# NTSB investigations: Lycoming IO-320 series, IL

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB CEN26FA064](https://openairdocs.org/ntsb/CEN26FA064.md): Piper PA-30 · West Chicago, IL · Accident · 2 fatal · Class 3 · Field · Preliminary report · Dec 17, 2025 · N8693Y · Substantial damage
  > On December 17, 2025, about 1349 central standard time, a Piper PA-30 airplane, N8693Y, was substantially damaged when it was involved in an accident near West Chicago, Illinois. The pilot and pilot-rated passenger were fatally injured. The airplane was…
- [NTSB CEN23LA002](https://openairdocs.org/ntsb/CEN23LA002.md): Champion 7KCAB · Danville, IL · Accident · No injuries · Class 4 · Limited · Final report · Oct 2, 2022 · N869TT · Substantial damage
  > The pilot decision to perform a precautionary landing to a field with obstacles which resulted in a ground loop. Contributing was the pilot’s inadequate fuel planning.
- [NTSB GAA18CA360](https://openairdocs.org/ntsb/GAA18CA360.md): Cessna 172 · Salem, IL · Accident · No injuries · Data collection · Final report · Jun 14, 2018 · N98395 · Substantial damage
  > The student pilot’s failure to maintain clearance from a pole while taxiing the airplane on the ramp.
- [NTSB CEN16FA276](https://openairdocs.org/ntsb/CEN16FA276.md): Piper PA 30 · Plainfield, IL · Accident · 1 fatal · Field investigation · Final report · Jul 21, 2016 · N7409Y · Destroyed
  > The pilot's failure to maintain airplane control during an en route climb near convective activity, which resulted in an aerodynamic stall, an uncontrolled descent, and a subsequent in-flight breakup due to an exceedance of the airplane's design load…
- [NTSB CHI03LA212](https://openairdocs.org/ntsb/CHI03LA212.md): Cessna 172P · Pinckneyville, IL · Accident · No injuries · Limited investigation · Final report · Jul 14, 2003 · N98395 · Substantial damage
  > The planned approach not maintained by the pilot and the delayed remedial action by the certified flight instructor. A contributing factor to the accident was the approach light.
- [NTSB CHI97LA247](https://openairdocs.org/ntsb/CHI97LA247.md): Champion 7KCAB · Hampshire, IL · Accident · No injuries · Limited investigation · Final report · Aug 5, 1997 · N5066X · Substantial damage
  > the pilot's failure to maintain directional control of the airplane during landing, and his excessive use of brakes, which resulted in a nose over. Factors relating to the accident were: the crosswind condition, and the pilot's lack of experience in the make…
- [NTSB CHI89LA007](https://openairdocs.org/ntsb/CHI89LA007.md): Cessna 172 · Carbondale, IL · Accident · No injuries · Limited investigation · Final report · Oct 9, 1988 · N98395 · Substantial damage
  > The student pilot, while on the takeoff roll on his first solo flight, experienced a loss of directional control which he failed to correct. The aircraft swerved to the left and departed the runway, striking a VASI installation before coming to a stop. The…
- [NTSB CHI88LA022](https://openairdocs.org/ntsb/CHI88LA022.md): Piper PA-30B · Decatur, IL · Accident · No injuries · Limited investigation · Final report · Nov 10, 1987 · N7865Y · Substantial damage
  > The aircraft experienced a landing with the gear retracted. The pilot stated that he perceived the yellow light indication for the landing gear to mean 'down', instead of looking for a green light.
- [NTSB CHI82DA250](https://openairdocs.org/ntsb/CHI82DA250.md): Piper PA-30-160 · Salem, IL · Accident · No injuries · Final report · Jul 15, 1982 · N7047Y · Substantial damage
  > Pilot stated he had 3 green gear lights. During touchdown and roll the landing gear collapsed. The landing gear control switch collar was defective and if the pilot did not hold the gear selector in the down position it may have returned to off before the…
- [NTSB CHI80FEE11](https://openairdocs.org/ntsb/CHI80FEE11.md): Piper PA-30 · Chicago, IL · Accident · No injuries · Closed · Dec 6, 1979 · N7119Y · Substantial damage
