythn G36 · Engine Starting System
  > FOR AIRCRAFT N745SL MODEL G36 SN: E-3804 HOBBS: 789.7 IN MARCH 2022 THE STARTER ADAPTER WAS SENT OUT FOR OVERHAUL TO AN APPROVED VENDOR, WESTERN SKYWAYS, INC CRS NO. WS9R575J. THE OWNER OF N745SL E-3804 HAS RECENTLY REQUESTED TO HAVE THE ENGINE OVERHAULED
- [SDR 2022FA0000210](https://openairdocs.org/sdr/2022FA0000210.md): Cylinder · separation · Apr 13, 2022 · N80DC · Beech A36 · Engine (Reciprocating)
  > #5 CYLINDER HEAD SEPARATED FROM THE CYLINDER BETWEEN THE 5TH AND 10TH COOLING FINS ON CLIMB OUT. THERE WAS EVIDENCE OF EXHAUST BLOWBY ON APPROXIMATELY 1/3 OF THE CIRCUMFERENCE OF THE CRACKED CASTING, PRIOR TO THE COMPLETE FAILURE OF THE CYLINDER. THE AIRCRAFT
- [SDR 2022FA0000065](https://openairdocs.org/sdr/2022FA0000065.md): Crankcase · none · Jan 31, 2022 · N389 · Powerplant System
  > CUSTOMER REPORTED A CRACK THAT WAS FOUND BETWEEN THE #1 AND #3 CYLINDER DECK AT THE 7TH STUD LOCATION. THE ENGINE WAS OVERHAULED PREVIOUSLY WITH ONLY 24.21 HOUR RECORDED. THE CRANKCASE WAS A CASE THAT HAD BEEN REPAIRED BY CRANKCASE SERVICES IN SAND SPRINGS OK.
- [SDR 2021FA0000120](https://openairdocs.org/sdr/2021FA0000120.md): Exhaust Mixer · detached · Apr 30, 2021 · N43BB · Beech F33A · Exhaust Turbocharger
  > EXHAUST ASSEMBLY MANIFOLD FAILURE AT FULL POWER. PIPE BROKE OFF MANIFOLD ASSEMBLY INLET TO TURBO HEAT MELTED PLENUM DUCTING RESULTING IN SMOKE IN COCKPIT. PILOT CLOSED FIREWALL VALVE
- [SDR 2020FA0000299](https://openairdocs.org/sdr/2020FA0000299.md): Bolt · overtorqued · Apr 1, 2020 · N1354Z · Beech N35 · Turbine Engine Accessory Drive
  > UNCOMMANDED PROPELLER OVER SPEED, AND LOSS OF RPM CONTROL ON A NEWLY MANUFACTURED PISTON ENGINE POSSIBLY CAUSED BY ACCESSORY GEAR RETENTION BOLTS OVERTORQUED AT ASSEMBLY. -1.3 HOURS INTO A FLIGHT ON A NEW ENGINE, EXPERIENCED A SUDDEN UNCOMMANDED ENGINE OVERS
- [SDR CT3R435L68495](https://openairdocs.org/sdr/CT3R435L68495.md): Screw · overtorqued · Apr 1, 2020 · N1354Z · Beech N35 · Engine (Reciprocating)
  > ENGINE OVERSPEED IN FLIGHT, LOSS OF PROP CONTROL, LANDED WITHOUT INCIDENT. INSPECTED ON SITE BY LOYD'S AIRCRAFT AND FOUND LOOSE PROP BOLTS, AND METAL CONTAMINATION IN OIL PRESSURE RELIEF VALVE. METAL CONTAMINATION WAS ALSO FOUND IN THE OIL FILTER. ENGINE WAS R
- [SDR 2019FA0000314](https://openairdocs.org/sdr/2019FA0000314.md): Crankshaft · fractured · Sep 23, 2019 · N80WH · Beech F33A · Reciprocating Engine Power Section
  > CRANKSHAFT FRACTURE RESULTING IN INFLIGHT ENGINE FAILURE. FOUND DURING ACCIDENT INVESTIGATION.
