A Hawaiian Airlines flight bound for Kahului, Hawaii from Sacramento diverted to Oakland after experiencing an air-conditioning system failure on 11 August 2025.
Hawaiian airlines flight HA59, operated by an Airbus A321neo, had departed from Sacramento International Airport (SMF).
The flight was a scheduled service bound for Kahului Airport (OGG), Hawaii.
Hawaiian Airlines HA59 Sacramento-Kahului
As the flight transited the Pacific Ocean at cruising altitude, flight crew reported experiencing a problem with the aircraft’s backup air-conditioning system.
The system is a mandatory operating requirement to comply with ETOPS flight operations. As a result, flight crew initiated a turnaround and diverted to Oakland International Airport (OAK).
The flight subsequently landed on runway 30 Oakland International Airport just over two hours after its initial departure from Sacramento.
A replacement aircraft was mustered by the airline to carry out the onwards flight service to Hawaii.
Flight & Aircraft Details
Flight data shows that flight HA59 and departed from Sacramento International Airport at 10:05 AM local time on 11 August. Scheduled departure time for the flight rotation was listed as 8:50 AM local time.
Following departure, the flight had set course normally, and had climbed to flight level FL300 before the turnaround was carried out over the Pacific Ocean.
Following the diversion, flight crew descended the aircraft to FL220 for the return leg to Oakland International Airport.
The aircraft conducting the HA59 service was an Airbus A321-200N, registered N226HA. This is a six year old narrow body aircraft belonging to the carrier Hawaiian Airlines.
It has been in operational service with the airline since its initial delivery from the factory in September 2019.
ETOPS (Extended-range Twin-engine Operational Performance Standards) refers to regulations and procedures that allow twin-engine aircraft to fly long-distance routes over areas like oceans or remote regions. These requirements apply where the nearest suitable airport for an emergency landing is farther away than usual.
It ensures that twin-engine aircraft, like Airbus A320, to fly routes previously restricted to three- or four-engine planes due to safety concerns about engine failure.
