# NTSB investigations: Sikorsky S-61N

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 GAA25WA145](https://openairdocs.org/ntsb/GAA25WA145.md): Sikorsky S-61N · Sédjè, Benin · Accident · Minor injuries · Class 5 · Foreign · Jan 10, 2025 · N703HG · Substantial damage
- [NTSB WPR22LA330](https://openairdocs.org/ntsb/WPR22LA330.md): Sikorsky S-61N · Shady Cove, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 1, 2022 · N617CK · Substantial damage
  > A total loss of engine power due to the failure of the No. 2 engine’s stage 1 turbine blades as a result of an unreported hot start two days earlier.
- [NTSB ANC22FA018](https://openairdocs.org/ntsb/ANC22FA018.md): Sikorsky S-61N · Kekaha, HI · Accident · 4 fatal · Class 3 · Field · Final report · Feb 22, 2022 · N615CK · Destroyed
  > The improper installation of the fore/aft primary servo by maintenance personnel, which resulted in the attaching hardware backing out and which subsequently rendered the helicopter uncontrollable. Contributing to the accident was the company’s quality…
- [NTSB DCA20LA100](https://openairdocs.org/ntsb/DCA20LA100.md): Sikorsky S61 · Camp Dwyer, Afghanistan · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 20, 2020 · N908CH · Substantial damage
  > Fatigue cracking of the auxiliary servo cylinder’s pedal damper check valve housing and its bolts, which caused the sudden and uncommanded movement of the helicopter’s left pedal and a subsequent left yaw that continued until ground impact. Contributing to…
- [NTSB ERA16FA311](https://openairdocs.org/ntsb/ERA16FA311.md): Sikorsky S61 · Palm Bay, FL · Accident · 3 fatal · Field investigation · Final report · Sep 6, 2016 · N805AR · Destroyed
  > A dual loss of engine power for undetermined reasons after the pilot's improper decision to attempt another maneuver after recovering from a perceived compressor stall, rather than returning to the airport.
- [NTSB LAX08PA259](https://openairdocs.org/ntsb/LAX08PA259.md): Sikorsky S-61N · Weaverville, CA · Accident · 9 fatal · Class 1 · Final report · Aug 6, 2008 · N612AZ · Destroyed
  > The following actions by Carson Helicopters: 1) the intentional understatement of the helicopter's empty weight, 2) the alteration of the power available chart to exaggerate the helicopter's lift capability, and 3) the practice of using unapproved…
- [NTSB NYC08WA256](https://openairdocs.org/ntsb/NYC08WA256.md): Sikorsky S-61N · Cusco, Peru · Accident · No injuries · Foreign investigation · Jul 19, 2008 · N91158 · Substantial damage
- [NTSB SEA76FYA05](https://openairdocs.org/ntsb/SEA76FYA05.md): Sikorsky S-61L · Garden Valley, ID · Accident · Minor injuries · Closed · Jul 22, 1975 · N301Y · Substantial damage
- [NTSB OAK73IP020](https://openairdocs.org/ntsb/OAK73IP020.md): Sikorsky S-61N · Oakland, CA · Incident · No injuries · Closed · Nov 17, 1973 · N4606G · Minor damage
- [NTSB OAK67A0043](https://openairdocs.org/ntsb/OAK67A0043.md): Sikorsky S-61N · Mountain View, CA · Accident · No injuries · Closed · Oct 11, 1966 · N4606G · Substantial damage
- [NTSB OAK66A0054](https://openairdocs.org/ntsb/OAK66A0054.md): Sikorsky S-61N · San Francisco, CA · Accident · No injuries · Closed · Jun 6, 1966 · N4606G · 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('8142104'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=8142104

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