# Service difficulty reports: Continental TSIO-520-NB

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

Newest first. General aviation reporting is voluntary.

Page 1 of 7 · 310 reports

- [SDR 2025F00273](https://openairdocs.org/sdr/2025F00273.md): Support · corroded · Nov 26, 2025 · N86VS · Cessna 414 · Vertical Stabilizer Miscellaneous Structure
  > DURING A PREFLIGHT WALKAROUND, SURFACE CORROSION WAS OBSERVED ON THE VERTICAL STABILIZER AFT SECTION. AFTER CLOSER INSPECTION SEVERE DELAMINATION WAS SEEN ON THE AFT VERTICAL SUPPORT ANGLES AND AFT STAB BULKHEAD SECTION. THE RUDDER TRIM TAB BRACKET ALSO HAD SI
- [SDR KISA202602050001](https://openairdocs.org/sdr/KISA202602050001.md): Angle · corroded · Nov 25, 2025 · N86VS · Cessna 414 · Vertical Stabilizer Miscellaneous Structure
  > DURING A PREFLIGHT WALK AROUND CORROSION WAS OBSERVED ON THE AFT SPAR ANGLE CHANNEL OF THE VERTICAL STABILIZER. UPON FURTHER INVESTIGATION SIGNIFICANT INTERGRANULAR CORROSION WAS FOUND RESULTING IN EXFOLIATION OF THE SURFACE OT THE SPAR ANGLE. THIS RESULTED IN
- [SDR 2025FA0000646](https://openairdocs.org/sdr/2025FA0000646.md): Intake Duct · ruptured · Sep 16, 2025 · N6305X · Cessna 340A · Engine Air Intake System
  > R/H ENGINE MP WILL NOT GO OVER 32 INCHES ABOVE 15,000. PRESSURE TESTED THE RH ENGINE INTAKE SYSTEM AND FOUND THE REAR INTAKE PIPE TORN.
- [SDR 2022F00516](https://openairdocs.org/sdr/2022F00516.md): Tach Generator · seized · Dec 13, 2022 · N157SG · Cessna 340CESSNA · Engine RPM Indicating System
  > THE LH TACH GENERATOR SEIZED INTERNALLY CAUSING THE LH TACHOMETER INDICATION TO FALL TO ZERO.
- [SDR 2021FA0000112](https://openairdocs.org/sdr/2021FA0000112.md): Drive Shaft · sheared · Apr 20, 2021 · N311BT · Cessna 414A · DC Generator-Alternator
  > LEFT ALTERNATOR FAIL ANNUNCIATOR LIGHT ILLUMINATED. NO VOLTAGE INDICATION ON LEFT ALTERNATOR. WIRING TERMINALS WERE INTACT AND FIELD VOLTAGE WAS PRESENT. INSPECTION REVEALED THE ALTERNATOR DRIVE SHAFT SHEARED SEPARATING THE DRIVE SHAFT FROM THE ALTERNATOR DRIV
- [SDR S1ZA202102000005](https://openairdocs.org/sdr/S1ZA202102000005.md): Bulkhead · cracked · Mar 1, 2021 · N2669N · Cessna 340A · Wing Main, Frame Structure
  > RIGHT MAIN FUEL TANK (TIP TANK) AFT BULKHEAD (PN: 0823400-109) CRACKED IN UPPER RADIUS. THIS BULK HEAD IS AN EXTENSION OF THE AFT WING SPARE IS THE ONLY ONE OF 2 LOCATIONS THAT HOLD THE FUEL TANK ON THE AIRPLANE. THIS AIRPLANE HAS BEEN THROUGH COUNTLESS 100
- [SDR 2021FA0000033](https://openairdocs.org/sdr/2021FA0000033.md): Bellcrank · cracked · Feb 3, 2021 · N6305X · Cessna 340A · Landing Gear Door Retract Section
