Instrument approaches legally require a certified and authorized altimeter setting; if one is unavailable (even from approved alternate sources), the approach is unusable per regulations (AIM ...
Mechanical altimeters, despite their ingenious design, are susceptible to various inherent errors stemming from their mechanical nature (e.g., wear, hysteresis) and installation. Accurate altimeter ...
French investigators are highlighting the importance of validating altimeter pressure settings, after a Hop Bombardier CRJ1000 descended below the glidepath on approach to Nantes. The aircraft (F-HMLD ...
French investigation authority BEA believes the prevalence of ILS approaches has obscured an underlying vulnerability of aircraft to the risk of terrain collision arising from incorrect altimeter ...