Period of Applicability
2026-01-05 13:18 - 2026-06-05 23:59
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Interpretation
A stack obstacle with unknown ASN is located at 42°23′26″N 071°03′54″W, approximately 1.9 NM west of BOS, with a top elevation of 550 ft MSL (500 ft AGL), and is lighted.
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Message
OBST STACK (ASN UNKNOWN) 422326N0710354W (1.9NM W BOS) 550FT (500FT AGL) LGTD
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