What was found
AFTER TAKEOFF, LEFT MAIN LANDING GEAR DID NOT RETRACT. MADE A STRANGE NOISE (SURGING HYDRAULIC AND/OR WIND NOISE). LOWERED GEAR AND LANDED NORMALLY AFTER RETURNING TO LA. REPLACED LANDING CONTROL BOX.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER TAKEOFF, LEFT MAIN LANDING GEAR DID NOT RETRACT. MADE A STRANGE NOISE (SURGING HYDRAULIC AND/OR WIND NOISE). LOWERED GEAR AND LANDED NORMALLY AFTER RETURNING TO LA. REPLACED LANDING CONTROL BOX.