What was found
APU FIRE INDICATION. APU FIRE LIGHT, FELT SLIGHT SHUDDER IN AIRFRAME PRIOR TO APU FIRE LIGHT. APU FIRE HANDLE PULLED AND BOTTLE DISCHARGED, APU FIRE LIGHT EXTINGUISHED WITHIN 10 SECONDS. EGT ABOUT 680 AT OCCURRENCE. APU UNLOADED AND AT IDLE. CRUISE FLIGHT AT 35,000 FT, APU EGT DROPPED TO 0 WITHIN 20 MINUTES OF SHUTDOWN. EMERGENCY WAS DECLARED AND DIVERTED TO ABQ. INSPECTED APU FOUND NO EVIDENCE OF FIRE, RAN APU NO LOAD, UNDER LOAD, OPS NORMAL, BLEED GOOD. NO FURTHER DEFECTS NOTED AT THIS TIME C/W APU PERFORMANCE TEST IAW 6RD49001.