As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REMOVED AND REPLACED THE PSU BATTERY PACKS. OPS CHECK GOOD AT THIS TIME. POSITION 1. MPN OFF - 2013-1A / MSN OFF 79939. MPN ON 2013-1A / MSN ON 206909 POSITION 2 MPN OFF 2013-1A / MSN OFF 125181. MPN ON 2013-1A MSN ON 76501. POSITION 3 MPN OFF 2013-1A / MSN OFF 104542 MPN ON 2013-1A MSN ON 99189. POSITION 4 MPN OFF 2013-1A MSN OFF 124849 MPN ON 2013-1A MSN ON 69714.