What was found
DURING LINE MAINTENANCE ACTIVITIES, THE APU AUTO SHUT DOWN. UPON RESTART THE APU CAUGHT FIRE. EMERGENCY PROCEDURES FOLLOWED AND AND FIRE BOTTLE DISCHARGED EXTINGUISHING THE FLAMES. REMOVED AND REPLACED THE APU IAW MM PROCEDURES.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING LINE MAINTENANCE ACTIVITIES, THE APU AUTO SHUT DOWN. UPON RESTART THE APU CAUGHT FIRE. EMERGENCY PROCEDURES FOLLOWED AND AND FIRE BOTTLE DISCHARGED EXTINGUISHING THE FLAMES. REMOVED AND REPLACED THE APU IAW MM PROCEDURES.