ASN Wikibase Occurrence # 134689
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Wednesday 18 April 2001 |
| Time: | 14:30 |
| Type: |  Hughes 500D (369D) |
| Owner/operator: | Aerial Solutions, Inc. |
| Registration: | N713HT |
| MSN: | 370096D |
| Year of manufacture: | 1977 |
| Total airframe hrs: | 9427 hours |
| Engine model: | Allison 250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Du Quoin, IL -
 United States of America
|
| Phase: | Unknown |
| Nature: | Unknown |
| Departure airport: | DU QUOIN, IL |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot said that he was using an aerial saw to side trim trees along a powerline right-of-way. The pilot said, "At the end of the tree line at approximately 150' (feet) agl (above ground level) I applied power to climb, immediately the low rotor rpm horn sounded. I tried to increase N2/Nr (engine and rotor rpm) with the governor 'beep switch' and checked N2/Nr. There was no response from trying to increase N2/Nr and N2/Nr was in the low 90's. I lowered the collective, released the saw and radioed my ground crew that the engine had stopped. At this point I had low airspeed, low N2/Nr and approximately 100' agl. I aimed the aircraft at an open field and tried to gain airspeed to attempt a running landing." The pilot said the helicopter "impacted the field in a near horizontal attitude." An examination of the helicopter at the accident site showed the helicopter resting on its left side in a corn stubble field approximately 300 feet south of east-west running power lines, and approximately 730 feet from a clearway of trees where the helicopter was cutting prior to the accident. An examination of the helicopter revealed no anomalies.
Probable Cause: loss of engine power for undetermined reasons, the pilot operating the helicopter outside of the height-velocity curve, and the pilot's failure to maintain control of the helicopter during the emergency landing. Factors relating to the accident were the pilot's attempted run-on landing and his improper in-flight decision to not land immediately after experiencing the engine problem.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20010426X00816&key=1
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Dec-2017 11:16 | ASN Update Bot | Updated [Other fatalities, Nature, Departure airport, Source, Narrative] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation