As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS ON TAKEOFF DURING LDG GEAR RETRACTION BOTH ENG AND ELEC HYD SYS A LOW PRESSURE LTS ILLUMINATED WITH MASTER CAUTION FLT CONT & HYD ANNUNCIATED. MAINTENANCE REMOVED AND REPLACED A/B HYD SYSTEMS AIR PRESSURE GUAGE. REMOVED AND REPLACED LEFT ENGINE EDP CASE DRAIN FILTER ELEMENT IAW AMM 29-11-51 AND AMM 29-09-03.