# Airworthiness Directives; Lockheed Model 382, 382B, 382E, 382F, and 382G Series Airplanes
> **Rule** · Final rule; request for comments. · Published 2009-05-20 · Effective 2009-06-04 · 74 FR 23614
## Document
- **Document number:** E9-11590
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 74 FR 23614
- **Publication date:** 2009-05-20
- **Effective date:** 2009-06-04
- **FAA docket:** Docket No. FAA-2009-0462
## Abstract

We are adopting a new airworthiness directive (AD) for all Lockheed Model 382, 382B, 382E, 382F, and 382G series airplanes. This AD requires an inspection to identify discrepant barrel nuts in the upper wing joint, engine truss, and rear beam pylon support; and replacement of any discrepant barrel nut with a new barrel nut, if necessary. This AD results from a report of severe cracking of multiple barrel nuts in the wing station (WS) 220 upper wing joint found during scheduled maintenance. We are issuing this AD to prevent cracking of the barrel nuts in the upper wing joint, engine truss, and rear beam pylon support, which could result in reduced structural integrity of the affected part and consequent detachment of the wing or engine from the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/05/20/E9-11590/airworthiness-directives-lockheed-model-382-382b-382e-382f-and-382g-series-airplanes)
---
*AI Analytics · CC0 1.0*