Aviation Accident Summaries

Aviation Accident Summary SEA94LA175

PLYMOUTH, WA, USA

Aircraft #1

N4685R

PEZETEL M-18 DROMADER

Analysis

WHILE MAKING AN AERIAL APPLICATION, THE PILOT PULLED UP AND INITIATED A LEFT TURN TO ALIGN FOR HIS NEXT RUN. WHILE ROLLING INTO THE TURN, THE PILOT APPLIED A CONSIDERABLE AMOUNT OF LEFT RUDDER. AS THE TURN PROGRESSED, THE PILOT INITIATED A DESCENT, AND ATTEMPTED TO ROLL OUT OF THE TURN. AS HE APPLIED RIGHT RUDDER, HE FOUND THAT THE RUDDER HAD JAMMED TO THE LEFT, AND BEING CLOSE TO THE GROUND, HE WAS UNABLE TO RECOVER PRIOR TO THE AIRCRAFT IMPACTING THE TERRAIN.

Factual Information

On July 9, 1994, at 1530 Pacific daylight time, a Pezetel M- 18 Dromader, N4685R, collided with terrain while maneuvering to make a pass for aerial application on fields 8 miles west of Plymouth, Washington. The airline transport rated pilot, who was the sole occupant of the aircraft, received minor injuries, and the aircraft sustained substantial damage. Visual meteorological conditions prevailed at the time of the accident. No flight plan had been filed, and there was no report of an ELT activation. According to the pilot, as he pulled up to make a left turn, he applied considerable left rudder. As he entered the descending part of the turn, he began to roll out, and attempted to apply right rudder, but the rudder pedals were jammed in almost the full left rudder position. Being low to the ground, the pilot was unable to arrest the descending turn before the aircraft impacted the terrain. Inspection of the rudder and the rudder control system did not reveal the reason why the system jammed. The pilot was sent copies of NTSB Form 6120.1/2 on two separate occasions, but in both instances he elected not to return them.

Probable Cause and Findings

THE RUDDER BEING JAMMED IN ALMOST THE FULL LEFT POSITION.

 

Source: NTSB Aviation Accident Database

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