# Proposed AD 2000-NM-327-AD: Boeing Model 737-100 and -200 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2001-14-20
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 15, 2001, 66 FR 10390
- Comments due: April 2, 2001
- Became: [AD 2001-14-20](https://openairdocs.org/ad/2001-14-20)
- Docket: 2000-NM-327-AD
- FR document: 01-3858
- Official PDF: https://openairdocs.org/files/sha256/6d/14/6d14192a107d5da456fafbda547664a9c273da1f467f113686d52dde3089d649 (from https://www.govinfo.gov/content/pkg/FR-2001-02-15/pdf/01-3858.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/02/15/01-3858/airworthiness-directives-boeing-model-737-100-and--200-series-airplanes
- Page: https://openairdocs.org/proposed/2000-NM-327-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all Boeing Model 737-100 and -200 series airplanes. This proposal would require repetitive inspections to find fatigue cracking in the main deck floor beams located at certain body stations, and repair, if necessary. This proposal also provides for optional terminating action for the repetitive inspections. This action is necessary to prevent failure of the main deck floor beams at certain body stations due to fatigue cracking, which could result in rapid decompression and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Feb 15, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-3858, comments due Apr 2, 2001 (https://www.federalregister.gov/documents/2001/02/15/01-3858/airworthiness-directives-boeing-model-737-100-and--200-series-airplanes)

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