AD Number: AD/S-PUMA/58 Swashplate Bearing Attaching Screws 7/2005 TX
Applicability: AS 332 L2 EURCOPTER Helicopters: Main rotor mast assemblies, all part numbers.
Requirement: 1. Perform a visual or a tactile check in order to make sure that all the screw heads are in place in compliance with the paragraph 2.B.2 of Eurocopter AS 332 L2 Alert Telex (TA) No 62.00.66 or later DGAC approved revisions.
2. If one or more than one screw heads are missing, then:
(a) Where the main rotor mast is installed, remove the main rotor mast assembly.
(b) Where the main rotor mast is held as spares, do not install the main rotor mast assembly.

Note: DGAC AD UF 2005-079 EASA reference No 2005-3936 dated 2 May 2005 refers.
Compliance: 1. Main rotor mast assembly having logged less than 750 flying hours since new or since last overhaul:
At the latest at 770 flying hours since new or since last overhaul.
Main rotor mast assembly having logged 750 flying hours or more since new or since last overhaul:
No later than 20 flying hours after the effective date of this AD.
Main rotor mast assemblies not installed and having logged more than 750 flying hours since new or since last overhaul:
Before installation in a helicopter.
2. (a) Before the next flight.
(b) From the effective date of this Directive.
This Airworthiness Directive becomes effective on 9 May 2005.
Background: Screw head loss from the main rotor mast could lead to loss of control of the
helicopter.

FMI: www.casa.gov.au