- [SDR YN82020F00000](https://openairdocs.org/sdr/YN82020F00000.md): Exhaust Stack · cracked · Jun 3, 2019 · N836BC · Raythn G36 · Engine Collector/Tailpipe/Nozzle
  > DURING OIL CHANGE, WITH THE RIGHT HAND LOWER COWL PANEL REMOVED, NOTICED THE AERODUCT HAVING EXHAUST RESIDUE ON IT. INSPECTED THE EXHAUST STACK AND FOUND THE LOWER FORWARD SEAM OF THE STACK TO BE SPLIT ABOUT 5 INCHES ABOVE THE MUFFLER ASSEMBLY. THE AREA OF T
- [SDR 2019FA0000098](https://openairdocs.org/sdr/2019FA0000098.md): Door · open · Mar 26, 2019 · N7225C · Beech A36 · Passenger/Crew Doors
  > THE DOOR INADVERTENTLY OPENED ON TAKEOFF RIGHT AT ROTATION. THE OPEN DOOR CAUSED THE ANGLE OF ATTACK INDICATOR TO INDICATE AN IMMINENT STALL ON TAKEOFF DESPITE INITIATING A CLIMB AT VY. THE AOA CONTINUED TO INDICATE AN IMMINENT STALL DESPITE SAFE AIR SPEEDS.
- [SDR 2019FA0000238](https://openairdocs.org/sdr/2019FA0000238.md): Crankcase · cracked · Mar 5, 2019 · N871CS · Beech A36 · Reciprocating Engine Power Section
  > DEPARTED (MEZ) TO (JBR) ON A VFR FLIGHT, EXPERIENCED ROUGH RUNNING ENGINE, LOSS OF OIL PRESSURE, AND SUBSEQUENT ENGINE FAILURE APPROXIMATELY 40 MINUTES INTO THE FLIGHT. THE PILOT LANDED IN AN OPEN FIELD. INVESTIGATION REVEALED THE ENGINE FAILED TO A MAIN BEARI
- [SDR 2018FA0000145](https://openairdocs.org/sdr/2018FA0000145.md): Spring · broken · Apr 17, 2018 · N676KM · Raythn G36 · Power Lever
  > WHILE PERFORMING AN OIL CHANGE, OBSERVED BROKEN THROTTLE SPRING. THE SPRING GOES ON THE THROTTLE BODY SENDING ENGINE TO FULL THROTTLE IN THE EVENT THE THROTTLE CABLE WERE TO BREAK.
- [SDR 2016FA0000474](https://openairdocs.org/sdr/2016FA0000474.md): Bracket · bent · Oct 6, 2016 · N6658K · Beech V35B · Fuselage Miscellaneous Structure
  > DURING A MAINTENANCE, THE UP LIMIT SWITCH WAS PUSHED DOWN WITH ENOUGH FORCE TO BEND THE LIMIT SWITCH MOUNTING BRACKET ASSEMBLY. IN DOING SO, THE POSITION OF THE LIMIT SWITCH WAS LOWERED JUST ENOUGH FOR THE LIMIT SWITCH ACTIVATING SCREW TO PASS OVER THE UP LIM
- [SDR 2016FA0000197](https://openairdocs.org/sdr/2016FA0000197.md): Check Valve · clogged · Apr 26, 2016 · N8260W · Beech A36 · Reciprocating Engine Oil System
  > ACFT MADE AN OFF AIRPORT LANDING DUE TO THE ENGINE LOSING OIL PRESSURE AND THEN QUITTING. A CONNECTING ROD WAS FOUND PROTRUDING THROUGH THE CASE UPON LANDING. THIS ACFT HAD A NORMALIZING SYSTEM INSTALLED APPROXIMATELY 4 YEARS AND 400 HRS AGO. DURING INVESTI
- [SDR 14XR20160412001](https://openairdocs.org/sdr/14XR20160412001.md): Pump · intermittent · Mar 22, 2016 · N596DS · Raythn G36 · Fuel Boost Pump
