Cessna 170 accident near Herron, WA

On March 1, 2004, a Cessna 170 (airplane) was involved in an accident near Herron, WA. 2 people died. Damage to the aircraft: destroyed.

Date
March 1, 2004
Place
Herron, WA
Aircraft
Cessna 170 · Airplane
Injuries
2 fatal, 0 serious, 0 minor
Damage
Destroyed
Position
47.281°N, 122.830°W
NTSB ID
20040322X00354

NTSB summary

HISTORY OF FLIGHT On February 29, 2004, approximately 1625 Pacific standard time, a Cessna 170 single-engine airplane, N2534V, registered to and flown by a private pilot, was destroyed during an in-flight collision with water during descent approximately one mile northwest of Herron, Washington. The pilot and his sole passenger sustained fatal injuries. Visual meteorological conditions existed, and no flight plan was filed. The cross-country flight, which was personal and operated under 14 CFR Part 91, originated from the Diamond Point Airstrip (2WA1), Sequim, Washington, approximately 1545. The flight was destined for the Auburn Municipal Airport (S50), Auburn, Washington. According to a family member the pilot departed S50 earlier in the morning for a flight to 2WA1, with a return flight to S50 scheduled later in the afternoon. According to Washington State Search and Rescue personnel, radar data indicated an aircraft departed 2WA1 at 1550 on a southerly heading and climbed to an altitude of 3,400 feet mean sea level (msl) before beginning a descent at 1615 on a south-southeasterly heading. The last recorded radar position on the aircraft was at 1624 over Case Inlet at 47 degrees 17.58 minutes north latitude, 122 degrees 49.41 minutes west longitude. This position was approximately 10 nautical miles west of the Tacoma Narrows Airport (TIW), descending from an altitude of 300 feet msl on a south-southwesterly heading. There were no radio communications between N2534V and air traffic control. Washington State Search and Rescue personnel commenced search operations the follo

Probable cause

The failure of the left muffler while maneuvering, resulting in a carbon monoxide leak into the cabin rendering the pilot incapacitated, and the subsequent uncontrolled descent and impact with water.

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