(2) Major modification of an item, piece of equipment, or material which is wholly or partially obsolete, and under which all of the following conditions exist:
(i) The item or equipment is required to be completely or substantially torn down.
(ii) Outmoded parts are replaced.
(iii) The item or equipment is rebuilt or reassembled.
(iv) The contract work results in the furnishing of a substantially modified item in a usable and serviceable condition.
(v) The work is performed in a facility owned or operated by the contractor.