NTSB investigations: Lycoming IO-320 series, WA
17 cases on aircraft whose registry engine model is Lycoming IO-320 series. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 1964 | 1 |
|---|---|
| 1966 | 1 |
| 1974 | 1 |
| 1976 | 1 |
| 1978 | 1 |
| 1980 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1990 | 1 |
| 1996 | 1 |
| 1998 | 1 |
| 2007 | 1 |
| 2009 | 2 |
| 2014 | 1 |
| 2020 | 1 |
| 2026 | 1 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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\" = 'WA' 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"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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" = 'WA' 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" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB WPR26LA163Accident · Minor injuriesClass 3 · LimitedPreliminary reportPiper PA30 · Auburn, WAOn April 18, 2026, about 1330 Pacific daylight time, a Piper PA-30 Twin Comanche, N741TJ, was substantially damaged when it was involved in an accident near Auburn, Washington. The pilot and pilot-rated passenger sustained minor injuries. The airplane was…NTSB WPR20LA180Accident · Minor injuriesClass 3 · LimitedFinal reportBellanca 7KCAB · Renton, WAMaintenance personnel’s inadequate post-maintenance inspections that resulted in the total loss of engine power due to a blockage in the air intake.NTSB WPR14LA298Accident · No injuriesLimited investigationFinal reportPiper PA 30 · Othello, WAThe partial loss of engine power for reasons that could not be determined based on the available information.NTSB WPR09LA372Accident · No injuriesLimited investigationFinal reportPiper PA-30 · Walla Walla, WAA tripped landing gear motor circuit breaker, which prevented the gear from fully locking in the down position, and subsequent collapse during landing. Contributing to the accident was the disabled landing gear warning horn.NTSB WPR09CA342Accident · No injuriesData collectionFinal reportMid-South Custom Craft SH-2R · Sequim, WAThe total loss of engine power due to fuel starvation as a result of the pilot's failure to reposition the fuel selector to the main tank. Contributing to the accident was the pilot's failure to properly complete the pre-takeoff checklist.NTSB SEA07LA059Accident · Minor injuriesLimited investigationFinal reportBarnhart RV-6 · Auburn, WAA loss of engine power due to the obstruction of the engine's air inlet by a fabricated neoprene seal, and inadequate maintenance by unknown maintenance personnel. A contributing factor was the lack of suitable terrain for a forced landing.NTSB SEA98LA085Accident · 1 fatalLimited investigationFinal reportPiper PA-30 · Everett, WAThe pilot-in-command's exiting the aircraft with both engines running to remove a wheel chock. A factor was the inadequate preflight of the aircraft (not removing the chock) prior to engine start.NTSB SEA96FA133Accident · 1 fatalField investigationFinal reportBellanca 8KCAB · Pomeroy, WAThe pilot's failure to maintain adequate clearance with the surrounding terrain while maneuvering to land. A factor was the rising terrain conditions.NTSB SEA90LA075Accident · No injuriesLimited investigationFinal reportBellanca 8KCAB · Pomeroy, WAA malfunctioning fuel injection system and the pilot's attempted operation above certificated maximum gross weight with a known deficiency in this equipment.NTSB SEA88LA068Accident · Serious injuriesLimited investigationFinal reportBellanca 7KCAB · Palmer, WAWhile on a VFR cross country flight the pilot encountered instrument meteorological conditions along his route. The aircraft was not instrument equipped, even though the pilot is instrument rated. The pilot had to make two precautionary landings prior to the…NTSB SEA87LA046Accident · No injuriesLimited investigationFinal reportBellanca 7KCAB · Bremerton, WAPlt with less than 2 hrs as PIC in Bellanca 7KCAB acft stalled on approach to runway. Plt reported winds estimated at 10 KTS with gusts to 15 KTS. Acft stalled about 30 feet above runway and impacted on the nose at about 30 degree angle.NTSB SEA81FYE02Accident · Serious injuriesClosedChampion 8KCAB · Lester, WANTSB SEA78DYP18Accident · No injuriesClosedPiper PA-30 · Tekoa, WANTSB SEA76FYE28Accident · Serious injuriesClosedChampion 7KCAB · Copalis, WANTSB SEA75FYG02Accident · Minor injuriesClosedBellanca 8KCAB · Deer Park, WANTSB SEA66F0299Accident · No injuriesClosedPiper PA-30 · Pasco, WANTSB UNK65X0348Accident · No injuriesClosedPiper PA30 · Everett, WA