What was found
LEFT CONSTANT SPEED DRIVE OIL TEMP RISING WITH APU ON PLACARD. EMER DECLARED FLIGHT RETURNED & LANDED WITHOUT INCIDENT. ACFT REMOVED FROM SERVICE. REPLACED LT ENG CONSTANT SPEED DRIVE & GEN. SYS GND CHECKED NORMAL OPERATION CLOSED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT CONSTANT SPEED DRIVE OIL TEMP RISING WITH APU ON PLACARD. EMER DECLARED FLIGHT RETURNED & LANDED WITHOUT INCIDENT. ACFT REMOVED FROM SERVICE. REPLACED LT ENG CONSTANT SPEED DRIVE & GEN. SYS GND CHECKED NORMAL OPERATION CLOSED.