ASN Wikibase Occurrence # 149295
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Date: | Monday 24 September 2012 |
Time: | 16:00 LT |
Type: | MD Helicopters MD530F (369FF) |
Owner/operator: | Las Vegas Metropolitan Police |
Registration: | N911BL |
MSN: | 0601FF |
Year of manufacture: | 1998 |
Total airframe hrs: | 20200 hours |
Engine model: | Allison 250-C30 |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Location: | North Las Vegas Airport, NV -
United States of America
|
Phase: | Landing |
Nature: | Aerial patrol |
Departure airport: | Las Vegas-North Las Vegas Airport, NV (VGT/KVGT) |
Destination airport: | Las Vegas-North Las Vegas Airport, NV (VGT/KVGT) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The pilot-in-command (PIC), who was giving instruction, was demonstrating a 270-degree autorotation in a gusting west wind at a density altitude of about 5,100 feet. The PIC began the autorotation heading south and turned left; the helicopter experienced a tailwind during the turn. The PIC reported that, because of the tailwind, soon after commencing the autorotation, he increased his bank angle to maintain his ground reference to the intended touchdown point. The pilot receiving instruction stated that, moments later, the helicopter was in a high descent rate, and its airspeed was decreasing. The helicopter impacted terrain in a tail-low attitude. Subsequently, the tailboom separated from the fuselage, the helicopter rolled onto its right side, and the right landing skid folded under the fuselage.
Probable Cause: The pilot’s failure to maintain sufficient airspeed while performing a 270-degree practice autorotation with a gusting tailwind at a high-density altitude.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | WPR12TA436 |
Status: | Investigation completed |
Duration: | 1 year and 8 months |
Download report: | Final report |
|
Sources:
NTSB
Location
Revision history:
Date/time | Contributor | Updates |
26-Sep-2012 06:58 |
gerard57 |
Added |
27-Sep-2012 06:00 |
gerard57 |
Updated [Aircraft type, Registration] |
27-Sep-2012 06:49 |
RobertMB |
Updated [Aircraft type, Cn, Operator, Narrative] |
27-Sep-2012 06:50 |
RobertMB |
Updated [Operator] |
03-Sep-2014 08:46 |
Aerossurance |
Updated [Nature, Source, Narrative] |
04-May-2015 15:34 |
TB |
Updated [Time, Aircraft type, Location, Narrative] |
21-Dec-2016 19:28 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
19-Aug-2017 09:36 |
ASN Update Bot |
Updated [Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
27-May-2018 09:28 |
Aerossurance |
Updated [Time, Operator, Other fatalities, Location, Nature] |
31-May-2023 05:07 |
Ron Averes |
Updated [[Time, Operator, Other fatalities, Location, Nature]] |
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