Airworthiness Directives; Honeywell International, Inc. Global Navigation Satellite Sensor Units
airworthiness · Rule · Final rule; request for comments. · Published 2012-07-19 · Effective 2012-07-19 · 77 FR 42419
Document
Document number
2012-17592
Federal Register citation
77 FR 42419
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Publication date
2012-07-19
Effective date
2012-07-19
FAA docket
Docket No. FAA-2012-0758
Abstract
We are adopting a new airworthiness directive (AD) for certain aircraft equipped with Honeywell International, Inc. Model KGS200 Mercury\2\ wide area augmentation system (WAAS) global navigation satellite sensor units (GNSSU). This AD requires you cease all localizer performance (LP), localizer performance with vertical guidance (LPV), and satellite based augmentation system (SBAS) lateral navigation/vertical navigation (LNAV/VNAV) approaches until a software problem is corrected. This AD was prompted by a report and follow-up investigation of a software problem that occurred during flight test trials of SBAS-capable aircraft using a similar Honeywell global positioning system (GPS) sensor and the same software as the Model KGS200 Mercury\2\ GNSSU. A software problem occurred that could result in misleading information during LP, LPV, or SBAS LNAV/VNAV approaches. We are issuing this AD to correct the unsafe condition on these products.