# Proposed AD FAA-2019-1053: Robinson Helicopter Company Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2020-05-11
- Products: Robinson Helicopter
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 17, 2019, 84 FR 68817
- Comments due: January 31, 2020
- Became: [AD 2020-05-11](https://openairdocs.org/ad/2020-05-11)
- Docket: FAA-2019-1053 (https://www.regulations.gov/docket/FAA-2019-1053, where comments are filed)
- FR document: 2019-27117
- Official PDF: https://openairdocs.org/files/sha256/46/14/4614d35c4239ae2e24a2e87d050bc96c2c74dc8e8ee880912131779966623ae3 (from https://www.govinfo.gov/content/pkg/FR-2019-12-17/pdf/2019-27117.pdf)
- Federal Register: https://www.federalregister.gov/documents/2019/12/17/2019-27117/airworthiness-directives-robinson-helicopter-company-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1D19FABCFD3C7828862584D30054B69D.0001
- Page: https://openairdocs.org/proposed/FAA-2019-1053

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for Robinson Helicopter Company Model R44 and R44 II helicopters with an agricultural spray system installed by Supplemental Type Certificate (STC) SR00286BO (spray system). This spray system is also known as a Simplex Manufacturing Company (Simplex) Model 244 spray system. This proposed AD was prompted by a report of an in-flight failure of the spray system elbow pump fitting (pump fitting). This proposed AD would require repetitive inspections of the spray system pump fitting, corrective action if necessary, replacement of the spray system pump fitting, and installation of hose supports and a pump outlet cover. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Dec 17, 2019: Notice of proposed rulemaking (NPRM). (first notice), FR document 2019-27117, comments due Jan 31, 2020 (https://www.federalregister.gov/documents/2019/12/17/2019-27117/airworthiness-directives-robinson-helicopter-company-helicopters)

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