# Service difficulty reports: Continental TSIO-520-M

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

Newest first. General aviation reporting is voluntary.

Page 1 of 3 · 118 reports

- [SDR 2023FA0000363](https://openairdocs.org/sdr/2023FA0000363.md): Powerplant · oil starvation · Jun 7, 2023 · N92HC · Cessna TU206F · Engine (Reciprocating)
  > PILOT NOTICE LOSS OF POWER IN CRUISE FLIGHT, RETURNING TO AIRPORT DEBRIS AND SMOKE WAS NOTED EXITING THE ENGINE COWL. OFF AIRPORT LANDING WITHOUT INCIDENT. FOUND HOLE IN CRANKCASE INBOARD OF #4 CYLINDER. #4 CONNECTING ROD, PISTON PIN, AND OTHER PIECES OF THE C
- [SDR WIWA2020F00000](https://openairdocs.org/sdr/WIWA2020F00000.md): Oil System · leaking · Sep 16, 2020 · N9317M · Cessna T207A · Reciprocating Engine Oil System
  > THE PILOTS REPORTED THAT HE SET TAKEOFF POWER, ENGINE PARAMETERS READ NORMAL AND UPON REACHING 40 KNOTS HE SAW A ROLL BACK. HE EXECUTED AN ABORTED TAKEOFF AND HEARD SOME ENGINE SPUTTERING FOLLOWED BY THE ENGING SHUTTING OFF. MAINTENANCE FOUND NO ABNORMAL PRO
- [SDR 2020FA0000391](https://openairdocs.org/sdr/2020FA0000391.md): Intake Rocker · broken · Sep 2, 2020 · Cessna TU206F · Reciprocating Engine Cylinder Section
  > ROCKER ARM FAILED CAUSING ENGINE ROUGHNESS.
- [SDR 2020FA0000392](https://openairdocs.org/sdr/2020FA0000392.md): Thru Bolt · loose · Sep 2, 2020 · Cessna TU206F · Reciprocating Engine Power Section
  > 125 HRS AFTER MAJOR REPAIR BY RAM AIRCRAFT FRONT TWO THROUGH BOLTS FOUND BELOW MINIMUM TORQUE AND LEAKING OIL.
- [SDR 2019FA0000266](https://openairdocs.org/sdr/2019FA0000266.md): Camshaft · spalled · Aug 19, 2019 · Cessna TU206F · Reciprocating Engine Power Section
  > FOUND EXCESSIVE AMOUNT OF FERROUS METAL IN OIL FILTER DURING NORMAL MAINTENANCE. UPON INSPECTION FOUND 5/6 CAM LOB SPALLED. THIS IS THE SECOND WORN CAM IN THIS ENGINE IN THREE YEARS.
- [SDR CA190402009](https://openairdocs.org/sdr/CA190402009.md): Bearing Race · corroded · Mar 28, 2019 · Cessna TU206G · Propeller System
  > (CAN) ENGINE COULD NOT ATTAIN TAKE OFF RPM. PROPELLER WAS REMOVED AND BENCH TESTED. IT WAS FOUND THAT IT WOULD NOT CYCLE INTO FINE PITCH. UPON DISASSEMBLY IT WAS FOUND THAT THE BEARING RACES, RETAINERS AND BALLS WERE SEVERELY CORRODED. PROPELLER WAS REASSEMBLE
- [SDR 2017FA0000401](https://openairdocs.org/sdr/2017FA0000401.md): Post · cracked · Feb 27, 2017 · N9438M · Cessna TU206G · Wing Main, Frame Structure
  > DURING LOWER FWD DOOR POST AND STRUT FITTING INSPECTION REQUIRED BY SERVICE BULLETIN SEB935R1, FOUND A CRACK IN RADIUS OF CORNER ADJACENT TO AND DISAPPEARING UNDER THE STRUT FITTING.
- [SDR 2015FA0000000](https://openairdocs.org/sdr/2015FA0000000.md): Cylinder · cracked · Jan 5, 2015 · N5120X · Cessna U206G · Reciprocating Engine Cylinder Section
  > DURING ANNUAL INSPECTION, 5 OUT OF 6 CYLINDERS APPEARED TO BE CRACKED AT THE UPPER SPARK PLUG HOLE.
