<< >> NASA ASRS Report 633109, October 2004

A B737 crew experienced a near ground collision with another fast taxiing B737 in a ramp controled area.

Attributes
ACN	633109
Time
Date	200410
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : iah.airport
State Reference	TX
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : iah.tower
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 240 flight time total : 18000 flight time type : 12000
ASRS Report	633109
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : ground critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : took precautionary avoidance action
Supplementary
Problem Areas	Flight Crew Human Performance Airport Company
Primary Problem	Flight Crew Human Performance

Narrative:

Instructed by ramp control to follow MD80 ahead via outer bridge transition to the north taxiway line to spot X. Just after crossing the bridge wbound and getting ready to transition to the north line we were passed up on the right side by a fast taxiing B737-300. If I did not have my first officer visually clear the area on the right we would have had a ground collision. No mention of this aircraft coming up on our right side was ever made by the ramp controller. We neither heard a resequence over spot X. Crossing aircraft on the ramp is hazardous. Ramp control needs to warn aircraft when other aircraft are passing them, because of our blind spots.

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Original NASA ASRS Text

Title: A B737 CREW EXPERIENCED A NEAR GND COLLISION WITH ANOTHER FAST TAXIING B737 IN A RAMP CTLED AREA.

Narrative: INSTRUCTED BY RAMP CTL TO FOLLOW MD80 AHEAD VIA OUTER BRIDGE TRANSITION TO THE NORTH TXWY LINE TO SPOT X. JUST AFTER XING THE BRIDGE WBOUND AND GETTING READY TO TRANSITION TO THE NORTH LINE WE WERE PASSED UP ON THE R SIDE BY A FAST TAXIING B737-300. IF I DID NOT HAVE MY FO VISUALLY CLR THE AREA ON THE R WE WOULD HAVE HAD A GND COLLISION. NO MENTION OF THIS ACFT COMING UP ON OUR R SIDE WAS EVER MADE BY THE RAMP CTLR. WE NEITHER HEARD A RESEQUENCE OVER SPOT X. XING ACFT ON THE RAMP IS HAZARDOUS. RAMP CTL NEEDS TO WARN ACFT WHEN OTHER ACFT ARE PASSING THEM, BECAUSE OF OUR BLIND SPOTS.

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.