# Proposed AD 2000-NM-134-AD: Boeing Model 747 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-25-12
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 31, 2000, 65 FR 46672
- Comments due: September 14, 2000
- Became: [AD 2000-25-12](https://openairdocs.org/ad/2000-25-12)
- Docket: 2000-NM-134-AD
- FR document: 00-19267
- Official PDF: https://openairdocs.org/files/sha256/2b/67/2b678be98e166bf97c1fd342970b25a8ecdd83f2cc093706c501deced135d962 (from https://www.govinfo.gov/content/pkg/FR-2000-07-31/pdf/00-19267.pdf)
- Federal Register: https://www.federalregister.gov/documents/2000/07/31/00-19267/airworthiness-directives-boeing-model-747-series-airplanes
- Page: https://openairdocs.org/proposed/2000-NM-134-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Boeing Model 747 series airplanes. This proposal would require inspections to detect cracking of the front spar web of the wing, and corrective action, if necessary. This action is necessary to detect and correct fatigue cracking of the front spar web, which could result in fuel leaking onto an engine and a consequent fire. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Jul 31, 2000: Notice of proposed rulemaking (NPRM). (first notice), FR document 00-19267, comments due Sep 14, 2000 (https://www.federalregister.gov/documents/2000/07/31/00-19267/airworthiness-directives-boeing-model-747-series-airplanes)

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