As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FROM CLIMB AROUND 7500 FT LEFT OIL PRESSURE WENT TO RED INDICATION THEN BACK TO NORMAL LEFT DIPPING AND SPIKING TO NORMAL RANGE LOWS AROUND 30 PSI WITH CONSISTENT JUMPS TO 45-60 CONSTANTLY DIPPING AND SPIKING WITH ONE READING 25 PSI. RETURNED TO ATL. AIRCRAFT RETURNED TO ATL AFTER T/O, EMERGENCY DECLARED & EMERGENCY VEHICLES ROLLED AS A PRECAUTION. FLT 5461 DEL 187 MINS.