# Service difficulty reports: Continental TSIO-520-N

A list on [Continental TSIO-520-N](https://openairdocs.org/engine/continental-tsio-520-n.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 2 · 66 reports

- [SDR KC2R2014FA0000436](https://openairdocs.org/sdr/KC2R2014FA0000436.md): Impulse Coupling · cracked · Jul 7, 2014 · N351HC · Cessna 414A · Magneto/Distributor
  > DURING PERFORMANCE OF FIRST 500 HR INSPECTION OF MAGNETO, CRACKS WERE DISCOVERED IN IMPULSE COUPLING SHELL. CRACKS DETECTED BY NDT/MAGNETIC PARTICLE INSPECTION OF PARTS. CRACKS RADIATE FROM SHARP CORNERED FEATURE OF SHELL THAT FORMS TRIP DOGS. SUSPECT STRES
- [SDR KC2R2014FA0000437](https://openairdocs.org/sdr/KC2R2014FA0000437.md): Impulse Coupling · cracked · Jul 7, 2014 · N351HC · Cessna 414A · Magneto/Distributor
  > DURING PERFORMANCE OF FIRST 500 HR INSPECTION OF MAGNETO, CRACKS WERE DISCOVERED IN IMULSE COUPLING SHELL. CRACKS DETECTED BY NDT/MAGNETIC PARTICLE INSPECTION OF PARTS. CRACKS RADIATE FROM SHARP CORNERED FEATURE OF SHELL THAT FORMS TRIP DOGS. SUSPECT STRESS
- [SDR KC2R2014FA0000438](https://openairdocs.org/sdr/KC2R2014FA0000438.md): Impulse Coupling · cracked · Jul 7, 2014 · N351HC · Cessna 414A · Magneto/Distributor
  > DURING PERFORMANCE OF FIRST 500 HR INSPECTION OF MAGNETO, CRACKS WERE DISCOVERED IN IMULSE COUPLING SHELL. CRACKS DETECTED BY NDT/MAGNETIC PARTICLE INSPECTION OF PARTS. CRACKS RADIATE FROM SHARP CORNERED FEATURE OF SHELL THAT FORMS TRIP DOGS. SUSPECT STRESS
- [SDR KC2R2014FA0000439](https://openairdocs.org/sdr/KC2R2014FA0000439.md): Impulse Coupling · cracked · Jul 7, 2014 · N351HC · Cessna 414A · Magneto/Distributor
  > DURING PERFORMANCE OF FIRST 500 HR INSPECTION OF MAGNETO, CRACKS WERE DISCOVERED IN IMULSE COUPLING SHELL. CRACKS DETECTED BY NDT/MAGNETIC PARTICLE INSPECTION OF PARTS. CRACKS RADIATE FROM SHARP CORNERED FEATURE OF SHELL THAT FORMS TRIP DOGS. SUSPECT STRESS
- [SDR 2014FA0000240](https://openairdocs.org/sdr/2014FA0000240.md): Engine · making metal · Mar 28, 2014 · N58AW · Cessna 414A · Engine (Reciprocating)
  > ENGINE OVERHAULED ON MAY,08 2013, ENGINE FAILED ON FEB. 13, 2014 AT 6939.5 WITH LARGE AMOUNTS OF METAL CONTAMINATION, STEEL, FOUND IN ENGINE OIL FILTER. REMOVED ENGINE FROM SERVICE AND SENT FOR REPAIR. RE-INSTALLED REPAIRED ENGINE MARCH 24, 2014 AT 6944.7 WIT
- [SDR 2013FA0000680](https://openairdocs.org/sdr/2013FA0000680.md): Cylinder · cracked · Nov 23, 2013 · N6829K · Cessna 340A · Reciprocating Engine Cylinder Section
  > CRACKED ENGINE CYLINDER.
