Scot Thompson

Document ID: FAA-2011-0157-0003
Document Type: Public Submission
Agency: Federal Aviation Administration
Received Date: March 14 2011, at 12:00 AM Eastern Daylight Time
Date Posted: March 16 2011, at 12:00 AM Eastern Standard Time
Comment Start Date: March 8 2011, at 12:00 AM Eastern Standard Time
Comment Due Date: April 22 2011, at 11:59 PM Eastern Standard Time
Tracking Number: 80c06bc5
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This is comment on Rule

Airworthiness Directives: Various Transport Category Airplanes Equipped with Chemical Oxygen Generators Installed in a Lavatory

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As usual the FAA has written an AD as clear as mud. Under the Unsafe Condition paragraph (e) it is stated "that the current design of chemical oxygen generators in the lavatories presents a hazard..." The oxygen generators on most Part 25 aircraft are the same in the cabin as well as the lavatories, so why are the cabin oxygen generators not a "hazard" In Parts Installation paragraph (i) it is stated "no person may install a chemical oxygen generator in any lavatory on any affected airplane". This appears to contradict paragraph (e) and leads one to believe there is a problem with the design of the lavatory oxygen system, not the generator in and of it's self. Why is this now an issue?