Air carrier medium large transport takeoff in WX reported below airport minimums for takeoff.

Attributes
ACN	176244
Time
Date	199104
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sea
State Reference	WA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : atp pilot : commercial
Experience	flight time last 90 days : 84 flight time total : 2280 flight time type : 780
ASRS Report	176244
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 170 flight time total : 18750 flight time type : 12400
ASRS Report	176161
Events
Anomaly	non adherence : far non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On taxi out for takeoff on runway 16L at sea, RVR was reported for T/D midfield and rollout. The minimum reported was 1100. We referenced the airport chart for takeoff minimums and saw RVR 600 T/D, 600 midfield and 600 rollout. After departing on runway 16L, we looked at the airport chart again and found that the 600 RVR minimums referred to runway 16R. Takeoff minimums for runway 16L are 1600 RVR with no reference to T/D, midfield rollout. Hearing three RVR readings, all of which were 1100 or above, was a key in our minds that we had what we thought were minimums for our assigned departure runway. We all use ques to alert us to potential problems. In this case, we saw three minimum RVR indications of 600 on the airport chart. Hearing three RVR readings above 600, satisfied our concern for our takeoff minimums. I consider myself a vigilant pilot. In the future I will be even more aware of potential pitfalls and even more vigilant to guard against them.

Original NASA ASRS Text

Title: ACR MLG TKOF IN WX REPORTED BELOW ARPT MINIMUMS FOR TKOF.

Narrative: ON TAXI OUT FOR TKOF ON RWY 16L AT SEA, RVR WAS RPTED FOR T/D MIDFIELD AND ROLLOUT. THE MINIMUM RPTED WAS 1100. WE REFERENCED THE ARPT CHART FOR TKOF MINIMUMS AND SAW RVR 600 T/D, 600 MIDFIELD AND 600 ROLLOUT. AFTER DEPARTING ON RWY 16L, WE LOOKED AT THE ARPT CHART AGAIN AND FOUND THAT THE 600 RVR MINIMUMS REFERRED TO RWY 16R. TKOF MINIMUMS FOR RWY 16L ARE 1600 RVR WITH NO REFERENCE TO T/D, MIDFIELD ROLLOUT. HEARING THREE RVR READINGS, ALL OF WHICH WERE 1100 OR ABOVE, WAS A KEY IN OUR MINDS THAT WE HAD WHAT WE THOUGHT WERE MINIMUMS FOR OUR ASSIGNED DEP RWY. WE ALL USE QUES TO ALERT US TO POTENTIAL PROBS. IN THIS CASE, WE SAW THREE MINIMUM RVR INDICATIONS OF 600 ON THE ARPT CHART. HEARING THREE RVR READINGS ABOVE 600, SATISFIED OUR CONCERN FOR OUR TKOF MINIMUMS. I CONSIDER MYSELF A VIGILANT PLT. IN THE FUTURE I WILL BE EVEN MORE AWARE OF POTENTIAL PITFALLS AND EVEN MORE VIGILANT TO GUARD AGAINST THEM.

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.