# Service difficulty reports: Lycoming O-320 series

A list on [Lycoming O-320 series](https://openairdocs.org/engine/lycoming-o-320-series.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 7 · 346 reports

- [SDR 2026FA0000681](https://openairdocs.org/sdr/2026FA0000681.md): Gascolator · dirty · Sep 3, 2026 · N172UZ · Cessna 172P · Engine (Reciprocating)
  > PILOT REPORTED LOW POWER AND VIBRATION ON TAKEOFF AND ABORTED TAKEOFF. CLEANED GASCOLATOR AND AGGRESSIVELY FUEL TANKS AND BELLY SUMPS. NO WATER WAS PRESENT. VERIFIED PROPELLER TORQUE AND CHECKED DYNAMIC BALANCE DUE TO A RECENT PROPELLER INSTALLATION. PROPELLER
- [SDR 2026FA0000408](https://openairdocs.org/sdr/2026FA0000408.md): Impulse Coupling · unserviceable · May 19, 2026 · N797GA · Gulstm GA7 · Magneto/Distributor
  > MAGNETO REMOVED FOR IMPULSE COUPLING INSPECTION. CHAMPION PRODUCED IMPULSE COUPLING FOUND INSTALLED. BOTH RIVETS HOLDING THE PAWLS IN WERE FOUND TO BE BENT.
- [SDR 2026FA0000164](https://openairdocs.org/sdr/2026FA0000164.md): Cylinder Head · cracked · Mar 10, 2026 · Reciprocating Engine Cylinder Section
  > I HAVE MULTIPLE CRACKED CYLINDERS BETWEEN O-320-D2J AND O-320-D3G ENGINES, THE CYLINDER IS ALL CRACKING IS IN THE SAME LOCATION NEAR THE INTAKE PORT OF THE CYLINDER. THE FAILURE TIMES HAVE BEEN BETWEEN 1087.1 SFRM, 1980.5 SFOH, 1282.1 SFRB, MOST RECENTLY I HA
- [SDR 2026FA0000159](https://openairdocs.org/sdr/2026FA0000159.md): Cylinder · cracked · Mar 5, 2026 · N70052 · Cessna 172M · Reciprocating Engine Cylinder Section
  > POSITION # 1 &2 CYLINDER EXHAUST PORT CRACK FROM THE INBOARD EXHAUST STUD EXTENDING TO THE BACK OF THE PORT. CRACK VISIBLE THROUGH THE FINS. SUPERIOR CYLINDERS PN: SL32006W-A1 SERIAL NUMBER 326W000003625 & 326W000003623.
- [SDR 2025FA0000780](https://openairdocs.org/sdr/2025FA0000780.md): Cylinder · cracked · Nov 24, 2025 · Reciprocating Engine Cylinder Section
  > DURING ROUTINE ANNUAL/100HOUR INSPECTIONS 9 CYLINDERS HAVE BEEN FOUND TO BE CRACKED IN THE SAME LOCATION BETWEEN 4 DIFFERENT AIRCRAFT. ON THE LYCOMING O-320 SERIES OF ENGINES. THEY HAVE BEEN FOUND BETWEEN 591 AND 2261 HOURS.
- [SDR 2023FA0000086](https://openairdocs.org/sdr/2023FA0000086.md): Oil System · leaking · Jan 24, 2023 · N5171H · Cessna 172M · Turbine Engine Oil System
  > N5171H, C172, DECLARED AN EMERGENCY DUE TO SMOKE IN THE COCKPIT AND LANDED WITHOUT INCIDENT. 01/24/2023 1705Z///// MAINTENANCE FOUND THAT OIL CAME OUT OF THE OIL LINE GOING TO THE OIL PRESSURE GAGE AND WENT ONTO THE EXHAUST PIPE CAUSING THE SMOKE.
