# Service difficulty reports: Lycoming O-235-H2C

A list on [Lycoming O-235-H2C](https://openairdocs.org/engine/lycoming-o-235-h2c.md).

Newest first. General aviation reporting is voluntary.

- [SDR AUS20031254](https://openairdocs.org/sdr/AUS20031254.md): Spark Plug · worn · Dec 5, 2003 · Grob G115 · Spark Plug/Igniter
  > (AUS) SEVERAL SPARK PLUGS WORN/FOULED.
- [SDR AUS20021347](https://openairdocs.org/sdr/AUS20021347.md): Cylinder · cracked · Nov 21, 2002 · Grob G115 · Reciprocating Engine Cylinder Section
  > (AUS) NR 2 CYLINDER CRACKED IN AREA ADJACENT TO THE ATTACHMENT FLANGE. CRACK LENGTH APPROXIMATELY 100MM (3.93IN).
- [SDR AUS20021095](https://openairdocs.org/sdr/AUS20021095.md): Cylinder · separated · Oct 8, 2002 · Grob G115 · Reciprocating Engine Cylinder Section
  > (AUS) NR 1 CYLINDER SEPARATED. THE CYLINDER BASE FLANGE WAS STILL CONNECTED TO THE CRANKCASE.
- [SDR AU000710](https://openairdocs.org/sdr/AU000710.md): Pin · broken · Sep 1, 2000 · Grob G115 · Main Landing Gear Strut/Axle/Truck
  > (AUS) MAIN LANDING GEAR AXLE PIN BROKEN BETWEEN WHEEL NUT AND SPAT RETAINER CAP. (X)
- [SDR 20000516SH003](https://openairdocs.org/sdr/20000516SH003.md): Plug · making metal · Mar 2, 2000 · N95512 · Cessna 152 · Reciprocating Engine Cylinder Section
  > WHILE PERFORMING ANNUAL INSP, ALUMINUM SHAVINGS FOUND IN OIL FILTER. FILTER WAS SENT TO LYC FOR ANALYSIS AND DETERMINED TO BE PISTON PIN PLUG MATERIALS. UPON REMOVAL OF ALL 4 CYL, SEVERE PITTING FOUND AT BOTTOM OF EACH CYL WHICH AT POINT WHERE PISTON REACHE
- [SDR AU000038](https://openairdocs.org/sdr/AU000038.md): Cylinder · cracked · Jan 19, 2000 · Grob G115 · Reciprocating Engine Cylinder Section
  > (AUS) NR 4 CYLINDER CRACKED AROUND THE CYLINDER BASE FOR APPROXIMATELY 66 PERCENT OF THE CIRCUMFERENCE.
- [SDR AU990580](https://openairdocs.org/sdr/AU990580.md): Cylinder · cracked · Jun 18, 1999 · Reciprocating Engine Cylinder Section
  > (AUS) NR 3 CYLINDER CRACKED AROUND THE CIRCUMFERENCE OF THE CYLINDER BASE.
- [SDR AU990449](https://openairdocs.org/sdr/AU990449.md): Balance Weight · corroded · May 19, 1999 · Grob G115C · Trailing Edge Flaps
  > (AUS) LEFT AND RIGHT FLAP MASS BALANCE WEIGHTS CORRODED. THE LEFT SIDE WEIGHT HAS CORRODED SUFFICIENTLY TO BURST THROUGH THE FIBERGLASS CASING.
- [SDR AU981430](https://openairdocs.org/sdr/AU981430.md): Fork · delaminated · Nov 2, 1998 · Grob G115C · Nose/Tail Landing Gear Strut/Axle
  > (AUS) NOSE LANDING GEAR FORK DELAMINATED. FORK IS CONSTRUCTED OF FIBERGLASS MATERIAL. PART TC: 1,019.
- [SDR AU981379](https://openairdocs.org/sdr/AU981379.md): Fork · delaminated · Oct 19, 1998 · Grob G115C · Nose/Tail Landing Gear Strut/Axle
  > (AUS) NOSE LANDING GEAR FIBERGLASS FORK DELAMINATED. SUBMITTER SUSPECTED CAUSE AS HEAVY LANDINGS. PART TC: 13,936.
- [SDR AU980331](https://openairdocs.org/sdr/AU980331.md): Tube · separated · Mar 26, 1998 · Fuel Control/Reciprocating Engines
  > (AUS) CARBURETOR ACCELERATOR PUMP DISCHARGE TUBE SEPARATED AND FELL INTO THE AIRBOX.
- [SDR AU980341](https://openairdocs.org/sdr/AU980341.md): Axle · cracked · Mar 20, 1998 · Grob G115C · Main Landing Gear Strut/Axle/Truck
  > (AUS) LT AND RT MAIN LANDING GEAR AXLES CRACKED.
- [SDR AU980342](https://openairdocs.org/sdr/AU980342.md): Axle · cracked · Mar 20, 1998 · Grob G115C · Main Landing Gear Strut/Axle/Truck
  > (AUS) LT AND RT MAIN LANDING GEAR AXLES CRACKED.
- [SDR AU980343](https://openairdocs.org/sdr/AU980343.md): Axle · cracked · Mar 20, 1998 · Grob G115C · Main Landing Gear Strut/Axle/Truck
  > (AUS) LT AND RT MAIN LANDING GEAR AXLES CRACKED.
- [SDR AU980344](https://openairdocs.org/sdr/AU980344.md): Axle · cracked · Mar 20, 1998 · Grob G115C · Main Landing Gear Strut/Axle/Truck
  > (AUS) LT AND RT MAIN LANDING GEAR AXLES CRACKED.
- [SDR AU980346](https://openairdocs.org/sdr/AU980346.md): Axle · cracked · Mar 20, 1998 · Grob G115C · Main Landing Gear Strut/Axle/Truck
  > (AUS) LT AND RT MAIN LANDING GEAR AXLES CRACKED.
- [SDR AU980347](https://openairdocs.org/sdr/AU980347.md): Axle · cracked · Mar 20, 1998 · Grob G115C · Main Landing Gear Strut/Axle/Truck
  > (AUS) LT AND RT MAIN LANDING GEAR AXLES CRACKED.

## 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 = 'O235H2C'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/engine/lycoming-o-235-h2c/reports

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