Cessna 182H N8321S

Summary

On 9 June 2000 at about 19:15 local time, a Cessna 182H registered N8321S was involved in an accident near Hillsboro, Oregon, United States. 2 people were on board and 2 had minor injuries. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

9 June 2000 at 19:15

Classification

Accident

Location

Hillsboro, Oregon, United States

Nearest airport

Stark's Twin Oaks Airpark (7S3)

Coordinates

45.4390, -122.9606

Aircraft

Cessna 182H

Registration

N8321S

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Other Work Use

Phase of flight

Not recorded

Route

Troutdale → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA00LA102

2 people had minor injuries.

The pilot's inability to maintain the correct approach airspeed (Vref) on final due to incorrect airspeed indications resulting from a partial blockage of the pitot line. Factors include a quartering tailwind, a wet runway, and the pilot's decision not to lower the flaps during the landing.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

While en route to his original destination, and while diverting to his home airport, the pilot was unable to achieve the desired indicated airspeed using the throttle settings that he was accustomed to. Upon reaching the airport, due to local takeoff and landing terrain avoidance procedures, the pilot chose to land on a runway with a tailwind of approximately 10 knots. Believing that the aircraft's engine was experiencing a malfunction that reduced its ability to produce thrust, he chose to use only 20 degrees of flaps while on final. As he crossed the runway threshold, he realized that his ground speed was excessive, but elected not to go around because of the suspected engine problem and the danger of impacting the trees on rising terrain off the departure end of the runway. The aircraft touched down about half way down the wet runway, and although the pilot applied maximum braking, he was unable to stop the aircraft before it departed the far end of the runway and went over an embankment. A post-accident inspection of the engine determined that it had not malfunctioned, but multiple contaminants were found in the pitot system mast and lines. The size and structure of the contaminants were such that they interfered with the correct display of the aircraft's indicated airspeed.

Quoted verbatim from the NTSB record.