  > R/H INNER GEAR DOOR BELLCRANK IDLER HAD BROKEN IN TWO PIECES. CUSTOMER BOUGHT A NEW PART WITH HIM TO INSTALL. BREAKAGE LOOKED CLEAN WITH NO CORROSION AT THE BREAKAGE SURFACE. IN CONVERSATION WITH CUSTOMER, WE HAD THE LEFT SIDE REMOVED AND CHECKED IT IN SAME AR
- [SDR S1ZA2019120500003](https://openairdocs.org/sdr/S1ZA2019120500003.md): Crankcase · cracked · Dec 5, 2019 · N67664 · Cessna 340A · Reciprocating Engine Power Section
  > CRACKED CRANK CASE. REMOVED ALL CYLINDERS DUE TO 4 BEING LOW COMPRESSION. 2 OTHER CYLINDERS WERE RECENTLY REPLACED BY PERSONS UNKNOWN AT EXACT TIME UNKNOWN. I FOUND 8130-3 FORMS FOR THE TWO REPLACED CYLINDERS(5&3) OPPOSITE THE CASE CRACK, DATED MARCH 1, 2019
- [SDR 2019FA0000053](https://openairdocs.org/sdr/2019FA0000053.md): Wire · chafed · Mar 1, 2019 · N512HP · Cessna 340CESSNA · Air Conditioning System Wiring
  > SAW A SMALL PUFF OF SMOKE WHEN THE HEATER WAS TURNED OFF. THE FOLLOWING MORNING A FUNCTION TEST OF THE HEATER WAS PERFORMED AND A SMALL FIRE BROKE OUT. UPON INSPECTION IT WAS DETERMINED THAT THE INSULATION ON THE HEATER WIRES WAS CHAFFED AND SHORTED OUT. THIS
- [SDR CCJA201809105016](https://openairdocs.org/sdr/CCJA201809105016.md): Collar · spalled · Sep 7, 2018 · N414WJ · Cessna 414A · Reciprocating Engine Front Section
  > INSTALLED ENGINE AFTER OVERHAUL. AFTER THIRD START, THE PROPELLER FEATHERED. FOUND OIL TRANSFER COLLAR SPALLED/GROOVED. ENGINE HAD LESS THAN 3 MINUTES TOTAL TIME SINCE OVERHAUL WHEN THE PROPELLER FEATHERED.
- [SDR CA180907011](https://openairdocs.org/sdr/CA180907011.md): Clamp · cracked · Sep 7, 2018 · Cessna 340A · Exhaust Turbine System (Reciprocating)
  > (CAN) DURING ANNUAL INSPECTION AS WELL AS IN CONJUNCTION WITH AD 2000-01-16, THE V-BAND CLAMP THAT ATTACHES THE WASTEGATE EXHAUST ELBOW TO THE EXHAUST HEADER ASSY WAS FOUND CRACKED. (TC# 20180907011)
- [SDR CCJA2018091005001](https://openairdocs.org/sdr/CCJA2018091005001.md): Camshaft · spalled · Sep 5, 2018 · N414WJ · Cessna 414A · Reciprocating Engine Power Section
  > SPALLED CAMSHAFT.
- [SDR CCJA2018091005002](https://openairdocs.org/sdr/CCJA2018091005002.md): Lifter · spalled · Sep 5, 2018 · N414WJ · Cessna 414A · Reciprocating Engine Power Section
  > LEFT ENGINE HAS SPALLED INTAKE LIFTERS.
- [SDR CCJA201809105003](https://openairdocs.org/sdr/CCJA201809105003.md): Lifter · spalled · Sep 5, 2018 · N414WJ · Cessna 414A · Reciprocating Engine Power Section
  > LEFT ENGINE HAS SPALLED EXHAUST LIFTERS.
- [SDR CCJA201809105009](https://openairdocs.org/sdr/CCJA201809105009.md): Camshaft · spalled · Sep 5, 2018 · N414WJ · Cessna 414A · Reciprocating Engine Power Section
  > RIGHT ENGINE HAS SPALLED CAMSHAFT.
