# Accident 20200420022249A: Sikorsky S-61N, Camp Dwyer, April 20, 2020

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: April 20, 2020, 08:00 local time
- Place: Camp Dwyer
- Airport: Camp Dwyer
- Damage: Substantial damage
- Phase of flight: Landing: Approach
- Operating rules: Air taxi and commuter (Part 135)
- Operator: H9XA
- Location: 30.1156° N, 64.0714° E: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=30.1156&lon=64.0714&mi=10
- Aircraft: N908CH, a cancelled registration (https://openairdocs.org/deregistered/N908CH-2022-08-04) (OpenAirDocs)
- Registry model: Sikorsky S-61N (registry code 8142104, https://openairdocs.org/model/sikorsky-s-61n) (OpenAirDocs)
- Registry engine: GE CT58-140-2 (registry code 30129, https://openairdocs.org/engine/ge-ct58-140-2) (OpenAirDocs)
- Reported make and model: SIKORSKY S-61N
- Reported engine: GE CT58-140-2
- People aboard: 3
- Fatal injuries: 0
- Other injuries: 3
- Pilot certificates: Commercial pilot, flight instructor, private pilot
- Pilot flight hours: 58 in the last 90 days
- NTSB investigation: [NTSB DCA20LA100](https://openairdocs.org/ntsb/DCA20LA100) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20200420022249A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON 20 APRIL, 2020, AT APPROXIMATELY 0800 LOCAL TIME, A SIKORSKY S-61N, N908CH, EXPERIENCED A LOSS OF CONTROL IN FLIGHT AND ROLLED ON ITS SIDE DURING AN EMERGENCY LANDING ^PRIVACY DATA OMITTED^. THE THREE CREW MEMBERS ONBOARD WERE SERIOUSLY INJURED AND THE HELICOPTER SUSTAINED SUBSTANTIAL DAMAGE. THE FLIGHT WAS OPERATING UNDER THE PROVISIONS OF 14 CFR PART 135 AS A CARGO FLIGHT UNDER CONTRACT^PRIVACY DATA OMITTED^. IN ACCORDANCE WITH ICAO ANNEX 13, THE NTSB ACCEPTED DELEGATION OF THE INVESTIGATION FROM THE AFGHANISTAN CIVIL AVIATION AUTHORITY.

## The NTSB's investigation of this event (1)

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.

- [NTSB DCA20LA100](https://openairdocs.org/ntsb/DCA20LA100), Apr 20, 2020: Sikorsky S61 (N908CH), Camp Dwyer, Afghanistan, substantial damage. Probable cause: 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…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.