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N9556U accident description

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Crash location 33.738055°N, 116.853889°W
Nearest city Hemet, CA
33.747520°N, 116.971968°W
6.8 miles away
Tail number N9556U
Accident date 10 Nov 2016
Aircraft type Grumman American AVN. CORP. Aa 1C
Additional details: None

NTSB Factual Report

On November 10, 2016, about 1135 Pacific standard time, a Grumman American AA-1C airplane, N9556U, experienced a complete loss of engine power and landed on a field east of Hemet, California. The private pilot and pilot-rated passenger were not injured; the airplane sustained substantial damage. The airplane was registered to, and operated by, the pilot under the provisions of 14 Code of Federal Regulations Part 91 as a local personal flight. Visual meteorological conditions prevailed and no flight plan was filed for the flight that originated from Hemet-Ryan Airport (HMT), at 1043.

The pilot reported that the airplane was last refueled, and operated, about one month prior to the day of the accident. The morning of the accident, he believed the airplane still had about 17-18 gallons of fuel for the flight. The pilot mentioned that the airplane's fuel float gauges are not accurate; therefore, he peered inside of the left fuel tank from the filler cap and observed fuel. He did not check the right fuel tank because the style of tank would restrict his view of any fuel. They departed the airport with the left fuel tank selected and practiced a few standard maneuvers; during which, the engine hesitated for a brief second. The pilot switched to the right fuel tank and they turned back towards the airport; about one minute later he switched to the left fuel tank and continued to fly at full power. After feeling confident there was fuel in the left tank, the pilot switched back to the right fuel tank and climbed to 8,000 feet, continuing the flight as normal. Shortly after, they proceeded back towards the airport when the engine suddenly lost power. The pilot attempted emergency procedures and troubleshooting, but to no avail. The pilot located a suitable field for the emergency landing, however, during the landing roll on the soft, dry, and rocky terrain, the airplane nosed over, coming to rest inverted.

Recovery personnel reported that during the recovery process he removed very little fuel from the left auxiliary fuel tank, otherwise, the right auxiliary fuel tank and the main fuel tanks were empty. In addition, he mentioned that he did not observe any breaches in the fuel tanks, nor did he smell any fuel at the accident site.

NTSB Probable Cause

The pilot’s failure to ensure that sufficient fuel was available for the flight, which resulted in a total loss of engine power due to fuel exhaustion.

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