Aviation Accident Summaries

Aviation Accident Summary LAX94LA366

FORT BRAGG, CA, USA

Aircraft #1

N30150

PIPER PA-28R-201

Analysis

THE AIRCRAFT COLLIDED WITH TREES AFTER AN IN-FLIGHT LOSS OF CONTROL DURING THE TAKEOFF CLIMB. THE PILOT SAID THE AIRPLANE STALLED ABOUT 3/4 MILE FROM THE DEPARTURE END OF THE RUNWAY. THE STALL WARNING SOUNDED AT 80 KNOTS AS THE PILOT REACHED FOR THE LANDING GEAR LEVER. THE AIRPLANE'S LEFT WING DROPPED TO A 10- DEGREE ANGLE OF BANK, FOLLOWED BY A 60-DEGREE RIGHT ROLL. THE AIRPLANE THEN SETTLED AND COLLIDED WITH TREES IN A 30-DEGREE RIGHT BANK. THE AIRPORT IS LOCATED IN A CLEAR AREA SURROUNDED BY TALL TREES. THE PILOT REPORTED ENCOUNTERING AN OFFSHORE BREEZE FROM HIS RIGHT ONCE THE AIRPLANE CLEARED THE TOPS OF THE TREES. ALTHOUGH HE DID NOT QUANTIFY THE WIND SPEED, HE DID STATE THAT THE WINDS ON THE AIRPORT SURFACE WERE CALM, WHILE THE LOW LEVEL CLOUDS WERE MOVING VERY FAST AT THE WESTERN BOUNDARY OF THE TREE LINE.

Factual Information

On September 16, 1994, at 1820 hours Pacific daylight time, a Piper PA-28R-201, N30150, collided with trees after an in-flight loss of control during the takeoff climb from runway 16 at the Fort Bragg Airport, Fort Bragg, California. The airplane was operated by Sundance Flying Club, Palo Alto, California, and rented by the pilot for a personal flight. The airplane was destroyed in the collision sequence. The certificated private pilot and one passenger received minor injuries. Two other passengers received serious injuries. The flight to Fort Bragg originated from San Carlos, California, at 1615 hours and the pilot was returning to San Carlos at the time of the accident. Visual meteorological conditions prevailed. The pilot indicated the airplane stalled about 3/4 mile from the departure end of runway 16. The pilot heard the stall warning sound at 80 knots of airspeed as he was reaching for the landing gear lever. The airplane's left wing dropped to a 10-degree angle of bank, followed by a 60-degree right roll. The airplane settled and collided with trees in a 30-degree right bank. The pilot also stated he encountered an offshore breeze from his right once the airplane cleared the trees surrounding the airport. He did state that the winds on the airport surface were calm, while low-level clouds were moving very fast at the western end of the tree line. He reported no mechanical malfunctions.

Probable Cause and Findings

the pilot's failure to adequately anticipate and compensate for the existing crosswind/windshear conditions during the takeoff initial climb.

 

Source: NTSB Aviation Accident Database

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