ASN Wikibase Occurrence # 217138
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: | Friday 2 November 2018 |
| Time: | 11:51 |
| Type: |  Bushby Mustang II |
| Owner/operator: | Private |
| Registration: | N287BM |
| MSN: | 287 |
| Year of manufacture: | 2003 |
| Total airframe hrs: | 874 hours |
| Engine model: | Lycoming O3-20-E2A |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Anthem Ranch, Broomfield, CO -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | Erie, CO (EIK) |
| Erie, CO (EIK) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The private pilot and his passenger were returning from a local flight. According to GPS data, the airplane overflew the airport and entered a midfield right downwind leg for the landing runway before turning to the base leg. Multiple witnesses observed the airplane fly at a high speed and a low altitude before it banked sharply, descended toward the ground, and impacted terrain.
The damage to the airplane was consistent with the airplane impacting the ground in a nose-low, wings-level attitude. Postaccident examination of the airframe and engine revealed no mechanical anomalies that would have precluded normal operations.
Two AIRMETs that were valid for the accident location and time warned of moderate turbulence and low-level wind shear conditions. Various weather products, including computer model simulations and satellite images, depicted conditions consistent with moderate-to-severe turbulence that were conducive for mountain wave activity near the airport. In addition, multiple pilot reports in the area indicated moderate-to-severe turbulence. The observed wind speeds at the airport directly before and after the accident time were weaker than what was encountered by the accident flight due to the inversion likely staying in place longer at the airport. A weather simulation indicated that the accident airplane was in an area of downdrafts with magnitudes between 200 and 1,000 fpm and updrafts with magnitudes between 300 and 1,500 fpm. The airplane was in an area with horizontal wind magnitudes between 20 and 30 knots.
No evidence indicated that the pilot obtained a weather briefing for the intended route of flight; however, even if the pilot had obtained a weather briefing, no weather products at the time of the accident would have specifically mentioned the potential for mountain wave activity.
The accident flight likely encountered mountain wave and rotor conditions while on final approach to the airport with wind gusting between 30 to 50 knots and updrafts and downdrafts with magnitudes between 500 and 1,500 ft per minute. The pilot was most likely not able to maintain airplane control due to this encounter.
Probable Cause: The pilot's inability to maintain airplane control following an encounter with mountain wave turbulence.
Accident investigation:
 |
|
Sources:
NTSB
History of this aircraft
Other occurrences involving this aircraft
| 2 October 2011 | N287BM | Private | 0 | Brush Municipal Airport - K7V5, CO | |
sub |
| Runway excursion | ||||||
Location
Media:
href="https://t.co/TH5zPjXq5n">pic.twitter.com/TH5zPjXq5n— Denver7 News (@DenverChannel) 2 novembre 2018Two people are dead after a small plane crashed in the Anthem Ranch area of Broomfield.
Developing details: https://t.co/nu6WlMUHQiNTSB investigating crash Friday of an Amateur-built Mustang II in Broomfield, CO.
— NTSB_Newsroom (@NTSB_Newsroom) 2 novembre 2018
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 02-Nov-2018 19:17 | gerard57 | Added |
| 02-Nov-2018 19:30 | Captain Adam | Updated [Time, Location, Phase, Source, Narrative] |
| 02-Nov-2018 20:04 | harro | Updated [Aircraft type] |
| 02-Nov-2018 20:04 | harro | Updated [Aircraft type, Source] |
| 02-Nov-2018 20:39 | Iceman 29 | Updated [Embed code] |
| 02-Nov-2018 21:14 | Geno | Updated [Time, Source, Embed code, Narrative] |
| 04-Nov-2018 16:22 | Anon. | Updated [Narrative] |
| 05-Nov-2018 19:32 | Captain Adam | Updated [Registration, Cn, Source] |
| 17-Nov-2018 01:11 | Geno | Updated [Time, Phase, Departure airport, Destination airport, Narrative] |
| 28-Nov-2018 08:48 | L1011TriStar | Updated [Narrative] |
| 09-Mar-2019 13:43 | Anon. | Updated [Departure airport, Destination airport] |
| 22-May-2020 09:24 | ASN Update Bot | Updated [Time, Departure airport, Destination airport, Source, Embed code, Damage, Narrative, Accident report, ] |
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