# Proposed AD FAA-2005-21184: Boeing Model 747 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-16-06
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 12, 2005, 70 FR 24994
- Comments due: June 27, 2005
- Became: [AD 2005-16-06](https://openairdocs.org/ad/2005-16-06)
- Docket: FAA-2005-21184 (https://www.regulations.gov/docket/FAA-2005-21184, where comments are filed)
- Project: 2004-NM-111-AD
- FR document: 05-9469
- Official PDF: https://openairdocs.org/files/sha256/f7/e7/f7e7d160d227984ffd90db2672c1ec56f45c4a205af7322af3a7cd499bc6c903 (from https://www.govinfo.gov/content/pkg/FR-2005-05-12/pdf/05-9469.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/05/12/05-9469/airworthiness-directives-boeing-model-747-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/044566150BDEF8A186256FFF0057C8B1.0001
- Page: https://openairdocs.org/proposed/FAA-2005-21184

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 747 airplanes. This proposed AD would require modifying the inflation systems of the upper deck escape slides; single-piece off-wing escape ramps/slides; two-piece off-wing escape slides; and door 1, 2, 4, and 5 escape slides/rafts. This proposed AD is prompted by a report of 30- to 60-second delays in the inflation of escape slides/rafts. We are proposing this AD to prevent actuation delays in the inflation systems of the escape slides/rafts, which could result in delayed or failed deployment of escape slides/rafts during emergency evacuation of an airplane.

## Notices in this docket

- May 12, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-9469, comments due Jun 27, 2005 (https://www.federalregister.gov/documents/2005/05/12/05-9469/airworthiness-directives-boeing-model-747-airplanes)

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