As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON CLIMBOUT FROM SEA, EICAS BLEED LOSS WING LEFT AND PACK LEFT MESSAGES. EMERGENCY DECLARED; FLIGHT RETURNED TO SEA LANDING SAFELY. **SUPPLEMENTAL REPORT FOR AALA202305266733: REPLACED LEFT PRESSURE REGULATING AND SHUTOFF VALVE (PRSOV) PER AMM 36-11-00. ACCOMPLISHED SATISFACTORY ENGINE AIR SUPPLY TEST, LEAK AND OPERATIONAL CHECKS.** (CLOSED)