# Proposed AD 2000-NM-149-AD: McDonnell Douglas Model DC-10 and MD-10 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-17-22
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 29, 2000, 65 FR 71074
- Comments due: January 16, 2001
- Became: [AD 2001-17-22](https://openairdocs.org/ad/2001-17-22)
- Docket: 2000-NM-149-AD
- FR document: 00-30445
- Official PDF: https://openairdocs.org/files/sha256/4e/ed/4eedc4175fa6a18af9b2284b8db6ee332e02546f4b8da870aaf3d27d86b7fdc0 (from https://www.govinfo.gov/content/pkg/FR-2000-11-29/pdf/00-30445.pdf)
- Federal Register: https://www.federalregister.gov/documents/2000/11/29/00-30445/airworthiness-directives-mcdonnell-douglas-model-dc-10-and-md-10-series-airplanes
- Page: https://openairdocs.org/proposed/2000-NM-149-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain McDonnell Douglas Model DC-10 and MD-10 series airplanes. This proposal would require an inspection of the one phase remote control circuit breakers (RCCB) in the main avionics compartment and center accessory compartment to determine their part numbers and serial numbers, and replacement of RCCB's with certain RCCB's, if necessary. This action is necessary to ensure that defective braze joints of certain latch assemblies of the RCCB are not installed on the airplane. Defective braze joints could fail and prevent the RCCB from tripping during an overload condition, which could result in a fire and smoke in certain wire bundles that are routed to and from the main avionics compartment or center accessory compartment. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Nov 29, 2000: Notice of proposed rulemaking (NPRM). (first notice), FR document 00-30445, comments due Jan 16, 2001 (https://www.federalregister.gov/documents/2000/11/29/00-30445/airworthiness-directives-mcdonnell-douglas-model-dc-10-and-md-10-series-airplanes)

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