# Proposed AD FAA-2005-21968: Boeing Model 757-200, -200CB, and -300 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2006-22-01
- Products: Boeing
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period.
- Published: May 19, 2006, 71 FR 29092
- Comments due: June 13, 2006
- Became: [AD 2006-22-01](https://openairdocs.org/ad/2006-22-01)
- Docket: FAA-2005-21968 (https://www.regulations.gov/docket/FAA-2005-21968, where comments are filed)
- Project: 2005-NM-077-AD
- FR document: E6-7633
- Official PDF: https://openairdocs.org/files/sha256/00/82/00827b44dd84b81e1f60c7f142556003d0fdd34fc38fde5520ccaed1c0837fa7 (from https://www.govinfo.gov/content/pkg/FR-2006-05-19/pdf/E6-7633.pdf)
- Federal Register: https://www.federalregister.gov/documents/2006/05/19/E6-7633/airworthiness-directives-boeing-model-757-200--200cb-and--300-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/63ED6071DAAD9E8686257173005A02F2.0001
- Page: https://openairdocs.org/proposed/FAA-2005-21968

## Summary

The FAA is revising an earlier proposed airworthiness directive (AD) for certain Boeing Model 757-200, -200CB, and -300 series airplanes. The original NPRM would have required repetitive detailed inspections for proper functioning of the girt bar leaf springs for the escape slides to ensure the leaf springs retain the sliders and the required 0.37-inch minimum engagement between the sliders and floor fittings is achieved at passenger doors 1, 2, and 4, and corrective actions if necessary. The original NPRM resulted from a report that the escape slides failed to deploy correctly during an operator's tests of the escape slides. This action revises the original NPRM by stating that this proposed AD would not include procedures from the airplane maintenance manuals and component maintenance manuals that allow bending the girt bar retention springs. We are proposing this supplemental NPRM to prevent escape slides from disengaging from the airplane during deployment or in use, whichcould result in injuries to passengers or flightcrew.

## Notices in this docket

- Jul 27, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-14790, comments due Sep 12, 2005 (https://www.federalregister.gov/documents/2005/07/27/05-14790/airworthiness-directives-boeing-model-757-200--200cb-and--300-series-airplanes)
- May 19, 2006: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period., FR document E6-7633, comments due Jun 13, 2006 (https://www.federalregister.gov/documents/2006/05/19/E6-7633/airworthiness-directives-boeing-model-757-200--200cb-and--300-series-airplanes)

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