What happened
On 25 June 2020, a Reims Cessna F152, registration G-BTAL, was conducting a private flight at Shobdon Aerodrome in Herefordshire. The pilot, who was performing circuits to regain flying currency after a period of inactivity, had completed two successful laps before the incident occurred during the third circuit.
While climbing at an altitude between 300 and 400 feet, the engine experienced a sudden loss of power. The pilot noted the sensation of the throttle being pulled to idle. Although power briefly returned, the pilot chose to treat the situation as a total engine failure. After issuing a MAYDAY call, the pilot focused on an emergency landing in a field located to the east of the aerodrome. During the approach, the pilot encountered a slight crosswind and a ditch in the landing area, which required a corrective maneuver to clear. The aircraft landed without no damage and the pilot escaped without no injuries.
The investigation
Investigators examined the engine and fuel systems to identify the cause of the power loss. While no fuel contamination was found in the filters, a small piece of tape was discovered inside one of the fuel tanks, though it was not believed to have obstructed fuel flow. The investigation also considered the possibility of carburettor icing, noting that the atmospheric conditions—specifically a temperature of 29°C and a dew point of 17°C—were conducive to icing during descent. The exact cause of the power loss remained undetermined.
Findings
- The pilot's decision to treat a partial power loss as a complete engine failure was a critical factor in the safe outcome.
- Pre-flight mental preparation and reviewing emergency procedures helped the pilot maintain aircraft control and focus on the landing.
- The engine failure may have been caused by carburettor icing.