# Proposed AD 2000-NM-29-AD: McDonnell Douglas Model MD-11 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-24-10
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 27, 2000, 65 FR 46204
- Comments due: September 11, 2000
- Became: [AD 2000-24-10](https://openairdocs.org/ad/2000-24-10)
- Docket: 2000-NM-29-AD
- FR document: 00-18394
- Official PDF: https://openairdocs.org/files/sha256/9f/c4/9fc415277512cf29e7d4e3ee6ab71be6df41612c3ce8de51d99c4120740e377a (from https://www.govinfo.gov/content/pkg/FR-2000-07-27/pdf/00-18394.pdf)
- Federal Register: https://www.federalregister.gov/documents/2000/07/27/00-18394/airworthiness-directives-mcdonnell-douglas-model-md-11-series-airplanes
- Page: https://openairdocs.org/proposed/2000-NM-29-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model MD-11 series airplanes. This proposal would require relocating the B7- 28 bus located in the upper main circuit breaker in the rear cockpit observer's station from the lower to the upper terminals of the circuit breakers in Row P. This action is necessary to prevent insufficient clearance and contact between the B7- 28 bus and an adjacent panel, which could result in arcing damage, smoke, and/or fire in the upper main circuit breaker panel. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Jul 27, 2000: Notice of proposed rulemaking (NPRM). (first notice), FR document 00-18394, comments due Sep 11, 2000 (https://www.federalregister.gov/documents/2000/07/27/00-18394/airworthiness-directives-mcdonnell-douglas-model-md-11-series-airplanes)

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