  > AFTER 1 HOUR WE WERE INSTRUCTED BY THE MAINTENANCE SHEET TO REDUCE POWER TO 65 PERCENT THEN ALTERNATE BACK TO 75 PERCENT. WE DECIDED WE WOULD DO THIS EVERY 15 MINUTES, AS THERE WAS NO TIME LISTED ON THE MAINTENANCE SHEET. WE REDUCED THE POWER TO 23" MANIFOLD
- [SDR 2015FA0000312](https://openairdocs.org/sdr/2015FA0000312.md): Gland Nut · wrong part · Jul 6, 2015 · N18255 · Beech T34A · Reciprocating Engine Power Section
  > REMOVED NR 4 CYLINDER FOR REPAIR DUE TO LOW COMPRESSION, EXHAUST VALVE, FOUND CRACKED BUSHING IN CONNECTING ROD FOR WRIST PIN. REMOVED FOR REPAIR AND FOUND INCORRECT NUTS INSTALLED ON CONNECTING ROD ATTACH BOLTS. FURTHER INSPECTION REVEALED ALL CONNECTING RO
- [SDR 2015FA0000354](https://openairdocs.org/sdr/2015FA0000354.md): Manifold · cracked · Jul 3, 2015 · N421P · Beech A36 · Engine Collector/Tailpipe/Nozzle
  > THE ACFT WAS INVOLVED IN AN INFLIGHT EMERGENCY AND WAS VECTORED TO LAND WITH NO FURTHER INCIDENT. SHORTLY AFTER THE PILOT DECLARED THE EMERGENCY FOR AN ELECTRICAL SYSTEM FAILURE, SMOKE ENTERED THE COCKPIT. THE SMOKE MOST LIKELY ENTERED THROUGH THE FLOOR VENT
- [SDR 2015FA0000257](https://openairdocs.org/sdr/2015FA0000257.md): Bevel Gear · separated · Jun 3, 2015 · N394EA · Beech A36 · Reciprocating Engine Front Section
  > REMOVED AND REINSTALLED NEWLY O/H PROPELLER GOVENOR BECAUSE OF SLUGGISH ACTION. TECH SUPPORT RECOMMENDED FLIGHT CHECK. DURING TAKEOFF CLIMB PORTION OF CHECK FLIGHT, ENGINE RPM INCREASED TO 2855 RPM, REDLINE IS 2700 RPM. GOVERNING ACTION WAS LOST. ENGINE SU
- [SDR NF2R201812200001](https://openairdocs.org/sdr/NF2R201812200001.md): Lifter · galled · Feb 25, 2015 · N364MW · Raythn G36 · Reciprocating Engine Power Section
  > INSPECTION FOUND #1 CYLINDER EXHAUST LIFTER IN EARLY STAGES OF SPALLING AS REFERENCED IN TCM SID05-1.
- [SDR 2015FA0000052](https://openairdocs.org/sdr/2015FA0000052.md): Nut · split · Feb 2, 2015 · N343AB · Beech A36 · Reciprocating Engine Cylinder Section
  > DURING ANNUAL INSPECTION FOUND NUT MISSING FROM NR 6 CYLINDER THROUGH STUD, UPPER FORWARD STUD. FOUND NUT IN BOTTOM OF COWLING. NUT WAS SPLIT. REMOVED ENGINE FOR INTERNAL INSPECTION DUE TO LOSS OF CRANKSHAFT BEARING PRELOAD. 42.9 HOURS SINCE LAST ANNUAL.
- [SDR 2015FA0000053](https://openairdocs.org/sdr/2015FA0000053.md): Nut · split · Feb 2, 2015 · N343AB · Beech A36 · Reciprocating Engine Cylinder Section
  > DURING ANNUAL INSPECTION, FOUND NUT MISSING FROM NR 6 CYLINDER THROUGH STUD, UPPER FORWARD STUD. FOUND NUT IN BOTTOM OF COWLING. NUT WAS SPLIT. REMOVED ENGINE FOR INTERNAL INSPECTION DUE TO LOSS OF CRANKSHAFT BEARING PRELOAD. 42.9 HOURS SINCE LAST ANNUAL.
