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FAA cycle 29 Oct 2026 (upcoming) · updated
Troy, MT · Upcoming 29 Oct 2026 cycle

57S

Troy
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No upcoming changes at 57SOn 29 Oct 2026 · current data stays the same

History since Aug 2024

▶Effective 25 Dec 2025FYI 1
Airport
Airport phone number changed to 406-334-7038
▶Effective 28 Nov 2024FYI 14
Airport
Airframe repair: none → none; bottled oxygen: none → none; bulk oxygen: none → none; engine repair: none → none
Airport
Airport phone number changed to 406-334-7037
Remark
Remark updated: +5 FT FENCE 13 FT FM RWY END BOTH SIDES.
FAA text
+5 FT FENCE 13 FT FM RWY END BOTH SIDES.
Remark
Remark updated: +5-80 FT TREES WI PRI SFC BGN 25-200 FT FT FM RWY END BOTH SIDES.
FAA text
+5-80 FT TREES WI PRI SFC BGN 25-200 FT FT FM RWY END BOTH SIDES.
Remark
Remark updated: Controlling obstacle exceeds a 45-degree slope; approach slope is 16:1 from the displaced threshold.
FAA text
CTLG OBSTN EXCEEDS A 45 DEG SLP. APCH SLP 16:1 FM DTHR.
Remark
Remark updated: CRACKS, WEEDS, BROKEN ASPH.
FAA text
CRACKS, WEEDS, BROKEN ASPH.
Remark
Remark updated: Displaced threshold is marked with white arrows.
FAA text
DTHR MKD WITH WHITE ARROWS.
Remark
Remark updated: In winter, call 406-295-4693.
FAA text
WINTER - 406-295-4693.
Remark
Remark updated: LGTD HELI ADJ TO SEGMENTED CIRCLE.
FAA text
LGTD HELI ADJ TO SEGMENTED CIRCLE.
Remark
Remark updated: Lincoln County.
FAA text
LINCOLN COUNTY.
Remark
Remark updated: Pedestrian walking trail in vicinity of movement area.
FAA text
PEDESTRIAN WALKING TRAIL INVOF MOV AREA.
Remark
Remark updated: Snow is not removed and airport surface conditions are not monitored.
FAA text
NO SNOW REMOVAL. ARPT SFC COND UNMON.
Runway
Runway 14: controlling obstacle changed (now 80 ft tall, 200 ft from threshold, 0 ft either side of centerline, clearance slope 0:1)
Runway
Runway 32: controlling obstacle changed (now 69 ft tall, 445 ft from threshold, 0 ft off centerline, clearance slope 3:1)

Data: history · built 09 Oct 2026 1931Z

FAA cycle 29 Oct 2026 (upcoming) · updated . Not for navigation. Always use official FAA publications, NOTAMs and a proper preflight briefing. Amend is independent and not affiliated with the FAA. Data: FAA NASR and d-TPP. How it works · Status · Changelog · Privacy · Terms · Report a problem · Source