The mast’s bottom obstacle light at Mount William is not changing from white to red at night.

U7354/26

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OBSObstacle Lighting

2026-08-31 12:00 - 2026-11-30 18:00

Duration:LONG4 months

Period of Applicability

2026-08-31 12:00 - 2026-11-30 18:00

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Interpretation

The bottom obstacle light on the mast at Mount William, Stanley, is not changing from white to red at night. The mast is at 514200S 0575600W and is 1,478 ft AGL (1,500 ft AMSL).

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Raw NOTAM

U7354/26 NOTAMR U6799/26
Q) SAVF/QOLXX/IV/M  /AE/000/015/5142S05756W001
A) SFAL B) 2608311200 C) 2611301800
E) OBST LGT ON MAST PSN 514200S 0575600W (MOUNT WILLIAM, STANLEY)
HGT 1478FT AGL, 1500FT AMSL. BOTTOM LIGHT AT NIGHT IS NOT CHANGING
TO RED FM WHITE.

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