# Proposed AD FAA-2014-0285: Honeywell International Inc. Air Data Pressure Transducers

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2012-26-15 R1
- Products: Honeywell International
- Product type: Appliance
- Action: Proposed rule; rescission.
- Published: May 28, 2014, 79 FR 30498
- Comments due: July 14, 2014
- Became: [AD 2012-26-15 R1](https://openairdocs.org/ad/2012-26-15-R1)
- Docket: FAA-2014-0285 (https://www.regulations.gov/docket/FAA-2014-0285, where comments are filed)
- Project: 2014-NM-035-AD
- FR document: 2014-12256
- Official PDF: https://openairdocs.org/files/sha256/6d/31/6d312f5f2b4b59f001a0650c113da1aff43c882495f6c614c16808b6a2e56417 (from https://www.govinfo.gov/content/pkg/FR-2014-05-28/pdf/2014-12256.pdf)
- Federal Register: https://www.federalregister.gov/documents/2014/05/28/2014-12256/airworthiness-directives-honeywell-international-inc-air-data-pressure-transducers
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C39E15880BD9489086257CE60047603C.0001
- Page: https://openairdocs.org/proposed/FAA-2014-0285

## Summary

We propose to rescind airworthiness directive (AD) 2012-26-15, which applies to certain Honeywell International Inc. air data pressure transducers as installed on various aircraft. AD 2012-26-15 requires doing various tests or checks of equipment having certain air data pressure transducers, removing equipment if necessary, and reporting the results of the tests or checks. As an option to the tests or checks, AD 2012-26-15 allows removal of affected equipment having certain air data pressure transducers. We issued AD 2012-26-15 to detect and correct inaccuracies of the pressure sensors, which could result in altitude, computed airspeed, true airspeed, and Mach computation errors. AD 2012-26-15 reported that these errors could reduce the ability of the flightcrew to maintain the safe flight of the aircraft and could result in consequent loss of control of the aircraft. Since we issued AD 2012-26-15, we have received new data indicating that the safety risk is lower than originally estimated.

## Notices in this docket

- May 28, 2014: Proposed rule; rescission. (first notice), FR document 2014-12256, comments due Jul 14, 2014 (https://www.federalregister.gov/documents/2014/05/28/2014-12256/airworthiness-directives-honeywell-international-inc-air-data-pressure-transducers)

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