What was found
(AIRCRAFT GROUNDED) (EMERGENCY DECLARED) ECAM ENG 1 OIL LO PR. OIL PRESSURE WAS LESS THAN 13 PSI. OIL QUANITY IS 0 QT SHUT DOWN ENG 1 IN FLT / REMOVE AND REPLACE ENG#1 IAW TC 71-400-002. OPS AND LEAKS CHECK GOOD. A/C OK FOR SERVICE. REMOVED L/H ENG LUBRICATION UNIT FOR REPLACEMENT. IAW AMM 79-21-10-000-004-A. INSTALLED NEW L/H ENG LUBRICATION UNIT IAW AMM 79-21-10-400-004A. NO LEAKS AT THIS TIME. ALL OPS CHECKS GOOD AT THIS TIME. DUE TO IN FLIGHT SHUT DOWN, INSPECTION AFTER WINDMILLING REQUIRED. FOLLOWED TSM 05-51-34-200-001A. PERFORMED AMM 72-00-00-100-007. ENGINE OPERATED AT IDLE POWER WITHIN 24 HOURS AFTER LANDING. ENGINE DRY OUT AND RE-LUBE NOT REQUIRED.