- [SDR CA140714002](https://openairdocs.org/sdr/CA140714002.md): Oil System · malfunctioned · Jul 11, 2014 · Cessna TU206G · Engine (Reciprocating)
  > (CAN) ENGINE REMOVED FOR TEARDOWN AND INSPECTION DUE PERSISTENT LOW OIL PRESSURE, HIGH OIL TEMPERATURE. AIRCRAFT REMOVED FROM SERVICE.
- [SDR CA130809002](https://openairdocs.org/sdr/CA130809002.md): Spar · cracked · Aug 9, 2013 · Cessna TU206G · Elevator, Spar/Rib
  > (CAN) WHILE COMPLYING WITH SB SEB85-7, REV 3, TO REPLACE RT ELEVATOR TRIM TAB AND LT & RT T/E WEDGES DUE TO THE FOAM CORES WERE SATURATED, IT WAS DISCOVERED THAT THE AFT SPAR OF THE ELEVATOR, ITSELF, WAS CRACKED.
- [SDR 2012FA0000306](https://openairdocs.org/sdr/2012FA0000306.md): Bulkhead · cracked · Apr 23, 2012 · N6824R · Cessna T210G · Fuselage Main, Bulkhead
  > AFT BULKHEAD INSPECTED IAW AD 72-07-09. FOUND A CRACK IN LOWER INBD CORNER OF RT CUTOUT. REPLACED BULKHEAD.
- [SDR 2012FA0000157](https://openairdocs.org/sdr/2012FA0000157.md): Bolt · loose · Feb 16, 2012 · N232MT · Cessna TU206G · DC Generator-Alternator
  > DURING TROUBLESHOOTING FOR ALTERNATOR NOISE, INSPECTED ALTERNATOR AND FOUND BOLT LOOSE INSIDE ALTERNATOR CASE. REMOVED ALTERNATOR AND DISASSEMBLED, FOUND DIODE RECTIFIER BRIDGE BOLT HAD BACKED OUT AND HAD CONTACTED THE ROTOR, BENDING THE BOLT AND ELONGATING T
- [SDR 2012FA0000068](https://openairdocs.org/sdr/2012FA0000068.md): Governor · disintegrated · Jan 25, 2012 · Cessna TU206G · Propeller Governor
  > PROP GOVERNOR BEARING IN THE IDLER PART OF THE OIL PUMP DISINTEGRATED.
- [SDR SQP2011F00000](https://openairdocs.org/sdr/SQP2011F00000.md): Cylinder Head · separated · Aug 29, 2011 · N6993N · Cessna T210N · Reciprocating Engine Cylinder Section
  > PILOT REPORTED LOUD BANG ON CLIMBOUT. RETURNED WITHOUT INCIDENT TO FIELD. UPON EXAMINATION FOUND NR 4 CYLINDER HEAD SEPARATED FROM CYLINDER AT 5TH COOLING FIN ON HEAD. ENGINE TSO AND CYLINDER TSN 817.6 HRS. LAST COMPRESSION CHECK WAS AT 100 HR INSPECTION 1
- [SDR 2011FA0000270](https://openairdocs.org/sdr/2011FA0000270.md): Nut · loose · Apr 11, 2011 · Cessna TU206G · Reciprocating Engine Oil System
  > SHORTLY AFTER INSTALLATION, THE ENG BEGAN AN OIL LEAK, UP FRONT ON THE RT SIDE NEAR THE OIL COOLER. OIL COOLER WAS REMOVED, FOUND THAT THE NUTS THAT HOLD THE OIL COOLER ADAPTER WERE LOOSE AND COULD BE REMOVED BY HAND. THIS ENGINE HAD 39.1 HOURS TSN ON IT WHE
- [SDR 2010FA0001222](https://openairdocs.org/sdr/2010FA0001222.md): Magneto · failed · Nov 4, 2010 · N7347N · Cessna TU206G · Magneto/Distributor
  > THIS O/H MAGNETO WAS INSTALLED ON THE ACFT IAW MM AND STANDARD PRACTICES, TIMED TO ENG IAW MM. THE ENGINE WAS RUNUP IAW POH AND THE MAG CHECK WAS SATISFACTORY. THE ENGINE WAS SHUTDOWN AND COWLING INSTALLED. AT THE NEXT ENGINE STARE, THE LT MAGNETO FAILED TO
