# Service difficulty reports: Lycoming IO-360-L2A

A list on [Lycoming IO-360-L2A](https://openairdocs.org/engine/lycoming-io-360-l2a.md).

Newest first. General aviation reporting is voluntary.

Page 1 of 20 · 992 reports

- [SDR 2026FA0000749](https://openairdocs.org/sdr/2026FA0000749.md): Propeller · misinstalled · Sep 21, 2026 · N848FG · Cessna 172S · Propeller Assembly
  > PROPELLER INSTALLED INCORRECTLY AT THE FACTORY, INCORRECT CLOCKING CAUSING PROPELLER BUSHINGS TO BACK OUT: THE PROPELLER CLOCKED INCORRECTLY WITH #1 CYLINDER AT TOP DEAD CENTER. THE FACTORY SAFETY CABLES SHOWING THIS PROP HASN'T BEEN REMOVED SINCE TAKING DELI
- [SDR 2026FA0000684](https://openairdocs.org/sdr/2026FA0000684.md): Seal · failed · Sep 5, 2026 · N225WS · Cessna 172S · Magneto/Distributor
  > AFTER COMPLETION OF THE ANNUAL INSPECTION, WE PERFORMED A POST INSPECTION RUN. DURING IDLE WE CHECKED EACH MAGNETO AND FOUND THAT THE ENGINE RAN SIGNIFICANTLY ROUGHER ON THE LEFT MAGNETO THAN THE RIGHT MAGNETO. AT HIGHER RPM OPERATION WAS NORMAL. REMOVED LEF
- [SDR 2026FA0000618](https://openairdocs.org/sdr/2026FA0000618.md): Pump · failed · Aug 4, 2026 · N190LP · Cessna 172S · Engine Fuel Pump
  > ENGINE DRIVEN FUEL PUMP FAILURE ALLOWED FUEL TO FLOOD ENGINE CRANKCASE. FOUND ON GROUND BEFORE FLIGHT.
- [SDR 2026FA0000519](https://openairdocs.org/sdr/2026FA0000519.md): Cylinder · cracked · Jun 15, 2026 · N5251Z · Cessna 172S · Reciprocating Engine Cylinder Section
  > PILOT REPORTED LOUD NOISE FROM ENGINE, SIGNIFICANT POWER LOSS, AND LOUD VIBRATIONS. PILOT LANDED AT A NEARBY AIRPORT WHERE MANTIENCE DISCOVERED A LARGE CRACK IN CYLINDER #2(HEAD SEPERATING FROM THE BARREL).
- [SDR 2026FA0000470](https://openairdocs.org/sdr/2026FA0000470.md): Shutoff Valve · leaking · May 15, 2026 · N25158 · Cessna 172S · Aircraft Fuel Distribution System
  > FUEL SHUT OFF VALVE NOT STOPPING FUEL COMPLETELY. FUEL DRIPPING FROM FUEL STRAINER DURING INSPECTION.
- [SDR 2026FA0000290](https://openairdocs.org/sdr/2026FA0000290.md): Button · melted · Apr 23, 2026 · N9520 · Cessna 172R · Reciprocating Engine Cylinder Section
  > UPON INSPECTION AFTER MAJOR ENGINE OVERHAUL, IT WAS DISCOVERED THAT THE ROCKER SHAFT THRUST BUTTONS HAD EITHER PARTIALLY OR COMPLETELY MELTED. A COMPLETE ENGINE TEARDOWN INSPECTION WAS THEN PERFORMED, ONLY ONE CYLINDER HAD BOTH THRUST BUTTONS COMPLETELY INTACT
- [SDR 2026FA0000285](https://openairdocs.org/sdr/2026FA0000285.md): Throttle Cable · severed · Apr 21, 2026 · N454AG · Cessna 172S · Power Lever
  > LOSS OF THROTTLE CONTROL IN FLIGHT, DUE TO SEVERED THROTTLE CABLE.
