No fatalities

30 Jul 2009: CESSNA A185F — River Falls, WI

River Falls, WI, United States

On 30 Jul 2009, a CESSNA A185F was involved in an aviation accident near River Falls, WI. No fatalities were reported. Investigators recorded the probable cause as: The pilot not checking the security of the fuel caps prior to flight leading to fuel exhaustion and the subsequent non-mechanical loss of engine power during descent. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A Cessna 185 Skywagon suffered a loss of engine power during descent after the pilot failed to check fuel tank caps. The airplane landed off-airport and sustained substantial damage from high vegetation.

Incident Overview

The pilot of a Cessna 185 Skywagon had the airplane fueled and then departed on a cross-country flight. During the descent to the destination airport, the airplane experienced a loss of engine power. The pilot performed an off-airport landing, during which the airplane collided with high vegetation, resulting in substantial damage.

Preflight Actions

The pilot reported that he did not check the fuel tank caps before the flight. The Cessna 185 Skywagon owner's manual includes a preflight inspection checklist. Relevant items from that checklist include:

  • Step 4 f: Visually check fuel quantity; then check [the right fuel tank’s] fuel filler cap secure and vent unobstructed.
  • Step 6 a: Visually check fuel quantity; then check [the left fuel tank’s] fuel filler cap secure and vent unobstructed.

On-Scene Findings

Upon examination, the fuel tanks were found to contain no fuel. Additionally, the fuel caps were not in place at the accident scene.

Conclusion

The incident highlights the importance of adhering to preflight inspection procedures, specifically the verification of fuel cap security and fuel quantity. The lack of fuel in the tanks and missing caps indicate that fuel was likely lost in flight, leading to the power loss.

Contributing factors

Causes

Pilot

Other contributing factors

Contributed to outcome