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SESK: Stuff Everyone Should Know · sesk.info/pilot-inoperative-placard

Flying without an MEL, how must you handle a nonrequired inoperative instrument left in the airplane?

Deactivate it and placard it "Inoperative."

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  1. Cover it with tape and fly as normal
  2. Deactivate it and placard it "Inoperative" ✔
  3. Report it to ATC before each takeoff

Why: Without an MEL, inoperative equipment that isn't required may be removed with the control placarded, or deactivated and placarded "Inoperative." A certificated pilot or mechanic must also decide it poses no hazard.

Huh, didn't know that: If deactivating the item takes maintenance, it must be done and recorded under Part 43.

The dad joke
I put an 'Inoperative' sticker on my alarm clock. My boss did not accept it as a placard.
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References

Answer: Deactivate it and placard it "Inoperative". Without an MEL, inoperative equipment that isn't required may be removed with the control placarded, or deactivated and placarded "Inoperative." A certificated pilot or mechanic must also decide it poses no hazard.

  1. 14 CFR 91.213 Inoperative instruments and equipment www.ecfr.gov/current/title-14/section-91.213
    Deactivated and placarded “Inoperative.”
    Checked 2026-10-09.

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