- [SDR NX422026031600011](https://openairdocs.org/sdr/NX422026031600011.md): Crankcase · gouged · Mar 13, 2026 · N979ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR ITS FIRST OVERHAUL, DAMAGE WAS FOUND ON THE LEFT HAND CRANKCASE HALF TO THREE THRU STUD BORE LOCATIONS. THE DAMAGE APPEARS TO BE A GOUGE WITH DISPLACED METAL JUST UNDER THE CYLINDER PADS JUST INSIDE THE THRU STUD BORES. SIMILAR DAMAGE ON O
- [SDR NX422026031600012](https://openairdocs.org/sdr/NX422026031600012.md): Stud · damaged · Mar 13, 2026 · N979ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR IT'S FIRST OVERHAUL, DAMAGE WAS FOUND ON ONE OF THE THRU STUDS. THE DAMAGE APPEARS TO BE DIPLSACED STEEL UNDER THE THREADED PORTION ON THE SHOULDER OF THE THRU STUD. A RELEVANT INDICATION IS SEEN UNDER MAGNETIC PARTICLE INSPECTION. THE LEF
- [SDR NX422026031600013](https://openairdocs.org/sdr/NX422026031600013.md): Crankcase · gouged · Mar 13, 2026 · N923ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR ITS FIRST OVERHAUL, DAMAGE WAS FOUND ON THE LEFT HAND CRANKCASE HALF ON ALL FOUR THRU STUD BORE LOCATIONS. THE DAMAGE APPEARS TO BE A GOUGE WITH DISPLACED METAL JUST UNDER THE CYLINDER PADS JUST INSIDE THE THRU STUD BORES. SIMILAR DAMAGE O
- [SDR 2026FA0000173](https://openairdocs.org/sdr/2026FA0000173.md): Coil · bent · Mar 11, 2026 · Cessna 172R · Magneto/Distributor
  > UNDER NORMAL FLIGHT OPERATIONS, AT FIRST ROUTINE 500-HOUR INSPECTION FOUND COIL TAB WORN OUT OF LIMITS BECAUSE THE TAB WAS INCORRECTLY BEND AT FACTORY.
- [SDR 2026FA0000167](https://openairdocs.org/sdr/2026FA0000167.md): Cylinder Head · cracked · Feb 25, 2026 · N212BS · Cessna 172S · Powerplant System
  > ENGINE WAS REPORTED RUNNING ROUGH, WAS FOUND TO HAVE A CRACK ON THE CYLINDER HEAD ON #4 CYLINDER. THE SAME PROBLEM WAS FOUND ON ANOTHER ENGINE, SAME TYPE AIRCRAFT, ENGINE AND CYLINDER.
- [SDR NX422026022700009](https://openairdocs.org/sdr/NX422026022700009.md): Crankcase · gouged · Feb 24, 2026 · N964ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR ITS FIRST OVERHAUL, DAMAGE WAS FOUND ON THE LEFT HAND CRANCASE TO ONE THRU STUD LOCATION. THE DAMAGE APPEARS TO BE A GOUGE WITH DISPLACED METAL JUST UNDER THE CYLINDER PAD INSIDE THE THRU STUD BORE. SIMILAR DAMAGE ON OTHER ENGINES WAS PREV
- [SDR NX422026022700010](https://openairdocs.org/sdr/NX422026022700010.md): Stud · displaced · Feb 24, 2026 · N964ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR IT'S FIRST OVERHAUL, DAMAGE WAS FOUND ON ONE OF THE THRU STUDS. THE DAMAGE APPEARS TO BE DISPLACED STEEL UNDER THE THREADED PORTION ON THE SHOULDER OF THE THRU STUD. THE DAMAGE IS MINOR BUT DUE TO THE SIMILAR LOCATION AND SEVERITY OF THE D
