Copyright © 2012 Boeing. All rights reserved.Industry Meeting onCOG in LavatoryBert BaileyMarch 7, 2012| 1Payloads EngineeringCopyright © 2012 Boeing. All rights reserved.Chemical Oxygen Generator - COG| 2Copyright © 2012 Boeing. All rights reserved.COG Viewed from Inside a Lavatory| 3Copyright © 2012 Boeing. All rights reserved.FAA Major Releases| 41Original Airworthiness DirectiveAD-2011-04-09March 20112Special Federal Aviation RegulationSFAR-111March 20113ARC Final ReportAugust 20114FAA Policy StatementPS-ANM-25-04November 20115NPRMNPRM 2012-NM-004-ADFebruary 20126Final ADApril 2012Copyright © 2012 Boeing. All rights reserved.Airworthiness Directive 2011-04-09The SSI-AD was released on February 9, 2011 with a 21 day compliance time.It was effective for airlines operating under CFR part 121 or U.S. registeredaircraft operating under CFR part 129 with over 20 seat capacity.The action required the deactivation or removal of the chemical oxygengenerator installed in each of the lavatory modules.After completion of modification the pilot of that aircraft was to be notified thatthe lavatory oxygen was inactive.Does not include freighters, business jets, commercial – military derivatives orflight test aircraft.This SSI-AD did not require a change to the design of original equipmentmanufactures .| 5Copyright © 2012 Boeing. All rights reserved.Airworthiness Directive 2011-04-09The AD 2011-04-09 was released on March 7 and becomes effective on March14, 2011 with a 21 day compliance time.It was effective for airlines operating under CFR part 121 or U.S. registeredaircraft operating under CFR part 129 with over 20 seat capacity.Does not include freighters, business jets, commercial – military derivatives orflight test aircraft.The action required the deactivation or removal of the chemical oxygengenerator installed in each of the lavatory modules.This SSI-AD did not require a change to the design of original equipmentmanufactures .| 6Copyright © 2012 Boeing. All rights reserved.Special Federal Aviation RegulationSFAR - 111SFAR-111 was released on March 8, 2011 and was effective immediately andremains so until further notice.Applicability of SFAR-111–Airlines operating under CFR part 121 or–U.S. registered aircraft operating under CFR part 129 with over 20 seat capacity.–Holder of production certificates–Applicants for airworthiness certificates–Applicants for type certificatesPersons listed above may operate and addaircraft into operations that havedisabled lavatory oxygen in accordance with AD 2011-04-09| 7Copyright © 2012 Boeing. All rights reserved.2011 Event Time Flow| 8JanFebMarAprMayJunJulAugSepKick offmeetingSSI AD PrepSSI ADReleased30 DayComplianceCompleteFAA Forms ARC to DevelopSecurityOxygen RequirementARC FinalReport toFAA WDC2011FAA ReleasedPublic VersionAD 2011-04-09FAASF AR-1111Copyright © 2012 Boeing. All rights reserved.Event Time Flow| 9OctNovDecJanFebMarApr201320142012New FinalRule??FAA CommentResponseNPRM of New ADFAA ReleasePolicy MemoImplementationComplete Apr2014Copyright © 2012 Boeing. All rights reserved.Observations of NPRM1)Through out the ARC process the compliance time hadbeen stated many times as being 4 years with a startingpoint second half of 2011, now 2 years is stated.2)Why a new AD instead of a final rule3)This proposed AD would retain the requirements of AD2011-04-09 which would be in conflict of reinstallingoxygen into the lavatories| 10