ASN Wikibase Occurrence # 135046
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| Date: | Sunday 18 December 2005 |
| Time: | 17:00 |
| Type: |  Robinson R22 Beta |
| Owner/operator: | Universal Air Academy |
| Registration: | N177LH |
| MSN: | 1177 |
| Year of manufacture: | 1989 |
| Engine model: | Lycoming O-320 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Irwindale, California -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | El Monte, CA (KELM) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter entered an uncontrolled descent from the takeoff initial climb and collided with the ground. The pilot was practicing landings, climbs, descents, and approaches over an area where he could safely land. He landed the helicopter, then took off, and made a left downwind turn. The pilot said that during the turn he was trying to avoid some trees and had climbed too fast without much forward airspeed when the helicopter started an uncontrolled descent. During the descent he heard the low main rotor rpm horn. He tried to enter an autorotation but he was too close to the ground, and the helicopter impacted the terrain.
Probable Cause: The pilot failed to maintain adequate main rotor rpm.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20060114X00081&key=1
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=177LH
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 29-Sep-2016 17:48 | Dr.John Smith | Updated [Time, Other fatalities, Location, Phase, Departure airport, Source, Narrative] |
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 06-Dec-2017 11:34 | ASN Update Bot | Updated [Departure airport, Source, Narrative] |
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