- [SDR NX422026021800007](https://openairdocs.org/sdr/NX422026021800007.md): Crankcase · gouged · Feb 17, 2026 · N909ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR ITS FIRST OVERHAUL, DAMAGE WAS FOUND ON THE LEFT HAND CRANCASE TO ALL 4 THRU STUD LOCATIONS. THE DAMAGE APPEARS TO BE A GOUGE WITH DISPLACED METAL JUST UNDER THE CYLINDER PAD INSIDE THE THRU STUD BORE. ON THREE OF THE THRU STUD BORES THE D
- [SDR NX422026021800008](https://openairdocs.org/sdr/NX422026021800008.md): Stud · displaced · Feb 17, 2026 · N909ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR IT'S FIRST OVERHAUL, DAMAGE WAS FOUND ON 2 OF THE THRU STUDS. THE DAMAGE APPEARS TO BE DISPLACED STEEL UNDER THE THREADED PORTION ON THE SHOULDER OF THE THRU STUD. THE DAMAGE IS MINOR BUT DUE TO THE SIMILAR LOCATION AND SEVERITY OF THE DAM
- [SDR NX422026021800005](https://openairdocs.org/sdr/NX422026021800005.md): Crankcase · gouged · Feb 16, 2026 · N934ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR ITS FIRST OVERHAUL, DAMAGE WAS FOUND ON THE LEFT HAND CRANCASE TO ALL 4 THRU STUD LOCATIONS. THE DAMAGE APPEARS TO BE A GOUGE WITH DISPLACED METAL JUST UNDER THE CYLINDER PAD INSIDE THE THRU STUD BORE. IN ADDITION, 1 OF THE THRU STUDS HAVE
- [SDR NX422026021800006](https://openairdocs.org/sdr/NX422026021800006.md): Stud · displaced · Feb 16, 2026 · N934ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR IT'S FIRST OVERHAUL, DAMAGE WAS FOUND ON 1 OF THE THRU STUDS. THE DAMAGE APPEARS TO BE DISPLACED STEEL UNDER THE THREADED PORTION ON THE SHOULDER OF THE THRU STUD. THE DAMAGE IS MINOR BUT DUE TO THE SIMILAR LOCATION AND SEVERITY OF THE DAM
- [SDR NX422026020600002](https://openairdocs.org/sdr/NX422026020600002.md): Stud · displaced · Feb 2, 2026 · N963ER · Cessna 172S · Reciprocating Engine Power Section
  > ON DISASSEMBLY FOR ITS 1ST OVERHAUL, DAMAGE FOUND ON 2 OF THRU STUDS. DAMAGE APPEARS TO BE DISPLACED STEEL UNDER THREADED PORTION ON SHOULDER OF THRU STUDS. ON 1 THRU STUD. DAMAGE IS SEVERE WITH DISPLACED METAL FROM SMALLER NECKED DOWN PORTION OF STUD UP TO
- [SDR NX422026020600001](https://openairdocs.org/sdr/NX422026020600001.md): Crankcase · gouged · Feb 2, 2026 · N963ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR ITS FIRST OVERHAUL, DAMAGE WAS FOUND ON THE LEFT HAND CRANCASE ON ALL 4 OF THE FLOATING THRU STUD LOCATIONS. THE DAMAGE APPEARS TO BE A GOUGE WITH DISPLACED METAL JUST UNDER THE CYLINDER PAD INSIDE THE THRU STUD BORES. IN ADDITION, 2 OF TH
- [SDR NX422026020600003](https://openairdocs.org/sdr/NX422026020600003.md): Crankcase · gouged · Feb 2, 2026 · N958ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR ITS FIRST OVERHAUL, DAMAGE WAS FOUND ON THE LEFT HAND CRANCASE TO THE UPPER MIDDLE FLOATING THRU STUD LOCATION. THE DAMAGE APPEARS TO BE A GOUGE WITH DISPLACED METAL JUST UNDER THE CYLINDER PAD INSIDE THE THRU STUD BORE. IN ADDITION, 2 OF
- [SDR NX422026020600004](https://openairdocs.org/sdr/NX422026020600004.md): Stud · displaced · Feb 2, 2026 · N958ER · Cessna 172S · Reciprocating Engine Power Section
  > UPON DISASSEMBLY FOR IT'S FIRST OVERHAUL, DAMAGE WAS FOUND ON 2 OF THE THRU STUDS. THE DAMAGE APPEARS TO BE DISPLACED STEEL UNDER THE THREADED PORTION ON THE SHOULDER OF THE THRU STUDS. THE DAMAGE APPEARS TO BE VERY MINOR BUT DUE TO THE SIMILAR LOCATION AND SE
- [SDR 2026FA0000198](https://openairdocs.org/sdr/2026FA0000198.md): Impulse Coupling · destroyed · Jan 23, 2026 · N126AV · Cessna 172S · Magneto/Distributor
  > PILOT REPORT OF FLUCTUATING RPM'S WHILE IN CRUISE FLIGHT, PLUS OR MINUS 400RPM. DURING GROUND RUN FOR TROUBLESHOOTING, RH MAGNETO MAG DROP WAS EXCESSIVE. FURTHER ATTEMPTS AT CLEARING PLUGS, ETC, TO THEN RECHECK RH MAGNETO DROP RESULTED IN COMPLETE ENGINE SHUT
- [SDR 2025FA0000775](https://openairdocs.org/sdr/2025FA0000775.md): Crankcase · gouged · Nov 20, 2025 · N957ER · Reciprocating Engine Power Section
  > DURING DISASSEMBLY OF THE ENGINE FOR OVERHAUL DAMAGE WAS FOUND ON THE LEFT CRANKCASE HALF AT EACH OF THE 4 THRU STUD CYLINDER PAD LOCATIONS. THE DAMAGE APPEARS TO BE A GOUGE DISPLACING SOME OF THE ALUMINUM CRANKCASE PAD DOWN INTO EACH OF THE THRU STUD BORE LOC
- [SDR 2025FA0000574](https://openairdocs.org/sdr/2025FA0000574.md): Elec Connector · intermittent · Aug 26, 2025 · N150SU · Cessna 172S · Engine Oil System Wiring
  > ENGINE OIL PRESSURE FLUCTUATES. REMOVED AND REPLACED THE OIL PRESSURE TRANSDUCER CONNECTOR JN004 PN: S2800-277 REFERENCING CESSNA/TEXTRON MODEL 172 (SERIES 1996 AND ON) WIRING DIAGRAM MANUAL REV A1, 77-40-01, FIGURE 03: SHEET 02 “ENGINE AND AIRFRAME MONITOR”.
- [SDR 2025FA0000575](https://openairdocs.org/sdr/2025FA0000575.md): Elec Connector · intermittent · Aug 26, 2025 · N210SU · Cessna 172S · Engine Oil System Wiring
  > ENGINE OIL PRESSURE ERRATIC. REMOVED AND REPLACED ENGINE OIL PRESSURE TRANSDUCER ELECTRICAL CONNECTOR (JN004) WITH NEW P/N S2800-277 REFERENCING CESSNA 172S WDG CH.79-30-01 (REV.A1). ENGINE RUN, OIL PRESSURE SYSTEM OPERATIONAL CHECK SATISFACTORY.
- [SDR IKBR2025082600576](https://openairdocs.org/sdr/IKBR2025082600576.md): Elec Connector · failed · Aug 26, 2025 · N20SU · Cessna 172S · Engine Oil System Wiring
  > ENGINE OIL PRESSURE ERRATIC. REMOVED AND REPLACED ENGINE OIL PRESSURE TRANSDUCER ELECTRICAL CONNECTOR (JN004) WITH NEW P/N S2800-277 REFERENCING CESSNA 172S WDG CH.79-30-01 (REV.A1). ENGINE RUN, OIL PRESSURE SYSTEM OPERATIONAL CHECK SATISFACTORY.
- [SDR 2025FA0000577](https://openairdocs.org/sdr/2025FA0000577.md): Elec Connector · intermittent · Aug 26, 2025 · N70SU · Cessna 172S · Engine Oil System Wiring
  > ENGINE OIL PRESSURE ERRATIC.REMOVED AND REPLACED ENGINE OIL PRESSURE TRANSDUCER ELECTRICAL CONNECTOR (JN004) WITH NEW P/N S2800-277 REFERENCING CESSNA 172S WDG CH.79-30-01 (REV.A1). ENGINE RUN, OIL PRESSURE SYSTEM OPERATIONAL CHECK SATISFACTORY.
