The family of a Wai­luku teenager is asking for the public’s help to find their daughter, who was last seen Thursday at Kahu­lui Airport when she failed to board a flight to return to a medical facility on the mainland.

Rachel Ann Dack, 17, has a potentially life-threatening medical condition and was carrying only a limited supply of her medication, a Maui County news release said. She is the daughter of county Planning Department Supervisor Jeffrey Dack.

She is described as 5 feet 4 inches tall and 185 pounds, with black hair. She was last seen wearing a black T-shirt, black pants, a belt and a white baseball cap with the phrase “I hate seagulls.”

Jeffrey Dack said his daughter is known to frequent the Kahu­lui area, Kihei and Haiku.

Anyone who sees Dack is asked to call 911 and notify police.