Commonwealth legislation

AD/DAUPHIN/55 Amdt 1 - Tail Rotor Pitch Change Control Rods

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

Requires operators of Eurocopter AS365 N3 helicopters fitted with specific tail rotor pitch change control rods (p/n 365A33-6161-21 on a “quiet” fenestron) to retire those rods at 300 total flight hours and to follow a staged discard timetable for in-service rods; it also mandates removal in accordance with a Eurocopter Alert Service Bulletin. Operators pay for replacements and must meet specified compliance dates (Requirements 1–2; Compliance). The AD revokes the earlier directive.

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Current sections

Direct links to the current provisions in AD/DAUPHIN/55 Amdt 1 - Tail Rotor Pitch Change Control Rods.

AD/DAUPHIN/55 Amdt 1 - Tail Rotor Pitch Change Control Rods

View image in the official source

View image in the official source
AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/DAUPHIN/55 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

View image in the official source

Eurocopter SA-360 & SA-365 (Dauphin) Series Helicopters

AD/DAUPHIN/55

Amdt 1

Tail Rotor Pitch Change Control Rods 11/2002

Applicability: Model AS 365 N3 helicopters equipped with tail rotor pitch change control rods, part number 365A33-6161-21, installed on a “quiet” fenestron (post MOD 0764B39 or in compliance with Eurocopter AS 365 Service Bulletin No. 64.00.21).

Requirement: 1. The service life of affected tail rotor pitch change control rods (control rods) is limited to 300 total flight hours, with the following temporary actions to be taken for in-service control rods.

Control rods with 700 total flight hours or more must be discarded before further flight.

b. Control rods with 500 total flight hours or more must be discarded within the next 20 flight hours.

c. Control rods with 270 total flight hours or more must be discarded within the next 30 flight hours.

2. Retire from service, affected pitch change rods part number 365A33-6161-21 in accordance with paragraph 2.B. of Eurocopter AS365 N Alert Service Bulletin No. 01.00.55.

Note: DGAC AD 2002-472-057(A) refers.

Compliance: For Requirements 1.a., 1.b., and 1.c.: Effective from 3 October 2001.

For Requirement 2: Effective from 31 October 2002.

The compliance times remain unchanged for Requirements 1.a., 1.b., and 1.c; (previously Requirements 1, 2, and 3 at original AD issue).

This Amendment becomes effective on 25 September 2002.

Background: This Directive is issued in response to a DGAC AD which was prompted by a tail rotor pitch change control rod failure that occurred on a prototype helicopter.

Eurocopter SA-360 & SA-365 (Dauphin) Series Helicopters

AD/DAUPHIN/55 Amdt 1 (continued)

Amendment 1 is issued in response to a new DGAC AD which introduces a retirement time for affected tail rotor pitch change rods.

The original issue of this Airworthiness Directive became effective on 3 October 2001.

Signature of David Charles Punshon Delegate of the Civil Aviation Safety Authority

David Charles Punshon

Delegate of the Civil Aviation Safety Authority 19 September 2002

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 25 September 2002.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/DAUPHIN/55 Amdt 1 - Tail Rotor Pitch Change Control Rods

AIRWORTHINESS DIRECTIVE

Eurocopter SA-360 & SA-365 (Dauphin) Series Helicopters

AD/DAUPHIN/55

Amdt 1

Tail Rotor Pitch Change Control Rods 11/2002

Control rods with 700 total flight hours or more must be discarded before further flight.

b. Control rods with 500 total flight hours or more must be discarded within the next 20 flight hours.

c. Control rods with 270 total flight hours or more must be discarded within the next 30 flight hours.

2. Retire from service, affected pitch change rods part number 365A33-6161-21 in accordance with paragraph 2.B. of Eurocopter AS365 N Alert Service Bulletin No. 01.00.55.

Note: DGAC AD 2002-472-057(A) refers.

Compliance: For Requirements 1.a., 1.b., and 1.c.: Effective from 3 October 2001.

For Requirement 2: Effective from 31 October 2002.

The compliance times remain unchanged for Requirements 1.a., 1.b., and 1.c; (previously Requirements 1, 2, and 3 at original AD issue).

This Amendment becomes effective on 25 September 2002.

Background: This Directive is issued in response to a DGAC AD which was prompted by a tail rotor pitch change control rod failure that occurred on a prototype helicopter.

Eurocopter SA-360 & SA-365 (Dauphin) Series Helicopters