- [SDR 2021FA0000046](https://openairdocs.org/sdr/2021FA0000046.md): Engine · fire · Feb 15, 2021 · N6378M · Cessna 152 · Engine (Reciprocating)
  > THE ENGINE WAS OVERHAULED ON DECEMBER 10, 2020. IT WAS PLACED INTO SERVICE IN THE ABOVE AIRPLANE JANUARY 22, 2021. POST ENGINE INSTALLATION RUNS AND INITIAL FLIGHT WAS NORMAL. AFTER THE INITIAL (BREAK IN) FLIGHT WE CHANGED THE OIL, OIL FILTER AND SERVICED THE
- [SDR 8HBR20200629023](https://openairdocs.org/sdr/8HBR20200629023.md): Flapper Valve · failed · Jun 27, 2020 · N65259 · Cessna 172P · Engine Air Intake System
  > CARBURETOR HEAT FLAPPER VALVE MATERIAL FAILURE. A PIECE OF THE CARB HEAT FLAPPER VALVE MATERIAL SEPARATED FROM THE VALVE ASSEMBLY AND GOT STUCK IN THE THROTTLE BODY OF THE CARBURETOR, CAUSING SIGNIFICANT DEGRADATION OF THE ENGINE'S PERFORMANCE.
- [SDR 2020FA0000289](https://openairdocs.org/sdr/2020FA0000289.md): Mount · broken · Jun 5, 2020 · Aronca 15AC · Engine Mount Section
  > ENGINE MOUNT EARS ON TOP MOUNT TO AIRFRAME BROKE AT BEND LINE SOMETIME IN THE LIFE OF THE MOUNT. MOUNT FAILED ON START UP & TAXI ALLOWING ENG TO DROP FORWARD AND DOWN PULLING OIL PRESSURE GAUGE HOSE & ELECTRICAL LOOSE & COVERING WINDSCREEN WITH OIL. RW106 MO
- [SDR 2020FA0000076](https://openairdocs.org/sdr/2020FA0000076.md): Spark Plug · out of tolerance · Jan 22, 2020 · N6478D · Cessna 172N · Spark Plug/Igniter
  > ACFT EQUIPPED WITH REM 38E SPARK PLUGS, AN UNUSUALLY HIGH EGT READING, CHECKED THE MAGNETOS. SWITCHED FROM BOTH TO LEFT, THE ENGINE WAS RUNNING ON ONLY 3 CYLINDERS. FOUND THAT ONE OF THE 8 PLUGS WAS NOT FIRING. THE RESISTANCE OF 5 OF THE 8 PLUGS EXCEEDED
- [SDR 2020FA0000060](https://openairdocs.org/sdr/2020FA0000060.md): Plug · broken · Jan 14, 2019 · N31385 · Piper PA28161 · Reciprocating Engine Power Section
  > FLIGHT TRAINING. THE PIN CAP/PLUG BROKE OFF. THEN BROKE THE PISTON.
- [SDR 2018FA0000515](https://openairdocs.org/sdr/2018FA0000515.md): Skin · cracked · Dec 11, 2018 · N32361 · Piper PA28140 · Wing, Plate/Skin
  > ON ANNUAL INSPECTION TWO SMALL CRACKS WERE FOUND ON THE TOP OF THE RIGHT WING AND ONE SMALL CRACK ON THE TOP OF THE LEFT WING. THE FIRST CRACK WAS FOUND AT THE AFT EDGE OF A FLUSH HEAD RIVET THAT ATTACHED THE STRINGER TO THE SKIN ON THE INBOARD SIDE OF THE RI
- [SDR 2018FA0000516](https://openairdocs.org/sdr/2018FA0000516.md): Skin · damaged · Dec 11, 2018 · N32361 · Piper PA28140 · Wing, Plate/Skin
  > ON ANNUAL INSPECTION IT WAS FOUND THAT THE TRAILING EDGE CAP ON THE BOTTOM RIGHT INBOARD LONGITUDINAL EXTERIOR RUNNER HAD TWO POPPED RIVET HEADS AND SURFACE CORROSION. THIS WAS CAUSED BY AN INSUFFICIENT PROTRUSION OF THE BATTERY VENT LINE INTO THE AIRSTREAM W
- [SDR 2018FA0000521](https://openairdocs.org/sdr/2018FA0000521.md): Hose · collapsed · Jul 3, 2018 · N6580W · Piper PA28140 · Reciprocating Engine Oil System
  > INVESTIGATING HIGH OIL TEMPERATURE IT WAS DISCOVERED THAT APPROXIMATELY 4 INCHES OF THE INSIDE LAYER OF THE OIL SUPPLY HOSE TO THE OIL COOLER AT THE ENG END BEGINNING APPROX 2 INCHES FROM THE BEGINNING OF THE HOSE HAD COMPLETELY COLLAPSED INWARD BLOCKING ALMOS
- [SDR 2018FA0000201](https://openairdocs.org/sdr/2018FA0000201.md): Cylinder · failed · Jun 29, 2018 · N26794 · Amrgen AA5A · Reciprocating Engine Cylinder Section
  > DURING A 100 HOUR INSPECTION, DISCOVERED THAT CYLINDERS NR 1 AND 3 HAD COMPRESSIONS IN THE 20PSI RANGE. ATTEMPTS TO CORRECT THIS WERE NOT SUCCESSFUL. CYLINDERS NR 1 AND 3 WERE REPLACED.
