# Proposed AD FAA-2024-0762: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2024-25-09
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 25, 2024, 89 FR 20565
- Comments due: May 9, 2024
- Became: [AD 2024-25-09](https://openairdocs.org/ad/2024-25-09)
- Docket: FAA-2024-0762 (https://www.regulations.gov/docket/FAA-2024-0762, where comments are filed)
- Project: AD-2023-01194-T
- FR document: 2024-06129
- Official PDF: https://openairdocs.org/files/sha256/02/c9/02c94b0fca58ca5c66a96d7c99f51e12fcefbb74f1a6116784c72731d64fef1b (from https://www.govinfo.gov/content/pkg/FR-2024-03-25/pdf/2024-06129.pdf)
- Federal Register: https://www.federalregister.gov/documents/2024/03/25/2024-06129/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2024-06129-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2024-0762

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 757 airplanes. This proposed AD was prompted by reports of several occurrences of a power transfer unit (PTU) control valve that failed to open when commanded. This proposed AD would require installing new relays and changing certain wire bundles leading to the PTU control valve. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Mar 25, 2024: Notice of proposed rulemaking (NPRM). (first notice), FR document 2024-06129, comments due May 9, 2024 (https://www.federalregister.gov/documents/2024/03/25/2024-06129/airworthiness-directives-the-boeing-company-airplanes)

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