SEA94FA194

NTSB accident investigation · Hughes 369HS · Seaside, OR · July 24, 1994

Accident · FatalField investigationFinal report
Date
July 24, 1994, 10:30 local (17:30 UTC)
Place
Seaside, OR
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N7771FHughes 369HS
Weather
Visual (VMC) · Day
Status
Completed · report June 19, 1995
Report
Approved by Office Director
FAA report
19940724019209A
Case key
41817

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

Inflight collision with terrain for undetermined reasons.

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.

In flight collision with terrain/waterManeuvering
Reason for occurrence undeterminedCause

Analysis

A witness reported hearing the sound of an impact, turned, and saw something slide into the water. The aircraft was not recovered due to strong ocean currents in the vicinity of the impact site.

Factual narrative

History of flight

On July 24, 1994, approximately 1030 Pacific daylight time, a Hughes 369HS helicopter, N7771F, collided with terrain while conducting a sightseeing flight at Ecola State Park, near Seaside, Oregon. The commercial pilot and his passenger were fatally injured in the crash. Visual meteorological conditions were reported in the Seaside vicinity at the time of the crash. There was no ELT reported, and there was no flight plan for the flight.

A hiker heard the impact of the helicopter, and turned to see what he believed to be parts of the helicopter falling from the cliffs along the Pacific Ocean shoreline, then ran to a telephone to notify authorities. Search and rescue personnel found an oil slick off Bird Point, in Tillamook Head Park, at 45 degrees 56.5 N, 123 degrees 59.5 W. The remains of the pilot and passenger were recovered by divers, with the pilot's remains being recovered on July 26.

The aircraft could not be recovered after several attempts. Divers reported very strong currents in the vicinity. Some small pieces of the aircraft were found weeks after the accident.

The mechanic for the operator refused to provide information regarding refueling or maintenance on the aircraft. He did state that the helicopter had departed from the operator's helipad outside Seaside, Oregon.

Medical and pathological information

Autopsies were performed on both the pilot and his passenger by Drs. Edward Wilson and Karen Gunson, respectively, at Portland, Oregon. Cause of death was stated "drowned," and "asphyxiation by drowning," respectively.

Toxicological samples were tested by the FAA. No ethanol was detected in urine. Quinine was detected in urine. Carbon monoxide and cyanide analysis was not performed due to lack of suitable specimens.

Additional information

On December 29, 1994, the aircraft logbooks and records were returned to the owner of record after inspection.

Aircraft

Registration
N7771F
Reported as
Hughes 369HS
Category
Helicopter
Serial number
6203905
Engine
Allison 250-C20, 400 horsepower, turbo shaft
Damage
Destroyed
Fire
Unknown
Flight
Part 91
Operator
Helicopter Enterprises, Inc, doing business as Seaside Helicopters
Registered owner
Arden Danielson
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 13, 1994
Departed
OR

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
47
Certificates
Airline transport, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
3,092 total

Weather

Conditions
Visual (VMC) · Day
Visibility
15 statute miles
Lowest ceiling
None
Temperature
61 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.