Aircraft Accident/Incident Report

Moclips, Washington 98562
Wednesday, May 21, 1997 10:00 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that he lifted off vertically and turned the helicopter downwind toward the first sling load. When the helicopter attained an altitude of 70 to 80 feet above ground level, the engine experienced a loss of power. The pilot initiated a hovering autorotation and just before touchdown, the left side landing skid collided with a 17 gallon fuel jug. The helicopter began to roll to the right and the right side landing skid collided with the ground and collapsed. The helicopter continued to roll to the right and came to rest on its right side. Post accident investigation of the engine revealed that the pneumatic line at the fuel control of the engine was disconnected. Two days prior to the accident the fuel control had been replaced and the mechanic stated that all of the B-nuts had been properly torqued. The pneumatic line, B-nut and threads, and the mating connection on the fuel control were inspected for damage. There was no evidence of damage found to indicate how the B-nut could have backed off the fuel control connection if it had been properly torqued.

NTSB Probable Cause Narrative

Inadequate installation of the fuel control by company maintenance personnel and a loose nut on a line. A disconnected Pc line was a factor.

Event Information

Type of Event Accident
Event Date 5/21/1997
Event Day of the Week Wednesday
Time of Event 1000
Event Time Zone Pacific Daylight Time
Event City MOCLIPS
Event State WASHINGTON
Event Country --
Zipcode of the event site 98562
Event Date Year 1997
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1052 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 125
Weather Observation Facility ID HQM
Elevation of weather observation facility 14
Distance of event from weather observation facility (units?) 19
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 2500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 20
Air Temperature at event time (in degrees celsius) 15
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 230
Variable Wind Indicator Unknown
Wind Speed (knots) 11
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 351
NTSB Notification Source --
NTSB Notification Date May 21 1997 12:00AM
NTSB Notification Time 1038
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:17PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8306F
NTSB Number SEA97LA118
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 133: Rotorcraft Ext. Load
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Hughes
Aircraft Model 369D
Aircraft Series Identifier 369D
Aircraft Serial Number 380274D
Certified Max Gross Weight 3000
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection May 19 1997 12:00AM
Airframe hours since last inspection 5
Airframe Hours 11496
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name OLYMPIC AIR INCORP.
Aircraft Owner Street Address 11771 HIGHWAY 101
Aircraft Owner City SHELTON
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode 98584
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation External Load
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City ABERDEEN
Departure State WA
Departure Country
Departure Time 930
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State WA
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --