AD 2017-04-06
Effective 04/07/2017 · Published 03/03/2017
Airworthiness Directives; United Instruments, Inc. Series Altimeters
Summary
We are adopting a new airworthiness directive (AD) for certain United Instruments, Inc. 5934 series altimeters that were manufactured between January 2015 and February 2016 and installed in airplanes and helicopters. This AD was prompted by reports of certain altimeters displaying higher than actual altitude due to a slow diaphragm leak, which would affect the accuracy of the altimeters. This AD requires replacing t…