- [SDR 2018FA0000522](https://openairdocs.org/sdr/2018FA0000522.md): Shaft · fractured · Mar 30, 2018 · N54410 · Piper PA28151 · Magneto/Distributor
  > PILOT REPORTED A SMOOTH 200 RPM DROP ON RIGHT MAGNETO WHEN PERFORMING HIS PRE DEPARTURE ENG CHECK. REPLACING THE POINTS, CAPACITOR, CAM AND CAM GEAR DID NOT RESOLVE THE PROBLEM. AFTER CLOSER INVESTIGATION IT WAS FOUND THAT BY HOLDING THE MAGNETO DRIVE GEAR T
- [SDR 2018FA0000001](https://openairdocs.org/sdr/2018FA0000001.md): Engine · power loss · Jan 3, 2018 · N73435 · Cessna 172M · Engine (Reciprocating)
  > MOMENTARY 200 RPM DROP DURING CRUISE. MADE PRECAUTIONARY LANDING, PERFORMED ENGINE RUN UPS AND COULD NOT DUPLICATE THE MALFUNCTION.
- [SDR 2017FA0000168](https://openairdocs.org/sdr/2017FA0000168.md): Cylinder · cracked · Apr 12, 2017 · Cessna 172 · Reciprocating Engine Cylinder Section
  > NUMBER 1 CYLINDER CRACKED, ON CLIMB OUT.
- [SDR 2016FA0000498](https://openairdocs.org/sdr/2016FA0000498.md): Piston Ring · out of alignment · Oct 12, 2016 · N6984B · Piper PA18 · Reciprocating Engine Power Section
  > DURING TAKE OFF, WITH GLIDER IN TOW, AIRCRAFT EXPERIENCED AN UNCOMMANDED ENGINE SHUT DOWN. INVESTIGATION REVEALED THAT THE NR 3 PISTON RINGS WERE NOT INSTALLED PROPERLY.