- [SDR CCJA201809105010](https://openairdocs.org/sdr/CCJA201809105010.md): Lifter · spalled · Sep 5, 2018 · N414WJ · Cessna 414A · Reciprocating Engine Power Section
  > FOUND SPALLED INTAKE LIFTER ON RIGHT HAND ENGINE.
- [SDR CCJA201809105011](https://openairdocs.org/sdr/CCJA201809105011.md): Lifter · spalled · Sep 5, 2018 · N414WJ · Cessna 414A · Reciprocating Engine Power Section
  > FOUND SPALLED EXHAUST LIFTER ON RIGHT HAND ENGINE.
- [SDR CCJA20180905004](https://openairdocs.org/sdr/CCJA20180905004.md): Cylinder Head · cracked · Sep 5, 2018 · N414WJ · Cessna 414A · Reciprocating Engine Cylinder Section
  > FOUND #1 (S/N: 65688-04), #3 (S/N: 65976-01), #4 (S/N: 65937-18), #5 (S/N: 66237-24) AND #6 (S/N: 65025-20) CYLINDERS CRACKED AT CYLINDER HEAD ON LEFT ENGINE DURING 100 HOUR INSPECTION.
- [SDR CCJA20180905012](https://openairdocs.org/sdr/CCJA20180905012.md): Cylinder Head · cracked · Sep 5, 2018 · N414WJ · Cessna 414A · Reciprocating Engine Cylinder Section
  > FOUND #2 (S/N: 65537-01), #3 (S/N: 65656-01), #5 (S/N: 65537-08) AND #6 (S/N: 65622-07) CYLINDERS CRACKED AT CYLINDER HEAD ON RIGHT ENGINE DURING 100 HOUR INSPECTION.
- [SDR 2RM2017F00000](https://openairdocs.org/sdr/2RM2017F00000.md): Lifter · spalled · Oct 17, 2017 · N414AW · Cessna 414 · Reciprocating Engine Power Section
  > ENGINE WAS DISASSEMBLED FOR PROP STRIKE INSPECTION. FOUND LIFTERS BEGINNING TO SPALL AND WERE REPLACED WITH NEW LIFTERS AT THIS TIME TO PREVENT DAMAGE TO CAMSHAFT. LIFTERS WERE INSTALLED IN MAY OF 2010 AND HAVE 303.7 HOURS SINCE NEW.
- [SDR 2RM2017F00001](https://openairdocs.org/sdr/2RM2017F00001.md): Lifter · spalled · Oct 17, 2017 · N414AW · Cessna 414 · Reciprocating Engine Power Section
  > ENGINE WAS DISASSEMBLED FOR PROP STRIKE INSPECTION. FOUND LIFTERS BEGINNING TO SPALL AND WERE REPLACED WITH NEW LIFTERS AT THIS TIME TO PREVENT DAMAGE TO CAMSHAFT. LIFTERS WERE INSTALLED IN MAY OF 2010 AND HAVE 303.7 HOURS SINCE NEW.
- [SDR 2017FA0000259](https://openairdocs.org/sdr/2017FA0000259.md): Crankshaft · broken · Jun 13, 2017 · N14JD · Cessna 340CESSNA · Reciprocating Engine Power Section
  > THE PILOT REPORTED HEARING A LOUD POP FROM THE NR 1 ENGINE ON TAKEOFF AND A NEAR COMPLETE LOSS OF RPM. THE ENGINE WAS SUBSEQUENTLY REMOVED AND DISASSEMBLED. THE CRANKSHAFT WAS FOUND TO BE COMPLETELY BROKEN JUST IN FRONT OF THE NR 2 BEARING. WHAT REMAINED OF
- [SDR 2017FA0000180](https://openairdocs.org/sdr/2017FA0000180.md): Bellcrank · cracked · May 3, 2017 · N5773S · Mooney M20K · Flight Compartment Equipment
  > DURING THE TAKEOFF ROLL, THE PILOT'S SEAT SUDDENLY BROKE LOOSE AND MOVED FULL AFT. THE CAUSE WAS FOUND TO BE A CRACKED BELLCRANK TUBE UNDER THE PILOT'S SEAT. I WILL FORWARD PHOTOS.
