ASN Wikibase Occurrence # 291459
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Date: | Saturday 26 March 2016 |
Time: | 15:30 LT |
Type: | Hughes 369 |
Owner/operator: | Haverfield Aviation |
Registration: | N721RP |
MSN: | 310981D |
Year of manufacture: | 1981 |
Total airframe hrs: | 18500 hours |
Engine model: | Rolls-Royce 250-C20B |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Jamestown, North Dakota -
United States of America
|
Phase: | Landing |
Nature: | Ferry/positioning |
Departure airport: | Jamestown Airport, ND (JMS/KJMS) |
Destination airport: | Jamestown Airport, ND (JMS/KJMS) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The pilot reported that he was performing a practice autorotation with a power recovery, and was the sole occupant in the helicopter. He reported that the power was introduced at 200 feet above ground level (AGL) and he entered the flare at too low of an altitude. The tail rotor system impacted the soft ground adjacent to the planned landing area. The helicopter sustained substantial damage to the tailboom, the tail rotor driveshaft assembly, and the tail rotor system.
The pilot verified that there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.
The Federal Aviation Administration has published Advisory Circular (AC) 61-140 Autorotation Training (2013). This AC discusses the flare portion for autorotation training and states in part:
Every autorotational flare will be different depending on the existing wind conditions, airspeed, density altitude, and the aircraft gross weight.
This AC also discusses common errors during autorotation training and states in part:
Improper flare (too much or not enough).
Flaring too low or too high (AGL).
Probable Cause: The pilot's excessive descent rate while flaring during a practice autorotation with a power recovery, which resulted in an impact with terrain.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | GAA16CA168 |
Status: | Investigation completed |
Duration: | 2 months |
Download report: | Final report |
|
Sources:
NTSB GAA16CA168
Location
Revision history:
Date/time | Contributor | Updates |
07-Oct-2022 14:07 |
ASN Update Bot |
Added |
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