NTSB investigations: Lycoming 0-320 series, WA

18 cases on aircraft whose registry engine model is Lycoming 0-320 series, where the first occurrence was “Loss of engine power”. 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

19852026
NTSB investigations: Lycoming 0-320 series, WA per year, 1985–2026: 18 cases
19852
19911
19931
19951
19961
19981
19991
20012
20021
20031
20044
20062

Latest 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 ('41508')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 350))
  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.

NTSB SEA07LA038Accident · No injuriesLimited investigationFinal reportPiper PA-22-150 · Blaine, WAThe loss of engine power for undetermined reasons. Factors were the unsuitable rough/uneven terrain.Dec 22, 2006 · N7124D · Substantial damageNTSB SEA06LA049Accident · No injuriesLimited investigationFinal reportCessna 172N · Snohomish, WACarburetor heat was not used during the initial climb in probable serious carburetor icing conditions during cruise power. Carburetor icing conditions and wet terrain were factors.Jan 31, 2006 · N492SF · Substantial damageNTSB SEA04LA161Accident · Minor injuriesLimited investigationFinal reportPiper PA-28-140 · Irby, WALoss of engine power for unknown reasons. Trees and rough/uneven terrain were factors.Aug 14, 2004 · N4195J · Substantial damageNTSB SEA04LA157Accident · Serious injuriesLimited investigationFinal reportHeadrick Vans RV9A · Westport, WAFuel starvation as a result of the pilot's improper fuel management. Carburetor icing conditions and trees were a factor.Aug 7, 2004 · N3086J · Substantial damageNTSB SEA04LA137Accident · Serious injuriesLimited investigationFinal reportRoot RV-4 · Buckley, WAThe pilot's inadequate preflight planning/preparation which resulted in a loss of engine power due to fuel starvation during the initial climb after takeoff. The pilot's failure to select the proper fuel tank before takeoff and to maintain airspeed during the…Jul 19, 2004 · N901ER · Substantial damageNTSB SEA04LA078Accident · No injuriesLimited investigationFinal reportRobinson R-22 Mariner · Chehalis, WAA loss of engine power for undetermined reasons.May 6, 2004 · N6291T · Substantial damageNTSB SEA03LA052Accident · No injuriesLimited investigationFinal reportRobinson R-22B · Mabton, WAA partial loss of power, for undetermined reasons, during a shallow approach, that ultimately lead to a situation where the pilot found it necessary to attempt a forced landing while the helicopter was moving slightly sideways. Factors include rough/uneven…Mar 30, 2003 · N2629Z · Substantial damageNTSB SEA02LA163Accident · Minor injuriesLimited investigationFinal reportPiper PA-14 · Eastsound, WALoss of engine power for undetermined reasons.Aug 24, 2002 · N5170H · Substantial damageNTSB SEA02LA013Accident · No injuriesLimited investigationFinal reportPiper PA-18-150 · Brewster, WAThe magneto was inadvertently switched off by the pilot during the climb. A tree was a factor.Nov 13, 2001 · N5762A · Substantial damageNTSB SEA01LA158Accident · 1 fatalLimited investigationFinal reportMatey Hawker Hurricane · Buckley, WAA loss of power for undetermined reasons, and the pilot's inflight decision to attempt a 180 degree turn back to the runway from low altitude and his failure to maintain sufficient flying airspeed during the turn. A contributing factor was drug impairment of…Aug 27, 2001 · N3941Q · Substantial damageNTSB SEA99LA101Accident · Serious injuriesLimited investigationFinal reportCessna 172P · Auburn, WATotal mechanical failure of the hydraulic tappet. A factor was an overdue major overhaul per manufacturer's recommendations.Jul 3, 1999 · N531PC · Substantial damageNTSB SEA98LA133Accident · No injuriesLimited investigationFinal reportBeech 23 · Oakville, WALoss of power due to the failure of an exhaust valve, and overloading of the landing gear. Factors include the failure of maintenance personnel to verify proper compliance with an Airworthiness Directive related to the exhaust valve, and soft terrain.Jul 13, 1998 · N8719M · Substantial damageNTSB SEA96LA183Accident · Minor injuriesLimited investigationFinal reportCessna 172N · Enumclaw, WAfailure of the engine magneto drive, which resulted in a loss of engine power. The lack of suitable terrain for a forced landing was a related factor.Aug 9, 1996 · N738PM · Substantial damageNTSB SEA95LA061Accident · Minor injuriesLimited investigationFinal reportPiper PA-22-150 · Forks, WAThe loss of power for undetermined reasons and the lack of suitable terrain for a successful forced landing.Mar 5, 1995 · N4778A · Substantial damageNTSB SEA93LA103Accident · No injuriesLimited investigationFinal reportCessna 172M · Kapowsin, WAAn undetermined loss of engine power.May 8, 1993 · N9534H · Substantial damageNTSB SEA91LA243Accident · No injuriesLimited investigationFinal reportDonald W. Sorrels Vans RV-6 · Kennewick, WAThe loss of power due to the pilot/builder's improper adjustment of the engine idle speed. A factor relating to the accident was the soft terrain at the accident site.Sep 18, 1991 · N391DS · Substantial damageNTSB SEA85FA086Accident · 1 fatalField investigationFinal reportPiper PA-18-150 · Sunnyside, WAThe acft crashed after colliding with electrical power lines near an open field. Initial impact with the power lines occurred where the wires were routed over a draw between 2 ridges. The acft came to rest inverted between the power lines & the open field.…Apr 7, 1985 · N4379Z · DestroyedNTSB SEA85FA043Accident · 1 fatalField investigationFinal reportPiper PA-28-140D · Kent, WAThe acft contacted trees and the terrain aprx 1/2 mile south of the arpt shortly after takeoff. Witnesses stated the eng was running rough and black smoke was trailing from the exhaust during the takeoff. Examination of the eng revealed the spark plugs were…Jan 14, 1985 · N679FL · Destroyed