This will be a Firm Fixed Price Requirements repair contract for the depot level repair, calibrate, and test the High Mobility Air Data Test Set (HMADTS) for the Electronic Systems Test Set (ESTS), AN/GSM-397. The National Stock Number (NSN) for the HMADTS is 4920-01-550-2455 and the Part Number (PN) is 18906300001. Best Estimated Quantity (BEQ): basic and each ordering period have a BEQ of 3 for repair and 26 for calibration. The Electronic Systems Test Set (ESTS) is an intermediate-level avionics tester, also used at the Depot, that detects and identifies faults in 50 F-15 three-level maintenance Line Replaceable Units (LRUs). ESTS replaces parts of six obsolete Avionics Intermediate Shop test set stations for the F-15. The Air Data Test Set (ADTS) is used in conjunction with the ESTS and Interface Test Adapter (6) to interface 2 LRUs to the ESTS station. This Performance- Based Work Statement (PWS) establishes the procedures that will be utilized to have the F-15 ESTS, ADTS (NSN 4920-01-550-2455; PN 18906300001) calibrated and/or repaired and tested, then returned to the Air Force to meet user demands and performance requirements. It defines workflow, repair turnaround times, quality control, configuration control, and data item submittals. There will be a line item for Repair, Calibration, Over and Above, Beyond Economical Repair (BER), and No Fault Found.