# Proposed AD FAA-2023-0657: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2024-01-01
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 10, 2023, 88 FR 21120
- Comments due: May 25, 2023
- Became: [AD 2024-01-01](https://openairdocs.org/ad/2024-01-01)
- Docket: FAA-2023-0657 (https://www.regulations.gov/docket/FAA-2023-0657, where comments are filed)
- Project: AD-2022-01351-T
- FR document: 2023-07368
- Official PDF: https://openairdocs.org/files/sha256/fe/84/fe84944e2222a9ed90f5ab5761db979dfaa825669104e6cfebe598dfbf7f1c6d (from https://www.govinfo.gov/content/pkg/FR-2023-04-10/pdf/2023-07368.pdf)
- Federal Register: https://www.federalregister.gov/documents/2023/04/10/2023-07368/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2023-07368-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2023-0657

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This proposed AD was prompted by reports of undetected water leaks from the faucet control module (FCM) migrating below the passenger floor in multiple lavatory locations during flight, and into the electronic equipment bay(s). This proposed AD would require repetitive general visual inspections of the area under all lavatory washbasins for evidence of intermittent and active leaks at the FCM and applicable on- condition actions. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 10, 2023: Notice of proposed rulemaking (NPRM). (first notice), FR document 2023-07368, comments due May 25, 2023 (https://www.federalregister.gov/documents/2023/04/10/2023-07368/airworthiness-directives-the-boeing-company-airplanes)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.