83-01-06 SWITLIK PARACHUTE COMPANY, INC.: Amendment 39-4541. Applies to inflatable life preservers and individual flotation devices, all models and part numbers, manufactured between June 1, 1981, and March 22, 1982.
Compliance required within the next 24 months after the effective date of this AD, unless previously accomplished.
To detect life preservers and flotation devices which have CO2 inflation valve manifolds that may operate improperly, and to correct the deficiency, perform the following in accordance with the Accomplishment Instructions, Paragraph 2, of Switlik Parachute Company, Inc., Service Bulletin 25-00-16, dated April 1, 1982:
1. Inspect the lower shoulder of the valve stem for a thin groove (1/16 to 1/32 inch wide). If the groove is not present, the air check valve is acceptable.
2. If the groove is present, the air check valve must be replaced and the faulty valve discarded.
3. After installation of the replacement air check valve, inflate the life vest cell and test the operation of the air check valve.
An equivalent method of compliance may be approved upon request to the Manager, New York Aircraft Certification Office, Federal Aviation Administration, 181 South Franklin Avenue, Room 202, Valley Stream, New York 11581.
Upon submission of substantiating data by an owner or operator through an FAA Maintenance Inspector, the compliance time of this AD may be adjusted upon request to the Manager, New York Aircraft Certification Office, Federal Aviation Administration, 181 South Franklin Avenue, Room 202, Valley Stream, New York 11581.
All persons affected by this directive who have not already received the manufacturer's service bulletin may obtain a copy upon request to Switlik Parachute Company, Inc., 1325 East State Street, Trenton, New Jersey 08607. This document may also be examined at Federal Aviation Administration, New England Region, Office of the Regional Counsel, 12 New England Executive Park,Burlington, Massachusetts 01803.
This amendment becomes effective February 28, 1983.