AD/HS 125/150 Amdt 1 - Main Landing Gear - Sidestay Jack Pivot (Cth)

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

British Aerospace BAe 125 Series Aeroplanes

AD/HS 125/150 Amdt 1

Applicability: All models.

Main Landing Gear - Sidestay Jack Pivot 6/96

Requirement: 1. a. Visually inspect the left and right main landing gear sidestay jack pivot assemblies to identify bushes with eccentric bores.

1. b. Inspect jack pivot assemblies with eccentric bores for cracks, using magnetic particle method as per CAO 108.8. Inspect in the area defined in Detail A of the diagram on page 10 of Hawker SB 32-233 Revision 1.

Note: It has been found that some aircraft technical records may not correctly show the modification status of the jack pivot. Hawker Service Bulletin (SB) 32-233 Revision 2 and CAA(UK) AD 007-06-94 refer.

2. Replace jack pivot assembly, P/N 25UM1199A, 25UM1229A or 25UM87-1A, with P/N 25UM1335-1A or P/N 25-8UM173-1A.

3. Replace jack pivot assemblies P/N 25UM1199A, 25UM1229A or 25UM87-1A, that have been installed new after 23 June 1994, in accordance with Hawker SB 32-233-3597A. Replace with jack pivot assembly P/N 25UM1335-1A or P/N 25- 8UM173-1A.

Compliance: 1. Initially inspect before 3000 landings since sidestay assembly was new, before 1000 landings since overhauled or before 23 May 1996, whichever occurs last. Re-inspect assemblies with eccentric bores at intervals not to exceed:

1. 1000 landings, if no cracks are found, or;

b. 100 landings, if cracks are found which are within the serviceable limits specified in Hawker SB 32-233 Revision 2, Paragraph 2.B.(6)(c)

2. Replace assembly before 4000 landings or at the next 4000 landing overhaul, whichever occurs later.