Air carrier captain reported complying with a TCAS RA on climb out from sea runway 16C after followi...

Attributes
ACN	1496964
Time
Date	201711
Local Time Of Day	0601-1200
Place
Locale Reference	SEA.Tower
State Reference	WA
Environment
Light	Daylight
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict

Narrative:

While on runway 16C in sea; tower advised us that traffic departing 16L was an early turn out and then said we were cleared for takeoff. Around 1400 feet MSL the aircraft prompted an immediate RA with no prior TA. The command was simple; reduce vertical speed. I was still hand flying so I was able to comply immediately and after about 5-10 secs the aircraft instructed us that we were clear. The flight was then continued without incident.

Original NASA ASRS Text

Title: Air Carrier Captain reported complying with a TCAS RA on climb out from SEA RWY 16C after following traffic departing from RWY 16L.

Narrative: While on runway 16C in SEA; Tower advised us that traffic departing 16L was an early turn out and then said we were cleared for takeoff. Around 1400 feet MSL the aircraft prompted an immediate RA with no prior TA. The command was simple; reduce vertical speed. I was still hand flying so I was able to comply immediately and after about 5-10 secs the aircraft instructed us that we were clear. The flight was then continued without incident.

Data retrieved from NASA's ASRS site 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.

Air carrier captain reported complying with a TCAS RA on climb out from sea runway 16C after following traffic departing from runway 16L.