N204PC

Destroyed
Minor

MBB BO-105S S/N: S783

Accident Details

Date
Thursday, January 6, 1994
NTSB Number
SEA94LA047
Location
CLEARWATER, OR
Event ID
20001206X00682
Coordinates
43.160728, -122.210136
Aircraft Damage
Destroyed
Highest Injury
Minor
Fatalities
0
Serious Injuries
0
Minor Injuries
3
Uninjured
0
Total Aboard
3

Probable Cause and Findings

THE PILOT IN COMMAND'S FAILURE TO MAINTAIN CLEARANCE WITH THE TRANSMISSION WIRES. FACTORS CONTRIBUTING TO THE ACCIDENT WERE THE WIRES AND SUNGLARE.

Aircraft Information

Registration
N204PC
Make
MBB
Serial Number
S783
Engine Type
Turbo-shaft
Model / ICAO
BO-105S B105
Aircraft Type
Rotorcraft
No. of Engines
2

Registered Owner (Historical)

Name
PACIFICORP TRANS INC
Address
7909 N E AIRPORT WAY
Status
Deregistered
City
PORTLAND
State / Zip Code
OR 97218
Country
United States

Analysis

On January 6, 1994, approximately 1445 hours Pacific standard time (PST), a Messerschmitt-Boelkow-Blohm BO-105S, N204PC, registered to and operated by Pacificorp Trans, Inc., and being flown by Lawrence E. Cranford, an airline transport rated helicopter pilot, was destroyed during a collision with wires and subsequent ground impact approximately 5 miles east of Clearwater, Oregon. The pilot and two passengers sustained minor injuries. Visual meteorological conditions prevailed and a company VFR flight plan was in effect. The flight, which was being conducted for the purposes of aerial observation of wildlife, was to have been operated in accordance with the requirements set forth in 14CFR91.

The pilot reported that he was flying in a southwesterly direction while following a manmade canal at about 50 feet above ground. The canal emptied into an east/west oriented forebay (small pond) and as the helicopter continued following the forebay its flight path was adjusted to a westerly heading. The pilot reported that "as we turned to a westerly heading over the forebay, my forward visibility was restricted by the afternoon sun" and "at the last minute myself (sic) and the front seat passenger saw power lines across the forebay." The pilot reported that he attempted to turn and decelerate to avoid the wires but was unsuccessful. The main rotor blades contacted at least two of the three power lines and the helicopter then descended out of control, impacting near the shoreline of the lake in a near inverted attitude.

The elevation and azimuth of the sun at the time of the accident was approximately +16 degrees above the horizon and 216 degrees (true) respectively.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# SEA94LA047