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N625SR accident description

Florida map... Florida list
Crash location 30.055000°N, 83.651667°W
Nearest city Perry, FL
30.117435°N, 83.581815°W
6.0 miles away
Tail number N625SR
Accident date 21 Mar 2013
Aircraft type Piper PA-23-250
Additional details: None

NTSB Factual Report

On March 21, 2013, about 0840 eastern daylight time, a Piper PA-23-250, N625SR, was substantially damaged during a forced landing into trees 4 miles southwest of Perry, Florida. The airline transport pilot received minor injuries and was the sole occupant. Visual meteorological conditions prevailed and an instrument flight rules flight plan was filed. The flight originated at the Orlando Executive Airport (ORL), Orlando, Florida, about 0735 with an intended destination of Tallahassee Regional Airport (TLH), Tallahassee, Florida. The executive/corporate flight was conducted under the provisions of Title 14 Code of Federal Regulations Part 91.

According to the pilot, while in cruise flight the left fuel flow was "fluctuating," he activated the electric fuel pump, and the fuel flow stabilized. After a few minutes of a stabilized fuel flow, he deactivated the electric fuel pump, and the fuel flow remained "stable." He initiated a descent from a cruise altitude of 8,000 feet above mean sea level and switched to the "full" outboard fuel tanks. He then noted that his right engine began to lose power and subsequently experienced a total loss of power. He feathered the right propeller and selected the right mixture to idle cut off. The pilot informed Tallahassee Approach Control of the engine failure and elected to continue his flight as planned to TLH. As he was making this determination the left engine experienced a total loss of power. The pilot maneuvered the airplane toward Perry-Foley Airport (40J), Perry, Florida and declared an emergency. The airplane subsequently impacted 16-foot tall pine trees prior to coming to rest upright.

Local authorities reported that upon arrival there was a strong fuel "aroma" at the accident location.

A fuel receipt from a fixed base operator (FBO) revealed that two days prior to the accident the airplane was fueled with 94.1 gallons of fuel, according to the pilot the "aircraft fuel was full." A sampling of the fuel was conducted following the accident and no contamination was noted. The FBO further reported that about 1000 gallons of fuel had been pumped from the time the accident airplane was fueled until they were notified of the accident.

Photographs provided by a Federal Aviation Administration (FAA) inspector revealed substantial damage to both wings, fuselage, and empennage. The FAA inspector further reported that the left wing tip fuel tank was separated from the airplane, engine continuity was confirmed; however, cylinder compression checks were unable to be accomplished. Fuel lines were removed from the electric fuel boost pumps and both engine driven fuel pumps and fuel was present in all of the fuel lines examined. The fuel lines were removed from the engine flow dividers and the left engine flow divider contained fuel and the right engine flow divider was devoid of fuel. Continuity was verified from the left and right throttle control and mixture control to the fuel servos. Continuity was verified from the left and right fuel selectors to the fuel shut-off valves; however, the tank selected at impact was not noted. All magneto switches were found in the "ON" position. The pilot reported to the FAA, that he had switched the fuel selector valve from the inboard fuel tanks to the outboard fuel tanks just prior to the engine failure. The pilot also reported that the fuel tanks were switched starting with the right engine and then the left engine.

The fuel system contained two independent units that allow each engine to have its own fuel supply. The fuel cells consist of two bladder type fuel tanks located in each wing designated as an "inboard" and "outboard" fuel tank and a wingtip fuel tank that was interconnected to the associated outboard fuel cell. The outboard fuel cell, including the wingtip tank had a capacity of about 55 gallons of fuel each, and the inboard fuel cells had a capacity of 35 gallons of fuel each; total fuel capacity was about 180 gallons for the airplane. The system was designed to take fuel from each fuel cell through a finger screen then to the fuel selector valve. After the selector valve, fuel was routed either directly to the engine driven fuel pump or through the electric fuel pump. The systems were connected only by a crossfeed valve that allowed fuel to be drawn from one set of fuel cells to the engine on the opposite side, after passing through the engine driven fuel pump. The fuel selector valves consisted of control handles located on the fuel control box between the two front seats.

According to a representative of the salvage company that recovered the airplane, the fuel tanks were breached and devoid of fuel; there was a strong fuel smell at the accident location. However, the airplane wreckage was sold and was not available to be examined by the NTSB, and thus no determination could be made as to why both engines lost power.

NTSB Probable Cause

The total loss of engine power for reasons that could not be determined based on the available evidence.

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