A taxiing widebody transport cut the wingtip off of another widebody transport under tow.

Attributes
ACN	238143
Time
Date	199304
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lax
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 4 Turbojet Eng
Flight Phase	other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 4 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 15000 flight time type : 300
ASRS Report	238143
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 106 flight time total : 7500 flight time type : 720
ASRS Report	238169
Events
Anomaly	conflict : ground critical other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

While under tow, just a few ft from the gate, my aircraft was struck by a taxiing air carrier a widebody transport. The impact tore off 5 ft of my right wingtip and damaged the vertical winglet of the air carrier a widebody transport. My only observation is that you must constantly check clrncs of the wings while taxiing. Go slow if in doubt. Supplemental information from acn 238169: tow hooked to aircraft approximately 30 ft to gate. Aircraft towed to gate approximately 10 ft from gate. Aircraft received a jolt (big bump). But since he sliced through our wing indicates to me a rather fast taxi speed in a congested area.

Original NASA ASRS Text

Title: A TAXIING WDB CUT THE WINGTIP OFF OF ANOTHER WDB UNDER TOW.

Narrative: WHILE UNDER TOW, JUST A FEW FT FROM THE GATE, MY ACFT WAS STRUCK BY A TAXIING ACR A WDB. THE IMPACT TORE OFF 5 FT OF MY R WINGTIP AND DAMAGED THE VERT WINGLET OF THE ACR A WDB. MY ONLY OBSERVATION IS THAT YOU MUST CONSTANTLY CHK CLRNCS OF THE WINGS WHILE TAXIING. GO SLOW IF IN DOUBT. SUPPLEMENTAL INFO FROM ACN 238169: TOW HOOKED TO ACFT APPROX 30 FT TO GATE. ACFT TOWED TO GATE APPROX 10 FT FROM GATE. ACFT RECEIVED A JOLT (BIG BUMP). BUT SINCE HE SLICED THROUGH OUR WING INDICATES TO ME A RATHER FAST TAXI SPD IN A CONGESTED AREA.

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.