- [SDR 2017FA0000348](https://openairdocs.org/sdr/2017FA0000348.md): Cylinder Head · cracked · Apr 19, 2017 · N669JM · Cessna 340A · Reciprocating Engine Cylinder Section
  > CRACKS IN THE HEADS ABOVE THE INTAKE PORT IN BOTH CYLINDERS. FUEL STAINING ON THE EXTERIOR OF THE HEAD. THIS IS THE THIRD AND FOURTH CYLINDERS THAT HAVE BEEN REPLACED ON THIS ACFT. THE EARLIER ONES WERE DONE ON 10/19/15 WITH 379 HOURS ON THE PARTS.
- [SDR 2017FA0000356](https://openairdocs.org/sdr/2017FA0000356.md): Lifter · spalled · Mar 17, 2017 · N350A · Cessna 340A · Reciprocating Engine Power Section
  > BOTTOM SURFACE OF LIFTERS SPALLING CAUSING DAMAGE TO CAMSHAFT AND METAL CONTAMINATION TO ENGINE.
- [SDR 2017FA0000361](https://openairdocs.org/sdr/2017FA0000361.md): Lifter · failed · Mar 17, 2017 · N350A · Cessna 340A · Reciprocating Engine Cylinder Section
  > BOTTOM SURFACE OF LIFTERS SPALLING CAUSING DAMAGE TO CAMSHAFT AND METAL CONTAMINATION TO ENGINE.
- [SDR 2017FA0000363](https://openairdocs.org/sdr/2017FA0000363.md): Lifter · spalled · Mar 17, 2017 · N21234 · Cessna 340A · Reciprocating Engine Cylinder Section
  > BOTTOM SURFACE OF LIFTERS SPALLING CAUSING DAMAGE TO CAMSHAFT AND METAL CONTAMINATION TO ENGINE.
- [SDR 2017FA0000022](https://openairdocs.org/sdr/2017FA0000022.md): Manifold · fluctuates · Jan 24, 2017 · N414XX · Cessna 414A · Exhaust Turbocharger
  > RIGHT ENGINE MANIFOLD PRESSURE FLUCTUATING IN FLIGHT
- [SDR 2017F00009](https://openairdocs.org/sdr/2017F00009.md): Oil Filter · leaking · Dec 22, 2016 · N36961 · Cessna 414A · Reciprocating Engine Oil System
  > HAVE FOUND THREE OIL FILTERS LEAKING FROM THE HEX TO BODY CONNECTION.