- [SDR CA130826006](https://openairdocs.org/sdr/CA130826006.md): Bellcrank · sheared · Aug 22, 2013 · Cessna 414 · Landing Gear Door Retract Section
  > (CAN) AFTER FLIGHT, IT WAS NOTED THAT THE RT INBD MLG DOOR WAS HANGING OPEN. NO NOISE WAS HEARD IN FLIGHT DURING EXTENSION AND RETRACTION AND THE LANDING GEAR SYS FUNCTIONED NORMALLY. IT WAS FOUND THAT THE IDLER BELLCRANK THAT CONTROLS THE DOOR MOVEMENT HAD
- [SDR CA120515001](https://openairdocs.org/sdr/CA120515001.md): Bearing · loose · May 15, 2012 · Cessna 414A · Magneto/Distributor
  > (CAN) MAG WAS RETURNED WITH A WC STATING MAG DEAD AND TEETH BROKEN. WHEN DISASSEMBLED, THE BEARING IN THE DISTRIBUTOR BLOCK WAS FOUND LOOSE. THIS CAUSED THE DISTRIBUTOR GEAR TO TILT AND CONTACT THE ELECTRODES IN THE DISTRIBUTOR BLOCK. THE BATCH CODE OF THE
- [SDR 2012FA0000217](https://openairdocs.org/sdr/2012FA0000217.md): Cylinder · cracked · Mar 6, 2012 · N6871D · Cessna 340A · Reciprocating Engine Cylinder Section
  > IN CRUISE, AIRCRAFT EXPERIENCED VIBRATION. CHECKED COMPRESSION ON RT ENGINE, FOUND NR 3 CYLINDER HAD 0/80. REMOVED CYLINDER AND FOUND CRACKED FROM SPARK PLUG HOLE TO INTAKE SEAT. INSTALLED NEW CYLINDER AND GROUND RAN. ACFT WAS RETURNED TO SERVICE NO FURTHE
- [SDR CA111026007](https://openairdocs.org/sdr/CA111026007.md): Skin · cracked · Oct 23, 2011 · Cessna 414 · Horizontal Stabilizer, Plate/Skin
  > (CAN) NUMEROURS SKIN CRACKS FOUND IN UPPER SKIN ON LT ELEVATOR AND LT HORIZONTAL STABILIZER.
- [SDR 2011FA0000081](https://openairdocs.org/sdr/2011FA0000081.md): Probe · mismanufactured · Jan 6, 2011 · N2657N · Cessna 421C · Engine Oil Temperature
  > NEW INSTALLATION OF EDM-960 DIGITAL ENG MONITOR AS PRIMARY REPLACEMENT OF ALL FACTORY INSTALLED ENGINE INSTRUMENTATION IAW STC SA01828SE. SECOND INSTANCE, TO HAVE FOUND THE NEW PN 400509 OIL TEMP PROBE SUPPLIED WITH KIT WILL NOT FIT ORIGINAL FACTORY OIL TEMP
- [SDR CA080410009](https://openairdocs.org/sdr/CA080410009.md): Cylinder Head · cracked · Mar 12, 2008 · Cessna 414 · Reciprocating Engine Cylinder Section
  > PILOT FLYING IN CRUISE FLIGHT, WHEN HE HEARD A POP AND EXPERIENCED LOSS OF ENGINE POWER. FEATHERED PROPELLER AND LANDED AT NEAREST AIRPORT. ENGINE CYLINDER REPLACED.
- [SDR CA071004006](https://openairdocs.org/sdr/CA071004006.md): Cable · broken · Oct 1, 2007 · Cessna 414 · Mixture Control
  > (CAN) DURING THE ENGINE RUN-UP, THE RT ENGINE DID NOT RESPOND TO MIXTURE CONTROL. THE MIXTURE CONTROL CABLE WAS FOUND BROKEN UNDER THE ENGINE CONTROL PEDISTAL. THE BRAKE WAS INSIDE THE CONTROL CABLE HOUSING AND COULD NOT BE SEEN WITH ANY INSPECTION. (TC NR 200
- [SDR CA061123006](https://openairdocs.org/sdr/CA061123006.md): Cap · cracked · Nov 20, 2006 · Cessna 414 · Nacelle/Pylon Miscellaneous Structure
  > (CAN) CRACK NOTED AT LT NACELLE CANTED BULKHEAD CAP. CAP REPAIRED. (TC NR 20061123006)
- [SDR CA051014003](https://openairdocs.org/sdr/CA051014003.md): Washer · missing · Oct 13, 2005 · Cessna 414 · Landing Gear Steering System
  > AFTER LANDING, THE A/C SUDDENLY VEERED OFF THE RUNWAY. THE RT MAIN LANDING GEAR SCISSORS CAME APART AT THE CENTER. THE WHEEL THEN TURNED AND PULLED THE AIRCRAFT OFF THE RUNWAY. ON EACH SIDE OF THE CENTER BOLT HOLDING THE SCISSORS TOGETHER TWO P/N S1450-5H12
- [SDR AU510001704](https://openairdocs.org/sdr/AU510001704.md): Elbow · worn · Oct 1, 2005 · Cessna 414A · Engine Air Intake System
  > RT ENGINE AIR INDUCTION HOSE FLEXIBLE ELBOW TORN ON INSIDE RADIUS.
