As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHL/IAD - FLT 6614 - AT 1540 HOURS ON 6-22-98, AIRCRAFT MADE AN UNSCHEUDLED LANDING DUE TO LT ENGINE FLUCTUATION. CREW SHUT DOWN LT ENGINE. MAINTENANCE INSPECTED AND REMOVED AND REPLACED PROPELLER GOVERNOR. OPS CHECK OK. AIRCRAFT WAS RELASED AND RETURNED TO SERVICE. (X)