- Date
- June 8, 1984, 17:12 local (Jun 9, 1984, 01:12 UTC)
- Place
- Deadhorse, AK
- Injuries
- 3 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N4206LDouglas C-118A
- Weather
- Instrument (IMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19840608031639A
- Case key
- 4300
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
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.
Aircraft
- Registration
- N4206L
- Reported as
- Douglas C-118A
- Category
- Airplane
- Serial number
- 43709
- Airframe hours
- 28,778
- Engine
- P&W R-2800CB16/17, 2,400 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Part 121
- Registered owner
- Northern Air Cargo, Inc.
- Airworthiness certificate
- Standard, Normal
- Departed
- ANC · Anchorage, AK
- Flight plan
- IFR
- Airport
- UUK · Kuparak, runway 5, 6,000 × 130 ft, gravel
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 36
- Certificate
- Airline transport
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
- Seat
- Left
Weather
- Conditions
- Instrument (IMC) · Day
- Wind
- 260° at 4 knots
- Visibility
- 1 statute miles
- Lowest ceiling
- 200 ft
- Temperature
- 36 °F, dew point 36 °F
- Altimeter
- 30.00 inHg
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.