‘Clear air’ turbulence on Hawaii-Philippines flight hurts 15 slightly

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It's called clear air turbulence — it can't be detected and it can cause havoc on a flight.

MANILA, Philippines  — Philippine Airlines says 15 passengers sustained minor injuries during turbulence on a flight from Hawaii to Manila. Medical and airline personnel helped them after the plane landed safely at Manila’s airport.

The airline said in a statement that Flight PR101 carrying 132 passengers left Honolulu at 12:06 p.m. Friday and the Airbus 340 experienced clear air turbulence en route. Such turbulence is not associated with clouds and cannot be detected visually or by conventional weather radar.

A DZBB radio reporter tweeted pictures of passengers in wheelchairs. One of them, identified as Abuena Castillo, held an ice pack on her head. She was quoted as saying that the plane suddenly fell and rose, throwing her off her seat.