ASN Wikibase Occurrence # 80740
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| Date: | Thursday 28 August 2003 |
| Time: | 17:00 |
| Type: |  Pilatus PC-6/C-H2 Turbo Porter |
| Owner/operator: | Private |
| Registration: | N394R |
| MSN: | 599 |
| Year of manufacture: | 1966 |
| Total airframe hrs: | 15120 hours |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Claude, TX -
 United States of America
|
| Phase: | Unknown |
| Nature: | Private |
| Departure airport: | Decatur, TX (76T) |
| Dalhart, TX (DHT) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During cruise flight, the 33,000-hour pilot stated that the airplane encountered "extreme clear air turbulence followed by three jolts in rapid succession." He "heard a loud pop as he jerked the throttle to the flight idle position." As the airspeed was slowing, the pilot attempted to add power. The "throttle would not move from the flight idle position and the propeller went into BETA." The airplane pitched downward as the pilot continued to try and "push the throttle lever forward." The airplane established "a rate of descent in excess of 10,000 feet per minute at a near vertical attitude." The pilot initiated an evacuation of the airplane and deployed his parachute (the pilot was wearing a sport parachute during the flight). Subsequently, the airplane impacted terrain. During a post accident examination, no mechanical anomalies were noted on the airframe, propeller, or engine that could have caused the accident. The reason for the loss of propeller pitch control could not be determined.
Probable Cause: The loss of propeller pitch control for undetermined reasons.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20030903X01437&key=1
History of this aircraft
Other occurrences involving this aircraft
| 18 December 1968 | N394R | Air America | 1 | Can Tho (V-17) |  |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 13-Nov-2010 16:17 | TB | Added |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 08-Dec-2017 19:11 | ASN Update Bot | Updated [Operator, Nature, Departure airport, Destination airport, Source, Narrative] |
Corrections or additions? ... Edit this accident description
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