As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 9821 - CREW REPORTED WHILE DOING TRAINING FLIGHT E1 OIL PRESSURE SHOWED 30 LBS CREW SHUT E1 DOWN AND DECLARED EMERGENCY. AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED LEFT ENG OIL PRESS SENSOR AND OIL PRESS SWITCH IAW SAAB MM 79-30-05. OPS CHECK GOOD AT THIS TIME. AIRCRAFT RETURNED TO SERVICE.