- [SDR C2XA2016FA0000390](https://openairdocs.org/sdr/C2XA2016FA0000390.md): Carburetor · loose · Aug 26, 2016 · N15726 · Piper PA28140 · Fuel Control/Reciprocating Engines
  > COMPLAINT RECEIVED OF ENGINE, DEISELING, ON SHUTDOWN. FOUND CARBURETOR UPPER HALF AND LOWER SEPARATING AT MATING SURFACE. REMOVED CARBURETOR RETIGHTENED SCREWS AND RELOCKED LOCK TABS. ADJUSTED IDLE AND MIXTURE THIS IS THE SECOND CARB WITH THE SAME PROBLEM IN
- [SDR 2016FA0000382](https://openairdocs.org/sdr/2016FA0000382.md): Scissor Link · cracked · Aug 6, 2016 · N9184Y · Piper PA28161 · Main Landing Gear Strut/Axle/Truck
  > WHEN THE ACFT WAS ON FINAL TO RUNWAY 27, THE CONTROLLER THOUGHT THERE WAS SOMETHING THAT DIDN'T LOOK RIGHT WITH THE ACFT, SO HE UTILIZED BINOCULARS AND NOTICED THAT THE FIXED RT MAIN GEAR APPEARED TO BE HANGING ABNORMALLY FROM THE WING, BY ONLY THE HYDRAULIC B
- [SDR 2016FA0000391](https://openairdocs.org/sdr/2016FA0000391.md): Landing Gear · cracked · Jul 13, 2016 · N2496X · Piper PA28161 · Main Landing Gear
  > DURING ROUTINE INSPECTION AXLE STUB WAS FOUND CRACKED 75 PERCENT OF THE WAY AROUND. AREA INVOLVED WAS IN THE EAR AREA WHERE THE SCISSORS ATTACH AT THE LOWER END CASTING. WHERE SCISSORS ATTACH BOTH EARS WERE CRACKED ON THE INSIDE AND EXTENDING ACROSS THE WIDT
- [SDR 2016FA0000370](https://openairdocs.org/sdr/2016FA0000370.md): Rotor · cracked · Jun 9, 2016 · N13295 · Cessna 172M · Magneto/Distributor
  > AIRCRAFT CAME INTO SHOP FOR ANNUAL INSPECTION AND PILOT MENTIONED THAT ON LAST FLIGHT HE HAD AROUND A 300 RPM DROP ON RT MAGNETO. PILOT LEANED MIXTURE AND PERFORMED ANOTHER CHECK DURING THE ANNUAL INSPECTION THE TIMING VARIED FROM 25 TO 0 DEGREES BEFORE TOP D
- [SDR 2016FA0000134](https://openairdocs.org/sdr/2016FA0000134.md): Firewall · buckled · Mar 15, 2016 · N5110Q · Cessna 172 · Fuselage Main, Bulkhead
  > DURING ANNUAL INSPECTION, FOUND LOWER FIREWALL BUCKLED ON RT SIDE NEAR NLG REINFORCEMENT PLATE.
- [SDR ECPR2016022870382](https://openairdocs.org/sdr/ECPR2016022870382.md): Distributor Gear · broken · Feb 28, 2016 · N158ND · Piper PA28161 · Magneto/Distributor
  > WHILE PERFORMING THE PRE-FLIGHT RUN UP, THE RT MAGNETO DROP OFF WAS FOUND TO BE 400 RPM AND ROUGH.
- [SDR 2016FA0000117](https://openairdocs.org/sdr/2016FA0000117.md): Wire Harness · chafed · Feb 28, 2016 · N7168R · Piper PA28140 · Instrument System Wiring
  > AS THE AIRCRAFT WAS CLIMBING THROUGH 400 FEET AGL, THE PILOT DETECTED SMOKE COMING FROM UNDERNEATH THE LT HALF OF THE INSTRUMENT PANEL. THE PILOT DECLARED AN EMERGENCY AND RETURNED FOR LANDING ON RUNWAY 22R. AFTER LANDING, THE PILOT STATED THAT MELTED WIRIN
- [SDR 2016FA0000202](https://openairdocs.org/sdr/2016FA0000202.md): Oil Cooler · cracked · Jan 13, 2016 · N5499W · Piper PA28160 · Engine Oil Cooler
  > AFTER DEPARTURE, ACFT HAD SMOKE IN THE COCKPIT DUE TO A SPLIT IN THE OIL COOLER WHICH WAS GETTING OIL ON THE MUFFLER, CAUSING SMOKE. REPLACE PART WITH NEW PMA PN 800000075, SN 10427581.
- [SDR 2015FA0000463](https://openairdocs.org/sdr/2015FA0000463.md): Needle · dislodged · Sep 25, 2015 · N4335Z · Piper PA18A150 · Fuel Control/Reciprocating Engines
  > IDLE MIXTURE ADJUSTMENT KNOB AND NEEDLE FELL OUT OF THE CARBURETOR. 2ND OCCURRENCE.
