Commonwealth legislation

AD/CL-600/37 Amdt 1 - Flight Spoiler Centre Hinge Fitting

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Commonwealth

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legislative instrument

Plain English Summary

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This AD requires operators of Bombardier CL-600-2B19 aircraft (serials 7003–7340) to inspect the flight‑spoiler centre‑hinge actuator lugs according to Transport Canada AD CF-2000-15 R1 and to replace spoilers with redesigned parts (P/N 600-10602-73/74) to terminate inspections. (Applicability; Requirement; Note 2)

Amendment 1 lowers the inspection threshold to 3,000 flight cycles, increasing inspection frequency and maintenance costs for affected operators; compliance timing follows the Requirement document. (Background; Compliance)

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Current sections

Direct links to the current provisions in AD/CL-600/37 Amdt 1 - Flight Spoiler Centre Hinge Fitting.

AD/CL-600/37 Amdt 1 - Flight Spoiler Centre Hinge Fitting

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
View image in the official source
Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes

AIRWORTHINESS DIRECTIVE

View image in the official source

View image in the official source
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/CL-600/37 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.

AD/CL-600/37

Amdt 1

Flight Spoiler Centre Hinge Fitting 5/2001

Applicability: Model CL-600-2B19 “Regional Jet” aircraft, serial numbers 7003 through 7340. Requirement: Inspect in accordance with Transport Canada AD CF-2000-15 R1.

Note 1: Bombardier Alert Service Bulletin (ASB) A601R-57-O27 Revision C refers.

Note 2: Installation of redesigned flight spoilers part number 600-10602-73 and -74 provides terminating action to the inspection requirements of Parts A and B of the Requirement document.

Compliance: As specified in the Requirement document for the initial and repeat inspection requirements, and eventual replacement requirement; with a revised effective date of 17 May 2001.

Note: Compliance with previous versions of ASB A601R-57-027 - original issue, Revision A, or Revision B - also meet the requirements of paragraph A.1 of the Requirement document.

This amendment becomes effective on 17 May 2001.

Background: Transport Canada received reports of four cases of uncommanded deployment of a flight spoiler due to fracture of the actuator lug on one of the centre hinge fittings of the left or right flight spoiler. In each case a status message was posted and the flight crew landed the aircraft safely.

Amendment 1 is issued in response to a revision of the Requirement document which lowers the threshold for inspection of the flight spoiler lug to 3,000 flight cycles.

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official sourceThe original issue of this Airworthiness Directive became effective on 5 October 2000.

View image in the official source

David Alan Villiers

Delegate of the Civil Aviation Safety Authority 2 April 2001

View image in the official source

The above AD is notified in the Commonwealth of Australia Gazette on 18 April 2001.

Source text

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

1 AD/CL-600/37 Amdt 1 - Flight Spoiler Centre Hinge Fitting

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

Bombardier (Canadair) CL-600 (Challenger) Series Aeroplanes

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/CL-600/37 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.

AD/CL-600/37

Amdt 1

Flight Spoiler Centre Hinge Fitting 5/2001

Applicability: Model CL-600-2B19 “Regional Jet” aircraft, serial numbers 7003 through 7340. Requirement: Inspect in accordance with Transport Canada AD CF-2000-15 R1.

Note 1: Bombardier Alert Service Bulletin (ASB) A601R-57-O27 Revision C refers.

Note 2: Installation of redesigned flight spoilers part number 600-10602-73 and -74 provides terminating action to the inspection requirements of Parts A and B of the Requirement document.

Compliance: As specified in the Requirement document for the initial and repeat inspection requirements, and eventual replacement requirement; with a revised effective date of 17 May 2001.

Note: Compliance with previous versions of ASB A601R-57-027 - original issue, Revision A, or Revision B - also meet the requirements of paragraph A.1 of the Requirement document.

This amendment becomes effective on 17 May 2001.

Amendment 1 is issued in response to a revision of the Requirement document which lowers the threshold for inspection of the flight spoiler lug to 3,000 flight cycles.

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