In the US, is it legal to cover up some of the required gyro instruments during flight under IFR in actual IMC?

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In the US, is it legal to cover up some of the required gyro instruments during flight under IFR in actual IMC?



The purpose being for "partial panel" practice.










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  • What makes you think it's illegal @quietflyer?
    – GdD
    1 hour ago










  • So the answer is yes, it is legal to cover up some of the gyro instruments during flight under IFR in actual IMC?
    – quiet flyer
    1 hour ago















up vote
4
down vote

favorite












In the US, is it legal to cover up some of the required gyro instruments during flight under IFR in actual IMC?



The purpose being for "partial panel" practice.










share|improve this question























  • What makes you think it's illegal @quietflyer?
    – GdD
    1 hour ago










  • So the answer is yes, it is legal to cover up some of the gyro instruments during flight under IFR in actual IMC?
    – quiet flyer
    1 hour ago













up vote
4
down vote

favorite









up vote
4
down vote

favorite











In the US, is it legal to cover up some of the required gyro instruments during flight under IFR in actual IMC?



The purpose being for "partial panel" practice.










share|improve this question















In the US, is it legal to cover up some of the required gyro instruments during flight under IFR in actual IMC?



The purpose being for "partial panel" practice.







faa-regulations air-traffic-control flight-training instrument-flight-rules






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edited 46 mins ago

























asked 1 hour ago









quiet flyer

58116




58116











  • What makes you think it's illegal @quietflyer?
    – GdD
    1 hour ago










  • So the answer is yes, it is legal to cover up some of the gyro instruments during flight under IFR in actual IMC?
    – quiet flyer
    1 hour ago

















  • What makes you think it's illegal @quietflyer?
    – GdD
    1 hour ago










  • So the answer is yes, it is legal to cover up some of the gyro instruments during flight under IFR in actual IMC?
    – quiet flyer
    1 hour ago
















What makes you think it's illegal @quietflyer?
– GdD
1 hour ago




What makes you think it's illegal @quietflyer?
– GdD
1 hour ago












So the answer is yes, it is legal to cover up some of the gyro instruments during flight under IFR in actual IMC?
– quiet flyer
1 hour ago





So the answer is yes, it is legal to cover up some of the gyro instruments during flight under IFR in actual IMC?
– quiet flyer
1 hour ago











2 Answers
2






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4
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To my knowledge there's nothing illegal about practicing partial panel in real IFR, however it's a spectacularly bad idea to do so. A failure of vacuum instruments in IMC is an emergency because you can easily lose orientation and dig a big hole in the ground. A safety pilot won't be able to help unless they have a separate set of instruments to rely on, and even then upset recovery in IMC is inherently less safe.



If you want to practice partial panel pleeeeease do so in VMC, with a safety pilot.






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    up vote
    2
    down vote













    14 CFR 91.205(a) states (emphasis added):




    (a) General. Except as provided in paragraphs (c)(3) and (e) of this section, no person may operate a powered civil aircraft with a standard category U.S. airworthiness certificate in any operation described in paragraphs (b) through (f) of this section unless that aircraft contains the instruments and equipment specified in those paragraphs (or FAA-approved equivalents) for that type of operation, and those instruments and items of equipment are in operable condition.




    So the question is: if an instrument is covered, then is it "in operable condition"?



    My interpretation would be no: if an instrument is covered, then you can't see what it says, so it's not in operable condition. That would mean that, if that instrument is required for flight, then flying with it covered is illegal.



    That said, someone might disagree and say that the instrument is in operable condition, because you can simply remove the cover in order to see what it says. I would disagree with that, because a covered instrument clearly does not provide the safety benefits that an uncovered instrument does.



    I did a search in the FAA's "Letter of Interpretation" database, and there didn't seem to be any letters about whether or not a covered-up instrument is "in operable condition". So it seems like this question hasn't been legally decided yet.






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      2 Answers
      2






      active

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      2 Answers
      2






      active

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      active

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      active

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      up vote
      4
      down vote













      To my knowledge there's nothing illegal about practicing partial panel in real IFR, however it's a spectacularly bad idea to do so. A failure of vacuum instruments in IMC is an emergency because you can easily lose orientation and dig a big hole in the ground. A safety pilot won't be able to help unless they have a separate set of instruments to rely on, and even then upset recovery in IMC is inherently less safe.



      If you want to practice partial panel pleeeeease do so in VMC, with a safety pilot.






      share|improve this answer
























        up vote
        4
        down vote













        To my knowledge there's nothing illegal about practicing partial panel in real IFR, however it's a spectacularly bad idea to do so. A failure of vacuum instruments in IMC is an emergency because you can easily lose orientation and dig a big hole in the ground. A safety pilot won't be able to help unless they have a separate set of instruments to rely on, and even then upset recovery in IMC is inherently less safe.



        If you want to practice partial panel pleeeeease do so in VMC, with a safety pilot.






        share|improve this answer






















          up vote
          4
          down vote










          up vote
          4
          down vote









          To my knowledge there's nothing illegal about practicing partial panel in real IFR, however it's a spectacularly bad idea to do so. A failure of vacuum instruments in IMC is an emergency because you can easily lose orientation and dig a big hole in the ground. A safety pilot won't be able to help unless they have a separate set of instruments to rely on, and even then upset recovery in IMC is inherently less safe.