- [SDR 2015FA0000389](https://openairdocs.org/sdr/2015FA0000389.md): Shaft · sheared · Jul 8, 2015 · N8119H · Piper PA28161 · Magneto/Distributor
  > THE ROTOR SHAFT THAT HOLDS THE GEAR ON ROTOR, PN: M3548 SHEARED OFF AT THE BASE OF THE ROTOR SHAFT. THIS RESULTED IN THE GEAR JAMMING UP INSIDE THE MAGNETO, WHICH ULTIMATELY LED TO THE FAILURE OF THE MAGNETO.
- [SDR KC2R1202201449575](https://openairdocs.org/sdr/KC2R1202201449575.md): Impulse Coupling · cracked · Dec 2, 2014 · N9815L · Cessna 172P · Magneto/Distributor
  > DURING PERFORMANCE OF MAGNETO "500 HOUR INSPECTION", IMPULSE COUPLING WAS FOUND TO BE CRACKED AT THE TAPER SEAT AND AT BOTH AXLE RIVET LOCATIONS ON BASE PLATE OF IMPULSE COUPLING ASSY. HAVE SEEN A VERY LARGE PERCENTAGE OF IMPULSE COUPLINGS DEVELOPE CRACKS IN S
- [SDR ECQR2014092500130](https://openairdocs.org/sdr/ECQR2014092500130.md): Magneto · failed · Sep 8, 2014 · N624FT · Piper PA28161 · Magneto/Distributor
  > ENGINE STALLED AFTER LANDING AND ENGINE STALLED TAXIING ON RUNWAY, TWICE. REPLACED CARBURETOR AT 206.3 HRS. AFTER 3RD WRITE UP, BOTH MAGNETOS WERE REMOVED. LT MAG 4371 FOUND EVIDENCE OF FLASHOVER IN DISTRIBUTOR BLOCK AS WELL AS A LOOSE DISTRIBUTOR POINT. B
- [SDR ECQR2014092500131](https://openairdocs.org/sdr/ECQR2014092500131.md): Magneto · failed · Sep 8, 2014 · N624FT · Piper PA28161 · Magneto/Distributor
  > THE ENGINE O/H AND INSTALLED 1/24/2014. ON 8/12/14 ENGINE STALLED AFTER LANDING AND ENGINE STALLED TAXIING ON RUNWAY, TWICE. 8/22/14, 9/5/14, REPLACED CARBURETOR AT 206.3 HRS. AFTER 3RD WRITE UP, BOTH MAGNETOS WERE REMOVED. LT MAG 4371 FOUND EVIDENCE OF FL
- [SDR ECPR201407080466](https://openairdocs.org/sdr/ECPR201407080466.md): Carburetor · malfunctioned · Jun 19, 2014 · N555PU · Piper PA28161 · Fuel Control/Reciprocating Engines
  > AFTER THE SECOND LANDING, THE THROTTLE WAS PULLED BACK BUT THE ENGINE RPM WOULD NOT GO BELOW 1900 RPM. UPON OPS AND VISUAL INSPECTION IT WAS DETERMINED THAT THE CARBURETOR ACCELERATOR PUMP DISCHARGE TUBE HAD COME LOOSE FROM ITS MOUNT AND LODGED IN THE THROTTL
- [SDR 2014FA0000262](https://openairdocs.org/sdr/2014FA0000262.md): Tube · punctured · Apr 23, 2014 · N106LE · Cessna 172N · Tire Tube
  > PIN HOLE IN SIDE OF INNER TUBE, NOSE GEAR.
- [SDR YAAA20140109001](https://openairdocs.org/sdr/YAAA20140109001.md): Crankcase · cracked · Jan 9, 2014 · N6332D · Cessna 172N · Reciprocating Engine Power Section
  > FOUND ENG LT CRANKCASE ASSEMBLY CRACKED DURING MAINTENANCE PRE-FLIGHT. REMOVED ENG & SENT CRANKCASE ASSEMBLY REPLACEMENT.
- [SDR 2013FA0000362](https://openairdocs.org/sdr/2013FA0000362.md): Seat Frame · cracked · Jun 20, 2013 · N98914 · Cessna 172P · Flight Compartment Equipment
  > SEAT WAS FOUND CRACKED WHERE SEAT BASE FRAMES EXTEND TO ATTACHMENT POINTS.
