# Proposed AD FAA-2017-1241: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2019-06-13
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 10, 2018, 83 FR 1198
- Comments due: February 26, 2018
- Became: [AD 2019-06-13](https://openairdocs.org/ad/2019-06-13)
- Docket: FAA-2017-1241 (https://www.regulations.gov/docket/FAA-2017-1241, where comments are filed)
- FR document: 2018-00107
- Official PDF: https://openairdocs.org/files/sha256/be/1b/be1ba86c9c3be4116a9110484295ea93d0770f3655088360d464f8c5e8e73f8a (from https://www.govinfo.gov/content/pkg/FR-2018-01-10/pdf/2018-00107.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/01/10/2018-00107/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/85F4BE14E8A02404862582110056319A.0001
- Page: https://openairdocs.org/proposed/FAA-2017-1241

## Summary

We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 787 series airplanes. This proposed AD was prompted by reports of hydraulic leakage caused by damage to aileron and elevator actuators from lightning strikes. This proposed AD would require a records check to inspect for certain parts, a detailed inspection of aileron and elevator power control units (PCUs), and applicable on-condition actions. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jan 10, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-00107, comments due Feb 26, 2018 (https://www.federalregister.gov/documents/2018/01/10/2018-00107/airworthiness-directives-the-boeing-company-airplanes)

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