| A110-1 | Birds; coyotes and deer and other wildlife and migratory waterfowl. On and in vicinity of airport. |
| A110-2 | Uncontrolled vehicles on ramps north side of airport. |
| A110-3 | Runway 2/20 available to air carrier with more than 19 pax seats between runway 12/30 and taxiway A for taxiing only. Taxiways A, A-1, A-2, A-4 and taxiway C north of runway 12/30 avail to air carrier aircraft with more than 9 seats. |
| A110-4 | Taxiway foxtrot military use only. |
| A110-5 | No line of sight between intersecting runway ends. |
| A24 | Landing fee for aircraft 12500 lbs and over and all twin engine aircraft. |
| A26 | Airport rescue and fire fighting index C available 4 hours prior permission required contact 219-949-4922. |
| A57-12 | Runway 12 approach ratio 20:1 at displaced threshold. |
| A58-12 | Runway 12: 38 ft poles - lighted, 188 ft from runway end, 90 ft L of cl; trees, shrubs and railroad enbankment. |
| A81 | When air traffic control tower closed activate HIRL runway 12/30; MIRL runway 02/20, REIL runways 02, 12 and 20 and MALSR runway 30 - CTAF. |
