What was found
REFERENCE LOG PAGE 802478 ITEM NR 1. AIR TURN BACK AT 14:55 Z HYD RESERVOIR LOW LEVEL. YELLOW HYD QTY WENT TO ZERO JUST AFTER TAKEOFF. R & R HYD PRESS LINE, PN D2901005100740 & AFT CLAMP BLOCK PN D2901013500000.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
REFERENCE LOG PAGE 802478 ITEM NR 1. AIR TURN BACK AT 14:55 Z HYD RESERVOIR LOW LEVEL. YELLOW HYD QTY WENT TO ZERO JUST AFTER TAKEOFF. R & R HYD PRESS LINE, PN D2901005100740 & AFT CLAMP BLOCK PN D2901013500000.