78-23-03 SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (SNIAS): Amendment 39-3337. Applies to Model SA 316C and 319 Alouette III helicopters, certificated in all categories, that do not incorporate SNIAS Modification AMS 07.2109 (covered in Service Bulletin No. 65.108).
Compliance is required as indicated, unless already accomplished.
To prevent a possible loss of helicopter control, accomplish the following:
(a) Within the next 50 hours time in service after the effective date of this AD, and, thereafter, at intervals not to exceed 50 hours time in service since the previous inspection, inspect the left-hand and right-hand upper flight control bellcrack support attachment fittings, P/Ns 319A.84.10.118 and 319A.84.10.119, in accordance with Alouette SA316C and 319 Service Bulletin No. 05.57, dated September 29, 1975, or an FAA-approved equivalent (hereinafter referred to as Service Bulletin).
(b) If a crack is found during an inspection required by paragraph (a)of this AD, replace the affected part with a new fitting, P/N 319A.84.10.120 or 319A.84.10.121, as appropriate, in accordance with the Service Bulletin before further flight, except that the helicopter may be flown in accordance with FAR 21.197 and 21.199 to a base where the work can be performed.
(c) The inspections required by paragraph (a) of this AD may be discontinued upon the installation of new fittings, P/Ns 319A.84.10.120 and 319A.84.10.121, in accordance with the Service Bulletin.
This amendment becomes effective December 4, 1978.