Altimeters and other Altimetry devices installed in aircraft operating under Instrument Flight Rules, or under visual flight rules in Class B Airspace shall be calibrated at intervals not exceeding 24 months, to the standard outlined in
Appendix B of Chapter 571 of the Airworthiness Manual.
(amended 1998/09/01; previous version)
Information Note:
For the purpose of this section, the term "other altimetry devices" includes any air data computer, or other barometric device, providing a flight crew station, or an auto pilot, or automatic pressure altitude reporting system with altitude data derived from static pressure.