Pilot of Navy airplane CN235 M. Naim holds a map to co-pilot Rahmad while flying over the Java sea during joint search operations of AirAsia flight QZ8501 December 29, 2014 in this photo taken by Antara Foto.[Photo/Agencies]

An Associated Press photographer flew in a C-130 transport carrier with Indonesia's Air Force for 10 hours Monday over a large section of the search area between Kalimantan and Belitung. The flight was bumpy and rainy at times. It flew low, easily spotting waves, ships and fishermen, but there was no sign of the plane.

The suspected crash caps an astonishingly tragic year for air travel in Southeast Asia, and Malaysia in particular. Malaysia-based AirAsia's loss comes on top of the mystery surround Malaysia Airlines Flight 370 in March with 239 people aboard, and the downing of Malaysia Airlines Flight 17 in July over Ukraine, which killed all 298 passengers and crew.

Nearly all the passengers and crew are Indonesians, who are frequent visitors to Singapore, particularly on holidays.

Ruth Natalia Puspitasari, who would have turned 26 on Monday, was among them. Her father, Suyanto, sat with his wife, who was puffy-eyed and coughing, near the family crisis center at Surabaya's airport.

"I don't want to experience the same thing with what was happened with Malaysia Airlines," he said as his wife wept. "It could be a long suffering."

Few believe this search will be as perplexing as the ongoing one for Flight 370, where what happened onboard remains a total mystery. Authorities suspect the plane was deliberately diverted by someone on board and ultimately lost in a remote area of the Indian Ocean. Flight 8501 vanished over a heavily traveled sea that is relatively shallow, with no sign of foul play.

The captain, Iryanto, who like many Indonesians uses a single name, had more than 20,000 flying hours, AirAsia said.

People who knew Iryanto recalled that he was an experienced military pilot, flying F-16 fighters before shifting to commercial aviation. His French co-pilot, Remi Plesel, had been in Indonesia three years and loved to fly, his sister, Renee, told France's RTL radio.

"He told me that things were going well, that he'd had a good Christmas. He was happy. The rains were starting," she said. "The weather was bad."