# Proposed AD FAA-2007-28924: Boeing Model 747-200C and -200F Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2007-26-03
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 16, 2007, 72 FR 45954
- Comments due: October 1, 2007
- Became: [AD 2007-26-03](https://openairdocs.org/ad/2007-26-03)
- Docket: FAA-2007-28924 (https://www.regulations.gov/docket/FAA-2007-28924, where comments are filed)
- Project: 2007-NM-051-AD
- FR document: E7-16117
- Official PDF: https://openairdocs.org/files/sha256/d8/8e/d88eaf7c8a934b4b153c1ba0979fbd2b7bd05e42628efe143bffa82a0ca6cb5e (from https://www.govinfo.gov/content/pkg/FR-2007-08-16/pdf/E7-16117.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/08/16/E7-16117/airworthiness-directives-boeing-model-747-200c-and--200f-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3002CC619CDCCEAD86257339005107E3.0001
- Page: https://openairdocs.org/proposed/FAA-2007-28924

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Boeing Model 747-200C and -200F series airplanes. This proposed AD would require, among other actions, installing mounting brackets, support angles, and moisture curtains in the main equipment center. This proposed AD results from reports of water contamination in the electrical/electronic units in the main equipment center. We are proposing this AD to prevent water contamination of the electrical/ electronic units, which could cause the electrical/electronic units to malfunction, and as a consequence, could adversely affect the airplane's continued safe flight.

## Notices in this docket

- Aug 16, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-16117, comments due Oct 1, 2007 (https://www.federalregister.gov/documents/2007/08/16/E7-16117/airworthiness-directives-boeing-model-747-200c-and--200f-series-airplanes)

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