Airworthiness Directive · Amendment 39-16630 · Oxygen
Various Transport Category Airplanes Equipped With Chemical Oxygen Generators Installed in a Lavatory
Superseded. A later AD replaced this one: AD 2012-11-09. Comply with the one in force.
This AD applies to transport category airplanes, in passenger-carrying operations, that are equipped with any chemical oxygen generator installed in any lavatory, and are:
(1) Operating under 14 CFR part 121; or
(2) U.S.-registered and operating under 14 CFR part 129, with a maximum passenger capacity of 20 or greater.
This document publishes in the Federal Register an amendment adopting airworthiness directive (AD) 2011-04-09 that was sent previously by individual notices to the known U.S. owners and operators of affected airplanes identified above. This AD requires modifying the chemical oxygen generators in the lavatory. This AD was prompted by reports that the current design of these oxygen generators presents a hazard that could jeopardize flight safety. We are issuing this AD to eliminate this hazard.
Comply with this AD within the compliance times specified, unless already done.
Within 21 days after the effective date of this AD, do the actions specified in paragraphs (g)(1) and (g)(2) of this AD.
(1) Activate all chemical oxygen generators in the lavatories until the generator oxygen supply is expended. An operator may also remove the oxygen generator(s), in accordance with existing maintenance practice, in lieu of activating it.
(2) For each chemical oxygen generator, after the generator is expended (or removed), remove or re-stow the oxygen masks and close the mask dispenser door.
Note 1: Chemical oxygen generators are considered a hazardous material and subject to specific requirements under Title 49 CFR for shipping. Oxygen generators must be expended prior to disposal but are considered a hazardous waste; therefore, disposal must be in accordance with all Federal, State, and local regulations. Expended oxygen generators are forbidden in air transportation as cargo. For more information, contact 1-800-HMR-4922.
Note 2: Design approval holders are not expected to release service instructions for this action.
Notwithstanding the requirements of Sections 25.1447, 121.329, 121.333, and 129.13 of the Federal Aviation Regulations (14 CFR 25.1447, 121.329, 121.333, and 129.13), operators complying with this AD are authorized to operate affected airplanes until this action is superseded by other rulemaking.
(i) After the effective date of this AD, no person may install a chemical oxygen generator in any lavatory on any affected airplane.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Appliances and equipment
