# Proposed AD FAA-2022-0462: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-13-18
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 22, 2022, 87 FR 24073
- Comments due: June 6, 2022
- Became: [AD 2022-13-18](https://openairdocs.org/ad/2022-13-18)
- Docket: FAA-2022-0462 (https://www.regulations.gov/docket/FAA-2022-0462, where comments are filed)
- Project: MCAI-2021-00647-T
- FR document: 2022-08584
- Official PDF: https://openairdocs.org/files/sha256/07/ff/07ffe76cbfaf16c30a06d068825e1206fceada90015d38b53179671dc95c5f7b (from https://www.govinfo.gov/content/pkg/FR-2022-04-22/pdf/2022-08584.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/04/22/2022-08584/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-08584-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0462

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-700, 737-800, 747-400, 747-8, 767-400ER, and 777-200 airplanes. This proposed AD was prompted by a report that there is the potential for electrical current to pass through low pressure (LP) oxygen flex-hoses in the gaseous passenger oxygen system. This proposed AD would require replacing each conductive oxygen flex-hose installed on LP gaseous passenger oxygen systems with a serviceable non-conductive oxygen flex-hose. This proposed AD would also prohibit installation of a conductive oxygen flex-hose on LP gaseous passenger oxygen systems. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 22, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-08584, comments due Jun 6, 2022 (https://www.federalregister.gov/documents/2022/04/22/2022-08584/airworthiness-directives-the-boeing-company-airplanes)

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