- [SDR OW62010F00000](https://openairdocs.org/sdr/OW62010F00000.md): Cylinder · cracked · Feb 11, 2010 · N7608U · Cessna T207A · Reciprocating Engine Cylinder Section
  > FUEL STAIN ON OUTER ALUMINUM CASTING, CRACK FOUND BETWEEN COOLING FINS NEAR UPPER SPARKPLUG HOLE AND FUEL INJECTOR PORT. CRACK CONFIRMED BY PRESSURIZING INDUCTION SYSTEM AND SOAP BUBBLES. CRACK ORIGINATED IN THE INTAKE PORT AREA. THIS IS THE 3RD CYLINDER RE
- [SDR OW62009F00000](https://openairdocs.org/sdr/OW62009F00000.md): Cylinder · broken · Sep 12, 2009 · N7608U · Cessna T207A · Reciprocating Engine Cylinder Section
  > PART 135 OPERATOR WITH 6 PERSONS ON BOARD, SCENIC TOUR FLIGHT. NR 5 CYLINDER/BARREL SEPARATED IN FLIGHT. ACFT MADE EMERGENCY OFF-AIRPORT LANDING.
- [SDR 2009FA0000712](https://openairdocs.org/sdr/2009FA0000712.md): Cylinder · peeling · Jul 13, 2009 · N756MR · Cessna TU206G · Reciprocating Engine Cylinder Section
  > CYLINDER BARREL PEELING FOUND AFTER A LOW COMPRESSION TEST. THE BARREL PEELED IN AN AREA APPROX 2 INCHES WIDE. THE METAL CONTAMINATED THE ENG LUBRICATION SYS REQUIRING A COMPLETE TEARDOWN OF THE ENG. THIS CYL WAS INSTALLED AT ENG O/H ON 5/30/2009. (K)
- [SDR CA090706004](https://openairdocs.org/sdr/CA090706004.md): Engine · failed · Jun 18, 2009 · Cessna T207A · Engine (Reciprocating)
  > (CAN) ENGINE FAILED IN FLIGHT, WEATHER WAS GOOD, RESTART FAILED, ACFT MADE FORCED LANDING MINOR INJURIES. ACFT TO BE RECOVERED AND INVESTIGATED BY SAFETY BOARD.
- [SDR CA090707002](https://openairdocs.org/sdr/CA090707002.md): Aneroid · failed · Jun 10, 2009 · Cessna TU206G · Engine Fuel Pump
  > (CAN) FUEL PUMP ANEROID FAILED CAUSING ERRATIC FUEL FLOWS.
- [SDR M2L2009F00000](https://openairdocs.org/sdr/M2L2009F00000.md): Hinge Bracket · broken · May 11, 2009 · N7520N · Cessna TU206G · Ailerons
  > THIS PART HAS 2 SMALL 90 DEGREE ANGLES AT EITHER SIDE BOTTOM. THEY HAVE LITTLE OR NO ACTUAL STRENGTH OTHER THAN TO PREVENT THE LOWER WING SKIN FROM NOT BEING SECURED. RT AILERON OTBD HINGE BRACKET. (K)
- [SDR M2L2009F00001](https://openairdocs.org/sdr/M2L2009F00001.md): Hinge Bracket · broken · May 7, 2009 · N7520N · Cessna TU206G · Wing, Control Surface Attach Fittings
  > THIS PART HAD 1 OR 2, 90 DEGREE ANGLES ON THE BOTTOM SIDE, CRACKED. THIS WAS CAUSED MOST LIKELY FROM YEARS OF FATIGUE. DON`T THINK THIS WOULD HAVE CAUSED AN AIRWORTHINESS CONCERN AS IT DOES NOT APPEAR TO HAVE WEAKENED THE ATTACHMENT OF THE HINGE BRACKET. TH
- [SDR 2009FA0000321](https://openairdocs.org/sdr/2009FA0000321.md): Blade · cracked · Apr 15, 2009 · N803AN · Cessna T207A · Propeller Blade Section