- [SDR CA041222004](https://openairdocs.org/sdr/CA041222004.md): Crankcase · cracked · Dec 14, 2004 · Cessna 414 · Engine (Reciprocating)
  > (CAN) THE NR 4 CYLINDER HAD LOW COMPRESSION AND WAS REMOVED FOR REPAIR. WHILE THE CYLINDER WAS REMOVED, A CRACK WAS FOUND AROUND THE 4 O'CLOCK POSITION CYLINDER ATTACH STUD. THE CRACK WAS ABOUT 1.5 INCHES LONG RADIATING INWARD. THE ENGINE WAS REMOVED FORREPAIR
- [SDR CA041006005](https://openairdocs.org/sdr/CA041006005.md): Line · corroded · Sep 22, 2004 · Cessna 414 · Turbine Engine Oil System
  > (CAN) PILOT AND AME FLYING HOME TO BASE OBSERVED THE LT ENGINE OIL PRESSURE DECREASING AT A SLOW RATE, UNTIL DECISION MADE TO SHUT DOWN THE ENGINE AND LAND AT THE NEAREST AIRFIELD. INVESTIGATION ON THE GROUND REVEALED OIL TO BE LEAKING FROM THIS LINE. LINE R
- [SDR CA040203009](https://openairdocs.org/sdr/CA040203009.md): Fork · cracked · Jan 16, 2004 · Cessna 340A · Nose/Tail Landing Gear
  > (CAN) CRACK FOUND IN FORK CASTING ON LT SIDE OF TUBE BORE. DISASSEMBLY REVEALED FORK CRACKED COMPLETELY THROUGH LT SIDE OF BORE.
- [SDR CA030923002](https://openairdocs.org/sdr/CA030923002.md): Hub · misoverhauled · Sep 18, 2003 · Cessna 414 · Propeller Hub Section
  > (CAN) HUB UNIT BLADE SOCKET NR 2, EXPANSION PLUG HOLES DRILLED TOO DEEP BY THE PREVIOUS OVERHAUL. HUB UNIT REPLACED.
- [SDR CA030923003](https://openairdocs.org/sdr/CA030923003.md): Blade · damaged · Sep 18, 2003 · Cessna 414 · Propeller Blade Section
  > (CAN) PROPELLER BLADES MEASURED WHEN RECEIVED IN SHOP. BLADES FOUND TO BE BELOW MIN. WIDTH AND THICKNESS. BLADES REPLACED.
- [SDR CA030923004](https://openairdocs.org/sdr/CA030923004.md): Blade · damaged · Sep 18, 2003 · Cessna 414 · Propeller Blade Section
  > (CAN) BLADES MEASURED WHEN RECEIVED IN SHOP, FOUND BLADE WIDTH TO BE BELOW MIN. ALLOWABLE. BLADES REPLACED.
