# Proposed AD FAA-2016-6616: Rosemount Aerospace, Inc. Pitot Probes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-03-04
- Products: Rosemount Aerospace
- Product type: Appliance
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 11, 2016, 81 FR 29193
- Comments due: June 27, 2016
- Became: [AD 2018-03-04](https://openairdocs.org/ad/2018-03-04)
- Docket: FAA-2016-6616 (https://www.regulations.gov/docket/FAA-2016-6616, where comments are filed)
- Project: 2016-CE-004-AD
- FR document: 2016-10930
- Official PDF: https://openairdocs.org/files/sha256/61/18/6118edcff7d8126cadddcfbc102b8fd92c0773fe2fa53189a2e374e7eac745e6 (from https://www.govinfo.gov/content/pkg/FR-2016-05-11/pdf/2016-10930.pdf)
- Federal Register: https://www.federalregister.gov/documents/2016/05/11/2016-10930/airworthiness-directives-rosemount-aerospace-inc-pitot-probes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2730016E5EDA14C886257FB0004DDF48.0001
- Page: https://openairdocs.org/proposed/FAA-2016-6616

## Summary

We propose to adopt a new airworthiness directive (AD) for Rosemount Aerospace Model 851AK pitot probes that were repaired by CSI Aerospace, Inc. that are installed on airplanes. This proposed AD was prompted by a report that certain pitot probes are indicating the wrong airspeed during flight in icing conditions. This proposed AD would require inspecting the airplane to determine the number of affected pitot probes installed and replacing the affected pitot probes. We are proposing this AD to correct the unsafe condition on these products.

## Notices in this docket

- May 11, 2016: Notice of proposed rulemaking (NPRM). (first notice), FR document 2016-10930, comments due Jun 27, 2016 (https://www.federalregister.gov/documents/2016/05/11/2016-10930/airworthiness-directives-rosemount-aerospace-inc-pitot-probes)

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