- [SDR 2017FA0000013](https://openairdocs.org/sdr/2017FA0000013.md): Selector Valve · malfunctioned · Dec 13, 2016 · N128BR · Cessna 414A · Fuel Selector/Shut-Off Valve
  > TO BALANCE FUEL IN FLIGHT, LEFT FUEL SELECTOR HANDLE MOVED FROM LEFT MAIN TO RIGHT MAIN. BOTH FUEL BOOST PUMPS REMAINED ON. AFTER FUEL LEVELS BALANCED, LEFT FUEL SELECTOR HANDLE MOVED TO POINT BACK TO LEFT MAIN TANK. LEFT MAIN FUEL INDICATED QUANTITY DECREA
- [SDR 2016FA0000419](https://openairdocs.org/sdr/2016FA0000419.md): Control Valve · shorted · Aug 19, 2016 · N128BR · Cessna 414A · Landing Gear Retraction/Extension System
  > WHEN ATTEMPTING NORMAL HYDRAULIC EXTENSION OF LANDING GEAR WITH THE SWITCH, HEARD A RAPID BANGING FROM NOSE GEAR. RED GEAR UNLOCKED LIGHT FLICKERED. LANDING GEAR WOULD NOT UNLOCK FROM RETRACTED POSITION. HYD PRESSURE ANNUNCIATOR DID NOT ILLUMINATE. RETURNE
- [SDR 2016FA0000299](https://openairdocs.org/sdr/2016FA0000299.md): Engine · malfunctioned · Jun 8, 2016 · N934CR · Cessna 414A · Engine (Reciprocating)
  > WHILE CRUISING AT 10,000 FEET, THE LT ENGINE STARTED VIBRATING, IDENTIFYING ON THE ENGINE INSTRUMENTS AN RPM FLUCTUATION OF +/- 300 RPMS, PROCEEDED TO REDUCE ENGINE POWER TO SEE IF IT WOULD REDUCE THE FLUCTUATION, WHICH DIDN'T HAPPEN, THEN PROCEEDED TO REDUCE
- [SDR EWFA2016FA0000022](https://openairdocs.org/sdr/EWFA2016FA0000022.md): Cylinder Head · cracked · Jan 15, 2016 · N414PA · Cessna 414A · Reciprocating Engine Cylinder Section
  > NEW VIBRATION NOTICED DURING CRUISE. ONCE NORMAL DESCENT AND LANDING WAS MADE, ENGINE WAS INSPECTED AND WHOLE IN EXHAUST SIDE OF CYLINDER NR 1 DISCOVERED.
- [SDR CA151209003](https://openairdocs.org/sdr/CA151209003.md): Window · cracked · Nov 22, 2015 · Cessna 340A · Flight Compartment Windows
  > (CAN) PILOT HEARD THE SIDE WINDOW CRACK WHEN HE WAS CRUISING AT 13,000 FT. WITH THE ACFT PRESSURIZED. THE WINDOW CRACKED FROM THE LOWER FORWARD EDGE TO THE STORM WINDOW HOLE, THE LENGTH OF THE CRACK WAS 2.75" LONG, THE CRACK STOPPED AT THE STORM WINDOW OPENIN
- [SDR YWYR2015112400001](https://openairdocs.org/sdr/YWYR2015112400001.md): Cylinder · cracked · Nov 16, 2015 · N801EC · Cessna 340A · Reciprocating Engine Cylinder Section
  > WHILE PERFORMING VISUAL INSPECTION DURING ANNUAL INSPECTION, TECH NOTED STAINING BETWEEN CYLINDER FINS ON INTAKE SIDE OF CYLINDER NR 6 ON RT ENGINE. CYLINDER COMPRESSION CHECK AND BORESCOPE INSPECTION CONFIRMED THAT STAINING WAS DUE TO A CRACK BETWEEN INTAKE
- [SDR 4MCA2015F00094](https://openairdocs.org/sdr/4MCA2015F00094.md): Magneto · malfunctioned · Aug 4, 2015 · N999RK · Cessna 414 · Magneto/Distributor
  > ATC KEPT ACFT AT 3000 FT FOR APPROXIMATELY 15 MINUTES. DURING THIS TIME, KEPT FULL POWER AND MIXTURE FULL RICH, WAS EXPECTING A CLIMB TO FILED ALTITUDE. AFTER ABOUT 15 MINUTES, SET POWER TO CRUISE SETTING AND LEANED MIXTURE. A FEW MINUTES LATER, WAS TOLD T
- [SDR BGJA20150721001](https://openairdocs.org/sdr/BGJA20150721001.md): Wastegate Valve · failed · Jul 15, 2015 · N4057C · Cessna 414A · Exhaust Turbocharger
