# Proposed AD 2002-NM-19-AD: Boeing Model 727, 737-100, 737-200, and 737-200C Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2003-11-03
- Products: Boeing
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking; reopening of comment period.
- Published: January 3, 2003, 68 FR 311
- Comments due: February 7, 2003
- Became: [AD 2003-11-03](https://openairdocs.org/ad/2003-11-03)
- Docket: 2002-NM-19-AD
- FR document: 03-23
- Official PDF: https://openairdocs.org/files/sha256/37/0d/370dec635931669dceae2caf715f056853c3426739d3149c660d648c4c44748d (from https://www.govinfo.gov/content/pkg/FR-2003-01-03/pdf/03-23.pdf)
- Federal Register: https://www.federalregister.gov/documents/2003/01/03/03-23/airworthiness-directives-boeing-model-727-737-100-737-200-and-737-200c-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/30875D2BA3EDB5F886256CA3005AD29F.0001
- Page: https://openairdocs.org/proposed/2002-NM-19-AD

## Summary

This document revises an earlier proposed airworthiness directive (AD), applicable to certain Boeing Model 727, 737-100, 737-200, and 737-200C series airplanes. That proposed AD would have required a one-time inspection to determine the part number of hydraulic accumulators installed in various areas of the airplane, and follow-on corrective actions if necessary. This new action revises the proposed rule by adding an inspection of an additional area of the airplane, and follow-on corrective actions if necessary. This new action also clarifies what actions are necessary for accumulators with certain part numbers. This action is necessary to prevent high-velocity separation of a barrel, piston, or end cap from a hydraulic accumulator. Such separation could result in injury to personnel in the accumulator area; loss of cabin pressurization; loss of affected hydraulic systems; or damage to plumbing, electrical installations, or structural members. This action is intended to address the identified unsafe condition.

## Notices in this docket

- May 20, 2002: Notice of proposed rulemaking (NPRM). (first notice), FR document 02-12517, comments due Jul 5, 2002 (https://www.federalregister.gov/documents/2002/05/20/02-12517/airworthiness-directives-boeing-model-727-737-100-737-200-and-737-200c-series-airplanes)
- Jan 3, 2003: Supplemental notice of proposed rulemaking; reopening of comment period., FR document 03-23, comments due Feb 7, 2003 (https://www.federalregister.gov/documents/2003/01/03/03-23/airworthiness-directives-boeing-model-727-737-100-737-200-and-737-200c-series-airplanes)

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