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Last updated: 14 December 2018
Status:Schlussbericht
Datum:Freitag 3 Januar 1992
Zeit:05:46
Flugzeugtyp:Silhouette image of generic B190 model; specific model in this crash may look slightly different
Beechcraft 1900C-1
Operated by:Commutair
On behalf of:USAir Express
Kennzeichen: N55000
Werknummer: UC-135
Baujahr: 1990
Betriebsstunden:1675
Triebwerk: 2 Pratt & Whitney Canada PT6A-65B
Besatzung:Todesopfer: 1 / Insassen: 2
Fluggäste:Todesopfer: 1 / Insassen: 2
Gesamt:Todesopfer: 2 / Insassen: 4
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:8 km (5 Meilen) NE of Saranac Lake-Adirondack Airport, NY (SLK) (   USA)
Flugphase: Annäherung (APR)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Plattsburgh-Clinton County Airport, NY (PLB/KPLB), USA
Flug nach:Saranac Lake-Adirondack Airport, NY (SLK/KSLK), USA
Flugnummer:4821
Unfallbericht:
The Beechcraft 1900C-1 struck Blue Hill at 2280 feet during an ILS approach to Saranac Lake runway 23. The glide slope elevation at that point was approx. 2900 feet.

Probable Cause:

PROBABLE CAUSE: "Failure of the captain to establish a stabilized approach, his inadequate cross-check of instruments, his descent below specified minimum altitude at the final approach fix, and failure of the copilot to monitor the approach. Factors related to the accident were: weather conditions and possible precipitation static interference, caused by inadequate grounding between the radome and fuselage that could have resulted in unreliable glide slope indications."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 2 years and 2 months
Accident number: DCA92MA016
Download report: Summary report

Informationsquelle:
» Air Transport World 2/92
» Flight Safety Foundation - Accident Prevention - July 1995
» ICAO Adrep Summary 1/95 (#15)
» NTSB Safety Recommendations A-94-74/-76
» Scramble 153


Sicherheitsempfehlungen

NTSB issued 3 Safety Recommendations

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Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Plattsburgh-Clinton County Airport, NY to Saranac Lake-Adirondack Airport, NY as the crow flies is 63 km (39 miles).
Accident location: Exact; deduced from official accident report.

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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