Flying in a closed airplane with an intact metal skin is usually not associated with lightning injury since the electricity flows around the occupants.
High risk exposures:
(1) flying in a cloth covered airframe (glider, ultra-light, etc)
(2) hang gliding
(3) parachuting
(4) flying a metal plane with the window open and an arm or hand exposed
(5) balloon
Situation: usually while traversing a thunderstorm, although lightning may occur under clear conditions
Evidence:
(1) skin arborization
(2) entrance and exit burns
(3) burns associated with metal objects or clothing fasteners
(4) wounds associated with arcing
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