- [SDR WS92003F00000](https://openairdocs.org/sdr/WS92003F00000.md): Cylinder Head · separated · Aug 15, 2003 · N415ST · Cessna 414A · Reciprocating Engine Cylinder Section
  > AIRCRAFT DEPARTED, PILOT EXPERIENCES ROUGH RUNNING RIGHT ENGINE, AND LOSS OF POWER. PILOT LANDED, AND UPON INSPECTION BY COMPANY MECHANIC DISCOVERED NR 6 CYLINDER CRACKED ALL THE WAY AROUND CYLINDER HEAD BETWEEN THE 9TH AND 10TH COOLING FIN. CYLINDER WAS RE
- [SDR AUS20030586](https://openairdocs.org/sdr/AUS20030586.md): Slip Joint · cracked · Apr 8, 2003 · Cessna 340A · Engine Collector/Tailpipe/Nozzle
  > (AUS) RT ENGINE EXHAUST SYSTEM SLIP COUPLING CRACKED IN AREA NEAR TRANSITION DUCT.
- [SDR CA021120001](https://openairdocs.org/sdr/CA021120001.md): Screen · destroyed · Nov 14, 2002 · Cessna 414 · Reciprocating Engine Oil System
  > (CAN) DURING OPERATION 1 INSPECT, NON FERROUS METAL FOUND IN LT OIL FILTER AND SCREEN. INSPECTED FILTER AGAIN IN 20 HOURS. IN LESS THAN 15 HOURS OIL WAS DRIPPING ONTO LT MLG. PAINT REMOVED FROM CRANKCASE FWD OF ALTERNATOR, CRACK WAS CONFIRMED BY DEVELOPER. E
- [SDR 2002F00959](https://openairdocs.org/sdr/2002F00959.md): Wastegate Valve · stuck · Oct 23, 2002 · N4837A · Cessna 414A · Exhaust Turbocharger
  > UNABLE TO OBTAIN TAKEOFF POWER ON RIGHT ENGINE.
- [SDR CA020626013](https://openairdocs.org/sdr/CA020626013.md): Bellcrank · cracked · Jun 18, 2002 · Cessna 414 · Nose/Tail Landing Gear
  > (CAN) SMALL CRACK ON BOTH RADII OF CENTRE BLOCK ON BELLCRANK.
- [SDR CA020719009](https://openairdocs.org/sdr/CA020719009.md): Mount · deformed · Jun 12, 2002 · Cessna 414 · Engine Mount Section
  > (CAN) ENGINE MOUNTS FOUND DEFORMED AND SOFT ALLOWING FOR EXCESSIVE MOVEMENT OF ENGINE ON MOUNTS.
- [SDR AUS20020519](https://openairdocs.org/sdr/AUS20020519.md): Line · chafed · May 24, 2002 · Cessna 340A · Engine Oil Pressure
  > (AUS) LT ENGINE OIL PRESSURE INDICATOR LINE LOCATED IN THE STUB WING ADJACENT TO THE NACELLE WORN THROUGH IN SEVERAL PLACES BY CONTACT WITH THE LH ENGINE BLEED AIR DUCT.
- [SDR 2002FA0000216](https://openairdocs.org/sdr/2002FA0000216.md): Actuator · broken · Feb 12, 2002 · N340TC · Cessna 340CESSNA · Landing Gear Actuator
  > RT MLG DOWN LIGHT DID NOT SHOW DOWN AND LOCK. REMOVED RIGHT SWITCH (DOWNLOCK) 1SE1 SWITCH AND ACTUATOR SWITCH LEAF (JE1) FELL OUT. THE JE1 ACTUATOR WAS BROKEN AND PART OF THE ACTUATOR WAS MISSING. ORDERED NEW PARTS,REPLACED 1SE1(SWITCH)AND ACTUATOR JE1 WITH
- [SDR AUS20010643](https://openairdocs.org/sdr/AUS20010643.md): Control Cable · frayed · Jun 1, 2001 · Cessna 340A · Rudder Control System
  > (AUS) YAW DAMPER CABLE FRAYED AND STRANDS BROKEN IN AREA WHERE THECABLE PASSES INTO THE TERMINAL FITTING AT THE RUDDER BELLCRANK.
