Designed and made by a pilot for a pilot. These INOP / INOPERATIVE cockpit placards provide a clear and professional way to mark instruments, switches, or avionics that are temporarily out of service.

Under FAA regulation 14 CFR 91.213, when certain equipment becomes inoperative but the aircraft is still legal to fly, the item must be deactivated and placarded “INOPERATIVE.” This prevents the pilot—or anyone else flying the aircraft—from attempting to use equipment that is not functioning. While this regulation applies to certified aircraft, experimental aircraft commonly use the same placarding practice for clarity and safety.

Instead of masking tape or handwritten notes, these placards provide a clean cockpit solution that clearly communicates when equipment should not be used.

Each placard is meticulously 3D printed from multiple layers of thermoplastic, creating a rugged background with recessed lettering in a contrasting color for clear, immediate readability.

Because INOP markings are typically temporary, these placards are backed with 3M 9415PC repositionable adhesive, allowing them to be applied, removed, and repositioned without damaging instrument surfaces.

Available individually or in a value 3-pack for maintenance spares.

Size: (2.5” × 1.1”)

Available in black or yellow caution-style backgrounds.

Thank you to our customers—you are our heroes!

Note: The photos shown here are taken before the final urethane encapsulation step. Each placard is encapsulated during production after purchase to provide its final protective finish and durability.