Once the aircraft reached cruising altitude, the captain allegedly asked the co-pilot if he could sleep and fell asleep for an hour. After briefly waking up, he asked if the co-pilot wanted to trade places but the 28-year-old declined.
The pilot fell back asleep but 28 minutes later, when he woke up, he realised the aircraft had veered off course and his co-pilot was asleep, the report stated.
During the pilots’ shared sleep, the air control centre in Jakarta noticed the abnormal flight path and tried to contact the pilots many times.
The captain corrected the aircraft and safely landed in Jakarta, without any issues or injuries.
Batik Air has temporarily suspended both pilots, according to the New York Post, and Indonesia’s Transport Ministry has criticised the airline for the incident.
Civil aviation director-general M Kristi Endah Murni said they would conduct an independent investigation, state news agency Antara reported.
“We will carry out an investigation and review of the night flight operation in Indonesia related with Fatigue Risk Management for Batik Air and all flight operators,” Kristi said.
This isn’t the first time pilots have fallen asleep “at the wheel”. In 2022, an Ethiopian Airlines flight completely missed its landing, as the two pilots fell asleep and the Boeing 737′s autopilot system meant it continued cruising at 37,000 feet.
These types of incidents will not come as a surprise to the European Cockpit Association, which conducted a study on napping midair in July 2023. After surveying 6893 pilots, the association found that 75 per cent said they had fallen asleep at least once while flying a plane.