- [SDR 2025FA0000578](https://openairdocs.org/sdr/2025FA0000578.md): Elec Connector · failed · Aug 26, 2025 · N90SU · Cessna 172S · Fuel System Wiring
  > FUEL PRESSURE INDICATIONS ERRATIC. REPLACE FUEL PRESSURE TRANSDUCER CONNECTOR (JN001) PN: S2800-277 REFERENCING TEXTRON MODEL 172 (SERIES 1996 AND ON) WIRING DIAGRAM MANUAL REV A1 SECTION 77-20-01, FIGURE 02 (REV A0).
- [SDR IKBR2025082600579](https://openairdocs.org/sdr/IKBR2025082600579.md): Elec Connector · intermittent · Aug 26, 2025 · N30SU · Cessna 172S · Engine Oil System Wiring
  > ENGINE OIL PRESSURE INDICATION ERRATIC. REMOVED AND REPLACED ENGINE OIL PRESSURE TRANSDUCER WIRING CONNECTOR WITH NEW P/N S2800-277 REFERENCING CESSNA 172S WDG CH.77-40-01 (REV. A1). ENGINE RUN, OIL PRESSURE OPERATIONAL CHECK SATISFACTORY.
- [SDR 2025FA0000643](https://openairdocs.org/sdr/2025FA0000643.md): Servo · contaminated · Aug 22, 2025 · N25194 · Cessna 172S · Engine Fuel Distribution
  > AIRCRAFT DIED IN RUNUP AREA TWICE. ONCE ON RAMP, ONCE IN RUNUP. FAILED IDLE CHECK. FUEL SERVO WAS REMOVED AND FOUND TO BE CONTAMINATED. REPLACED WITH NEW.
- [SDR 2025FA0000644](https://openairdocs.org/sdr/2025FA0000644.md): Servo · contaminated · Aug 21, 2025 · N25113 · Cessna 172S · Engine Fuel Distribution
  > AIRCRAFT HAD MOMENTARY POWER LOSS/VIBRATION AFTER ADDING FULL POWER ON A TOUCH AND GO. ABORTED TAKEOFF. TOOK AIRCRAFT TO A RUNUP AREA AND CYCLED THE ENGINE FROM POWER IDLE TO FULL POWER MULTIPLE TIMES AND COULD NOT RECREATE THE ISSUE. FUEL SERVO REPLACED.
- [SDR 2025FA0000602](https://openairdocs.org/sdr/2025FA0000602.md): Servo · contaminated · Aug 20, 2025 · N92228 · Cessna 172S · Aircraft Fuel Distribution System
  > MOMENTARY ENGINE ROUGHNESS/VIBRATION. CLIMBING OUT ON THE MISSED APPROACH AT CRQ, ENGINE LOST BETWEEN 200-400RPM AND BEGAN CHUGGING, I CHECKED MIXTURE WHICH WAS FULL RICH, LEANED SLIGHTLY, THE CHUGGING STOPPED. I THEN MOVED THE MIXTURE FULL RICH AND DID NOT EN
- [SDR 2025FA0000603](https://openairdocs.org/sdr/2025FA0000603.md): Servo · contaminated · Aug 7, 2025 · N1806M · Cessna 172S · Aircraft Fuel Distribution System
  > MOMENTARY ENGINE ROUGHNESS/VIBRATION/LOSS OF POWER. PILOT SQUAWK: PARTIAL LOSS OF ENGINE POWER RIGHT AFTER TAKEOFF, 200-300 RPMS, CAME BACK AFTER A COUPLE SECONDS BUT DID NOT WANT TO CONTINUE FLIGHT. FUEL SERVO REPLACED.
