As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(DCA) AFTER TAKE OFF, GEAR UP THEN GOT MASTER CAUTION LIGHT "FLT CONT" AND 10 SECONDS LATER MASTER CAUTION "HYD". LOOKED UP AND SAW ENG 1 A PUMP LOW PRESSURE LIGHT ON. BEFORE I COULD DO QRH, ALL LIGHTS EXTINGUISHED AFTER 45-60 SECONDS TOTAL. ALL HYD QUANTITIES AND PRESSURES NORMAL. CONTINUED NORMAL FLIGHT. GROUNDED - YES. R/R ENG #1 EDP, OPS CHECK GOOD IAW B737-800 AMM 29-11-11-400-801-001. NO LEAK NOTED.