- [SDR CA130405003](https://openairdocs.org/sdr/CA130405003.md): Impulse Coupling · inoperative · Mar 30, 2013 · Piper PA18A135 · Magneto/Distributor
  > (CAN) DURING PREFLIGHT RUNUP A HIGH RPM DROP OFF WAS REPORT ON LT MAGNETO. NOT IMPULSE COUPLING ENGAGEMENT WAS NOTED DURING MAINTENANCE INSPECTION. UPON REMOVAL OF DEFECTIVE MAGNETO, THE IMPULSE COUPLING WAS OBSERVED TO BE NON FUNCTIONING AND MAGENTO DRIVE G
- [SDR 2013FA0000142](https://openairdocs.org/sdr/2013FA0000142.md): Axle · cracked · Feb 24, 2013 · N558J · Buker JUNGMANN1131 · Main Landing Gear Strut/Axle/Truck
  > LEFT WHEEL AXLE AND WHEEL SEPARATED FROM THE GEAR TRUSS.
- [SDR 2013FA0000154](https://openairdocs.org/sdr/2013FA0000154.md): Yoke · failed · Feb 19, 2013 · N66059 · Cessna 172P · Elevator Structure
  > DURING PREFLIGHT, PILOT COULDN`T MOVE ELEVATOR FLIGHT CONTROLS. MX FOUND WELD ASSY YOKE BROKEN OFF AND CORRODED INSIDE THE TUBE.
- [SDR 2012FA0000790](https://openairdocs.org/sdr/2012FA0000790.md): Structure · corroded · Dec 2, 2012 · N25315 · Socata TB9CTAMPICO · Horizontal Stabilizer Structure
  > THE HORIZONTAL STABILIZER MAIN SPAR ON THIS ACFT CAN NOT BE INSPECTED BY NORMAL MEANS AS IT IS A COMPLETELY SEALED UNIT WITH NO INSPECTION DOORS, HOLES, OR WINDOWS. (THERE ARE SOME VERY SMALL HOLES THAT ARE USED TO LOCK THE HINGE PINS BUT THEY ARE TO SMALL FO
- [SDR ECPR201211160001](https://openairdocs.org/sdr/ECPR201211160001.md): Valve Spring · broken · Nov 2, 2012 · N159ND · Piper PA28161 · Reciprocating Engine Cylinder Section
  > ACFT EXPERIENCED ROUGH RUNNING ENGINE INFLIGHT WITH LOSS OF MAX RPM. INSPECTION AFTER PRECAUTIONARY LANDING FOUND LOW COMPRESSION ON THE NR 2 CYLINDER. FURTHER INSPECTION FOUND THE NR 2 CYLINDER INNER AND OUTER EXHAUST VALVE SPRINGS BROKEN. BOTH SPRINGS REPL
- [SDR 2012FA0000728](https://openairdocs.org/sdr/2012FA0000728.md): Float · wrong part · Oct 15, 2012 · Fuel Control/Reciprocating Engines
  > CARBURETOR WAS SUBMITTED FOR INSPECTION. CUSTOMER STATED THE CARBURETOR WAS UNRESPONSIVE AT IDLE SHUT OFF. ALSO STATED BACKFIRING. DURING INSPECTION, NOTED THE CARBURETOR WAS FITTED WITH WHITE PLASTIC, ADVANCED POLYMER HOLLOW FLOAT. CARBURETOR FOUND NOT TO
- [SDR V0XR20120905J0073](https://openairdocs.org/sdr/V0XR20120905J0073.md): Fitting · corroded · Sep 4, 2012 · N668CA · Cndair CL6002C10 · Fuselage Main, Attach Fittings
  > RIGHT OTBD INTERCOSTAL FLOORMOUNT MACHINE FITTING IS CORRODED. R & R OTBD INTERCOSTAL FLOORMOUNT MACHINE FITTING IAW SRM 51-40-11 AND 51-42-21.