- [NTSB CHI79DEV08](https://openairdocs.org/ntsb/CHI79DEV08.md): Bellanca 7G · Meredosia, IL · Accident · No injuries · Closed · Dec 19, 1978 · N53815 · Substantial damage
- [NTSB CHI79FEE16](https://openairdocs.org/ntsb/CHI79FEE16.md): Piper PA-30 · Kankakee, IL · Accident · No injuries · Closed · Dec 16, 1978 · N8143Y · Substantial damage
- [NTSB CHI78DEE71](https://openairdocs.org/ntsb/CHI78DEE71.md): Thorp T-18 · Schaumburg, IL · Accident · No injuries · Closed · Sep 1, 1978 · N711RF · Substantial damage
- [NTSB CHI78FEE58](https://openairdocs.org/ntsb/CHI78FEE58.md): Piper PA-30 · Wheeling, IL · Accident · No injuries · Closed · Jul 26, 1978 · N8788Y · Substantial damage
- [NTSB CHI78DEE57](https://openairdocs.org/ntsb/CHI78DEE57.md): Piper PA-30 · Monee, IL · Accident · No injuries · Closed · Mar 6, 1978 · N8665Y · Substantial damage
- [NTSB CHI76AC075](https://openairdocs.org/ntsb/CHI76AC075.md): Piper PA-30 · Joliet, IL · Accident · 4 fatal · Closed · Jul 1, 1976 · N7332Y · Destroyed
- [NTSB CHI75FEE08](https://openairdocs.org/ntsb/CHI75FEE08.md): Piper PA-30 · Chicago, IL · Accident · No injuries · Closed · Aug 1, 1974 · N1188Y · Substantial damage
- [NTSB CHI74FEV32](https://openairdocs.org/ntsb/CHI74FEV32.md): Piper PA-30 · Peoria, IL · Accident · No injuries · Closed · Dec 23, 1973 · N7087Y · Substantial damage
- [NTSB CHI72DEV27](https://openairdocs.org/ntsb/CHI72DEV27.md): Piper PA-30 · Urbana, IL · Accident · No injuries · Closed · Apr 12, 1972 · N1188Y · Substantial damage
- [NTSB CHI72FEV21](https://openairdocs.org/ntsb/CHI72FEV21.md): Piper PA-30 · Effingham, IL · Accident · No injuries · Closed · Jan 17, 1972 · N7216Y · Substantial damage
- [NTSB CHI72FEV08](https://openairdocs.org/ntsb/CHI72FEV08.md): Piper PA-30 · Bloomington, IL · Accident · No injuries · Closed · Aug 6, 1971 · N7696Y · Substantial damage
- [NTSB CHI70FBD22](https://openairdocs.org/ntsb/CHI70FBD22.md): Piper PA-30 · Dixon, IL · Accident · No injuries · Closed · Apr 3, 1970 · N7875Y · Substantial damage
- [NTSB CHI69F0085](https://openairdocs.org/ntsb/CHI69F0085.md): Piper PA-30 · Clinton, IL · Accident · No injuries · Closed · Jul 8, 1968 · N7656Y · Substantial damage
- [NTSB CHI68F0742](https://openairdocs.org/ntsb/CHI68F0742.md): Piper PA-30 · Wheeling, IL · Accident · No injuries · Closed · May 11, 1968 · N7805Y · Substantial damage
- [NTSB CHI68A0082](https://openairdocs.org/ntsb/CHI68A0082.md): Piper PA-30 · Alton, IL · Accident · 2 fatal · Closed · Mar 16, 1968 · N7643Y · Destroyed
- [NTSB CHI68F0563](https://openairdocs.org/ntsb/CHI68F0563.md): Piper PA-30 · Bloomington, IL · Accident · No injuries · Closed · Jan 24, 1968 · N7626Y · Substantial damage
- [NTSB CHI67A0077](https://openairdocs.org/ntsb/CHI67A0077.md): Piper PA-30B · Bloomington, IL · Accident · Serious injuries · Closed · Dec 16, 1966 · N8162Y · Substantial damage
- [NTSB CHI67F0450](https://openairdocs.org/ntsb/CHI67F0450.md): Piper PA-30 · Albion, IL · Accident · No injuries · Closed · Apr 26, 1966 · N7966Y · Substantial damage
- [NTSB CHI66F0145](https://openairdocs.org/ntsb/CHI66F0145.md): Piper PA-30 · Wheeling, IL · Accident · No injuries · Closed · Jul 23, 1965 · N7805Y · Substantial damage
- [NTSB CHI66F0085](https://openairdocs.org/ntsb/CHI66F0085.md): Piper PA-30 · Chicago, IL · Accident · No injuries · Closed · Jun 24, 1965 · N7544Y · Substantial damage
- [NTSB CHI65F0139](https://openairdocs.org/ntsb/CHI65F0139.md): Piper PA-30 · Urbana, IL · Accident · Minor injuries · Closed · Mar 9, 1965 · N7495Y · Substantial damage
- [NTSB UNK65X1081](https://openairdocs.org/ntsb/UNK65X1081.md): Piper PA30 · Chicago, IL · Accident · No injuries · Closed · Dec 21, 1964 · N7495Y · Substantial damage
- [NTSB UNK64X2695](https://openairdocs.org/ntsb/UNK64X2695.md): Piper PA30 · Lansing, IL · Accident · No injuries · Closed · Jul 7, 1964 · N7139Y · Substantial damage

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'IL' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41509'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41509&state=IL

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.