  > THE ACFT WAS TAKEN OUT OF SERVICE DUE TO A BLADE THAT ROTATED FREELY IN THE HUB AND WAS NOT CONNECTED TO THE PITCH CHANGE MECHANISM. THE PROPELLER WAS DISASSEMBLED AND THE RETENTION AREA OF ONE BLADE WAS FOUND TO BE CRACKED APPROX 3 INCHES ACROSS THE RETENTIO
- [SDR 2009FA0000198](https://openairdocs.org/sdr/2009FA0000198.md): Cylinder · cracked · Mar 10, 2009 · N899RC · Cessna TU206G · Reciprocating Engine Cylinder Section
  > NR 4 CYLINDER BARREL CRACKED APPROX. 1INCH FROM THE TOP OF THE BARREL AND ALMOST.7500 INCH OF THE WAY AROUND THE INSIDE CIRCUMFERENCE. THIS WAS A NEW ECI FREEDOM STEEL BARREL CYLINDER. THE CYLINDER HAS TEST CELL AND GROUND RUN TIME ONLY, WHEN THE MECHANIC N
- [SDR 2009FA0000031](https://openairdocs.org/sdr/2009FA0000031.md): Spark Plug · cracked · Jan 21, 2009 · N92HC · Cessna TU206F · Reciprocating Engine Power Section
  > SPARK PLUG INSULATORS CRACKED AND FALLING APART. MULTIPLE PLUGS SHOW SIGNS OF SHORTING IN THE LEAD INSULATOR WELLS, FAILED SPARK PLUG PRESSURE CHECKS. SPARK PLUGS WERE REPLACED 12 MONTHS AGO AND HAVE TOTAL HOURS 380.
- [SDR 2007FA0000879](https://openairdocs.org/sdr/2007FA0000879.md): Selector Valve · mismanufactured · Sep 9, 2007 · N803AN · Cessna T207A · Fuel Selector/Shut-Off Valve
  > WHEN THE FUEL SELECTOR VALVE IS SELECTED TO THE RT TANK, FUEL IS BEING DELIVERED FROM THE LT TANK, VISE VERSA. THIS WAS DISCOVERED DURING A SHORT FLIGHT IN WHICH THE PILOT NOTICED THE RT TANK FUEL GAUGE WAS DROPPING WHEN THE LT TANK WAS SELECTED. THIS WAS LA
- [SDR 2007FA0000359](https://openairdocs.org/sdr/2007FA0000359.md): Fitting · cracked · Apr 3, 2007 · N803AN · Cessna T207A · Horizontal Stabilizer Structure
  > FWD RT STABILIZER FITTING CRACKED. FOUND CRACKED FITTING UPON ANNUAL INSPECTION OF EMPENNAGE. (K)
- [SDR CA070119009](https://openairdocs.org/sdr/CA070119009.md): Spar · failed · Jan 16, 2007 · Cessna TU206G · Wing Spar
  > (CAN) EDGE DISTANCE OF RIVETS ON LOWER FLANGE LESS THAN MINIMUM ALLOWED. REPLACEMENT OF PART REQUIRED TO REPAIR PROBLEM. (TC NR 20070119009)
- [SDR CA070119010](https://openairdocs.org/sdr/CA070119010.md): Spar · failed · Jan 16, 2007 · Cessna TU206G · Wing Spar
  > (CAN) DURING REPLACEMENT OF LOWER OB SKIN, EDGE DISTANCE OF RIVETS THROUGH LOWER FLANGE LESS THAN MINIMUM ALLOWED IN 32 PLACES FROM STAT. 100.0 TO STAT. 154.00 REPLACEMENT OF PARTS REQUIRED TO REPAIR PROBLEM. (TC NR 20070119010)
- [SDR CA061218014](https://openairdocs.org/sdr/CA061218014.md): Seal · leaking · Dec 18, 2006 · Cessna TU206G · Propeller Blade Section
  > (CAN) BLADE GREASE SEAL FAILED. GREASE LEAVING HUB. PROP REMOVED AND SENT TO REPAIR FACILITY WHERE NEW SEALS WERE INSTALLED. PROP REINSTALLED AND A/C SERVICEABLE (TC NR 20061218014).