- [SDR KC2R0130201549748](https://openairdocs.org/sdr/KC2R0130201549748.md): Impulse Coupling · cracked · Jan 30, 2015 · N12B · Beech A36 · Magneto/Distributor
  > IMPULSE COUPLING FOUND TO BE CRACKED AT ADVANCE STOP NOTCHES OF BASE PLATE. DEFECT WAS DISCOVERED USING MAGNETIC PARTICLE INSPECTION OF PART DURING PERFORMANCE OF MANUFACTURERS RECOMMENDED-500 HOUR INSPECTION. WE HAVE SEEN THIS SAME DEFECT ON A VERY LARGE PE
- [SDR KC2R0821201449286](https://openairdocs.org/sdr/KC2R0821201449286.md): Impulse Coupling · cracked · Aug 21, 2014 · Beech A36 · Magneto/Distributor
  > DURING A 500 HOUR INSPECTION OF MAGNETOS, IMPULSE COUPLING ON EACH MAG WAS FOUND TO HAVE CRACKS IN THE HUB BASE PLATE, LOCATED AT THE FULL ADVANCE STOP NOTCH. CRACKS RADIATE FROM THE SHARP-CORNERED FEATURE OF THE NOTCH OF THE PLATE. DEFECT DETECTED USING MAG
- [SDR BWVR20140708001](https://openairdocs.org/sdr/BWVR20140708001.md): Spline · worn · Jul 6, 2014 · N552CM · Beech A36 · Power Lever
  > PILOT DECLARED AN IN-FLIGHT EMERGENCY, THROTTLE STUCK OPEN, ON FINAL APPROACH PILOT SHUTDOWN THE ENGINE AND LANDED SAFELY. PILOT REPORTED NO THROTTLE CONTROL BUT PROP AND MIXTURE CONTROLS WORKED. HAD NO ABNORMAL EXHAUST GAS TEMPERATURES OR CYLINDER HEAD TEMP
- [SDR J4YR201406149901](https://openairdocs.org/sdr/J4YR201406149901.md): Cylinder · cracked · Jun 16, 2014 · N5537X · Beech A36 · Reciprocating Engine Cylinder Section
  > DURING AN ANNUAL INSPECTION, DISCOVERED THE NR 2 AND NR 6 CYLINDERS WERE CRACKED AND LEAKING ON THE EXHAUST SIDE AT AROUND THE 17TH FIN FROM THE BOTTOM.
- [SDR KC2R2014FA0000393](https://openairdocs.org/sdr/KC2R2014FA0000393.md): Impulse Coupling · cracked · Jun 11, 2014 · N71MN · Raythn G36 · Magneto/Distributor
  > IMPULSE COUPLING HUB BASE PLATE FOUND TO BE CRACKED AT ADVANCE STOP NOTCH. CRACK DISCOVERED USING NDT, MAGNETIC PARTICLE INSPECTION OF IMPULSE COUPLING DURING "500 HR INSPECTION" OF MAGNETO.
- [SDR KC2R2014FA0000394](https://openairdocs.org/sdr/KC2R2014FA0000394.md): Impulse Coupling · cracked · Jun 11, 2014 · N71MN · Raythn G36 · Magneto/Distributor
  > IMPULSE COUPLING HUB BASE PLATE FOUND TO BE CRACKED AT ADVANCE STOP NOTCH. CRACK DISCOVERED USING NDT, MAGNETIC PARTICLE INSPECTION OF IMPULSE COUPLING DURING "500 HR INSPECTION" OF MAGNETO.
- [SDR 2014FA0000197](https://openairdocs.org/sdr/2014FA0000197.md): Transducer · intermittent · Mar 19, 2014 · N481S · Engine Ignition Analyzer
  > PILOT REPORTED AN INTERMITTENT OIL PRESSURE GAUGE. MECHANIC TROUBLESHOT SYSTEM, & INSTALLED A NEW OIL PRESSURE TRANSDUCER. PERFORMED GROUND OPS CHECK. OPS CHECKED SATISFACTORY.
- [SDR WS9R2013FA0000568](https://openairdocs.org/sdr/WS9R2013FA0000568.md): Adapter · cracked · Sep 11, 2013 · N102HL · Beech A36 · Exhaust Turbocharger
  > EXHAUST STAINING ON THE OUTSIDE OF COWLING. DISCOVERED EXHAUST HAS BEEN PRESSURIZED AT EVERY ANNUAL SINCE INSTALLATION. CRACK WAS NOT EVIDENT IN AT THE LAST ANNUAL APPROX 90 HRS AGO. IT WOULD APPEAR THAT THE CRACK WAS CAUSED BY EXCESSIVE STRESS ON THE EXHA
- [SDR 2012FA0000827](https://openairdocs.org/sdr/2012FA0000827.md): Cylinder Head · cracked · Dec 20, 2012 · N222GL · Raythn G36 · Reciprocating Engine Cylinder Section
  > NR 1 CYLINDER HEAD CRACKED FROM THE SPARK PLUG HOLE TO THE INTAKE VALVE SEAT AND LEAKING EXHAUST EXTERNALLY.
