AD/S-PUMA/32 - Connectral Electrical Connection Modules (Cth)

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES

Eurocopter AS 332 (Super Puma) Series Helicopters

AD/S-PUMA/32 Connectral Electrical Connection Modules 10/98

DM

Applicability: AS 332C, C1, L and L1 helicopters equipped with electrical connection modules, all part numbers, manufactured by Connectral S.A. Suresnes, France if:

1. the helicopter was manufactured between 17 April 1995 and 1 August 1996, or

b. an optional item or equipment comprising an electrical circuit equipped with a module has been installed or replaced between 17 April 1995 and 1 August 1996, or

c. an electrical circuit has been modified with the installation, or replacement, of a module between 17 April 1995 and 1 August 1996.

Requirement: 1. Check the functions of the electrical circuits of the various systems in vibration conditions (with rotor spinning) in accordance with Paragraph 2 of Eurocopter AS 332 Mandatory Service Bulletin No 01.00.51 date code 98-22.

2. Check Connectral modules held as spares (either as parts or installed on equipments) in accordance with Paragraph 2.A.b. of Eurocopter AS 332 Mandatory Service Bulletin No 01.00.51 date code 98-22.

Note: DGAC AD 98-254-070(A) refers.

Compliance: 1. Within 200 flying hours from the effective date of this directive, but no later than 31 December 1998.

2. Prior to installation on a helicopter after the effective date of this directive. This airworthiness directive becomes effective on 10 September 1998. Background: Eurocopter has advised that a manufacturing defect has been found causing electrical discontinuity. The defect only involves electrical connection modules manufactured by Connectral manufactured from week 95/16 to week 96/21. This directive requires the function checking of essential electrical circuits to detect defective electrical connection modules.