# Airworthiness Directives; Lockheed Model L-1011-385 Series Airplanes
> **Rule** · Final rule. · Published 2000-10-20 · Effective 2000-11-24 · 65 FR 62994
## Document
- **Document number:** 00-26590
- **Category:** airworthiness
- **Manufacturer:** Lockheed Model L-1011-385 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 65 FR 62994
- **Publication date:** 2000-10-20
- **Effective date:** 2000-11-24
- **FAA docket:** Docket No. 98-NM-35-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to all Lockheed Model L-1011-385 series airplanes, that requires repetitive inspections to detect corrosion or fatigue cracking of certain structural elements of the airplane; corrective action, if necessary; and incorporation of certain structural modifications. This amendment is prompted by new recommendations related to incidents of fatigue cracking and corrosion in transport category airplanes that are approaching or have exceeded their economic design goal. The actions specified by this AD are intended to prevent corrosion or fatigue cracking of certain structural elements, which could result in reduced structural integrity of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2000/10/20/00-26590/airworthiness-directives-lockheed-model-l-1011-385-series-airplanes)
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