Cessna 172 N6446B

Summary

On 9 June 1993 at about 16:12 local time, a Cessna 172 registered N6446B was involved in an accident near Canyon Lake, Texas, United States. One person was on board and one 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 1993 at 16:12

Classification

Accident

Location

Canyon Lake, Texas, United States

Nearest airport

Canyon Lake (34TS)

Coordinates

29.8705, -98.2608

Aircraft

Cessna 172

Registration

N6446B

Category

Airplane

Engines

1

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

FTW93LA184

1 person had minor injuries.

THE MOVEMENT OF THE PILOT'S SEAT AFT WHICH RESULTED IN HIS LOSS OF CONTROL, HIS INABILITY TO REGAIN CONTROL, AND THE ENSUING INADVERTENT STALL. A FACTOR WAS THE INADEQUATE INSPECTION OF THE AIRPLANE.

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

Read the full NTSB narrative

THE PILOT STATED THAT DURING THE RUN UP, HE MOVED HIS SEAT BACK TO SECURE ONE OF THE DOORS AND THEN READJUSTED HIS SEAT TO ITS ORIGINAL POSITION. SHORTLY AFTER LIFTOFF, THE SEAT TRAVELED AFT AND THE PILOT LOST CONTROL OF THE AIRPLANE. IT SUBSEQUENTLY IMPACTED TREES IN A NOSE DOWN ATTITUDE OFF ONE SIDE OF THE RUNWAY. EXAMINATION OF THE SEAT LATCHING MECHANISM REVEALED THAT IT WAS INTACT, AS WERE THE SEAT TRACKS. EXAMINATION OF THE LATCHING HOLES INDICATED THAT THEY WERE ELONGATED AND SCRAPE MARKS WERE EVIDENT BETWEEN THE HOLES. THE END OF THE LATCHING PIN WAS ROUNDED. THE SEAT LATCHING MECHANISM SUBSEQUENTLY OPERATED NORMALLY. THE SEAT LATCH AD INSPECTION HAD LAST BEEN PERFORMED TWO YEARS PRIOR TO THE ACCIDENT.

Quoted verbatim from the NTSB record.