THE FAILURE OF SENIOR MANAGEMENT OF GP EXPRESS TO PROVIDE ADEQUATE TRAINING AND OPERATIONAL SUPPORT FOR THE STARTUP OF THE SOUTHERN OPERATION, WHICH RESULTED IN THE ASSIGNMENT OF AN INADEQUATELY PREPARED CAPTAIN WITH A RELATIVELY INEXPERIENCED FIRST OFFICER IN REVENUE PASSENGER SERVICE, AND THE FAILURE OF THE FLIGHTCREW TO USE APPROVED INSTRUMENT FLIGHT PROCEDURES, WHICH RESULTED IN A LOSS OF SITUATIONAL AWARENESS AND TERRAIN CLEARANCE. CONTRIBUTING TO THE CAUSES OF THE ACCIDENT WAS GP EXPRESS' FAILURE TO PROVIDE APPROACH CHARTS TO EACH PILOT AND TO ESTABLISH STABILIZED APPROACH CRITERIA. ALSO CONTRIBUTING WERE THE INADEQUATE CREW COORDINATION AND A ROLE REVERSAL ON THE PART OF THE CAPTAIN AND FIRST OFFICER. (NTSB REPORT AAR-93/03)