# NTSB ANC18WA023: Sikorsky UH-60M (S-70), Lanyu, Taiwan, February 5, 2018

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Foreign investigation
- Date: February 5, 2018
- Place: Lanyu, Taiwan
- Coordinates: 22.014722, 121.541664 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=22.0147&lon=121.5417&mi=10
- Phase of flight: [Unknown](https://openairdocs.org/ntsb-phases/990) (OpenAirDocs' grouping)
- Defining event: [Unknown: Unknown or undetermined](https://openairdocs.org/ntsb-events/000)
- Highest injury: Fatal
- Injuries: 6 fatal
- Status: Led by another country's authority
- NTSB office: Alaska Regional Office
- Lead agency: Other
- NTSB case key (mKey): 96725
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC18WA023
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/96725/pdf
- Page: https://openairdocs.org/ntsb/ANC18WA023

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Unknown: Unknown or undetermined](https://openairdocs.org/ntsb-events/000) (defining event); cases with it: [All aircraft, 1,703 cases](https://openairdocs.org/ntsb-events/000/sequence.md)

## Factual narrative

The foreign authority was the source of this information. On February 05, 2018, about 2352 local time, a Sikorsky UH-60M helicopter, NA-706, operated by National Airborne Service Corps. of the Ministry of Interior, Taiwan R.O.C., went missing and is presumed to have crashed in open ocean waters shortly after departure from the Lanyu Airport (RCLY), located on Orchid Island, Taitung, Taiwan. Of the six occupants on board, the three crew members and three passengers, remain missing, and the helicopter is presumed to have been destroyed. The investigation is under the jurisdiction of the Government of Taiwan. This report is for information purposes only and contains only information released by or obtained by the Government of Taiwan. Further information pertaining to this accident may be obtained from: Aviation Safety Council, Taiwan 11th Floor, 200, Section 3, Beixin Road, Xindian District New Taipei City 231, Tiawan (R.O.C.) Tel: 886-1-89127388 Fax: 886-2-8912-7399 E-Mail: info@scaa.sy Website: www.asc.gov.tw

## Aircraft

- Registration: NA706 (not matched to a registry record)
- Reported make and model: SIKORSKY UH-60M (S-70)
- Category: Helicopter
- Serial number: 1227294
- Engines: General Electric turbo shaft; General Electric turbo shaft
- Damage: Destroyed
- Flight: Part 129
- Operator: National Airborne Service Corps. Taiwan
- Registered owner: National Airborne Service Corps. Taiwan

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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