<< >> NASA ASRS Report 859371, November 2009

D10 controller and flight crew described similar call sign event when air carrier X took a descent issued to another.

Attributes
ACN	859371
Time
Date	200911
Local Time Of Day	1801-2400
Place
Locale Reference	D10.TRACON
State Reference	TX
Aircraft 1
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Person 1
Function	Approach
Qualification	Air Traffic Control Fully Certified
Person 2
Function	Pilot Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	ATC Issue All Types Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance

Narrative:

Air carrier X took a descent call meant for air carrier Y at siler. We did not hear air carrier X read back the descent. We should have noticed the similar sounding call signs and told the pilots.

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Original NASA ASRS Text

Title: D10 Controller and flight crew described similar call sign event when air carrier X took a descent issued to another.

Narrative: Air carrier X took a descent call meant for air carrier Y at SILER. We did not hear air carrier X read back the descent. We should have noticed the similar sounding call signs and told the pilots.

Data retrieved from NASA's ASRS site as of April 2012 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.