# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2022-08-11 · Effective 2022-09-15 · 87 FR 49509
## Document
- **Document number:** 2022-16607
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 87 FR 49509
- **Publication date:** 2022-08-11
- **Effective date:** 2022-09-15
- **FAA docket:** Docket No. FAA-2021-1005
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-400 series airplanes. This AD was prompted by a report that after a certain circuit breaker tripped, power to the two pitot-static (P/S) probe heaters on the right-hand side was lost, and the flightcrew discovered conflicting procedures in the flightcrew operations manual/quick reference handbook (FCOM/QRH). This AD requires revising the existing airplane flight manual (AFM) to incorporate procedures to be applied during P/S probe heater failure conditions. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/08/11/2022-16607/airworthiness-directives-the-boeing-company-airplanes)
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