Airworthiness Directives; The Boeing Company Airplanes
airworthiness · Rule · Final rule; request for comments. · Published 2021-04-05 · Effective 2021-04-20 · 86 FR 17515
Document
Document number
2021-06896
Federal Register citation
86 FR 17515
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
The Boeing Company
Publication date
2021-04-05
Effective date
2021-04-20
FAA docket
Docket No. FAA-2021-0190
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-200 series airplanes. This AD was prompted by reports indicating that the pitot heat switch is not always set to ON, which could result in misleading air data. This AD requires replacement of pitot anti-icing system components, installation of a junction box and wiring provisions, repetitive testing of the anti- icing system, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.