Hi FranAle,
While this does not answer your question directly there is a very interesting accident investigation report downloadable from the Internet. It is Australian Transportation Safety Investigation Report: Aviation Occurrence Investigation Report 200605843 "In-Flight Break-up of BAC 167 Strikemaster"
There is the following paragraph in this report:
"Specific maintenance documentation for AKY was transferred with the aircraft from the previous military operators to the civil operator. Significant maintenance information pertaining to AKY, such as year of manufacture, special inspection requirements and previous repairs had not been identified by the civil operator and incorporated in the system of maintenance. The reason for that could not be determined; however it is likely that this was due to unfamiliarity with the military system of maintenance. In addition, there is no avenue for civil operators of retired military aircraft to obtain assistance from the military aircraft manufacturers in establishing a system of maintenance for the continued airworthiness of their particular aircraft.
There is also no avenue for civil operators of retired military aircraft to obtain advice and information from the previous military owner. In the case of AKY, that access was particularly important with respect to the previous cracking in the right wing upper attachment spar lug top surface and the resultant reduction in the inspection period while in service with the previous military operator.
That transfer of aircraft maintenance documentation, aircraft history and corporate knowledge is applicable to all aircraft that have been retired from previous military service. Accordingly, additional vigilance must be paid to ensure that ex-military aircraft are being maintained to ensure continued airworthiness".
You will have to be very careful regarding fatigue on this old aircraft. The mentioed accident was due to fatigue failure at wing attachments.
Regards
Andries