The Government is conducting a market survey to identify potential sources with the required repair data, capabilities, and experience to meet qualification requirements for repairing TH-1H helicopter parts. The relevant parts are attitude-heading gyroscopes, specifically NSNs 6615-12-372-6798HL (PN 141852-3122) and 6615-12-386-7894HL (PN 145130-7000). The repair method codes indicate repair for the second or subsequent time directly from the actual manufacturer (R3), and that the parts are commercial non-developmental off-the-shelf items with applicable commercial item descriptions, catalogs/price lists, or manuals (Z). Additional information is provided in the attachment.