Cessna 172M N9594V

Summary

On 7 June 1996 at about 16:50 local time, a Cessna 172M registered N9594V, operated by American Aviation Inc., was involved in an accident near Tooele, Utah, United States. 3 people were on board and 3 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

7 June 1996 at 16:50

Classification

Accident

Location

Tooele, Utah, United States

Nearest airport

Bolinder-Tooele Valley (TVY)

Coordinates

40.5706, -112.3300

Aircraft

Cessna 172M

Registration

N9594V

Category

Airplane

Engines

1

Operator

American Aviation Inc.

Operating rule

Part 91: General Aviation

Purpose of flight

Instructional

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

SEA96LA115

3 people had minor injuries.

failure of the flight instructor (CFI) to ensure that adequate airspeed was maintained during initial climb after lift-off, which resulted in an inadvertent stall/mush. High density altitude was a related factor.

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

Read the full NTSB narrative

The pilot stated that just after takeoff, the airspeed began decreasing, the stall warning horn sounded, and the airplane started sinking despite attempts at corrective action. The airplane impacted the ground beyond the departure end of the runway. Density altitude was 6,385 feet. A videotape, filmed by a rear-seat passenger, showed that the aircraft reached a pitch attitude of up to 24 degrees nose-high after takeoff. It also recorded a sound, resembling the stall warning horn, 42 seconds after start of takeoff roll (about 18 to 19 seconds after becoming airborne), and it recorded no significant change in engine noise pitch during the event. The airplane's electrical flap switch demonstrated improper mechanical operation 'due to normal wear' during postaccident functional testing. Investigation revealed that the pilot took off uphill to the south (average runway slope was 0.81 percent). The FAA's regional airport master record and the Utah state aeronautical chart wrongly indicated that the runway sloped uphill to the north, rather than to the south. The Airport/Facility Directory (A/FD) gave no runway slope data for the airport; the A/FD legend stated that the runway slope would be shown 'only when it is 0.3 percent or more.'

Quoted verbatim from the NTSB record.