According to Supriandi, the plane had likely experienced turbulence after flying spirally to avoid storm.
The plane has 155 passengers consisting of 138 adults, 16 children and an infant, aboard.
According to information collected by Antara, the AirAsia plane flight QZ 8501 departed from Surabayas Juanda airport at around 05:20 Western Indonesian Time (WIB).
The plane was scheduled to arrive in Singapore at 08:30 am local time. Surabayas airport traffic authorities said it lost contact with the plane at around 07:55 am local time.
(Translating and editing by Amie Fenia Arimbi/F001)
Editor: Priyambodo RH
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