  > DURING TAKEOFF ROLL, THE RT ENG WOULD NOT MAKE FULL POWER. THE PILOT CANCELLED THE TAKEOFF & RETURNED TO THE SHOP. THE ACFT NEVER LEFT THE GND. MX WAS NOTIFIED & TROUBLE SHOT THE ISSUE. THE RT ENG WASTE GATE WAS LEAKING OIL OUT OF THE CASE AT THE SEAL, THI
- [SDR BGJA20150721002](https://openairdocs.org/sdr/BGJA20150721002.md): Pump · failed · Jul 15, 2015 · N4057C · Cessna 414A · Engine Fuel Pump
  > DURING TAKEOFF ROLL THE RIGHT ENGINE WOULD NOT MAKE FULL POWER. THE PILOT CANCELLED THE TAKEOFF AND RETURNED TO THE SHOP. THE AIRCRAFT NEVER LEFT THE GROUND. MAINTENANCE WAS NOTIFIED AND TROUBLESHOOT THE ISSUE. MAINTENANCE FOUND THE RIGHT ENGINE WASTE GATE WAS
- [SDR CA150715005](https://openairdocs.org/sdr/CA150715005.md): Cylinder · cracked · Jul 15, 2015 · Cessna 414A · Reciprocating Engine Cylinder Section
  > (CAN) AIRCRAFT EXPERIENCED SLIGHTLY ABOVE NORMAL CYLINDER HEAD TEMP ON NR 2 & 4 CYLINDER AFTER LEVEL OFF AT CRUISE ALTITUDE. VISUAL INSPECTION VERIFIED FAILED CYLINDER ASSEMBLY. ECI CONFIRMED THAT THIS UNIT WAS A NEW BARREL INSTALLED AT OVERHAUL. IT WAS A F
- [SDR BPY2015F00000](https://openairdocs.org/sdr/BPY2015F00000.md): Connecting Rod · broken · Feb 3, 2015 · N83D · Cessna 414A · Reciprocating Engine Power Section
  > DURING CRUISE FLIGHT, NR 1 AND NR 2 CONNECTING RODS FAILED AT THE CRANK JOURNALS CAUSING THE ENGINE TO SEIZE. THE RODS BROKE BOTH CASE HALVES AND THE LT MAGNETO FROM THE CASE. REASON IS UNKNOWN. 1515.1 HRS SMOH.
- [SDR 2014FA0000602](https://openairdocs.org/sdr/2014FA0000602.md): Piston Ring · failed · Sep 16, 2014 · N5626C · Mooney M20K · Reciprocating Engine Cylinder Section
  > ENROUTE, IFR AT 17000 FT WHEN PILOT NOTICED DROP IN MANIFOLD PRESSURE. PILOT REDUCED POWER SETTINGS AND STARTED DESCENT. NEXT OIL PRESSURE AND MANIFOLD PRESSURE DROPPED SIGNIFICANTLY AND DECLARED AN EMERGENCY, FEATHERED THE PROP AND SHUTDOWN THE ENGINE.
- [SDR BIGR20140725001](https://openairdocs.org/sdr/BIGR20140725001.md): Alternator · fractured · Jul 20, 2014 · N118BH · Cessna 340A · DC Generator-Alternator
  > THE RT ENGINE LOCKED UP DURING FLIGHT GOING INTO FEATHER AND COULD NOT BE RESTARTED. MAINTENANCE FOUND THE ENGINE NEARLY LOCKED UP BUT COULD STILL BE TURNED WITH DIFFICULTY USING THE PROPELLER. THE ALTERNATOR ROTOR SHAFT HAD SHEARED OFF FLUSH WITH THE ALTERN
- [SDR CA140624004](https://openairdocs.org/sdr/CA140624004.md): Cylinder · cracked · Jun 24, 2014 · Cessna 414A · Reciprocating Engine Cylinder Section
  > (CAN) OWNER REQUESTED TO HAVE LT AND RT ENGINE INTAKE PIPE GASKETS REPLACED. DURING GASKET REPLACEMENT THE CYLINDERS WERE INSPECTED INSIDE THE INTAKE PORTS RESULTING IN FINDING NR 1 AND NR 3 CYLINDERS CRACKED INSIDE THE INTAKE PORTS ON THE RT ENGINE AS WELL A
- [SDR CA140630025](https://openairdocs.org/sdr/CA140630025.md): Line · chafed · May 5, 2014 · Cessna 340A · Turbine Engine Oil System
  > (CAN) WHILE REMOVING THE ENGINE FROM THE AIRFRAME, THE OIL LINE BETWEEN THE WASTEGATE CONTROLLER AND ABSOLUTE PRESSURE CONTROLLER WAS FOUND TO BE CHAFING AGAINST THE EXHAUST ELBOW. LIGHT PROBING WITH A PICK PENETRATED THE WALL OF THE LINE.
