Aviation Accident Summaries

Aviation Accident Summary SEA05CA082

McCammon, ID, USA

Aircraft #1

N8715E

Piper PA-28-140

Analysis

Prior to departing on the second leg of the cross-country flight the pilot filled both fuel tanks to capacity, 48 usable gallons, equating to 4.8 hours of flight time. After completing the second leg of the flight, which took 3 hours and 35 minutes (3.58 hours), and unable to purchase fuel at the intermediate stop, the pilot calculated he had 1.22 hours of fuel remaining, more than enough to fly 65 miles to another airport where fuel was available. Approximately 20 minutes into the flight the engine began to run rough. The pilot switched tanks, which resulted in the engine running normal, but just as he was about to proceed to an alternate airport the second tank ran dry and the engine quit. An emergency landing to a field resulted in the airplane touching down, bouncing, and impacting two small trees. The airplane then struck a raised driveway before being launched back into the air and hitting the ground, shearing off both the front and left main landing gear. The aircraft came to rest in an upright position after sliding through a barbed wire fence. An FAA inspector confirmed the lack of fuel in both fuel tanks and substantial damage to both wings. The inspector also observed a homemade placard located above the fuel gage panel which read, "FUEL GAGES MAY INDICATE AS MUCH AS 2 1/2 GALLONS WHEN TANKS ARE EMPTY". The pilot reported no anomalies with the airplane prior to the accident, which would have prevented normal operations.

Factual Information

On April 15, 2005, approximately 1730 mountain daylight time, a Piper PA28-140, M8715E, was substantially damaged during a forced landing following a loss of engine power near McCammon, Idaho. The airplane was registered to and operated by a private individual. The certificated private pilot and his sole passenger were not injured. Visual meteorological conditions prevailed for the personal cross-country flight, which was operated in accordance with 14 CFR Part 91, and a flight plan was not filed. The flight departed the Malad City Airport, Malad, Idaho, at 1700, and its destination was the Pocatello Regional Airport, Pocatello, Idaho. In a written statement, the pilot reported that he had filled both fuel tanks to their maximum capacity (50 total gallons/48 usable gallons) prior to departing Mesquite, Nevada, for his flight to the Malad City Airport, an intermediate fueling stop. The pilot stated that using a conservative fuel burn rate of 10 gallons per hours, he had 4.8 hours of fuel on board prior to departing Mesquite. The pilot reported that his en route flight time to Malad was 3 hours and 35 minutes (3.58 hours), which left him with 1.22 hours of fuel remaining upon arrival. The pilot stated that after he was unable to purchase fuel in Malad, he decided to proceed to Pocatello, Idaho, for fuel, a distance of 65 statute miles. The pilot further stated that the flight to Pocatello would take approximately 30 minutes (.52 hours) flying time, and that according to his calculations he would have 42 minutes of fuel remaining upon his arrival. The pilot reported that approximately 20 minutes into the flight, "...the engine began to cough. I switched tanks and the plane immediately began to run normal. We were 18 statute miles from Pocatello at that point." The pilot further reported that as he was about to proceed to an alternate airport when the second tank ran dry. The pilot related, "We spotted a nice two-lane road and headed for it. Upon closer inspection I noticed power-lines along the road and several vehicles going both directions on the road." The pilot stated that he then made a 180-degree turn to avoid hilly terrain and set up to land in an field. The pilot reported that after touching down the airplane bounced once before impacting two small trees, which caused the airplane to swing to the left. The airplane then struck a raised driveway and jumped into the air before hitting ground, shearing off the front and left main landing gear. The pilot stated the airplane subsequently slid on its belly and came to rest upright after sliding through a barbed wire fence. A Federal Aviation Administration Inspector from the Salt Lake City, Utah, Flight Standards District Office, examined the aircraft and confirmed the lack of fuel in the fuel tanks. The inspector observed a homemade placard above the fuel gage which read, "FUEL GAGES MAY INDICATE AS MUCH AS 2 1/2 GALLONS WHEN TANKS ARE EMPTY". The inspector reported that both wings sustained substantial damage, and that the damage to the propeller was indicative that the engine was not producing power. The pilot reported no anomalies with the airplane prior to the accident, which would have prevented normal operations.

Probable Cause and Findings

A loss of engine power due to the pilot's inadequate in-flight decision/planning by failing to refuel while en route, resulting in fuel exhaustion. Factors contributing to the accident included the trees and fence.

 

Source: NTSB Aviation Accident Database

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