AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (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.
Seats and Berths
AD/SEATS/19 SICMA Passenger Seats (16g) - Backrest Links
Inspection and Replacement
3/2002
Applicability: All SICMA AERO SEAT passenger seats of series 9140, 9166, 9173, 9174, 9184,
9188, 9196, 91B7, 91B8, 91C0, 91C2, 91C3, 91C4, 91C5, 9301, 9501, equipped with
backrest links P/N 90-000200-104-1 and 90-000200-104-2.
Note: A detailed list of affected seat P/N’s is given in SICMA AERO SEAT Service Bulletin 90-25-012, Revision 3, Annex 1.
Requirement: 1. Carry out a visual inspection of the backrest links and take corrective action in accordance with Part 1 of SICMA AERO SEAT Service Bulletin 90-25-012 Revision 3.
2. Repeat visual inspection as per requirement 1.
3. Replace backrest links P/N 90-000200-104-1 and 90-000200-104-2 in accordance with Part 2 of SICMA AERO SEAT Service Bulletin 90-25-012 Revision 3.
Note: DGAC AD 2001-605(AB) refers.
Compliance: 1. Before 6,000 hours time in service or two years from seat manufacture date or before 6,000 hours time in service or two years since last backrest link installation, or within 900 hours time in service or before five month from the effective date of this AD whichever is the later.
2. Every 900 hours time in service or every five months whichever is the later after 12000 hours time in service or more than four years from the seat manufacturing date, without exceeding 3,500 hours or 18 months after the effective date of this AD, until replacement of the backrest links in accordance with requirement 3.
3. For installed seats: Before 12,000 hours time in service or since last backrest link installation, or before four years from seat manufacturing date or from last backrest link installation, or within the next 3,500 hours in service or before eighteen months from the effective date of this AD, whichever occurs later.
For uninstalled seats: Before installation of seats having more than 12,000 hours time in service or more than four years since seat manufacturing date, or more than 12,000 hours time in service or more than four years since last backrest link installation, whichever occurs later.
Seats and Berths
AD/SEATS/19 (continued)
This Airworthiness Directive becomes effective on 21 March 2002.
Background: Cracks have been found in the backrest links which can significantly reduce the structural integrity of seat backrests.
David Alan Villiers
Delegate of the Civil Aviation Safety Authority 6 February 2002
The above AD is notified in the Commonwealth of Australia Gazette on 27 February 2002.