airworthiness · Rule · Final rule. · Published 2019-07-23 · Effective 2019-08-27 · 84 FR 35285
Document
Document number
2019-15630
Federal Register citation
84 FR 35285
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2019-07-23
Effective date
2019-08-27
FAA docket
Docket No. FAA-2018-1081
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Trig Avionics Limited TT31, Avidyne Corporation AXP340, and BendixKing/Honeywell International KT74 Mode S transponders. This AD was prompted by the discovery that the retaining cam that engages in the mounting tray may not withstand g-forces experienced during an emergency landing. This AD requires one-time inspection of the transponder installation and, depending on the findings, removal of the affected transponder for modification. The FAA is issuing this AD to address the unsafe condition on these products.