What was found
DURING TEST FLIGHT (DISCREPANCY)-------- MACH OVERSPEED ACTUATED AT .84 MACH AT 278 KNOTS AT 37000.1) ONT/S FOUND 300 FEET PER MINUTE LEAK ON AUX STATIC SYS, OUT OF LIMITS PER B-727 M.M. 34-11-00.2)FOUND CRACKED TEE-FITTING ON AUX STATIC LINE AT E AND E COMPARTMENT AND LEAK CHECKED GOOD ON AUX STATIC SYSTEM PER B-727 M.M. 34-11-0.3) NR 2 MACH WARNING SYS OPS CHECK GOOD PER B-727-200 AFM DOC D6-8728, STC ST00116SE " ALTAIR HOLDINGS, LTD, MAXIMUM AIRSPEED LIMITATIONS TABLE 1,4) REPLACED NR 3 OVERSPEED WARNING SWITCH OPERATIONAL CHECK OF WARNING SWITCH GOOD.-I.A.W. B-727-200 AFM DOR # D6-8788 STC ST0016SE LIMITATIONS TABLE 1 DWG 4502 REV. B. I.A.W. B-727 M.M. 34-18-0.