Summary
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 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. We are issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2018-0961
Document Number
2019-10657
Type
Rule
Publication Date
May 22, 2019
Effective Date
June 26, 2019
Affected Manufacturer
The Boeing Company
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2018-0961
Topics
Official Documents
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