N28452

Destroyed
Fatal

Grumman American AA-5B S/N: AA5B0617

Accident Details

Date
Monday, July 8, 1996
NTSB Number
SEA96LA146
Location
ST MARIES, ID
Event ID
20001208X06363
Coordinates
47.199752, -116.550491
Aircraft Damage
Destroyed
Highest Injury
Fatal
Fatalities
1
Serious Injuries
0
Minor Injuries
0
Uninjured
0
Total Aboard
1

Probable Cause and Findings

the pilot's impairment of judgment and performance due to a drug (marijuana), and his failure to see-and-avoid power lines. The pilot's intentional low altitude flight was a related factor.

Aircraft Information

Registration
N28452
Make
GRUMMAN AMERICAN
Serial Number
AA5B0617
Engine Type
Reciprocating
Model / ICAO
AA-5B AA5
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1

Registered Owner (Historical)

Name
MILLS MARTIN BRUCE
Address
PO BOX 4966
Status
Deregistered
City
S LAKE TAHOE
State / Zip Code
CA 96157
Country
United States

Analysis

On July 7, 1996, approximately 1700 Pacific daylight time, N28452, a Grumman American AA-5B, being operated by the owner/pilot, struck power lines, caught fire and subsequently collided with terrain near St. Maries, Idaho. The airplane burned following the wire strike and subsequent crash. The private pilot, who was the sole occupant, was fatally injured. No flight plan had been filed. The personal flight was conducted under 14 CFR 91.

According to the sheriff of Benewah County, Idaho, a low-flying complaint had been lodged with his office on N28452 approximately three days before the accident, and the airplane had been observed performing "low-altitude stunts" in the vicinity of St. Maries. On the day of the accident, witnesses reported to the sheriff that they observed the airplane flying at (in the words of one witness) "tree height [approximately 60 feet above ground level] making tight right and left sweeps following the turns in the [St. Joe] river." The witnesses reported that they then saw the airplane strike a power line crossing over the river, knocking the power line down into the river, and that following this wire strike, flames erupted from the aircraft. They stated that after the wire strike, the airplane continued approximately one mile further west, beginning a right turning climb and then turning back to the south. They reported that the airplane then struck a second power line, which ran east/west, and crashed into a field. Photos taken by deputy sheriffs who made the emergency response to the accident showed clear skies with unrestricted visibility at the accident site. These photos showed the aircraft wreckage still on fire. Photos taken by FAA investigators showed downed power lines in the accident area and sections of wire in the aircraft wreckage.

The FAA Civil Aeromedical Institute (CAMI), Oklahoma City, Oklahoma, performed toxicology tests on the pilot. The CAMI toxicology tests detected the presence of 0.028 ug/ml of tetrahydrocannabinol (marijuana) in the pilot's blood, 0.093 ug/ml of tetrahydrocannabinol carboxylic acid (marijuana) in the pilot's blood, and 0.869 ug/ml of tetrahydrocannabinol carboxylic acid (marijuana) in the pilot's urine. A toxicology specialist at the NTSB's headquarters in Washington, D.C. characterized these levels as "very high...supportive of heavy use of the drug", and that the levels were consistent with use of the drug "within a few minutes of the accident."

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# SEA96LA146