AD 75-17-33

75-17-33 SIKORSKY: Amendment 39-2327 as amended by Amendment 39-2462. Applies to S-61L, S-61N, and S-61NM helicopters certificated in all categories equipped with sliding baggage door S6120-72601-1, including helicopters equipped with S6120-72615-1 and S6120-72615-2 track and fitting assemblies, or S6120-72615-5 and S6120-72615-2 track and fitting assemblies with S6120-72605-1 and S6120-72605-2 track assemblies or 61200-72539-041 and 61200-72539-042 track assemblies.

Compliance required on or before November 3, 1975, unless already accomplished.

(a) To prevent the loss of the baggage door in flight and possible damage to the helicopter rotors, accomplish the following:

Install baggage door retainers, P/N 61200-72538-101 and 61200-72538-102 or equivalent FAA approved parts in accordance with Sikorsky Service Bulletin No. 61B20-11B dated June 27, 1975 or later FAA approved revisions.

(b) To prevent door misalignment, which may contribute to door disengagement, accomplishthe following:

Install upper track stops, P/N S6120-72629-1 with angle P/N S6120-72629-3 and plate P/N S6120-72629-4 or equivalent FAA approved parts in accordance with Sikorsky Service Bulletin S61B20-11B dated June 27, 1975 or later FAA approved revision.

(c) To prevent possible loss of bearing cage, which may contribute to door disengagement, accomplish the following:

Install track end stops, P/N 61200-72381-101, 61200-72381-102, 61200-72381-103, 61200-72381-104, S6120-72618-8 and S6120-72618-10 stops or equivalent FAA approved parts in accordance with Sikorsky Service Bulletin No. 61B20-20 dated August 15, 1975 or later FAA approved revisions.

Include Sikorsky telegram SST6120CC036.1, dated October 2, 1975, as part of Sikorsky Service Bulletin No. S61B20-20.

(d) The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Sikorsky Aircraft, Stratford, Connecticut 06602. These documents may also be examined at the Office of Regional Counsel, New England Region, Federal Aviation Administration, 12 New England Executive Park, Burlington, Massachusetts 01803 and at FAA Headquarters, 800 Independence Avenue, S.W., Washington, D.C. A historical file on this AD which includes the incorporated material in full is maintained by the FAA at its headquarters in Washington, D.C., and at the New England Region Headquarters, Burlington, Massachusetts.

Amendment 39-2327 became effective August 20, 1975.

This amendment 39-2462 becomes effective upon publication in the Federal Register for all persons except those to whom it was made effective immediately by telegram dated October 3, 1975.