- [SDR ODAR2025080600002](https://openairdocs.org/sdr/ODAR2025080600002.md): Cylinder Head · cracked · Aug 6, 2025 · N694CP · Cessna 172S · Reciprocating Engine Cylinder Section
  > SUBSTANTIAL ENGINE VIBRATION REPORTED BY PILOT DURING FLIGHT. #4 CHT CONSISTENTLY ~40% HIGHER THAN OTHER CYLINDERS. MAG CHECKS NORMAL. VIBRATION REMAINED THE SAME REGARDLESS OF MAGS SELECTED. OIL PRESSURE AND TEMP REMAINED IN GREEN. PERFORMED COMPRESSION CHECK
- [SDR 2025FA0000526](https://openairdocs.org/sdr/2025FA0000526.md): Elec Connector · faulted · Jul 28, 2025 · N578CA · Cessna 172S · Engine Oil System Wiring
  > ERRATIC ENGINE OIL PRESSURE READINGS. REMOVED AND REPLACED ENGINE OIL PRESSURE TRANSDUCER ELECTRICAL CONNECTOR (JN004) P/N S2800-277 (KIT) AT THE TRANSDUCER.
- [SDR 2025FA0000527](https://openairdocs.org/sdr/2025FA0000527.md): Elec Connector · abnormal · Jul 28, 2025 · N260SU · Cessna 172S · Engine Oil System Wiring
  > ERRATIC ENGINE OIL PRESSURE INDICATION. REMOVED AND REPLACED ENGINE OIL PRESSURE TRANSDUCER ELECTRICAL CONNECTOR (JN004) P/N S2800-277 (KIT) AT THE TRANSDUCER.
- [SDR 2025FA0000516](https://openairdocs.org/sdr/2025FA0000516.md): Engine · auto shutdown · Jul 23, 2025 · N21483 · Cessna 172S · Engine (Reciprocating)
  > AIRCRAFT AND CREW EXPERIENCED ENGINE ROUGHNESS AND THE ENGINE QUITTING WHILE IN FLIGHT. THE CREW AND AIRCRAFT MADE AN UNPOWERED SAFE LANDING AT KARR (HOME AIRPORT). INITIAL INSPECTION FOUND THAT THE PROP WAS FREEWHEELING WITH NO RESISTANCE. NR 3 CYLINDER HAD A
- [SDR 2025FA0000400](https://openairdocs.org/sdr/2025FA0000400.md): Valve Guide · coked · Jun 11, 2025 · N187CA · Cessna 172S · Reciprocating Engine Cylinder Section
  > CREW REPORTED ROUGH RUNNING ENGINE/VIBRATION IN CRUISE FLIGHT LASTING 2-3 MINUTES ALONG WITH A # 2 CYLINDER EGT FLUCTUATION. TROUBLESHOT PROBLEM TO FIND # 2 CYLINDER EXHAUST VALVE STICKING.
- [SDR 2025FA0000384](https://openairdocs.org/sdr/2025FA0000384.md): Indication Sys · erratic · Jun 4, 2025 · N717TH · Cessna 172S · Engine Oil Pressure
  > ENGINE OIL PRESSURE INDICATION ERRATIC. ONLY FLUCTUATES IN FLIGHT. STEADY DURING GROUND OPERATIONS.
- [SDR 2025FA0000357](https://openairdocs.org/sdr/2025FA0000357.md): Piston · clogged · May 15, 2025 · N210SU · Cessna 172S · Landing Gear Brake System
  > RIGHT BRAKE LOCKED UP WHEN TAXIING TO RUNWAY, AIRCRAFT WENT INTO THE GRASS. NO DAMAGE TO AIRCRAFT.
- [SDR 2025FA0000296](https://openairdocs.org/sdr/2025FA0000296.md): Exhaust Valve · stuck · Apr 23, 2025 · N772FG · Cessna 172S · Reciprocating Engine Cylinder Section
  > EXTREME VIBRATION OF AIRCRAFT ENGINE AFTER START UP. TROUBLESHOT AND FOUND #4 CYLINDER EXHAUST VALVE STUCK OPEN
- [SDR 2025FA0000286](https://openairdocs.org/sdr/2025FA0000286.md): Impulse Coupling · broken · Apr 22, 2025 · N42007 · Cessna 172R · Magneto/Distributor
  > WHILE PERFORMING HARTZELL AVIATION ALERT S.B. NO. 225 IT WAS FOUND ON MAGNETO S/N H-Y103862 HAD A BROKEN IMPULSE CAM ASSEMBLY PIN. MAGNETO WAS INSTALLED 4/14/2025 AND REMOVED FOR INSPECTION ON 4/21/2025. HARTZELL AVIATION HAS BEEN NOTIFIED.
