Cessna 172S N813SP

Summary

On 6 August 2001 at about 19:45 local time, a Cessna 172S registered N813SP, operated by Erin H. Meade, was involved in an accident near Cooper Landing, Alaska, United States. 4 people were on board and 2 were seriously injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

6 August 2001 at 19:45

Classification

Accident

Location

Cooper Landing, Alaska, United States

Nearest airport

Quartz Creek (JLA)

Coordinates

67.2403, -161.1903

Aircraft

Cessna 172S

Registration

N813SP

Category

Airplane

Engines

1

Operator

Erin H. Meade

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Anchorage → Unknown

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

ANC01FA100

2 people were seriously injured.

The pilot's inadequate remedial action to disconnect the autopilot during an uncommanded altitude deviation while in cruise flight. Factors in the accident were activation of the autopilot; the pilot's lack of familiarity with the airplane's autopilot system; her failure to attain the proper touchdown point during an emergency landing, and delayed go-around resulting in an overrun and collision with trees; the operator's insufficient training standards for the airplane, and the pilot's flight instructor's failure to provide adequate upgrade/transition training in the airplane.

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

Read the full NTSB narrative

The private certificated pilot was on a personal sightseeing flight in a rental airplane. The pilot had limited experience in the airplane that was equipped with an intergrated flight/nav/autopilot system. During cruise flight, the airplane suddenly pitched upward. The pilot pushed forward on the control yoke, and noticed the trim wheel moving in a nose up direction. She used the manual trim wheel to trim the airplane nose down, but the airplane still pitched upward. The pilot began to exert forward pressure on the control yoke to keep the airplane from climbing, and asked her front seat passenger to help push forward on the control yoke. The pilot made a "mayday" call and decided to make an emergency landing at a 2,200 feet gravel surface airport. The pilot said she turned onto about a one mile final approach, but said she was either going too fast, or the runway was too short. The airplane touched down about mid-length on the runway and bounced several times. The pilot saw the end of the runway approaching, and added full throttle to begin a go-around. The airplane collided with trees at the departure end the runway. The pilot said she did not know if the autopilot was on or off, but she did not consciously select or use the autopilot, and did not even know if the airplane was equipped with electric trim. The pilot said she remembered seeing 7000 displayed in a box located above the transponder (the autopilot computer). The pilot said she used the radio transmit button on the left side of the pilot's control yoke, but did not use any other switches on the yoke. The pilot said her front seat passenger is not a pilot, and did not touch any items on the control panel. The autopilot was installed on the right side of the instrument panel. The pilot did not receive any instruction from the operator, or from her flight instructor about the autopilot system, and the pilot did not familiarize herself with the autopilot system. The pilot's flight instructor reported that during a previous training flight with another student, he discovered the autopilot system was on, even though he did not turn it on. Postaccident testing of the autopilot system did not reveal any malfunction.

Quoted verbatim from the NTSB record.