Accident Mooney 20J N1074Z,
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ASN Wikibase Occurrence # 296298
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Date:Sunday 5 January 2003
Time:13:15 LT
Type:Silhouette image of generic M20P model; specific model in this crash may look slightly different    
Mooney 20J
Owner/operator:Emzon Shung
Registration: N1074Z
MSN: 24-3150
Year of manufacture:1990
Total airframe hrs:1974 hours
Engine model:Lycoming IO-360-A3B6D
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Location:Morristown, New Jersey -   United States of America
Phase: Unknown
Departure airport:Morristown Municipal Airport, NJ (MMU/KMMU)
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Shortly after departure, at an altitude of about 700 feet, the airplane's engine sputtered, then lost power. The pilot initiated a right turn back toward the airport, and attempted a forced landing to a taxiway. During the landing, the airplane's left main landing gear collapsed and the left wing hit the ground. Examination of the airplane's fuel tanks shortly after the accident revealed they were full; however, only a trace of fuel was observed in the fuel filter bowl. The fuel tanks were sumped, and fuel flow was observed to be lower than normal, although no water or ice was observed. After the airplane was thawed in a hangar overnight, fuel flow increased. When the engine was subsequently test run on the airframe, it started without hesitation and ran continuously at various power settings. The airplane had been parked outside during the night prior to the accident flight. The low temperature that night was 28 degrees Fahrenheit, and the dewpoint was 28 degrees Fahrenheit. In addition, light snow and mist were reported throughout the night. According to the pilot, he cleared a significant amount of ice from the airplane during the preflight inspection. Temperature at the time of the accident was 34 degrees Fahrenheit.

Probable Cause: Ice in the fuel system, which resulted in restricted fuel flow and a subsequent loss of engine power.

Accident investigation:
Investigating agency: NTSB
Report number: IAD03LA025
Status: Investigation completed
Duration: 7 months
Download report: Final report



Revision history:

13-Oct-2022 18:58 ASN Update Bot Added

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