<< >> NASA ASRS Report 592717, September 2003

A320 crew was passed while making an approach to runway 34R at sea. The passing air carrier aircraft was landing on runway 34L. Neither aircraft was a heavy.

Attributes
ACN	592717
Time
Date	200309
Day	Tue
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : sea.airport
State Reference	WA
Environment
Flight Conditions	VMC
Aircraft 1
Controlling Facilities	tower : sea.tower
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : sea.tower
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	592717
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : airborne critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	ATC Human Performance Airport Flight Crew Human Performance
Primary Problem	Ambiguous

Narrative:

Approach to sea was normal with first officer as PF. WX was clear. Approach control instructed us to maintain visual separation of aircraft ahead which was approaching runway 34L. We were approaching runway 34R with the preceding aircraft and airport clearly in sight. Another aircraft (I believe air carrier Y) was behind us as we turned to final approach. Approximately 1 mi from touchdown, I noticed that aircraft passing us on the left as he approached runway 34L. He landed ahead of us on runway 34L while we landed normally on runway 34R. The separation between us as he passed was unnervingly close and unexpected.

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Original NASA ASRS Text

Title: A320 CREW WAS PASSED WHILE MAKING AN APCH TO RWY 34R AT SEA. THE PASSING ACR ACFT WAS LNDG ON RWY 34L. NEITHER ACFT WAS A HVY.

Narrative: APCH TO SEA WAS NORMAL WITH FO AS PF. WX WAS CLR. APCH CTL INSTRUCTED US TO MAINTAIN VISUAL SEPARATION OF ACFT AHEAD WHICH WAS APCHING RWY 34L. WE WERE APCHING RWY 34R WITH THE PRECEDING ACFT AND ARPT CLRLY IN SIGHT. ANOTHER ACFT (I BELIEVE ACR Y) WAS BEHIND US AS WE TURNED TO FINAL APCH. APPROX 1 MI FROM TOUCHDOWN, I NOTICED THAT ACFT PASSING US ON THE L AS HE APCHED RWY 34L. HE LANDED AHEAD OF US ON RWY 34L WHILE WE LANDED NORMALLY ON RWY 34R. THE SEPARATION BTWN US AS HE PASSED WAS UNNERVINGLY CLOSE AND UNEXPECTED.

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.