Douglas C-118A N4206L

Summary

On 9 June 1984 at about 01:12 local time, a Douglas C-118A registered N4206L was involved in an accident near Deadhorse, Alaska, United States. 3 people were on board and nobody was injured. The aircraft was substantially damaged. No probable cause statement is available for this record.

Date

9 June 1984 at 01:12

Classification

Accident

Location

Deadhorse, Alaska, United States

Nearest airport

Kuparak (UUK)

Coordinates

64.8097, -147.7207

Aircraft

Douglas C-118A

Registration

N4206L

Category

Airplane

Engines

4

Operator

Not recorded

Operating rule

Part 121: Air Carrier

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Anchorage → Unknown

Aircraft damage

Substantial

Weather

IMC

Light

Day

NTSB number

ANC84LA086

Nobody was injured.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

THE ACFT STRUCK A NON-DIRECTIONAL RADIO BEACON TOWER WHILE ON AN ILS DME RWY 05 INSTRUMENT APPROACH TO THE KUPARAK OIL FIELD AIRPORT. INVESTIGATION REVEALED THAT WX ISSUED TO THE ACFT INCLUDED AN INDEFINATE 200 FT SKY OBSCURED CONDITION & VISIBILITY OF 1 1/4 MILES. BOTH THE CAPTAIN & CO-PLT STATED THAT THEY COULD SEE THE OTHER END OF THE RWY. THE DECISION HEIGHT FOR THE APPROACH IS 316 FT MSL; THE ANTENNA HEIGHT WAS 35 FT, AT THIS POINT THE ACFT SHOULD BE 250 FT ABOVE THE GROUND AND OVER THE NON-DIRECTIONAL BEACON TOWER. INVESTIGATION DID REVEAL THAT THE TOWER USED TO BE LOCATED 2800 FT OFF THE APPROACH END OF RWY 05, BUT WAS MOVED TO 1775 FT FROM THE APPROACH END OF RWY 05. EXISTING APPROACH PLATES DID NOT DISPLAY THE NEW LOCATION OF THE ANTENNA OR THE FACT THAT THE ANTENNA WAS ONE FT HIGHER THAN THE MAXIMUM AUTHORIZED BY THE FCC.

Quoted verbatim from the NTSB record.