Fuel Exhaustion & Starvation · NTSB NYC08LA224

Aero Vodochody Aero. Works L-29 Delfin — Millville, NJ

2 fatal High-time pilot
DateJune 22, 2008
LocationMillville, NJ
AircraftAero Vodochody Aero. Works L-29 Delfin
Purpose of flightPersonal
ConditionsDay · Visual Meteorological Cond
Phase / occurrencePrior to flight Preflight or dispatch event
Pilot age67
Pilot total time20,000 hrs · High time
Time in typeUnknown
Fatalities2

Probable cause

A total loss of engine power due to fuel starvation as a result of a clogged fuel filter that was not identified due to the pilot's inadequate preflight inspection.

NTSB findings

  • Personnel issues-Task performance-Inspection-Preflight inspection-Pilot - C
  • Personnel issues-Task performance-Maintenance-Scheduled/routine maintenance-Owner/builder
  • Aircraft-Aircraft systems-Fuel system-Fuel filter-strainer-Damaged/degraded - C
  • Aircraft-Aircraft systems-Fuel system-Fuel filter-strainer-Inadequate inspection - C

What happened

While climbing after takeoff, the former Czech military jet trainer experienced a total loss of engine power and struck pine trees in a wooded area about 1 mile southwest of the airport. Subsequent examination of the airplane's fuel system revealed fuel that drained from the fuel filter was contaminated with black sediment, and appeared "extremely cloudy." Additionally, the fuel filter element was contaminated and restricted the flow of fuel to the engine. The pilot purchased the airplane about 1 year prior to the accident. The maintenance records were not located. The pilot fueled the airplane from a tank on the back of a pickup truck. Review of fuel receipts revealed that the day prior to the accident, the pilot purchased about 138 gallons of "kerosene," 6 gallons of "off road diesel," and 27 gallons of "diesel" fuel. Review of a preflight inspection checklist for the airplane revealed that it included discharging "2 liters" of fuel from the fuel filter drain to check for contamination.

An editorial "what led to it / how to avoid it" analysis for this accident is generated separately and will appear here.

View the official NTSB docket →