KUCHING, July 17 -- Around 4,000 AirBorneo passengers are expected to be affected by flight schedule adjustments following a temporary revision to selected frequencies across the airline's ATR network to improve fleet reliability and operational performance.

The state-owned airline said the temporary changes, which took effect on July 6 and will remain until Oct 24, involve only selected routes and are aimed at reducing last-minute cancellations while allowing essential aircraft maintenance works to be carried out.

AirBorneo said the adjustments were necessary following the temporary grounding of several ATR72 and DHC-6 Twin Otter aircraft due to unscheduled maintenance requirements, compounded by global supply chain constraints affecti...