What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On October 6, 1999, america west airlines' Boeing 737-300, N155AW, departed Kansas City International Airport (mci), and returned to mci due to an abnormal vibration. Aircraft landed without emergency equipment. Aircraft was ferried to phoenix, where #6 spoiler actuator was replaced. Aircraft was test flown with no findings.
As the FAA filed it
(-23) ON OCTOBER 6, 1999, AMERICA WEST AIRLINES' BOEING 737-300, N155AW, DEPARTED KANSAS CITY INTERNATIONAL AIRPORT (MCI), AND RETURNED TO MCI DUE TO AN ABNORMAL VIBRATION. AIRCRAFT LANDED WITHOUT EMERGENCY EQUIPMENT. AIRCRAFT WAS FERRIED TO PHOENIX, WHERE #6 SPOILER ACTUATOR WAS REPLACED. AIRCRAFT WAS TEST FLOWN WITH NO FINDINGS.