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Clock in Cockpit for IFR GRABCARD FAR 91.205(d)

Asked by: 2382 views
FAA Regulations, Instrument Rating

  1. Can I use clock in the Transponder If clock in the cockpit brakes?
  2. Can I use wrist watch  If clock in the cockpit brakes?
  3. Digital type clock installed in cockpit is also legit?

 

I ask this because the FAR 91.205(d) says

"A clock displaying hours, minutes, and seconds with a sweep-second pointer or digital presentation."

 

Actually I feel like it should be installed in cockpit not in hand and also needs authorization from FAA(I read somewhere but I forgot..)

 

Can you provide clear explanation and references? Thank you.

 

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1 Answers

  1. Best Answer


    John D Collins on Jun 18, 2020

    1. Can I use clock in the Transponder If clock in the cockpit brakes? Yes if it meets AC-94A
    2. Can I use wrist watch If clock in the cockpit brakes? No if it breaks before flight, but yes in an emergency.
    3. Digital type clock installed in cockpit is also legit? Yes if it meets AC-94A

    See AC-94A, here is an excerpt.

    5. EQUIPMENT. Digital clocks may be approved for installation in certificated aircraft as
    specified in § 91.205(a) in place of clocks with sweep-second hands.
    6. INSTALLATION CRITERIA.
    a. A display of hours, minutes, and seconds may appear simultaneously or be individually
    selected.
    b. The installation should be accomplished in accordance with the current edition of
    AC 43.13-2, Acceptable Methods, Techniques and Practices, Aircraft Alterations. In addition,
    the clock and airframe manufacturer’s instructions should be consulted.
    c. The clock function switch position identification and the digital readout should be
    readable in all lighting conditions from the pilot’s normal position.

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