B737 hit a tug while being marshalled into the gate.

Attributes
ACN	453764
Time
Date	199911
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ord.airport
State Reference	IL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi ground other : parking
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	453764
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : multi engine
ASRS Report	454239
Events
Anomaly	conflict : ground critical non adherence : published procedure non adherence : company policies
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other other
Supplementary
Problem Areas	Company
Primary Problem	Company

Narrative:

Aircraft ground incident. On arrival into ord gate af, stopped aircraft short of gate to await arrival of ground crew for marshalling. Ground crews were bringing other aircraft into gates ab and ah. Ground crew came over to our gate, taxi director obtained wands, and started to direct aircraft to parking spot. Taxied aircraft forward slowly while noting a tug positioned beyond jetbridge. Proceeded ahead slowly under guideman's direction and noted the tug going out of view beneath nose of aircraft. Lineman was still giving slow ahead directions positioned on my side of tug and still giving come ahead signal when slight impact was felt/heard. Stopped aircraft immediately. Jetbridge was brought up to aircraft, and after passenger deplaned I walked out on jetbridge ladder and noted bottom of aircraft nose radome had impacted cabin cover of tug causing slight indentation of bottom of radome.

Original NASA ASRS Text

Title: B737 HIT A TUG WHILE BEING MARSHALLED INTO THE GATE.

Narrative: ACFT GND INCIDENT. ON ARR INTO ORD GATE AF, STOPPED ACFT SHORT OF GATE TO AWAIT ARR OF GND CREW FOR MARSHALLING. GND CREWS WERE BRINGING OTHER ACFT INTO GATES AB AND AH. GND CREW CAME OVER TO OUR GATE, TAXI DIRECTOR OBTAINED WANDS, AND STARTED TO DIRECT ACFT TO PARKING SPOT. TAXIED ACFT FORWARD SLOWLY WHILE NOTING A TUG POSITIONED BEYOND JETBRIDGE. PROCEEDED AHEAD SLOWLY UNDER GUIDEMAN'S DIRECTION AND NOTED THE TUG GOING OUT OF VIEW BENEATH NOSE OF ACFT. LINEMAN WAS STILL GIVING SLOW AHEAD DIRECTIONS POSITIONED ON MY SIDE OF TUG AND STILL GIVING COME AHEAD SIGNAL WHEN SLIGHT IMPACT WAS FELT/HEARD. STOPPED ACFT IMMEDIATELY. JETBRIDGE WAS BROUGHT UP TO ACFT, AND AFTER PAX DEPLANED I WALKED OUT ON JETBRIDGE LADDER AND NOTED BOTTOM OF ACFT NOSE RADOME HAD IMPACTED CABIN COVER OF TUG CAUSING SLIGHT INDENTATION OF BOTTOM OF RADOME.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.