II, from the TSB report the SAC rep did not disapprove so by virtue of consultation and no objection IMO accepted the repair.
VH-LOH's MGB oil filter bowl had been removed and reinstalled 17 times during the helicopter's total time in service (1233.4 hours). Approximately 58 flight hours before the July 2008 incident, on 09 June 2008, a MGB oil filter bowl mounting stud had fractured during removal of the attachment nut. Because a new stud and the proper tools were not immediately available, after consulting with Sikorsky's local field service representative, CHC carried out a temporary repair, installing a self-locking nut on the fractured stud. The self-locking feature of this nut did not fully engage the shortened length of the fractured stud so a hole was drilled in the nut to lockwire it for security. Although Sikorsky's engineering department was not specifically consulted, no technical objections to the temporary repair were presented by the Sikorsky field service representative.
212man, from section 2.1 of the Waldron report the "repaired" stub with the Nyloc nut was one of the failed studs.
VH-LOH was in the air for only 5 minutes from MRGB pressure loss and not as the local media stated the other day flown until the MRGB failed. I wish they would get their facts right.
Safe flying
Max