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Accident description
Last updated: 23 September 2017
Status:Final
Date:Friday 3 January 1992
Time:05:46
Type: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
Registration: N55000
C/n / msn: UC-135
First flight: 1990
Total airframe hrs:1675
Engines: 2 Pratt & Whitney Canada PT6A-65B
Crew:Fatalities: 1 / Occupants: 2
Passengers:Fatalities: 1 / Occupants: 2
Total:Fatalities: 2 / Occupants: 4
Airplane damage: Destroyed
Airplane fate: Written off (damaged beyond repair)
Location:8 km (5 mls) NE of Saranac Lake-Adirondack Airport, NY (SLK) (   United States of America)
Crash site elevation: 695 m (2280 feet) amsl
Phase: Approach (APR)
Nature:Domestic Scheduled Passenger
Departure airport:Plattsburgh-Clinton County Airport, NY (PLB/KPLB), United States of America
Destination airport:Saranac Lake-Adirondack Airport, NY (SLK/KSLK), United States of America
Flightnumber:4821
Narrative:
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

Classification:
Controlled Flight Into Terrain (CFIT) - Mountain

Sources:
» 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


Follow-up / safety actions

NTSB issued 3 Safety Recommendations

Show all AD's and 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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