# Airworthiness Directives; Raytheon Aircraft Company Model 390 Airplanes
> **Rule** · Final rule; request for comments. · Published 2006-02-02 · Effective 2006-02-02 · 71 FR 5581
## Document
- **Document number:** 06-921
- **Category:** airworthiness
- **Manufacturer:** Raytheon
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 71 FR 5581
- **Publication date:** 2006-02-02
- **Effective date:** 2006-02-02
- **FAA docket:** Docket No. FAA-2005-23221
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Raytheon Aircraft Company Model 390 airplanes. This AD contains the same information as emergency AD 2006-02-51 and publishes the action in the Federal Register. This AD requires you to visually inspect the hydraulic tube assembly (P/N 390-580035-0001 or P/N 390- 580035-0005) and the clamp (P/N MS21919WCJ6 or P/N MS21919WCJ7) (or FAA-approved equivalent part numbers), as specified in the service information; replace the clamp at each inspection; replace the hydraulic tube assembly immediately if any of the problems identified in the service bulletin are found; and report the results of each inspection or replacement to the FAA. This AD results from failure of the hydraulic tube assembly, which caused in-flight loss of hydraulic fluid. We are issuing this AD to prevent failure of the hydraulic tube assembly and consequent leaking of hydraulic fluid. This failure could result in loss of hydraulic system functions and risk of fire because of flammable fluid leakage in the engine nacelle and lead to loss of control of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/02/02/06-921/airworthiness-directives-raytheon-aircraft-company-model-390-airplanes)
---
*AI Analytics · CC0 1.0*