VFR
FAR 91.413 states that no person may use an ATC transponder that is specified in 91.215(a), 121.345(c), or 135.143(c) of this chapter unless, within the preceding 24 calendar months, the ATC transponder has been tested and inspected and found to comply with Appendix F of part 43 of this chapter.
IFR
FAR 91.411 states that no person may operate an aircraft in controlled airspace under IFR unless within the preceding 24 calendar months, each static pressure system, each altimeter instrument, and each automatic pressure altitude reporting system has been tested and inspected and found to comply with appendices E and F of part 43 of this chapter.
Are you down for maintenance? Have your maintenance provider contact us.
We can coordinate with them, saving you time and money.
We are mobile and state of the art to quickly and efficiently certify your Transponder, Altimeter and Pitot-Static system at your location. Including RVSM.