As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY DECLARED, LANDING UNEVENTFUL & ACFT NOT OVERWEIGHT. DURING CRUISE NR 1 ENG LOW PRESS HYD LIGHT ILLUMINATED. 30 MINUTES LATER LOSS OF SYS A QTY & PRESS OCCURRED. R & R NR 1 ENG DRIVEN PUMP, PRESS & SUPPLY HOSES IAW AMM 29-11-11. R & R CASE DRAIN, RETURN & SYS A MODULE FILTERS WITH NO CONTAMINATION FOUND. OPERATIONAL & LEAK CHECKS PERFORMED. SYSTEM CHECKED NORMAL.