What happened
On June 3, 2017, at approximately 15:41 local time, a Boeing 737-53 and registration OB-2138-P, operated by Peruvian Air Lines S.A.C., was performing a scheduled flight (PVN 112) from Jorge Chávez International Airport in Callao to Jauja. The aircraft was carrying 126 passengers and 6 crew members.
During the takeoff roll on runway 15, following the completion of pre-takeoff checks—which included setting the flaps to position five (T/O)—a configuration warning activated in the cockpit. Upon receiving the alarm at an indicated airspeed of 111 knots, the crew executed a successful rejected takeoff (RTO). Because the issue could not be resolved on the runway, the crew proceeded to the parking area, shut down the engines, and canceled the flight, subsequently reporting the failure in the aircraft technical log.
The investigation
The Peruvian Aviation Accident Investigation Commission (CIAA) initiated an investigation and deployed investigators to the field. The investigation involved coordination with the U.S. National Transportation Safety Board (NTSB), which appointed a representative to the process.
Investigators retrieved flight data from the Flight Data Recorder (FDR) via the MiniQar card and reviewed the operator's Safety Management System (SMS) reports. The data confirmed that the aircraft was configured with 5 degrees of flaps prior to takeoff and that the Takeoff Warning alarm triggered during the takeoff roll, leading to the RTO at 111 knots.