A B-727-400 winglet struck during pushback by another b- 727-400 taxiing by.

Attributes
ACN	278114
Time
Date	199407
Day	Fri
Local Time Of Day	0001 To 0600
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	B747-400
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	B747-400
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	ground other : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : commercial pilot : atp pilot : instrument
Experience	flight time last 90 days : 100 flight time total : 14500 flight time type : 1765
ASRS Report	278114
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : ground critical other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : insufficient time
Consequence	other Other
Miss Distance	horizontal : 0 vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was in first observer seat during pushback from gate, getting the passenger count from the flight attendant via the intercom. The aircraft stopped and then began moving forward, returning to the gate (still under tow). Our wingwalker on the ground told our pushback mechanic that air carrier Y airlines 747-400 had clipped our winglet with his winglet as he taxied by. We returned to the gate and they found only a small 4 inch cut in the winglet, which they reported and sent us on our way again in about 20 mins. Captain and flying first officer stated that we had been cleared to push after air carrier Z taxied by. We began pushback after an air carrier Z passed but ground control then said, 'not that air carrier Z, the air carrier Z 727.' at that point they instructed the tug driver to pull back into the gate. Ground control told air carrier Y airlines, 'caution for the 747 pushed out of gate xa.' he replied something to the effect of, 'we always exercise caution' just before he clipped us. Our wingwalker could see it coming and waved frantically at the air carrier Y airlines plane, but with no success. Air carrier Y continued to the runway apparently unaware of the contact until the tower told him.

Original NASA ASRS Text

Title: A B-727-400 WINGLET STRUCK DURING PUSHBACK BY ANOTHER B- 727-400 TAXIING BY.

Narrative: I WAS IN FIRST OBSERVER SEAT DURING PUSHBACK FROM GATE, GETTING THE PAX COUNT FROM THE FLT ATTENDANT VIA THE INTERCOM. THE ACFT STOPPED AND THEN BEGAN MOVING FORWARD, RETURNING TO THE GATE (STILL UNDER TOW). OUR WINGWALKER ON THE GND TOLD OUR PUSHBACK MECH THAT ACR Y AIRLINES 747-400 HAD CLIPPED OUR WINGLET WITH HIS WINGLET AS HE TAXIED BY. WE RETURNED TO THE GATE AND THEY FOUND ONLY A SMALL 4 INCH CUT IN THE WINGLET, WHICH THEY RPTED AND SENT US ON OUR WAY AGAIN IN ABOUT 20 MINS. CAPT AND FLYING FO STATED THAT WE HAD BEEN CLRED TO PUSH AFTER ACR Z TAXIED BY. WE BEGAN PUSHBACK AFTER AN ACR Z PASSED BUT GND CTL THEN SAID, 'NOT THAT ACR Z, THE ACR Z 727.' AT THAT POINT THEY INSTRUCTED THE TUG DRIVER TO PULL BACK INTO THE GATE. GND CTL TOLD ACR Y AIRLINES, 'CAUTION FOR THE 747 PUSHED OUT OF GATE XA.' HE REPLIED SOMETHING TO THE EFFECT OF, 'WE ALWAYS EXERCISE CAUTION' JUST BEFORE HE CLIPPED US. OUR WINGWALKER COULD SEE IT COMING AND WAVED FRANTICALLY AT THE ACR Y AIRLINES PLANE, BUT WITH NO SUCCESS. ACR Y CONTINUED TO THE RWY APPARENTLY UNAWARE OF THE CONTACT UNTIL THE TWR TOLD HIM.

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.