NTSB investigations: Lycoming GO-480 series, AK
31 cases on aircraft whose registry engine model is Lycoming GO-480 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
| 1966 | 1 |
|---|---|
| 1969 | 1 |
| 1973 | 1 |
| 1974 | 1 |
| 1978 | 1 |
| 1982 | 1 |
| 1983 | 2 |
| 1988 | 1 |
| 1990 | 1 |
| 1991 | 1 |
| 1994 | 1 |
| 1996 | 1 |
| 1997 | 2 |
| 1999 | 1 |
| 2002 | 2 |
| 2005 | 1 |
| 2009 | 2 |
| 2012 | 1 |
| 2014 | 2 |
| 2015 | 2 |
| 2016 | 2 |
| 2020 | 1 |
| 2023 | 1 |
| 2025 | 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\" = 'AK' 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 ('41527'))
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" = 'AK' 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 ('41527'))
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 ANC25LA095Accident · No injuriesClass 4 · LimitedFinal reportHelio H-395 · Pilot Point, AKThe pilot's inadequate takeoff performance planning, which resulted in a runway excursion and collision with terrain.NTSB ANC23LA082Accident · No injuriesClass 4 · LimitedFinal reportHelio H-295 · Fairbanks, AKThe pilot’s encounter with windshear during initial climb out, which resulted in a loss of control.NTSB ANC20CA092Accident · No injuriesClass 4 · Data collectionFinal reportHelio H 295 · Fairbanks, AKThe pilot’s decision to initiate a right turn immediately after departure and his failure to maintain a proper crosswind correction, which resulted in a collision with terrain.NTSB ANC16LA071Accident · No injuriesLimited investigationFinal reportHelio H-295 · Delta Junction, AKThe pilot’s decision to take off from a wet, snowy airstrip and his delayed decision to abort the takeoff, which resulted in a runway excursion.NTSB ANC16LA067Accident · No injuriesLimited investigationFinal reportHelio H 295 · Fairbanks, AKExcessive side loads imposed on the tailwheel A-frame during the takeoff roll, which resulted in a separation of the tailwheel and the subsequent loss of directional control.NTSB GAA15CA268Accident · No injuriesData collectionFinal reportHelio H 395 · Bethel, AKThe pilot's failure to maintain a positive climb rate during takeoff initial climb, resulting in an uncontrolled descent and collision with trees and terrain.NTSB ANC15LA070Accident · No injuriesLimited investigationFinal reportHelio H 295 · Delta Junction, AKA partial loss of engine power during takeoff for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.NTSB ANC15LA004Accident · No injuriesLimited investigationFinal reportHelio H 295 · Nenana, AKThe partial loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no evidence of any preimpact mechanical anomalies.NTSB ANC14CA082Accident · Minor injuriesData collectionFinal reportHelio H 295 · Prospect Creek, AKThe pilot's loss of directional control during takeoff, in gusty and variable wind conditions, resulting in a collision with terrain.NTSB ANC12CA020Accident · No injuriesData collectionFinal reportHelio H-295 · Old Minto, AKThe pilot's decision to land on unsuitable terrain, which resulted in the airplane nosing over.NTSB ANC09CA091Accident · No injuriesData collectionFinal reportHelio H-295 · Koliganek, AKA loss of engine power during cruise flight due to water in the fuel, and the pilot's inadequate preflight inspection.NTSB ANC09LA023Accident · No injuriesLimited investigationFinal reportHelio H-295 · Healy, AKThe pilot's delay in initiating a climb while he was packing snow with the airplane's skis in preparation for landing, resulting in a collision with brush.NTSB ANC05LA045Accident · No injuriesLimited investigationFinal reportHelio H-295 · Fairbanks, AKThe pilot's delay in performing a go-around, and his failure to maintain obstacle clearance.NTSB ANC02LA101Accident · No injuriesLimited investigationFinal reportHelio H-295 · Igiugig, AKThe pilot's inadequate evaluation of the wind/weather conditions resulting in a collision with an embankment during the takeoff run. A factor contributing to the accident was a sudden wind shift to a tailwind.NTSB ANC02LA089Accident · No injuriesLimited investigationFinal reportHelio H-295 · Fort Yukon, AKThe failure of the axle shaft, which resulted in the separation of the right main tire/wheel from the airplane on landing.NTSB ANC99LA095Accident · No injuriesLimited investigationFinal reportHelio H-395 · Igiugig, AKThe pilot's inadequate compensation for wind conditions during the downwind to upwind taxi turn. Factors associated with this accident were the high crosswind, the pilot's improper use of flaps, and his self-induced pressure because he was behind schedule.NTSB ANC97LA128Accident · No injuriesLimited investigationFinal reportHelio H-295 · Fort Yukon, AKfailure of the pilot to maintain directional control of the airplane, which resulted in a swerve and collision with a tree as the pilot continued the takeoff, subsequently jamming the stabilator and causing the plane to crash in water.NTSB ANC97LA094Accident · No injuriesLimited investigationFinal reportHelio H295 · Ekwok, AKThe pilot's selection of an unsuitable area for takeoff.NTSB ANC96IA039Incident · No injuriesIncident investigationFinal reportHelio H295 · Angoon, AKthe pilot's inadequate compensation for the gusty wind conditions. A factor associated with the accident was the gusty wind conditions.NTSB ANC94LA123Accident · No injuriesLimited investigationFinal reportHelio H295 · Artic Village, AKThe pilot selected unsuitable terrain for landing. A factor was the hidden obstruction (hole).NTSB ANC91LA093Accident · Minor injuriesLimited investigationFinal reportHelio H-295 · Port Alsworth, AKFailure of the pilot to maintain sufficient altitude and clearance from mountainous terrain. Factors related to the accident were: the rising terrain and a downdraft.NTSB ANC90LA138Accident · No injuriesLimited investigationFinal reportHelio HE-3/H-295 · Arctic Village, AKThe pilot in commands improper flare during a forced landing resulting in a hard landing.NTSB ANC88LA122Accident · No injuriesLimited investigationFinal reportHelio H-295 · Anchorage, AKDuring the takeoff roll on the runway at approximately 20 to 25 mph the pilot lost directional control of the airplane. The airplane looped to the right.NTSB ANC83LA136Accident · No injuriesLimited investigationFinal reportHelio H-295 · Fairbanks, AKThe plt reported that during the landing roll, the left brake failed & the acft ran off the right side of the rwy. Reportedly, the acft was damaged when it went off the gravel rwy at or near the departure end. No malfunction or failure of the brake assembly…NTSB ANC83FA126Accident · 1 fatalField investigationFinal reportHelio H395 · Fairbanks, AKTakeoff was from a dirt driveway which had a usable length 0F 330 ft before it curved north. Before takeoff, the plt hadbent several small trees back away from the driveway & tied them down so they would not interfere with the takeoff. There are numerous…NTSB ANC82DAG24Accident · No injuriesFinal reportHelio H-395 · Gulkana, AKThe pilot departed fairbanks, Alaska in his wheel equipped Helio H-395 and proceeded on a flight to Gulkana, Alaska. While en route, he elected to land on an island near the junction of the susitna and oshetina rivers. During the landing, the gear fell…NTSB ANC78DA020Accident · Serious injuriesClosedGrumman G-44 · Pilot Point, AKNTSB ANC75FAA18Accident · No injuriesClosedHelio Acft H295 · Tanacross, AKNTSB ANC74AA031Accident · No injuriesClosedGrumman G-44S · Farewell, AKNTSB ANC70A0005Accident · 2 fatalClosedGrumman G-44A · Barrow, AKNTSB ANC67D0070Accident · No injuriesClosedGrumman G-44 · Iliamna, AK