81-02-08 LOCKHEED-CALIFORNIA: Amendment 39-4023. Applies to all Model L-1011 series airplanes certificated in all categories. Compliance required within 300 hours time-in-service after the effective date of this AD. To assure availability of emergency passenger oxygen, accomplish the following:
A. Replace all one-man fixed chemical oxygen generators, Scott Aviation P/N 801462-01 with Scott Aviation P/N 801462-04 oxygen generators, in accordance with a method approved by the Chief, Los Angeles Area Aircraft Certification Office. (NOTE: Accomplishment of Lockheed Service Bulletin 093-35-030, dated September 15, 1980, has been approved as a means of compliance with this requirement.)
B. Alternative means of compliance or other actions which provide an equivalent level of safety may be used when approved by the Chief, Los Angeles Area Aircraft Certification Office, FAA Northwest Region.
C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199to operate airplanes to a base in order to comply with the requirements of this AD.
This amendment becomes effective January 27, 1981.