Federal Aviation Administration NTSB Report
Date: 18 MAR 2006
Time: ca 14:48
Type: Beechcraft C.99
Operator: Ameriflight
Registration: N54RP
C/n / msn: U-218
First flight: 1983
Engines: 2 Pratt & Whitney Canada PT6A-36
Crew: Fatalities: 2 / Occupants: 2
Passengers: Fatalities: 0 / Occupants: 0
Total: Fatalities: 2 / Occupants: 2
Airplane damage: Written off
Location: 13 km (8.1 mls) SW of Butte, MT (USA)
Phase: En route
Nature: Cargo
Departure airport: Helena Airport, MT (HLN/KHLN), USA
Destination airport: Butte (Bert Mooney) Airport, MT (BTM/KBTM), USA
Flight Number: 2591
Narrative:
The Beech 99 departed Helena (HLN) at 14:35 on flight to Butte (Bert
Mooney, BTM) and was carrying only about 10 pounds of freight. The
aircraft was cleared for the VOR B approach to Butte at 14:48. Butte
controllers noted that a weather front that included icing conditions
and heavy snow had been approaching the area from the south to the
north/northeast even though a UNICOM-based Digiwx AWOS reported clear
skies with good visibility and gentle winds in the mountains. During the
descent, the airplane collided with trees and subsequently the terrain.
Search crews found the wreckage of the plane on March 20. Upon
investigation, one of the cockpit radio was found to be tuned to 123.0
MHz which is the airport's CTAF/UNICOM.
Preliminary results strongly suggest that the Beechcraft pilot received
incorrect and faulty data from a Digiwx AWOS weather reporting station
on the field at Butte (BTM) airport. FAA and NTSB continue to probe the
weather data being disseminated from this Belfort Instruments Digiwx
AWOS which had never been formally FAA commissioned. Cary Gates from the
Northwest Mountain Region of the FAA in Helena, MT notes that the
barometer setting is the only FAA Approved weather sensor on the Digiwx
AWOS weather station; all remaining weather sensors on the Digiwx AWOS
(wind direction, wind speed, temperature, dewpoint, relative humidity,
visibility, ceilometer, density altitude, condensation altitude) are all
"advisory." According to the FAA, "Advisory Use ONLY" means not for
actual in-flight aviation use. It should be noted that Belfort
Instruments website even makes mention in a disclaimer that "weather
readings shown on the Internet are advisory only."
Sources: 2 killed in crash of cargo plane (Billings Gazette 20-3-2006);
FAA NTSB
Then, LOOK at ALL these DigiWx AWOS sites which are no longer working:
1.
http://www.digiwx-sandia.com
2.
http://www.digiwx-belen.com
3.
http://www.digiwx-69v.com
4.
http://www.digiwx-u43.com
5.
http://www.digiwx-4nc4.com
6.
http://www.digiwx-demo.com
7.
http://www.digiwx-m01.com
8.
http://www.digiwx-2m8.com
9.
http://www.digiwx-riovistao88.com
10.
http://www.digiwx-driggs-reed.com
11.
http://www.digiwx-moriarty.com
12.
http://www.digiwx-79s.com
13.
http://www.digiwx-buckeye.com
14.
http://www.digiwx-ps81.c0m
And how about these DigiWx AWOS sites displaying "CURRENT DATA NOT
AVAILABLE"
15.
http://www.digiwx-39n.com
16.
http://www.digiwx-pn44.com
17.
http://www.digiwx-74pn.com
18.
http://www.digiwx-n81.com
Belfort only has approx 35 websites with current weather working, yet
fully a third of "former" DigiWx AWOS sites no longer exist! That should
serve as a WAKE-UP CALL for somebody, but apparently not for anyone at
the Belfort Instrument Company!
If you BUY a Belfort Instrument Company DigiWx AWOS, then you truly have
a DEATH WISH for any pilots who rely upon this PIECE OF SHIT for
current, up-to-date and accurate meteorologic weather information!
Google "Belfort Instrument DigiWx AWOS" because there is a LOT of
Belfort TRASH out there..... Don't let Belfort tell you otherwise!
DigiWx AWOS has been in the marketplace for 12 years... and Belfort
still CAN'T get it right..... WHY WOULD YOU WANT ONE???