- [SDR 2012FA0000671](https://openairdocs.org/sdr/2012FA0000671.md): Cylinder Head · separated · Sep 19, 2012 · N1528K · Beech A36 · Reciprocating Engine Cylinder Section
  > DURING CLIMB OUT, PILOT HEARD A BANG/POP SOUND FORWARD OF COCKPIT. LOST SOME POWER AND RPM. NOTICED DROP IN NR 1 CYLINDER TEMP ON ENGINE INDICATING SYS. RETURN TO FIELD, NORMAL LANDING. ACFT SHUTDOWN. POST FLIGHT INSPECTION REVEALED A HEAD TO BARREL SEPARA
- [SDR 2012FA0000510](https://openairdocs.org/sdr/2012FA0000510.md): Brushes · worn · Jul 25, 2012 · N3122U · Beech A36 · DC Generator-Alternator
  > INSPECTED ALTERNATOR AND FOUND ONE BRUSH WAS WORN PAST LIMITS, THE OTHER EXHIBITED IMMINENT FAILURE.
- [SDR 2012FA0000497](https://openairdocs.org/sdr/2012FA0000497.md): Impulse Coupling · cracked · Jul 10, 2012 · N818LA · Beech A36 · Magneto/Distributor
  > DURING A ROUTINE 500 HR MAGNETO AND IMPULSE COUPLING INSPECTION, THE LT MAGNETO IMPULSE COUPLING PAWL WAS FOUND CRACKED FROM THE RIVET HOLE TO OUTER EDGE OF PAWL. A NEW IMPULSE COUPLING WAS INSTALLED AND ACFT RETURNED TO SERVICE. CAUSE OF CRACK MAY BE IMPROP
- [SDR X0NR20120619001](https://openairdocs.org/sdr/X0NR20120619001.md): Contact · loose · Jun 15, 2012 · N222G · Raythn G36 · Magneto/Distributor
  > ENGINE RAN VERY ROUGH & RPM DROPPED OFF ON LT MAGNETO DURING MAG CHECK. REMOVED LT MAGNETO. FOUND CONTACT POINT ON MOVEABLE ARM LOOSE & MOVING AROUND DURING POINT OPEN DWELL TIME. ON REMOVING POINTS & OPENING MANUALLY, CONTACT POINT FELL OUT OF ARM. CAPAC
- [SDR 2012FA0000265](https://openairdocs.org/sdr/2012FA0000265.md): Spring · broken · Mar 13, 2012 · N805NH · Beech A36 · Rudder Control System
  > DURING FLIGHT, THE PILOT NOTICED THE AILERON CONTROL WAS PULLING TO THE RT. ACFT RETURNED TO BASE WITHOUT INCIDENT. UPON INSP OF AILERON CONTROL SYS THE UPPER AILERON/RUDDER INTERCONNECT SPRING PN 35-5524664 WAS FOUND BROKEN AT THE BELLCRANK ARM, PN 002-5240
- [SDR 2012FA0000205](https://openairdocs.org/sdr/2012FA0000205.md): Key · sheared · Feb 20, 2012 · N1849P · Beech F33A · DC Generator-Alternator
  > WOODRUFF KEY ON THE ALTERNATOR SHAFT SHEARED LEAVING THE CLUTCH FREE SPOOLING, FREE SPOOLING ON THE ALTERNATOR SHAFT DAMAGING THE ALTERNATOR RING GEAR PN 632018. ALTERNATOR CLUTCH RETAINING NUT AND COTTER PIN REMAINED STILLIN PLACE ON THE SHAFT. THE KEYWAY
- [SDR 2011FA0000788](https://openairdocs.org/sdr/2011FA0000788.md): Diaphragm · deteriorated · Dec 12, 2011 · Fuel Storage
  > ENGINE LOST POWER IN FLIGHT, MADE A PRECAUTIONARY LANDING AND COULD NOT BE RESTARTED. PROBLEM WAS AN EXTREMELY HARDENED DIAPHRAGM IN THE ENGINE'S FLOW DIVIDER. THE DIAPHRAGM WAS SO INFLEXIBLE THAT THE FLOW DIVIDER CLOSED AND COULD NOT BE OPENED NO MATTER HOW
- [SDR 2011FA0000630](https://openairdocs.org/sdr/2011FA0000630.md): Autopilot Sys · failed · Sep 12, 2011 · N7385W · Raythn G36 · Autopilot System
  > AUTOPILOT FAILED TO DISENGAGE ON COUPLED APPROACH.
