COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Robin Aviation Series Aeroplanes
AD/ROBIN/8
Amdt 2
Wing Assembly 1/97
Applicability: Avions Pierre Robin model R2160, all serial numbers, with a time in service of 3400 hours or greater.
Requirement: 1. Inspect both wings in accordance with Avions Pierre Robin Service Bulletin (SB) 123.
Note: The inspection of the wing attachment fittings, using the method specified in SB 123, is not required as it is superseded by Requirement 2 of this Directive.
2. Remove both wings from the fuselage. Remove all paint from the wing-to- fuselage attachment fittings, using a solvent paint remover, including fittings on the fuselage. If the use of other paint strippers is unavoidable, remove all residue before inspection. Use of heavy mechanical or abrasive means of paint removal is not permitted.
Inspect all wing attachment fitting components for cracking, paying particular attention to the lower bolt hole areas. Check bolt holes for any eccentricity or signs of wear. Any cracks found during inspection must be repaired before further flight.
Note: It is recommended that some form of protective treatment, such as a standard Zinc Chromate Primer, be applied between inspections to surfaces from which the paint has been removed.
2A. Replace the wing attachment hardware in accordance with sections 2 and 3 of Avions Pierre Robin NOTE NAV 96-3, dated 2 May 1996.
2B. Check the torque of the front and rear wing attachment bolts is in accordance with section 3.3 of Avions Pierre Robin NOTE NAV 96-3, dated 2 May 1996. If the torque of the nut is incorrect, inspect in accordance with requirement 2C.
2C. Inspect the wing attachment hardware in accordance with sections 2 and 3 of Avions Pierre Robin NOTE NAV 96-3, dated 2 May 1996.
Note: DGAC AD 96-051(a)R1 refers to requirements 2A to 2C.
3. Retire wing assembly from service.
Compliance: 1. Initially inspect in accordance with Requirement 1 before exceeding 3 500 hours total time in service or before 375 hours time in service after 14 September 1995, whichever occurs later. Re-inspect at intervals not to exceed 750 hours time in service.
2. Unless already accomplished, inspect in accordance with Requirement 2 before exceeding 3500 hours total time in service. Re-inspect at intervals not to exceed 750 hours time in service.
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
2A. Unless already accomplished, replace the wing attachment hardware before 3500 hours time in service, or at the next inspection in accordance with Requirement 2 of this Directive after 2 January 1997, whichever occurs later.
2B. Unless already accomplished, check the torque in accordance with Requirement 2B before 100 hours time in service after replacement in accordance with Requirement 2A. Thereafter, check the torque at intervals not to exceed 100 hours time in service.
2C. Inspect the wing attachment hardware in accordance with Requirement 2C at each inspection in accordance with Requirement 2 after 2 January 1997.
3. Retire the wing assembly before exceeding 12000 hours time in service. This amendment becomes effective on 2 January 1997.
Background: The inspection of the wing attachment fittings superseded the retirement life requirement of AD/ROBIN/6, which was cancelled. Amendment 1 extended the existing inspection threshold and interval for the wing attachment fitting, mandated the manufacturers wing general inspection and specified a wing service life limit.
This Amendment adds requirements for replacement and inspection of the wing attachment hardware, as a result of the in-flight separation of a wing on a French R2160 aircraft. AD/ROBIN/28 Amdt 1 has similar requirements for R2160 aircraft with less than 3400 hours time in service.
Amendment 1 of this Airworthiness Directive became effective on 14 September 1995.
The initial issue of this Airworthiness Directive became effective on 28 February 1985.