Palm Beach International Airport
Aircraft Accident/Incident Report

West Palm Beach, Florida 33414
Wednesday, May 24, 1995 12:48 EDT

NTSB Narrative Summary Released at Completion of Accident

THE AIRCRAFT WAS PUSHED BACK FROM THE GATE WITH TWO ENGINES OPERATING DUE TO AN INOPERATIVE APU. THE TUG DRIVER WAS ASSISTED BY TWO WING WALKERS. THERE WAS NO SIGNALMAN IN FRONT OF THE AIRCRAFT AS REQUIRED BY DELTA AIRLINES PUSHBACK PROCEDURES. AFTER PUSHING THE AIRCRAFT STRAIGHT BACK AND TURNING THE TAIL TO THE LEFT THE TUG WAS POSITIONED TO THE RIGHT FRONT OF THE AIRCRAFT. AS THE TUG MOVED FORWARD TO STRAIGHTEN THE NOSE GEAR THE SAFETY PIN ON THE TUG END OF THE TOW BAR SHEERED. THE AIRCRAFT BECAME DISCONNECTED FROM THE TUG AND ROLLED FORWARD STRIKING THE TUG WITH THE RIGHT FRONT AREA OF THE AIRCRAFT. AS THE AIRCRAFT ROLLED FORWARD THE TUG DRIVER'S HEADSET BECAME DISCONNECT FROM THE AIRCRAFT AND COMMUNICATION WITH THE COCKPIT CREW WAS LOST.

NTSB Probable Cause Narrative

THE FAILURE OF THE GROUND PUSHBACK CREW TO FOLLOW DELTA AIRLINES PUSHBACK PROCEDURES AND PLACE A SIGNALMAN FORWARD OF THE AIRCRAFT IN VIEW OF THE CAPTAIN DURING PUSHBACK. THIS RESULTED IN THE CAPTAIN NOT BEING AWARE THAT THE TUG TOW BAR HAD DISCONNECTED AND THE NEED FOR HIM TO APPLY BRAKES TO STOP THE AIRCRAFT.

Event Information

Type of Event Accident
Event Date 5/24/1995
Event Day of the Week Wednesday
Time of Event 1248
Event Time Zone Eastern Daylight Time
Event City WEST PALM BEACH
Event State FLORIDA
Event Country --
Zipcode of the event site 33414
Event Date Year 1995
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PALM BEACH INTERNATIONAL
Event Location Nearest Airport ID PBI
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 19
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1256 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID PBI
Elevation of weather observation facility 19
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 2700
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 30
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 100
Variable Wind Indicator Unknown
Wind Speed (knots) 13
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 19
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 1200
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 136
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 269
NTSB Notification Source --
NTSB Notification Date May 24 1995 12:00AM
NTSB Notification Time 1530
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:16PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N489DA
NTSB Number MIA95LA135
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 121: Air Carrier
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BOEING
Aircraft Model 727-232
Aircraft Series Identifier 727-232
Aircraft Serial Number 21019
Certified Max Gross Weight 142000
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 152
Number of Engines 3
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Mar 6 1995 12:00AM
Airframe hours since last inspection 600
Airframe Hours 60114
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name DELTA AIR LINES INC
Aircraft Owner Street Address ATLANTA AIRPORT
Aircraft Owner City ATLANTA
Aircraft Owner State GA
Aircraft Owner Country
Aircraft Owner Zipcode 30320
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code DALA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code PBI
Departure City
Departure State
Departure Country
Departure Time 1248
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code ATL
Destination City ATLANTA
Destination State GA
Destination Country
Specific Phase of Flight Taxi
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 20 2002 12:42PM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --