Maintenance Directive NL-2010-002 Continuing Airworthiness Records - Status of Repairs

1) Compliance time

a) Repairs, which are performed after the effective date of this MD, should be recorded in the aircraft continuing airworthiness record system within 30 days as stated in subpart M.A.305(a).

b) Repairs, which are performed after 28 September 2005 and before the effective date of this MD, should be recorded in the aircraft continuing airworthiness records within 6 months after the effective date of this MD.

c) Repairs, which are performed before 28 September 2005, should be recorded in the aircraft continuing airworthiness records in an acceptable timeline, which corresponds to the FAA Aging Airplane Safety Rule timeline for conducting airplane surveys. This implementation schedule is defined in section 217.a of FAA AC 120-93, dated 20 November 2007. The schedule depends on the percentage of time, cycles, or both, in relation to an aircraft design service goal (DSG) and results into 3 categories:

i) Aircraft less than 75% of DSG on 18 December 2009: repairs should be recorded in the aircraft continuing airworthiness records at or before the first heavy maintenance check (equivalent to a “D-check”) after an aircraft reaches 75% of DSG, not to exceed the DSG, or a period of 6 years after the effective date of this MD, whichever occurs later.

ii) Aircraft between 75% of DSG and DSG on 18 December 2009: repairs should be recorded in the aircraft continuing airworthiness records at or before the next heavy maintenance check (equivalent to a “D check”) after 20 December 2010, not to exceed the DSG or 6 years, whichever occurs later.

iii) Aircraft beyond DSG on 18 December 2009: repairs should be recorded in the aircraft continuing airworthiness records at or before the next heavy maintenance check (equivalent to a “D-check”) after 20 December 2010, not to exceed 6 years.

2) Means of compliance

 a) Repairs on aircraft structures, at least those repairs defined in sub 3) of this Appendix, should be recorded on the list of embodied repairs. The list of embodied repairs should at least contain the following parameters for each single repair-entry:

i) Description of repair.

ii) Location of repair.

iii) Reference to approved maintenance data (substantiation documentation: reference data such as DTA).

iv) Supplemental inspections and limitations when applicable.

v) Date of accomplishment of the repair. Optional parameters are for example: vi) Reference to damage report.

vii) Reference to accomplishment instructions.

viii)Reference to instruction for continuing airworthiness.

ix) Dimensions of repair.

x) Number of flight cycles/hours at the date of accomplishment of the repair.

xi) Operator specific parameters.

3) Detailed conditions for compliance

a) At least those repairs on aircraft, should be recorded conform sub 2) of this MD, when those repairs are applied to:

i) Primary structure, as defined by the applicable Type Certificate Holder in the aircraft specific Structural Repair Manual (SRM).

ii) Components Vital to Flight Safety, which are defined as:

(1) Certified Life Limited Parts and Components subjected to Airworthiness Limitations; and

(2) Major components: under carriage and primary flight controls. For components an additional condition defined in 3b) is applicable.

b) For all components as defined in 3aii), special attention is required for the acceptance check prior to installation, to ensure that 145.A.42 is complied with and specifically that the repairs as specified in this MD have been properly recorded on the authorized release certificate, or in a referred logbook or logcard, to guarantee no loss of instructions for continued airworthiness during the installation of that component.

c) Excepted from sub 3a) of this MD: blend repairs on aircraft parts specified in sub 3a) of this MD when they are within the allowable damage limits specified in the applicable SRM of the Type Certificate Holder and the administration of these repairs is in conformance with this SRM.

d) Notes:

i) It is recommended to record all repairs on the list of embodied repairs conform sub 2) of this MD.

ii) All repairs should be approved and have been shown to be in compliance with the applicable certification specification. For all repairs records as specified in M.A.305(d) should be stored for periods specified in M.A.305(h).