A B757 crew, after being issued a TA from sea approach control, received a climb RA from TCASII.

Attributes
ACN	549367
Time
Date	200206
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : sea.airport
State Reference	WA
Altitude	agl single value : 1000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : s46.tracon tower : sea.tower
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	approach : visual approach : traffic pattern
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : sea.tower
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 161 flight time total : 4185 flight time type : 538
ASRS Report	549367
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	altitude deviation : overshoot conflict : airborne critical
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance controller : issued advisory flight crew : executed go around other
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	ATC Human Performance

Narrative:

Aircraft #1 was on final for a visual approach to runway 16L at sea. During approach, ATC informed aircraft #1 that aircraft #2 was on a visual approach right base for runway 16R with aircraft #1 in sight. On short final with tower, at approximately 1000 ft AGL, aircraft #1 received a TCASII advisory (TA). Traffic was visually looked for off the right side of aircraft #1, but no visual contact was made. Then a TCASII RA occurred. Aircraft #1 complied with and initiated an RA maneuver with no traffic in sight, which was a steep climb. Aircraft #1 advised tower that it was on 'the go' (while still looking for traffic). Tower issued a clearance of runway heading, climb to 2000 ft. Aircraft #1 continued the RA/go around maneuvers on runway heading with a climb to approximately 2250 ft then leveling at 2000 ft when the maneuver was complete. During this RA, aircraft #1 never had visual contact with the indicated target. Aircraft #1 could not determine if the RA target was aircraft #2. Aircraft #1 was handed off to departure. Aircraft #1 requested an ILS approach to runway 16R. Tower was informed by aircraft #1 that 'the go around' was initiated on the previous visual approach because of an RA. Aircraft #1 landed uneventfully on runway 16R.

Original NASA ASRS Text

Title: A B757 CREW, AFTER BEING ISSUED A TA FROM SEA APCH CTL, RECEIVED A CLB RA FROM TCASII.

Narrative: ACFT #1 WAS ON FINAL FOR A VISUAL APCH TO RWY 16L AT SEA. DURING APCH, ATC INFORMED ACFT #1 THAT ACFT #2 WAS ON A VISUAL APCH R BASE FOR RWY 16R WITH ACFT #1 IN SIGHT. ON SHORT FINAL WITH TWR, AT APPROX 1000 FT AGL, ACFT #1 RECEIVED A TCASII ADVISORY (TA). TFC WAS VISUALLY LOOKED FOR OFF THE R SIDE OF ACFT #1, BUT NO VISUAL CONTACT WAS MADE. THEN A TCASII RA OCCURRED. ACFT #1 COMPLIED WITH AND INITIATED AN RA MANEUVER WITH NO TFC IN SIGHT, WHICH WAS A STEEP CLB. ACFT #1 ADVISED TWR THAT IT WAS ON 'THE GO' (WHILE STILL LOOKING FOR TFC). TWR ISSUED A CLRNC OF RWY HDG, CLB TO 2000 FT. ACFT #1 CONTINUED THE RA/GAR MANEUVERS ON RWY HDG WITH A CLB TO APPROX 2250 FT THEN LEVELING AT 2000 FT WHEN THE MANEUVER WAS COMPLETE. DURING THIS RA, ACFT #1 NEVER HAD VISUAL CONTACT WITH THE INDICATED TARGET. ACFT #1 COULD NOT DETERMINE IF THE RA TARGET WAS ACFT #2. ACFT #1 WAS HANDED OFF TO DEP. ACFT #1 REQUESTED AN ILS APCH TO RWY 16R. TWR WAS INFORMED BY ACFT #1 THAT 'THE GAR' WAS INITIATED ON THE PREVIOUS VISUAL APCH BECAUSE OF AN RA. ACFT #1 LANDED UNEVENTFULLY ON RWY 16R.

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.