- [SDR 2SQR20110825001](https://openairdocs.org/sdr/2SQR20110825001.md): Cylinder · peeling · Aug 23, 2011 · N20CA · Beech E33A · Reciprocating Engine Cylinder Section
  > CYLINDER BARREL NICKEL PROCESS PEELED AWAY FROM BARREL AND WAS BROKEN INTO PIECES BY THE RINGS.
- [SDR 2011FA0000441](https://openairdocs.org/sdr/2011FA0000441.md): Cylinder · cracked · Jul 6, 2011 · N147DT · Beech A36 · Reciprocating Engine Cylinder Section
  > ON INITIAL CLIMB OUT PILOT NOTICED A VIBRATION AND ELECTED TO RETURN FOR LANDING. THE NR2 CYLINDER WAS FOUND CRACKED FROM THE SPARK PLUG, PAST THE EXHAUST VALVE AND APPROXIMATELY 75 PERCENT AROUND THE HEAD / CYLINDER. THE CYLINDER HAD GOOD COMPRESSION (72/80)
- [SDR 2011F00118](https://openairdocs.org/sdr/2011F00118.md): Cylinder · cracked · Apr 26, 2011 · N775SL · Raythn G36 · Reciprocating Engine Cylinder Section
  > 04/26/2011, OWNER FLYING AIRCRAFT, RECEIVED WARNING INDICATION/OVER TEMP ON 3RD CYLINDER. MADE UNSCHEDULED LANDING. UPON INSP, FOUND HOLE IN TOP OF CYLINDER ADJACENT TO SPARK PLUG. REMOVED AND REPLACED CYLINDER. VISUALLY INSPECTED OTHER CYLINDERS- NO DISCR
- [SDR 2011FA0000412](https://openairdocs.org/sdr/2011FA0000412.md): Lifter · spalled · Apr 20, 2011 · Beech V35 · Reciprocating Engine Cylinder Section
  > LIFTERS SPALLED, CAUSING A METAL CONTAMINATION IN THE ENGINE.
- [SDR 2011FA0000413](https://openairdocs.org/sdr/2011FA0000413.md): Lifter · spalled · Apr 20, 2011 · Beech V35 · Reciprocating Engine Cylinder Section
  > LIFTERS SPALLED, CAUSING A METAL CONTAMINATION IN THE ENGINE.
- [SDR 2011FA0000044](https://openairdocs.org/sdr/2011FA0000044.md): Oil Cooler · cracked · Jan 20, 2011 · N315W · Beech A36 · Engine Oil Cooler
  > AFTER AN OIL CHANGE, THE CUSTOMER COMPLAINED OF OIL ON TOP OF THE NOSE GEAR WELL AREA BEHIND & BELOW ENGINE. ENGINE COMPARTMENT CLEANED, GROUND RUN & ENGINE COMPARTMENT INSPECTED FOR LEAKS. NONE NOTED. CUSTOMER CONTACTED SHOP THE FOLLOWING WEEK AFTER FLYING OV
- [SDR CA101123004](https://openairdocs.org/sdr/CA101123004.md): Shaft · broken · Nov 22, 2010 · Raythn G36 · Engine Starter
  > SHAFT GEAR BROKE JUST AFTER THE END OF THE SCAVENGE GEAR DRIVE SPLINE UPON LANDING.

Next page: https://openairdocs.org/engine/continental-io-550-b/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 = 'IO550B'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/continental-io-550-b/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.