- [SDR 2006ADP09001](https://openairdocs.org/sdr/2006ADP09001.md): Wire Harness · cracked · Sep 1, 2006 · Cessna TU206G · Ignition System Wiring
  > DURING INSPECTION ON A NEW, LOW TIME ENGINE, THE MT NOTICED A RATHER LARGE CRACK IN THE RT IGNITION HARNESS COVER, WHERE THE HARNESS ATTACHES TO THE MAGNETO. AFTER LOOKING A LITTLE CLOSER, IT IS CLEAR THAT THE CRACK WAS THERE PRIOR TO OVERHAUL AND PAINTING.
- [SDR 2006FA0000666](https://openairdocs.org/sdr/2006FA0000666.md): Impeller · mismanufactured · Jun 23, 2006 · N50901 · Cessna TU206F · Reciprocating Engine Oil System
  > INSTALLED NEW ENGINE FOLLOWED RECOMMENDED PROCEDURES FOR BREAK IN. REMOVED & CUT OPEN OIL FILTER AT 1.4 HRS TTSN, AT 7.9HRS, & AT 24.7HRS. NORMAL PRACTICE WITH A NEW OR OVERHAULED ENGINE. EACH TIME FILTERS WERE NORMAL FOR A NEW ENGINE. ACFT DUE A 100 HR INS
- [SDR CA060511001](https://openairdocs.org/sdr/CA060511001.md): Door Frame · cracked · May 11, 2006 · Cessna T207A · Fuselage Main, Structure
  > .5 INCH CRACK FOUND IN LOWER LT DOOR POST JAMB DURING ROUTINE INSPECTION.
- [SDR MPVMANIFOLD](https://openairdocs.org/sdr/MPVMANIFOLD.md): Fuel Divider · leaking · Mar 28, 2006 · Cessna TU206G · Fuel Divider
  > FUEL MANIFOLD VALVE IS LEAKING FROM THE VENT PORT.
- [SDR CA060316004](https://openairdocs.org/sdr/CA060316004.md): Fitting · gouged · Mar 6, 2006 · Cessna T207A · Wing Miscellaneous Structure
  > DURING WING REMOVAL FOR PAINT, LT LOWER WING STRUT FITTING WAS FOUND TO HAVE A GOUGE OF APPROXIMATELY 1/8" FROM STRUT FAIRING SCREW.
- [SDR 2006ADP001](https://openairdocs.org/sdr/2006ADP001.md): Cylinder · cracked · Feb 24, 2006 · Cessna TU206G · Reciprocating Engine Cylinder Section
  > ALL SIX CYLINDERS HAVE CRACKS IN THE SAME AREA JUST ABOVE THE TOP SPARK PLUG HOLE.
- [SDR MAFALT4](https://openairdocs.org/sdr/MAFALT4.md): Rotor · failed · Sep 2, 2005 · Cessna TU206G · AC Generation System
  > ELECTROSYSTEM WOES CONTINUE, WITH ANOTHER ROTOR GOING BAD. DETAILS: M/N DOFF10300BR S/N B110413 WITH A TS0:1095.1 ON THE ALTERNATOR. THE ROTOR WAS CHANGED 3 DIFFERENT TIMES ON THIS ALTERNATOR AND IT RAN ON FOUR DIFFERENT A/C IN IT'S LIFE HERE. THIS LAST RO
- [SDR 2006FA0000287](https://openairdocs.org/sdr/2006FA0000287.md): Cylinder · cracked · Aug 22, 2005 · Reciprocating Engine Cylinder Section
  > 5 OF 6 CYLINDERS CRACKED: ( SN 11501-23, 11501-11, 11556-01, 10644-18 CRACKED EXHAUST SIDE) (11909-27 CRACKED INTAKE SIDE) AT 439.5 HOURS. (K)
- [SDR 2006FA0000288](https://openairdocs.org/sdr/2006FA0000288.md): Cylinder · cracked · Aug 22, 2005 · Reciprocating Engine Cylinder Section
  > 5 OF 6 CYLINDERS CRACKED, (SN NR 11501-23, 11501-11, 11556-01, 10644-18 CRACKED EXHAUST SIDE) (SN NR 11901-27 CRACKED INTAKE SIDE) CRACKED AT 439.5 HOURS. (K)
- [SDR 2006FA0000289](https://openairdocs.org/sdr/2006FA0000289.md): Cylinder · cracked · Aug 22, 2005 · Reciprocating Engine Cylinder Section
