AD 85-26-03

85-26-03 SCOTT AVIATION: Amendment 39-5182. Applies to Scott Aviation oxygen connectors, Part Numbers 289-56 and 289-56-1.

NOTE: The constant-flow oxygen masks to which the above connectors might be fitted include, but are not necessarily limited to, the following Scott Part Numbers:

289-127 289-127-2 289-127-4 289-128 289-128-2 289-360 289-395 289-701-23 289-701-24 289-701-223 289-601-6 289-601-13 289-601-17 289-601-206 289-601-213 289-601-217.

Compliance is required within thirty (30) days after the effective date of this AD, unless previously accomplished.

To prevent the blockage of oxygen flow due to incompletely drilled oxygen connectors, accomplish the following:

A. Inspect the oxygen mask connectors in accordance with Scott Aviation Service Bulletin 289-35-10 dated May 27, 1985. Improperly drilled connectors must be replaced prior to return to service.

B. Alternate means of compliance which provide an acceptable level ofsafety may be used when approved by the Manager, Western Aircraft Certification Office, FAA, Northwest Mountain Region.

All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Scott Aviation, 123 East Montecito Avenue, Sierra Madre, California 91024. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, C-68966, Seattle, Washington, or at the Western Aircraft Certification Office, 15000 Aviation Boulevard, Hawthorne, California.

This amendment becomes effective on December 30, 1985.