Air carrier crew had an near midair collision and TCASII RA in pdx class east airspace.

Attributes
ACN	476247
Time
Date	200005
Day	Sat
Place
Locale Reference	airport : pdx.airport
State Reference	OR
Altitude	msl single value : 3500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : p80.tracon
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent : vacating altitude
Route In Use	arrival star : bonvl 3
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 175 flight time total : 28000 flight time type : 2000
ASRS Report	476247
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	other anomaly other
Independent Detector	aircraft equipment : tcas other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory controller : issued new clearance flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 100
Supplementary
Problem Areas	FAA Airspace Structure
Primary Problem	Airspace Structure

Narrative:

On descent at about 3500 ft MSL received TCASII and a call from pdx approach to turn left to 180 degrees at same time TCASII 'climb, climb, climb.' first officer and jump seat [occupant] saw aircraft at 100 ft off right side of aircraft. Called duty (TRACON) supervisor on ground. He reported problem with small aircraft in columbia river gorge. When winds pick up, they climb into approach corridor, which is not class C airspace. When problem gets too bad, ZSE shoots down bonvl arrs. Doesn't make sense -- it should be protected airspace.

Original NASA ASRS Text

Title: ACR CREW HAD AN NMAC AND TCASII RA IN PDX CLASS E AIRSPACE.

Narrative: ON DSCNT AT ABOUT 3500 FT MSL RECEIVED TCASII AND A CALL FROM PDX APCH TO TURN L TO 180 DEGS AT SAME TIME TCASII 'CLB, CLB, CLB.' FO AND JUMP SEAT [OCCUPANT] SAW ACFT AT 100 FT OFF R SIDE OF ACFT. CALLED DUTY (TRACON) SUPVR ON GND. HE RPTED PROB WITH SMALL ACFT IN COLUMBIA RIVER GORGE. WHEN WINDS PICK UP, THEY CLB INTO APCH CORRIDOR, WHICH IS NOT CLASS C AIRSPACE. WHEN PROB GETS TOO BAD, ZSE SHOOTS DOWN BONVL ARRS. DOESN'T MAKE SENSE -- IT SHOULD BE PROTECTED AIRSPACE.

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.