  > 5 OF 6 CYLINDERS CRACKED. (SN NR 11501-23, 11501-11, 11556-01, 10644-18, 11909-27 CRACKED EXHAUST SIDE) (SN NR 11909-27 CRACKED INTAKESIDE) CRACKED AT 439.5 HOURS. (K)
- [SDR 2006FA0000290](https://openairdocs.org/sdr/2006FA0000290.md): Cylinder · cracked · Aug 22, 2005 · Reciprocating Engine Cylinder Section
  > 5 OF 6 CYLINDERS CRACKED. (S/N 11501-23, 11501-11, 11556-01, 10644-18 CRACKED AT EXHAUST SIDE) ( S/N 11909-27 CRACKED AT INTAKE SIDE) CRACKED AT 439.5 HOURS. (K)
- [SDR 2006FA0000291](https://openairdocs.org/sdr/2006FA0000291.md): Cylinder · cracked · Aug 22, 2005 · Reciprocating Engine Cylinder Section
  > 5 OF 6 CYLINDERS CRACKED (S/N 11501-23, 11501-11, 11556-01, 10644-18 CRACKED EXHAUST SIDE) (S/N 11909-27 CRACKED ON INTAKE SIDE) CRACKED AT 439.5 HOURS. (K)
- [SDR GAJ2005F00001](https://openairdocs.org/sdr/GAJ2005F00001.md): Control Cable · frozen · Aug 15, 2005 · N7537N · Cessna TU206G · Mixture Control
  > 3/25/04, HOBBS 3218.1, TTAF 9745.1, REMOVED AND REINSTALLED ENGINE, THROTTLE, MISTURE AND PROP CONTROLS. 7/22/04, HOBBS 3417.7, TTAF 9944.0, VERNIER CONTROL RELEASE BUTTON FROZE IN PUSHED POSITION, REMOVED MIXTURE CONTROL CABLE AND REPLACED WITH NEW. 8/12/05
- [SDR 2005FA0001134](https://openairdocs.org/sdr/2005FA0001134.md): Fitting · broken · Jul 28, 2005 · N9482M · Cessna T207A · Fuselage, Stabilizer Attach Fittings
  > PILOT FOUND VERTICAL STABILIZER LOOSE ON PREFLIGHT. MAINTENANCE INSPECTED AND FOUND RT FWD ATTACHMENT FITTING BROKEN. REPLACED BOTH FWD FITTINGS WITH NEW PARTS. (K)
- [SDR DUKESPUMPPKMP](https://openairdocs.org/sdr/DUKESPUMPPKMP.md): Pump · leaking · Apr 5, 2005 · Cessna TU206G · Engine Fuel Pump
  > PUMP IS LEAKING AT THE SEAL AT THE BASE OF THE PUMP-NEAR/AT DRAIN PIPE.
- [SDR DUKESPUMPMPG](https://openairdocs.org/sdr/DUKESPUMPMPG.md): Pump · leaking · Apr 5, 2005 · Cessna TU206G · Engine Fuel Pump
  > PUMP IS LEAKING AT THE SEAL AT THE BASE OF THE PUMP, NEAR DRAIN PIPE.
- [SDR MAFALT1](https://openairdocs.org/sdr/MAFALT1.md): Alternator · open · Apr 4, 2005 · Cessna TU206G · DC Generating System
  > OPEN FIELD WINDING.
- [SDR MAFALT2](https://openairdocs.org/sdr/MAFALT2.md): Alternator · open · Apr 4, 2005 · Cessna TU206G · DC Generating System
  > OPEN FIELD WINDING AT SLIP RING (WIRE BROKEN AT SOLDER JOINT).
- [SDR MAFALT3](https://openairdocs.org/sdr/MAFALT3.md): Wire · open · Apr 4, 2005 · Cessna TU206G · Electrical Power System Wiring
  > OPEN FIELD WINDING AT SLIP RING (WIRE BROKEN AT SOLDER JOINT).

Next page: https://openairdocs.org/engine/continental-tsio-520-m/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 = 'TSIO520M'
ORDER BY difficulty_date DESC
```

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

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