What was found
DURING TAXI, L PACK WILL NOT TURN ON WITH R PACK OPERATING. A/C RETURNED TO GATE (BTB). MX DEFERRED LEFT HAND PACK IAW MEL 21-51-1-1. A/C RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING TAXI, L PACK WILL NOT TURN ON WITH R PACK OPERATING. A/C RETURNED TO GATE (BTB). MX DEFERRED LEFT HAND PACK IAW MEL 21-51-1-1. A/C RETURNED TO SERVICE.