<< >> NASA ASRS Report 740582, May 2007

B777 flight crew reports misunderstanding with egll TRACON concerning their assigned runway. Crew believed they were cleared for runway 27R and the controller believed runway 27L.

Attributes
ACN	740582
Time
Date	200705
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : egll.airport
State Reference	FO
Altitude	msl single value : 4000
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B777-200
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : relief pilot
Experience	flight time last 90 days : 250 flight time total : 18000 flight time type : 600
ASRS Report	740582
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : clearance other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance flight crew : returned to intended or assigned course
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

Upon leaving holding at ock; egll approach issued a heading and said 'runway 27R.' two controllers later; we were given a heading to intercept runway 27R localizer. When we flew through runway 27L localizer; the controller gave us a corrective heading to intercept runway 27L. We were told that we should have been on runway 27R. We told him that the final controller issued us a heading to intercept runway 27R. The controller said nothing and re-cleared us to runway 27L. No traffic in the area. No incident.

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Original NASA ASRS Text

Title: B777 FLT CREW RPTS MISUNDERSTANDING WITH EGLL TRACON CONCERNING THEIR ASSIGNED RWY. CREW BELIEVED THEY WERE CLRED FOR RWY 27R AND THE CTLR BELIEVED RWY 27L.

Narrative: UPON LEAVING HOLDING AT OCK; EGLL APPROACH ISSUED A HEADING AND SAID 'RWY 27R.' TWO CONTROLLERS LATER; WE WERE GIVEN A HEADING TO INTERCEPT RWY 27R LOCALIZER. WHEN WE FLEW THROUGH RWY 27L LOC; THE CONTROLLER GAVE US A CORRECTIVE HEADING TO INTERCEPT RWY 27L. WE WERE TOLD THAT WE SHOULD HAVE BEEN ON RWY 27R. WE TOLD HIM THAT THE FINAL CONTROLLER ISSUED US A HEADING TO INTERCEPT RWY 27R. THE CONTROLLER SAID NOTHING AND RE-CLEARED US TO RWY 27L. NO TRAFFIC IN THE AREA. NO INCIDENT.

Data retrieved from NASA's ASRS site as of January 2009 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.