# NTSB investigations: Lycoming TVO-435-GIA: Loss of engine power(total) - nonmechanical

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 SEA97LA168](https://openairdocs.org/ntsb/SEA97LA168.md): Bell 47G-3B · Idaho Falls, ID · Accident · Minor injuries · Limited investigation · Final report · Jul 14, 1997 · N8494E · Substantial damage
  > The pilot mismanaged his fuel supply which led to fuel exhaustion and subsequent loss of engine power. Factors contributing to the accident were the lack of adequate altitude and airspeed to successfully execute an autorotation.
- [NTSB LAX97TA213](https://openairdocs.org/ntsb/LAX97TA213.md): Bell 47G-3B-1 · Fallon, NV · Accident · No injuries · Final report · Jun 16, 1997 · N1335X · Substantial damage
  > exhaustion of the aircraft's fuel supply, due to improper planning and/or decision. A factor related to the accident was the high density altitude which made a successful autorotative landing unlikely.
- [NTSB MIA93LA014](https://openairdocs.org/ntsb/MIA93LA014.md): Bell 47-G3-B1 · Palm Beach, FL · Accident · Minor injuries · Limited investigation · Final report · Nov 4, 1992 · N94720 · Substantial damage
  > The pilot's inadequate preflight planning. A factor was the pilot's failure to maintain rotor RPM during the autorotation.
- [NTSB CHI90DER03](https://openairdocs.org/ntsb/CHI90DER03.md): Bell 47G3B1 · Coon Rapids, MN · Accident · No injuries · Final report · Jul 31, 1990 · N4990H · Substantial damage
  > The pilot-in-command's inaccurate fuel consumption calculations and misjudgement of his fuel supply.
- [NTSB DEN88LA135](https://openairdocs.org/ntsb/DEN88LA135.md): Bell 47G · Terry, MT · Accident · Serious injuries · Limited investigation · Final report · Jun 25, 1988 · N2243W · Substantial damage
  > The aircraft was on a ferry flight from alpine, WY. To belfield, ND. The plt departed alpine at approximately 0950 and made several enroute stops to refuel. The plt intended to land at miles city, MT to refuel but he got lost and flew to Terry, MT, located 38…
- [NTSB DEN87LA120](https://openairdocs.org/ntsb/DEN87LA120.md): Bell 47G3B2A · Brigham City, UT · Accident · No injuries · Limited investigation · Final report · May 8, 1987 · N58131 · Substantial damage
  > An ag plt was ferrying a helicopter to another job in his local area. The plt, an ATP, had estimated that the helicopter had enough fuel for the flt. The helicopter's engine quit and an autorotation was performed, resulting in a hard landing. Less than one…
- [NTSB DEN84LA260](https://openairdocs.org/ntsb/DEN84LA260.md): Bell 47G · West Glacier, MT · Accident · No injuries · Limited investigation · Final report · Aug 5, 1984 · N7965J · Substantial damage
  > Following in-flight power loss the pilot performed an autorotation to a forced landing on a highway. On touchdown, the main rotor made contact with a passing motor home. Investigation revealed no fuel on board, although the pilot calculated 0.6 hours of fuel…
- [NTSB DEN83LA154](https://openairdocs.org/ntsb/DEN83LA154.md): Bell 47G-3B-1 Soloy · Townsend, MT · Accident · No injuries · Limited investigation · Final report · Jun 30, 1983 · N1334X · Substantial damage
  > The helicopter made a hard touchdown during an autorotative forced landing after the engine quit. During the landing themain rotor severed the tail boom. The pilot stretched the autorotational glide to reach a hay field and lost main rotor RPM in the process.…

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41526')
    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" = 353))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41526&occurrence=353

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