On June 3, 2019, an Indian military transport plane crashed while trying to land in Assam, a state in India's northeast. The plane, an Antonov An-32, had left the same airport that morning and was on its way back down when it went down. All 13 people aboard died: 8 crew members and 5 passengers, according to India's Press Information Bureau.

The An-32 is an older cargo plane, originally built by the Soviet Union decades ago. India's air force has used it for a long time to carry supplies and personnel across the country — especially in the northeast, where mountains and difficult terrain make regular roads less practical. The airport where this happened, Jorhat, serves as a main hub for flying supplies into remote areas of Arunachal Pradesh and nearby regions.

Flying in the northeast is difficult. Mountains create sudden and unpredictable changes in wind and weather. The constant moisture in the air can damage electronics and aircraft parts. The radar systems that help planes navigate safely don't work well over the hills and valleys. The Indian Air Force has been trying to upgrade and repair these aging An-32 planes to keep them flying longer, but that upgrade work was already slowing down. Since Russia's invasion of Ukraine in 2022 disrupted Ukrainian factories, the situation got worse.

According to reports, the plane crashed as it was coming in to land. Since it took off from and crashed at the same airport, pilots likely didn't get lost during the flight. Instead, something went wrong during takeoff or landing — perhaps a mechanical problem, or a decision made in the final moments.

This was not India's first crash in this region. In June 2016, a similar An-32 disappeared over the mountains in Arunachal Pradesh. It took months to find the wreckage in the thick jungle. After that crash, experts called for the air force to put better emergency location devices on all planes and to improve how flights are planned over areas with little or no mapping. Whether these changes were made before the 2019 crash is unclear.

When military planes crash, the air force opens a formal investigation. But in India, as in most countries, the detailed findings stay secret for security reasons. This means the public rarely learns exactly what caused an accident or what lessons the military drew from it.

There is a bigger picture to consider. These cargo planes do not just move supplies; they can rapidly move troops if conflict breaks out along India's border with China. Every plane lost means fewer aircraft available to respond to an emergency — and the northeast is a critical strategic region. India is slowly replacing these old An-32 planes with newer models, but that process is moving slowly. For years to come, the older, aging planes will still be flying these dangerous routes.