# Accident 20070521007829A: Amtr ROTORWAY162F, Argyle, NY, May 21, 2007

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: May 21, 2007, 18:02 local time
- Place: Argyle, NY
- Damage: Substantial damage
- Phase of flight: Pwr Off Vert Land/Autorotate
- Operating rules: General operating rules (Part 91)
- Location: 43.2525° N, 73.4692° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=43.2525&lon=-73.4692&mi=10
- Aircraft: N636PB, a cancelled registration (https://openairdocs.org/deregistered/N636PB-2008-04-01) (OpenAirDocs)
- Registry model: Bretton Paul ROTORWAY INTL 162F (registry code 05617K9, https://openairdocs.org/model/bretton-paul-rotorway-intl-162f) (OpenAirDocs)
- Registry engine: Amateur-built UNKNOWN ENG (registry code 99999, https://openairdocs.org/engine/amateur-built-unknown-eng) (OpenAirDocs)
- Reported make and model: AMTR ROTORWAY162F
- Reported engine: AMTRRW RI162F
- People aboard: 2
- Fatal injuries: 0
- Pilot flight hours: 18,700 total, 15 in this make and model, 0 in the last 90 days
- NTSB investigation: [NTSB ATL07CA084](https://openairdocs.org/ntsb/ATL07CA084) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20070521007829A

## Narrative

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

(-23) THE AIRCRAFT N636PB, A RW162F HELICOPTER WAS BEING OPERATED ON AN INSTRUCTIONAL FLIGHT. AT APPROXIMATELY 0.6 HOURS INTO THE FLIGHT THE AIRCRAFT LOST POWER DUE TO FAILURE OF AN EXHAUST VALVE ROCKER ARM AND ATTENDENT RETAINER SPRING. THE AIRCRAFT WAS AT APPROXIMATELY 1500 FEET AT THE TIME OF THE POWER-PLANT FAILURE. THE PILOT INITIATED AN AUTOROTATION TO AN OPEN FIELD. THE AUTOROTATION TERMINATED IN A NOSE LOW, HARD LANDING. THE HELICOPTER SUBSEQUENTLY ROLLED ONTO ITS LEFT SIDE. DAMAGE TO THE AIRCRAFT WAS SUBSTANTIAL.

## 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 ATL07CA084](https://openairdocs.org/ntsb/ATL07CA084), May 21, 2007: Rotorway Rotorway Intl 162F (N636PB), Argyle, NY, substantial damage. Probable cause: The loss of engine power due to the sticking of the exhaust valves that resulted from carbon buildup.

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.