- [SDR CA140630024](https://openairdocs.org/sdr/CA140630024.md): Cylinder Head · separated · May 3, 2014 · Cessna 340A · Reciprocating Engine Cylinder Section
  > (CAN) THE NR 6 CYLINDER HEAD SEPARATED BY FAILING THOUGH THE ALUMINUM CASTING. ENGINE WAS SHUTDOWN AND PROP FEATHERED AND LANDING WAS CARRIED OUT. THE ENGINE IS A RAM 6 STC CONVERSION. AD 2004-08-10 APPLIES TO THIS CYLINDER PN, BUT THE SN OF THE AFFECTED CY
- [SDR N3SA2014FA0000199](https://openairdocs.org/sdr/N3SA2014FA0000199.md): Suppressor · arced · Mar 28, 2014 · N5690C · Cessna 414A · Windshield/Door Rain/Ice Removal
  > SMOKE IN COCKPIT AFTER ACTIVATING WINDSHIELD HEAT. WINDSHIELD SUPPRESSOR ACRED.
- [SDR 2014FA0000156](https://openairdocs.org/sdr/2014FA0000156.md): Landing Gear · collapsed · Mar 13, 2014 · N606PP · Cessna 414 · Main Landing Gear
  > LEFT MLG COLLAPSED ON LANDING ROLLOUT.
- [SDR 9BYR2014022000091](https://openairdocs.org/sdr/9BYR2014022000091.md): Cylinder Head · cracked · Feb 12, 2014 · N6225X · Cessna 340A · Reciprocating Engine Cylinder Section
  > PILOT STATED LOSS OF POWER/ROUGH RUNNING. DURING INVESTIGATION FOUND CYLINDER NR 3 CRACKED FROM TOP SPARK PLUG HOLE TO EXHAUST VALVE. CYLINDER NR 2 HEAD HAD SEPARATED FROM BARREL AND CRACKED FROM TOP SPARK PLUG HOLE TO EXHAUST VALVE ALSO. CYLINDER NR 6 EXHA
- [SDR BGJA20140501001](https://openairdocs.org/sdr/BGJA20140501001.md): Cylinder · cracked · Feb 2, 2014 · N4057C · Cessna 414A · Reciprocating Engine Cylinder Section
  > DURING INSPECTION WE FOUND THE NR 3 CYLINDER TO HAVE A CRACK & WAS LEAKING FUEL DOWN ON TO THE INTAKE PIPE. PROCEEDED TO INSPECT THE CYLINDER & IT WAS FOUND TO HAVE A CRACK. THE CRACK WAS BETWEEN THE 1ST & 2ND LARGE COOLING FIN BEHIND THE FUEL INJECTOR & DOW
- [SDR 2013FA0000681](https://openairdocs.org/sdr/2013FA0000681.md): Cylinder · cracked · Nov 23, 2013 · N6829K · Cessna 340A · Reciprocating Engine Cylinder Section
  > CRACKED ENGINE CYLINDER.

Next page: https://openairdocs.org/engine/continental-tsio-520-nb/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 = 'TSIO520NB'
ORDER BY difficulty_date DESC
```

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

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