NTSB Identification: DEN88IA167.
The docket is stored on NTSB microfiche number 37461.
Nonscheduled 14 CFR operation of CONNIE KALLITTA SERVICES
Incident occurred Tuesday, July 26, 1988 in DENVER, CO
Probable Cause Approval Date: 10/03/1989
Aircraft: BOEING 727-100, registration: N1973
Injuries: 5 Uninjured.
NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.
WHILE TAXIING TO THE CARGO RAMP, THE LEFT WING COLLIDED WITH A LIGHTPOLE AS THE FLIGHT CREW WERE DIRECTED BY GND PERS. ONE TAXI DIRECTOR ATTEMPTED TO HANDOFF THE FLIGHT TO ANOTHER BUT THE SECOND MISUNDERSTOOD AND TURNED AWAY. A THIRD PERSON, WHO WAS NOT A TAXI DIRECTOR BUT WAS A SAFETY LOOKOUT, BEGAN TO GIVE TAXI SIGNALS AND THE FLIGHTCREW FOLLOWED HIM. THIS PERSON DETERMINED THAT THE WING WOULD CLEAR THE POLE AND DIRECTED A TURN. HE BELIEVED THE FLIGHTCREW DID NOT TURN AS RAPIDLY AS HE HAD DIRECTED, RESULTING IN THE WING CONTACTING THE POLE. THE SAFETY LOOKOUT SAID HE ATTEMPTED TO STOP THE ACFT BUT HE WAS OUT OF VIEW UNDER THE ACFT NOSE AND HAD TO RUN OUT 15 FEET TO BE SEEN BY THE FLIGHTCREW. THE WINGTIPS ARE DIFFICULT TO SEE FROM THE 727 COCKPIT.
The National Transportation Safety Board determines the probable cause(s) of this incident to be:AIRCRAFT HANDLING..IMPROPER..GROUND PERSONNEL
INADEQUATE TRAINING..GROUND PERSONNEL
CREW/GROUP COORDINATION..POOR..GROUND PERSONNEL
CLEARANCE..MISJUDGED..PILOT IN COMMAND
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