4I3 NOTAMs

Active notices for Knox County (4I3), Mount Vernon, OH. 2 in force, as of 3 Nov 2026 0138Z. · Open on the map

All of Knox County — runways, frequencies, charts and live weather

Live from the FAA NOTAM Management Service · updated 1 min ago

Obstacles 2

Tower lights — unserviceable

Tower lights are out of service: 1639.8 ft MSL (259.8 ft AGL), 5.1 NM northwest of 4I3, at 402240.30N0823701.20W (ASR 1203527).

FAA text

OBST TOWER LGT (ASR 1203527) 402240.30N0823701.20W (5.1NM NW 4I3) 1639.8FT (259.8FT AGL) U/S

09/001Active · expires in 28d

Tower lights — unserviceable

Tower lights are out of service: 1391 ft MSL (254 ft AGL), 3 NM southwest of 4I3, at 401747.00N0823434.50W (ASR 1326675).

FAA text

OBST TOWER LGT (ASR 1326675) 401747.00N0823434.50W (3NM SW 4I3) 1391FT (254FT AGL) U/S

10/004Active · expires in 38d

All 2 active NOTAMs every severity, with windows and raw text

Obstacles · 2 active

Tower lights — unserviceable

Medium

From 1 Sep 2026 1444Z to 30 Nov 2026 1544Z · NOTAM 09/001

OBST TOWER LGT (ASR 1203527) 402240.30N0823701.20W (5.1NM NW 4I3) 1639.8FT (259.8FT AGL) U/S

!4I3 09/001 4I3 OBST TOWER LGT (ASR 1203527) 402240.30N0823701.20W (5.1NM NW 4I3) 1639.8FT (259.8FT AGL) U/S 2609011444-2611301544

Tower lights — unserviceable

Medium

From 27 Oct 2026 0357Z to 11 Dec 2026 0957Z · NOTAM 10/004

OBST TOWER LGT (ASR 1326675) 401747.00N0823434.50W (3NM SW 4I3) 1391FT (254FT AGL) U/S

!4I3 10/004 4I3 OBST TOWER LGT (ASR 1326675) 401747.00N0823434.50W (3NM SW 4I3) 1391FT (254FT AGL) U/S 2610270357-2612110957

NOTAMs are shown for planning. Always confirm with an official preflight briefing.

Frequently asked

Are there any NOTAMs at 4I3 right now?

Knox County has 2 active NOTAMs.

What is a NOTAM?

A Notice to Air Missions is a filed notice of a temporary condition a pilot needs to know about: a closed runway or taxiway, an out-of-service navaid or approach light, a crane near the approach path, or restricted airspace. Checking them is a required part of preflight action under 14 CFR 91.103.

What is an FDC NOTAM?

A Flight Data Center NOTAM is issued by the FAA rather than the airport, and covers regulatory matters: amendments to instrument approach procedures, changes to charted minimums, and temporary flight restrictions.

More about 4I3

NOTAMs from the FAA NOTAM service. Times are UTC (Zulu). For planning and education only — NOTAM review is required preflight action under 14 CFR 91.103 and must be done through an official source.

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