As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT CHECKS, FLIGHT CREW NOTED LT OVERWING SLIDE BOTTLE PRESSURE LOW ON FAP PANEL AND NOTED THE FOLLOWING ON LP 742862, ITEM NR 1. OVERWING, ACFT LT- AFT SLIDE INDICATOR SHOWED PRESSURE LOW. R & R LT OVERWING SLIDE RESERVOIR IAW AMM 25-62-46. OVERWING SLIDE BOTTLE WAS REPLACED AND AIRCRAFT TOOK A 56 MINUTE DEPARTURE DELAY.