# Proposed AD 2002-NM-101-AD: Boeing Model 737-600, -700, 700C, -800, and -900 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2004-07-10
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 31, 2003, 68 FR 75469
- Comments due: February 17, 2004
- Became: [AD 2004-07-10](https://openairdocs.org/ad/2004-07-10)
- Docket: 2002-NM-101-AD
- FR document: 03-32134
- Official PDF: https://openairdocs.org/files/sha256/7a/eb/7aeba1f40bd61e1909242871c3520509fa8433e54c4494b4c5b3726c5d5086af (from https://www.govinfo.gov/content/pkg/FR-2003-12-31/pdf/03-32134.pdf)
- Federal Register: https://www.federalregister.gov/documents/2003/12/31/03-32134/airworthiness-directives-boeing-model-737-600--700-700c--800-and--900-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/81FCA165239CEA9486256E0D005CCD87.0001
- Page: https://openairdocs.org/proposed/2002-NM-101-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Boeing Model 737-600, -700, 700C, -800, and -900 series airplanes. This proposal would require replacement of the proximity switch electronics unit with a new, improved unit. This action is necessary to prevent a malfunction of the aural warning for the landing gear, leading the crew to open the circuit breaker for the aural warning horn which stops the operation of other aural warnings of malfunctions in other systems and, thus, could jeopardize a safe flight and landing. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Dec 31, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-32134, comments due Feb 17, 2004 (https://www.federalregister.gov/documents/2003/12/31/03-32134/airworthiness-directives-boeing-model-737-600--700-700c--800-and--900-series-airplanes)

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