What happened
On October 25, 2015, a Cessna 152, registration OB-1834-P, operated by Master of the Sky, was conducting a flight training mission between Lib Mandi, Pisco, and Nazca. After performing a touch-and-go maneuver at the Nazca aerodrome (SPZA) at 17:54 local time, the crew attempted to climb to 5,500 feet MSL.
While passing through 3,500 feet, approximately 10 nautical miles from the aerodrome, the crew observed a drop in oil pressure on the cockpit instruments. Although oil temperature remained within the green arc, the crew noticed an oil stain on the lower rear section of the fuselage. The crew declared an emergency and requested instructions to return to the airport. During the approach, the engine suffered a complete shutdown near the Pan-American Highway (Km. 441). The crew executed an emergency landing on the highway, completing the maneuver without further incident.
The investigation
The CIAA investigation involved field inquiries and coordination meetings with the flight crew, maintenance personnel, air traffic controllers, and emergency responders. Investigators examined the engine at an authorized workshop, which confirmed internal damage. The investigation also focused on airworthiness processes related to the incident.
Findings
- The engine experienced a loss of oil pressure during the climb.
- An oil leak was visible on the underside of the aircraft fuselage.
- The engine shutdown occurred prior to reaching the aerodrome.
- There were no injuries to the two crew members and no damage to private property.