What was found
NR 1 ENG STALLED. CREW RETURNED TO LAS WITHOUT INCIDENT. ENG BORESCOPED & FERRIED BACK TO PHX. MX R & R NR 1 ENG 7TH STAGE BLEED VALVE, 7A & 7C BLEED VALVE, & 7C BLEED VALVE SOLENOID. LUBED VSV ON NR 1 ENG & R & R NR 1 EEC. PERFORMED POWER RUNS IAW TASK CARD. TEARDOWN REPORT OF EEC CONFIRMS REMOVAL. TEARDOWN SHOWS THAT 3 PRESSURE TRANSDUCERS, PAMB, P2 & P5, FAILED BEYOND CMM LIMITS. EEC REPAIRED & TESTED IAW CMM. BLEED VALVE TEARDOWN REVEALED EXCESSIVE LEAKAGE CAUSING VALVE OPENING & CLOSING PRESSURES EXCEEDED LIMITS. UNIT OVERHAULED & TESTED IAW CMM. OPS TESTS GOOD. TEARDOWN OF BLEED VALVE CONFIRMED UNIT FAILED TO FUNCTION. FOUND ALL PISTON SEALS & SHIMS DISTORTED DUE TO HEAT. PLUNGER VALVE REPLACED.