As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO HNL DUE TO RIGHT PACK INOPERATIVE LIGHT ILLUMINATED. AIRCRAFT LANDED AT HNL WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND THE RIGHT CABIN AIR COMPRESSOR (CAC) DEFLECTOR DOOR ACTUATOR FAILED. **SUPPLEMENTAL REPORT WILL BE SUBMITTED.** (OPEN)