- [SDR 2012FA0000602](https://openairdocs.org/sdr/2012FA0000602.md): Circuit Breaker · inoperative · Aug 15, 2012 · N75603 · Cessna 172N · Communications System Wiring
  > NOTED A CLICKING ACCOMPANIED BY AMMETER INDICATING A HEAVY DISCHARGE. PROBLEM ISOLATED TO A CIRCUIT BREAKER THAT WASN`T TRIPPING THE INDICATOR BUTTON AND WAS WORKING AS AN AUTO RESET BREAKER. A SHORT WAS LOCATED WITHIN THE ALREADY PLACARDED " INOP" ADF. THE
- [SDR 2012FA0000573](https://openairdocs.org/sdr/2012FA0000573.md): Sending Unit · misinstalled · Aug 8, 2012 · N6094F · Cessna 172N · Fuel Indicating System
  > FUEL SENDERS, SERVICED, LEAK FUEL THROUGH THE MOUNTING FLANGE, WHICH IS BOLTED, OUTSIDE OF TANK, TO THE TOP OF THE FUEL TANK.
- [SDR 2012FA0000453](https://openairdocs.org/sdr/2012FA0000453.md): Cylinder · cracked · Jul 3, 2012 · N516PC · Piper PA28161 · Reciprocating Engine Cylinder Section
  > THE NR 4 CYLINDER BAFFLE CRACKS TOO OFTEN,SOMETIMES IN AS LITTLE AS 100HR. THIS BAFFLE SUPPORTS THE OTBD SIDE OF THE OIL COOLER, NEW PART FROM STOCK HAD A.025 GAP BETWEEN PIECES ON THE OIL COOLER MOUNTING FLANGE AND MOUNTING HOLES FOR THE OIL COOLER WERE MIS
- [SDR 2012FA0000630](https://openairdocs.org/sdr/2012FA0000630.md): Unknown · fire · Jun 26, 2012 · N18TN · Amtr LANCAIR235M · Standard Practices/Structures
  > ACFT WAS COMPLETELY DESTROYED AS A RESULT OF AN IN-FLIGHT FIRE AND RESULTING POST CRASH FIRE. THE FIRE APPEARS TO HAVE STARTED IN THE COCKPIT FROM AN UNKNOWN IGNITION SOURCE AND FED BY GASOLINE.
- [SDR 2012FA0000305](https://openairdocs.org/sdr/2012FA0000305.md): Brake Assy · cracked · Apr 25, 2012 · N13205 · Cessna 172M · Landing Gear Brake System
  > PART HAS A CRACK AT 1 OF THE BLEEDER PORTS. IT MAY HAVE BEEN FROM COMPONENT FAILURE, BUT IT MAY WELL HAVE BEEN CAUSED BY OVER-TIGHTENING.
- [SDR 2012FA0000212](https://openairdocs.org/sdr/2012FA0000212.md): Sleeve · mismanufactured · Feb 23, 2012 · N95155 · Cessna 172N · Aircraft Fuel Distribution System
  > FUEL LEAK OCCURED AT RIGHT AFT FUEL TANK OUTLET FITTING FUEL LINE FLARED FITTING JOINT. FUEL LINE WAS MANUFACTURED WITH A DEFECTIVE SLEEVE WITH A SHOULDER OF.045" AS OPPOSED TO THE STANDARD DIMMENSION OF.170. FOUND BACK OF FLARE CUT INTO AND NO LONGER ABLE
- [SDR 2011FA0000776](https://openairdocs.org/sdr/2011FA0000776.md): Battery · exploded · Dec 6, 2011 · N5374K · Cessna 172P · Battery/Charger System
  > ON ENGINE START-UP A LOUD POP WAS HEARD FROM UNDER THE COWL. INVESTIGATION SHOWED THAT THE BATTERY, A 24 VOLT, MODEL 243 INSTALLED IN 2007, HAD EXPLODED UPWARD. THIS BATTERY IS EQUIPPED WITH A CAST ALUMINUM SEALING COVER THAT IS HELD IN PLACE OVER THE CELLS B

Next page: https://openairdocs.org/engine/lycoming-o-320-series/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 = 'O320'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-o-320-series/reports

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