| AD Number | 75-17-20 | Status | Active |
| Effective Date | August 19, 1975 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-2322 |
| Product Type | ["Aircraft"] | Product Subtype | ["Rotorcraft"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Airbus Helicopters |
| Model(s) | SA341G |
75-17-20 SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE: Amendment 39- 2322. Applies to Model SA-341G "Gazelle" helicopters, serial numbers 1299 and lower, certificated in all categories.
Compliance is required within the next 100 hours' time in service, unless already accomplished in accordance with SA-341 Service Bulletin No. 65.10.
To detect excessive elongation of main rotor blade torsion strip stacks in service, and prevent consequent loss of helicopter control, accomplish the following:
(a) Install three "tell-tale" devices on the main rotor hub in accordance with subparagraph 1C (1) of SA-341 Service Bulletin No. 65.10 dated February 27, 1975, or an equivalent approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region.
(b) Prior to first flight of the day, visually check "tell-tale" device for condition of the frangible screw. If the frangible screw is found broken, rectify "tell-tale" installation and replace associated torsion strip stack in accordance with subparagraph 1C (2) of SA-341 Service Bulletin No. 65.10, dated February 27, 1975, or an equivalent approved by the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region.
The check required by this AD may be performed by the pilot.
This amendment becomes effective August 19, 1975.