- [SDR AU000670](https://openairdocs.org/sdr/AU000670.md): Cylinder · cracked · Sep 1, 2000 · Cessna 340A · Reciprocating Engine Cylinder Section
  > (AUS) LEFT ENGINE NR 2 AND NR 3 CYLINDERS CRACKED BETWEEN FUEL INJECTOR AND SPARK PLUG. FUEL LEAKING EXTERNALLY. (X)
- [SDR AU000767](https://openairdocs.org/sdr/AU000767.md): Bearing · corroded · Aug 30, 2000 · Cessna 414A · Rudder Structure
  > (AUS) LOWER RUDDER HINGE BEARING PLATE CORRODED. UPON REMOVAL, THE BEARING PLATE WAS FOUND TO HAVE BEEN INSTALLED UPSIDE DOWN. THE BEARING PLATE APPEARED TO BE ORIGINAL FITMENT. (X)
- [SDR AU000561](https://openairdocs.org/sdr/AU000561.md): Wire · broken · Jun 7, 2000 · Cessna 414A · Trailing Edge Flap Control System
  > (AUS) TRAILING EDGE FLAP POWER WIRE BROKEN IN AREA APPROXIMATELY 100 MM( 4 INCHES) FROM THE FLAP PRESELECT SWITCHES. WIRE IS ONE IN A BUNDLE OF FIVE WIRES WHICH FLEXES WHEN THE FLAPS MOVE. (X)
- [SDR AU990859](https://openairdocs.org/sdr/AU990859.md): Skin · cracked · Aug 24, 1999 · Cessna 340A · Wing, Plate/Skin
  > (AUS) LEFT AND RIGHT WING TOP SKINS CRACKED IN THE AREA ADJACENT TO THE WING LOCKERS.
- [SDR AU990827](https://openairdocs.org/sdr/AU990827.md): Beam · corroded · Aug 19, 1999 · Cessna 340A · Engine Mount Section
  > (AUS) ENGINE BEAM CORRODED.
- [SDR AU990828](https://openairdocs.org/sdr/AU990828.md): Beam · corroded · Aug 19, 1999 · Cessna 340A · Engine Mount Section
  > (AUS) ENGINE BEAM CORRODED.
- [SDR 20000808SH012](https://openairdocs.org/sdr/20000808SH012.md): Plate · worn · Mar 29, 1999 · N222PL · Cessna 414A · Exhaust Turbocharger
  > PILOT REPORTED FLUCTUATING MAP. TROUBLESHOOTING FOUND TOO MUCH AXIAL PLAY IN TURBOSHAFT. TIME ON TURBO 64.4 HRS.
- [SDR 99ZZZX1073](https://openairdocs.org/sdr/99ZZZX1073.md): Turbocharger · malfunctioned · Dec 21, 1998 · Cessna 340A · Exhaust Turbocharger
  > SUBJECT AIRCRAFT IS LOCATED IN AUSTRALIA. IT WAS REPORTED THAT THIS ENGINE WAS SURGING IN-FLIGHT. INVESTIGATION THERE FOUND A TURBOCHARGER WITH 'EXCESSIVE END FLOAT'. THE TURBOCHARGER WAS RETURNED TO ALLIED SIGNAL AND INSPECTION FOUND A WORN THRUST BEARING.
- [SDR AU981649](https://openairdocs.org/sdr/AU981649.md): Line · leaking · Dec 17, 1998 · Cessna 340A · Reciprocating Engine Oil System
  > (AUS) DURING FLIGHT, ENGINE WAS SHUT DOWN DUE TO LOSS OF ENGINE OIL PRESSURE. INVESTIGATION FOUND AN OIL PIPE LEAKING AS RESULT OF PIT HOLE CORROSION - PIPE RUBBING AGAINST THE SCAT HOSE APPEARS TO BE A POSSIBLE CAUSE.
- [SDR 99ZZZX279](https://openairdocs.org/sdr/99ZZZX279.md): Cylinder · cracked · Dec 4, 1998 · N69457 · Cessna 340CESSNA · Reciprocating Engine Cylinder Section
  > DURING FLIGHT, A VIBRATION WAS NOTED. THE PLANE LANDED. THE RIGHT ENGINE SHOWED ZERO COMPRESSION ON NR 4 CYLINDER. AFTER REMOVING CYLINDER, FOUND CRACK FROM EXHAUST TO SPARK PLUG.