- [SDR IKBR2025041400264](https://openairdocs.org/sdr/IKBR2025041400264.md): Elec Connector · failed · Apr 14, 2025 · N100SU · Cessna 172S · Hydraulic Power System Wiring
  > CREW REPORTS TEMPORARY OIL PRESSURE LOSS ON APPROACH. ALL OTHER ENGINE INDICATIONS WERE NORMAL. UPON LANDING OIL PRESSURE RETURNED TO NORMAL. MECHANICS INSPECTED ENGINE. NO DEFECTS WERE NOTED. AVIONICS TECHNICIAN REPLACED THE OIL PRESSURE TRANSDUCER ELECTRICAL
- [SDR 2025FA0000217](https://openairdocs.org/sdr/2025FA0000217.md): Engine · power loss · Mar 27, 2025 · N796T · Engine (Reciprocating)
  > ON TAKE-OFF THE ENGINE LOST POWER MOMENTARILY AND PILOT WAS ABLE TO ABORT TAKE-OFF AND LAND WITHOUT INJURIES. POWER RESTORED ITS SELF AND TROUBLESHOOTING COULD NOT DUPLICATE THE LOSS OF POWER.
- [SDR 2025FA0000218](https://openairdocs.org/sdr/2025FA0000218.md): Engine · power loss · Mar 27, 2025 · N971TH · Cessna 172S · Engine (Reciprocating)
  > WHILE IN STRAIGHT AND LEVEL FLIGHT PILOT REPORTED THE ENGINE RPM REDUCED SIGNIFYINGLY RESULTING IN POWER LOSS. AFTER A BRIEF TIME THE ENGINE RPM BEGAN TO OPERATE NORMALLY AND POWER WAS RESTORED. PILOT LANDED WITHOUT INCIDENT. TROUBLESHOOTING COULD NOT DUPLI
- [SDR 2025FA0000206](https://openairdocs.org/sdr/2025FA0000206.md): Propeller · broken · Mar 14, 2025 · N500GP · Cessna 172S · Propeller Blade Section
  > N500GP LINED UP CENTERLINE ON RWY 05 @ KDYL, APPLIED TAKEOFF POWER, APPROXIMATELY 30-50FT ON ROLLOUT EXPERIENCED SUDDEN VIBRATION, PULLED POWER AND EXITED RWY AT NEAREST TAXIWAY. SHUT DOWN AND VISUALLY INSPECTED AIRCRAFT. NOTIFIED MAINTENANCE.
- [SDR N3XR202502280001](https://openairdocs.org/sdr/N3XR202502280001.md): Seal · failed · Feb 28, 2025 · N847ER · Cessna 172S · Engine Fuel Pump
  > FUEL WAS DISCOVERED IN ENGINE OIL. INSPECTION REVEALED THAT THE FUEL PUMP LW-15473 SEAL HAD FAILED AND LEAKED INTO THE OIL. THE ENGINE WAS CHANGED.
- [SDR 2025FA0000133](https://openairdocs.org/sdr/2025FA0000133.md): Cylinder Head · cracked · Feb 26, 2025 · N578CA · Cessna 172S · Reciprocating Engine Cylinder Section
  > ENGINE CYLINDER #2 CRACKED ACROSS COOLING FINS. CREW NOTICED LOSS OF POWER/SHUDDER. BURNING SMELL COMING THROUGH CABIN AIR VENTS.
- [SDR 2025FA0000134](https://openairdocs.org/sdr/2025FA0000134.md): Muffler · cracked · Feb 26, 2025 · N578CA · Cessna 172S · Engine Exhaust System
  > CREW REPORTS EXHAUST SMELL IN CABIN. VISUAL INSPECTION FOUND MUFFLER CRACKED.

Next page: https://openairdocs.org/engine/lycoming-io-360-l2a/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 = 'IO360L2A'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-io-360-l2a/reports

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