Airworthiness Directives; United Instruments, Inc. Series Altimeters
airworthiness · Rule · Final rule. · Published 2017-03-03 · Effective 2017-04-07 · 82 FR 12395
Document
Document number
2017-03488
Federal Register citation
82 FR 12395
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2017-03-03
Effective date
2017-04-07
FAA docket
Docket No. FAA-2016-9345
Abstract
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 the affected altimeters. We are issuing this AD to correct the unsafe condition on these products.