What was found
BTB: APU VALVE DISAGREE LEVEL 1 ALERT CAME ON AFTER SHUTTING DOWN APU ON TAXI OUT. REPLACED APU BLEED AIR VALVE PER AMM 36-16-02.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BTB: APU VALVE DISAGREE LEVEL 1 ALERT CAME ON AFTER SHUTTING DOWN APU ON TAXI OUT. REPLACED APU BLEED AIR VALVE PER AMM 36-16-02.