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AD/SA 315/4 - Main Rotor Blade Cuff to Spar Assembly
Eurocopter SA 315 (Lama) Series HelicoptEurocopter SA 315 (Lama) Series Helicopters
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Eurocopter SA 315 (Lama) Series Helicopters
| AD/SA 315/4 | Main Rotor Blade Cuff to Spar Assembly | 12/2006 |
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| Applicability: | Model SA 315 B helicopters, equipped with main rotor blade part number:3160S11-10000 all dash numbers, 3160S11-30000 all dash numbers, 3160S11-35000 all dash numbers, 3160S11-40000 all dash numbers, 3160S11-45000 all dash numbers, 3160S11-50000 all dash numbers, and 3160S11-55000 all dash numbers. |
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| Requirement: | Inspect the main rotor blade spar areas for cracks in accordance with paragraph 2.B. of Eurocopter Service Bulletin No. 05.39.Note: DGAC AD 1998-171-039(A) R2 refers. |
| Compliance: | 1. For blades which have accumulated less than 400 flight hours:Upon accumulating 400 flight hours.2. For blades which have accumulated more than 400 flight hours:And which have been previously checked in accordance with Eurocopter Service Telex No. 01-20 or 01-30, within 25 flight hours after the last check, unless already accomplished.3. For blades which have accumulated more than 400 flight hours:And which have not been previously checked in accordance with Eurocopter Service Telex No. 01-20 or 01-30, before further flight.4. Repeat inspection at intervals not to exceed 100 flight hours or 600 flight cycles, whichever occurs first.5. Accomplish inspection before further flight after a sudden occurrence of vibrations at 1 omega.6. Accomplish inspection on blades held as spares before installation on the helicopter. |
| This Airworthiness Directive becomes effective on 23 November 2006. |
| Background: | The DGAC received a report of the failure of a main rotor blade on a SA 315 B helicopter. |
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David Villiers
Delegate of the Civil Aviation Safety Authority
12 October 2006