- [SDR 98ZZZX4479](https://openairdocs.org/sdr/98ZZZX4479.md): Alternator · failed · Nov 1, 1998 · N4DM · Cessna 340A · Alternator-Generator Drive
  > ALTERNATOR HAD IN-FLIGHT FAILURE RESULTING IN CLUTCH FAILURE. METAL FROM CLUTCH WENT INTO THE INTERNAL ENGINE AND CLOGGED OIL PUMP INLET SCREEN RESULTING IN ZERO OIL PRESSURE AND ENGINE SHUT DOWN. INSPECTION OF ALTERNATOR SHOWED DRIVESHAFT SEIZED FROM LACK O
- [SDR AU981307](https://openairdocs.org/sdr/AU981307.md): Hose · separated · Sep 10, 1998 · Cessna 340A · Pitot/Static System
  > (AUS) ALTIMETER STATIC HOSE DISLODGED AND CRACKED. STATIC HOSE BETWEEN THE ALTIMETER AND AIRSPEED INDICATOR SEPARATED AT A UNION LOCATED BEHIND THE DIRECTIONAL GYRO CASE.
- [SDR 98ZZZX2807](https://openairdocs.org/sdr/98ZZZX2807.md): Connect Rod · failed · Jul 23, 1998 · N63JH · Cessna 414A · Reciprocating Engine Power Section
  > THIS ENGINE WAS OVERHAULED 5-27-85. TIME SINCE OVERHAUL 578 HOURS. THE CONNECTING ROD FAILED AT THE CAP/BOLT AREA. POSSIBLE BOLT FAILURE. NO FURTHER INFORMATION WAS AVAILABLE.
- [SDR AU981547](https://openairdocs.org/sdr/AU981547.md): Side Brace · faulty · Jul 10, 1998 · Cessna 340A · Landing Gear Retraction/Extension System
  > (AUS) RIGHT MAIN LANDING GEAR SIDE BRACE FAULTY. LANDING GEAR COMPONENTS STIFF IN OPERATION. MAIN LANDING GEAR COLLAPSED DURING LANDING.
- [SDR CA980610007](https://openairdocs.org/sdr/CA980610007.md): Seat Arms · cracked · Jun 2, 1998 · Cessna 414 · Flight Compartment Equipment
  > (CAN) PILOTS AND COPILOTS SEAT ARMS INSPECTED AND FOUND CEACKED. HAD BEEN WELDED AND DID NOT HOLD. NEW ARMS INSTALLED. MSB 89-3.
- [SDR AU980310](https://openairdocs.org/sdr/AU980310.md): Connector · burnt · Mar 13, 1998 · Cessna 414A · Flight Compartment Lighting
  > (AUS) SPARE POST LIGHT CONNECTOR LOCATED BEHIND THE INSTRUMENT PANEL SHORT CIRCUITED AND BURNT.
- [SDR 98ZZZX883](https://openairdocs.org/sdr/98ZZZX883.md): Crankcase · broken · Feb 6, 1998 · N3959G · Cessna 340A · Reciprocating Engine Power Section
  > CRANKCASE BROKE AT UPPER REAR BETWEEN MAGNETOS DOMINATING ON THE RT SIDE OF THE CRANKCASE PARTING SURFACE. NO CRANKCASE PARTS WERE MISSING, BUT IT APPEARS TO BE INTERNAL FAILURE. THE ENGINE WAS REMOVED AND SENT TO RAM AIRCRAFT OFR OVERHAUL.
- [SDR CA970903002](https://openairdocs.org/sdr/CA970903002.md): Engine · failed · Apr 10, 1997 · Cessna 340A · Engine (Reciprocating)
  > (CAN) NR 2 ENGINE FAILED
- [SDR AU970168](https://openairdocs.org/sdr/AU970168.md): Window · failed · Feb 6, 1997 · Cessna 340A · Flight Compartment Windows
  > (AUS) COPILOTS WINDOW FAILED - WINDOW BLEW OUT DURING FLIGHT

Next page: https://openairdocs.org/engine/continental-tsio-520-n/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 = 'TSIO520N'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/continental-tsio-520-n/reports

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