N/A Airport
Aircraft Accident/Incident Report

Oso, Washington 98223
Tuesady, July 22, 2014 12:15 PDT

NTSB Narrative Summary Released at Completion of Accident

On July 22, 2014, about 1215 Pacific daylight time, an MDHI 369D, N5225C, collided with terrain and rolled downhill several times near Oso, Washington. Olympic Air was operating the helicopter under the provisions of 14 Code of Federal Regulations (CFR) Part 133. The commercial pilot sustained serious injuries, and the helicopter sustained substantial damage during the accident sequence. The local external load flight departed at an undetermined time. Visual (VMC) meteorological conditions prevailed, and no flight plan had been filed. Witnesses heard the helicopter's sound change, and observed it going down. It contacted the ground on a steep slope, and rolled. A Federal Aviation Administration (FAA) inspector examined the wreckage on site. He noted that main rotor blade's fragmented into many pieces that were scattered along the hillside. He identified four of the five blades. During recovery, personnel located the fifth blade about 900 feet away, and with much less damage. That blade was sent to the National Transportation Safety Board Material's Laboratory for further examination.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 7/22/2014
Event Day of the Week Tuesday
Time of Event 1215
Event Time Zone Pacific Daylight Time
Event City Oso
Event State WASHINGTON
Event Country --
Zipcode of the event site 98223
Event Date Year 2014
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 481360N
Event Location Longitude 1215500W
Event Location Airport N/A
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 --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1215 Pacific Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID KAO
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 9000
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 160
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.08
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KAWO 221915Z AUTO 16004KT 10SM OVC090 18/12 A3008
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) --
NTSB Notification Source FAA NWM Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 6 2014 6:13PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5225C
NTSB Number WPR14LA308
Missing Aircraft Indicator --
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 MDHI
Aircraft Model 369D
Aircraft Series Identifier --
Aircraft Serial Number 590497D
Certified Max Gross Weight 3000
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats 5
Total number of seats on the aircraft --
Number of Engines --
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name OLYMPIC AIR INC
Aircraft Owner Street Address --
Aircraft Owner City SHELTON
Aircraft Owner State WA
Aircraft Owner Country USA
Aircraft Owner Zipcode 98584
Operator is an individual? No
Operator Name OLYMPIC AIR INC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City SHELTON
Operator State WA
Operator Country USA
Operator Zip code 98584
Operator Code --
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) External Load
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Oso
Departure State WA
Departure Country USA
Departure Time --
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City Oso
Destination State WA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 6 2014 6:13PM
User who most recently changed record coos
Since inspection or accident --
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --