Macon – Ronkonkoma

The pilot had received clearance for the ILS Runway 6 approach and was advised that the previous landing traffic reported '...breaking out at minimums.' Radar data revealed that the airplane descended in instrument meteorological conditions to the decision height altitude of 294 feet, approximately 3 miles from the missed approach point. The pilot did not perform the missed approach procedure. The airplane leveled off and continued at or below decision height altitude for approximately 28 seconds, traveling a distance of approximately 1 mile. Four low altitude alerts appeared on the tower controller's display. The controller stated he withheld the alert because '...it was a critical phase of flight and the aircraft appeared to be climbing...' The airplane collided with trees and terrain approximately 1.5 miles from the approach end of the landing runway.

Flight / Schedule

Macon – Ronkonkoma

Registration

N425EW

MSN

425-0150

Year of Manufacture

1983

Date

December 16, 1996 at 06:40 PM

Type

CRASH

Flight Type

Executive/Corporate/Business

Flight Phase

Landing (descent or approach)

Crash Site

Airport (less than 10 km from airport)

Crash Location

Ronkonkoma-Long Island-McArthur Field New York

Region

North America • United States of America

Crash Cause

Human factor

Narrative Report

On December 16, 1996 at 06:40 PM, Macon – Ronkonkoma experienced a crash involving Cessna 425 Conquest, operated by US Dynamics Corporation, with the event recorded near Ronkonkoma-Long Island-McArthur Field New York.

The flight was categorized as executive/corporate/business and the reported phase was landing (descent or approach) at a airport (less than 10 km from airport) crash site.

3 people were known to be on board, 3 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.

Crew on board: 1, crew fatalities: 1, passengers on board: 2, passenger fatalities: 2, other fatalities: 0.

The listed crash cause is human factor. The pilot had received clearance for the ILS Runway 6 approach and was advised that the previous landing traffic reported '...breaking out at minimums.' Radar data revealed that the airplane descended in instrument meteorological conditions to the decision height altitude of 294 feet, approximately 3 miles from the missed approach point. The pilot did not perform the missed approach procedure. The airplane leveled off and continued at or below decision height altitude for approximately 28 seconds, traveling a distance of approximately 1 mile. Four low altitude alerts appeared on the tower controller's display. The controller stated he withheld the alert because '...it was a critical phase of flight and the aircraft appeared to be climbing...' The airplane collided with trees and terrain approximately 1.5 miles from the approach end of the landing runway.

Aircraft reference details include registration N425EW, MSN 425-0150, year of manufacture 1983.

Fatalities

Total

3

Crew

1

Passengers

2

Other

0

Crash Summary

The pilot had received clearance for the ILS Runway 6 approach and was advised that the previous landing traffic reported '...breaking out at minimums.' Radar data revealed that the airplane descended in instrument meteorological conditions to the decision height altitude of 294 feet, approximately 3 miles from the missed approach point. The pilot did not perform the missed approach procedure. The airplane leveled off and continued at or below decision height altitude for approximately 28 seconds, traveling a distance of approximately 1 mile. Four low altitude alerts appeared on the tower controller's display. The controller stated he withheld the alert because '...it was a critical phase of flight and the aircraft appeared to be climbing...' The airplane collided with trees and terrain approximately 1.5 miles from the approach end of the landing runway.

Cause: Human factor

Occupants & Outcome

Crew On Board

1

Passengers On Board

2

Estimated Survivors

0

Fatality Rate

100.0%

Known people on board: 3

Operational Details

Schedule / Flight

Macon – Ronkonkoma

Flight Type

Executive/Corporate/Business

Flight Phase

Landing (descent or approach)

Crash Site

Airport (less than 10 km from airport)

Region / Country

North America • United States of America

Aircraft Details

Registration

N425EW

MSN

425-0150

Year of Manufacture

1983