          If you want to practice partial panel pleeeeease do so in VMC, with a safety pilot.






          share|improve this answer












          To my knowledge there's nothing illegal about practicing partial panel in real IFR, however it's a spectacularly bad idea to do so. A failure of vacuum instruments in IMC is an emergency because you can easily lose orientation and dig a big hole in the ground. A safety pilot won't be able to help unless they have a separate set of instruments to rely on, and even then upset recovery in IMC is inherently less safe.



          If you want to practice partial panel pleeeeease do so in VMC, with a safety pilot.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 1 hour ago









          GdD

          28.6k277122




          28.6k277122




















              up vote
              2
              down vote













              14 CFR 91.205(a) states (emphasis added):




              (a) General. Except as provided in paragraphs (c)(3) and (e) of this section, no person may operate a powered civil aircraft with a standard category U.S. airworthiness certificate in any operation described in paragraphs (b) through (f) of this section unless that aircraft contains the instruments and equipment specified in those paragraphs (or FAA-approved equivalents) for that type of operation, and those instruments and items of equipment are in operable condition.




              So the question is: if an instrument is covered, then is it "in operable condition"?



              My interpretation would be no: if an instrument is covered, then you can't see what it says, so it's not in operable condition. That would mean that, if that instrument is required for flight, then flying with it covered is illegal.



              That said, someone might disagree and say that the instrument is in operable condition, because you can simply remove the cover in order to see what it says. I would disagree with that, because a covered instrument clearly does not provide the safety benefits that an uncovered instrument does.



              I did a search in the FAA's "Letter of Interpretation" database, and there didn't seem to be any letters about whether or not a covered-up instrument is "in operable condition". So it seems like this question hasn't been legally decided yet.






              share|improve this answer
























                up vote
                2
                down vote













                14 CFR 91.205(a) states (emphasis added):




                (a) General. Except as provided in paragraphs (c)(3) and (e) of this section, no person may operate a powered civil aircraft with a standard category U.S. airworthiness certificate in any operation described in paragraphs (b) through (f) of this section unless that aircraft contains the instruments and equipment specified in those paragraphs (or FAA-approved equivalents) for that type of operation, and those instruments and items of equipment are in operable condition.




                So the question is: if an instrument is covered, then is it "in operable condition"?



                My interpretation would be no: if an instrument is covered, then you can't see what it says, so it's not in operable condition. That would mean that, if that instrument is required for flight, then flying with it covered is illegal.



                That said, someone might disagree and say that the instrument is in operable condition, because you can simply remove the cover in order to see what it says. I would disagree with that, because a covered instrument clearly does not provide the safety benefits that an uncovered instrument does.



                I did a search in the FAA's "Letter of Interpretation" database, and there didn't seem to be any letters about whether or not a covered-up instrument is "in operable condition". So it seems like this question hasn't been legally decided yet.






                share|improve this answer






















                  up vote
                  2
                  down vote










                  up vote
                  2
                  down vote









                  14 CFR 91.205(a) states (emphasis added):




                  (a) General. Except as provided in paragraphs (c)(3) and (e) of this section, no person may operate a powered civil aircraft with a standard category U.S. airworthiness certificate in any operation described in paragraphs (b) through (f) of this section unless that aircraft contains the instruments and equipment specified in those paragraphs (or FAA-approved equivalents) for that type of operation, and those instruments and items of equipment are in operable condition.




                  So the question is: if an instrument is covered, then is it "in operable condition"?



                  My interpretation would be no: if an instrument is covered, then you can't see what it says, so it's not in operable condition. That would mean that, if that instrument is required for flight, then flying with it covered is illegal.



                  That said, someone might disagree and say that the instrument is in operable condition, because you can simply remove the cover in order to see what it says. I would disagree with that, because a covered instrument clearly does not provide the safety benefits that an uncovered instrument does.



                  I did a search in the FAA's "Letter of Interpretation" database, and there didn't seem to be any letters about whether or not a covered-up instrument is "in operable condition". So it seems like this question hasn't been legally decided yet.






                  share|improve this answer












                  14 CFR 91.205(a) states (emphasis added):




                  (a) General. Except as provided in paragraphs (c)(3) and (e) of this section, no person may operate a powered civil aircraft with a standard category U.S. airworthiness certificate in any operation described in paragraphs (b) through (f) of this section unless that aircraft contains the instruments and equipment specified in those paragraphs (or FAA-approved equivalents) for that type of operation, and those instruments and items of equipment are in operable condition.




                  So the question is: if an instrument is covered, then is it "in operable condition"?



                  My interpretation would be no: if an instrument is covered, then you can't see what it says, so it's not in operable condition. That would mean that, if that instrument is required for flight, then flying with it covered is illegal.



                  That said, someone might disagree and say that the instrument is in operable condition, because you can simply remove the cover in order to see what it says. I would disagree with that, because a covered instrument clearly does not provide the safety benefits that an uncovered instrument does.



                  I did a search in the FAA's "Letter of Interpretation" database, and there didn't seem to be any letters about whether or not a covered-up instrument is "in operable condition". So it seems like this question hasn't been legally decided yet.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered 19 mins ago









                  Tanner Swett

                  1,176721




                  1,176721



























                       

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