# Proposed AD FAA-2004-19050: Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and -145 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Comment period closed
- Products: Embraer
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 9, 2004, 69 FR 54596
- Comments due: October 12, 2004
- Docket: FAA-2004-19050 (https://www.regulations.gov/docket/FAA-2004-19050, where comments are filed)
- Project: 2004-NM-139-AD
- FR document: 04-20402
- Official PDF: https://openairdocs.org/files/sha256/52/0b/520b12cdc631a30cf7061a08f1aa91e3e16e91cb873fa4f88e7b96541407ccc6 (from https://www.govinfo.gov/content/pkg/FR-2004-09-09/pdf/04-20402.pdf)
- Federal Register: https://www.federalregister.gov/documents/2004/09/09/04-20402/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-135-and--145-series
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4E6F667D0CC1616386256F0A004A9B2D.0001
- Page: https://openairdocs.org/proposed/FAA-2004-19050

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all EMBRAER Model EMB-135 and -145 series airplanes. This proposed AD would require a one-time inspection of each passenger service unit (PSU) to determine the serial number of the printed circuit board (PCB) installed in each PSU, replacement of the PCB if necessary, related investigative actions, and other specified actions. This proposed AD is prompted by reports that PSUs on two airplanes emitted smoke. We are proposing this AD to prevent failure of a PSU, which could result in smoke or fire in the airplane's passenger cabin.

## Notices in this docket

- Sep 9, 2004: Notice of proposed rulemaking (NPRM). (first notice), FR document 04-20402, comments due Oct 12, 2004 (https://www.federalregister.gov/documents/2004/09/09/04-20402/airworthiness-directives-empresa-brasileira-de-aeronautica-sa-embraer-model-emb-135-and--145-series)

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