An F28-400 has an near midair collision with a be-A36 in ZSE airspace.

Attributes
ACN	382322
Time
Date	199710
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : sea
State Reference	WA
Altitude	msl bound lower : 12000 msl bound upper : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zse tower : vny
Operator	common carrier : air carrier
Make Model Name	F28 Mk 4000
Operating Under FAR Part	Part 121
Flight Phase	cruise other descent : approach
Route In Use	arrival other arrival star : star
Flight Plan	IFR
Aircraft 2
Make Model Name	Bonanza 36
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 18000 flight time type : 7000
ASRS Report	382322
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : nmac non adherence : far other anomaly other other spatial deviation other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	flight crew : took evasive action other
Consequence	other
Miss Distance	horizontal : 100 vertical : 50
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

Inbound to sea, level at 12000 ft, 250 KIAS. ATC advises VFR traffic 12 O'clock, 5 mi, no altitude reported, no mode C. TCASII issues TA. We are about 1000 ft above tops of overcast, clear above. First officer is flying manually, looking for traffic. Both first officer and self look down to reset course for arrival, look up, scan, traffic 1:30 O'clock position and 100 yards, same altitude, collision course, sebound. I grabbed controls and called traffic, simultaneously pulled up hard and banked left. Aircraft #2 passes below 50 ft and slightly behind us, maybe 100 ft or less. Reported near miss to ATC. Traffic trailing 8-10 mi, level at 12500 ft after our report and confirms traffic sebound at 12000 ft, bonanza or cherokee passing below them. Forward flight attendant was put to the floor in forward galley during evasive action. Suffered minor scrape to back from galley service door handle. No medical attention required. Continued working. Am filing appropriate near miss documentation with FSDO, poi for investigation.

Original NASA ASRS Text

Title: AN F28-400 HAS AN NMAC WITH A BE-A36 IN ZSE AIRSPACE.

Narrative: INBOUND TO SEA, LEVEL AT 12000 FT, 250 KIAS. ATC ADVISES VFR TFC 12 O'CLOCK, 5 MI, NO ALT RPTED, NO MODE C. TCASII ISSUES TA. WE ARE ABOUT 1000 FT ABOVE TOPS OF OVCST, CLR ABOVE. FO IS FLYING MANUALLY, LOOKING FOR TFC. BOTH FO AND SELF LOOK DOWN TO RESET COURSE FOR ARR, LOOK UP, SCAN, TFC 1:30 O'CLOCK POS AND 100 YARDS, SAME ALT, COLLISION COURSE, SEBOUND. I GRABBED CTLS AND CALLED TFC, SIMULTANEOUSLY PULLED UP HARD AND BANKED L. ACFT #2 PASSES BELOW 50 FT AND SLIGHTLY BEHIND US, MAYBE 100 FT OR LESS. RPTED NEAR MISS TO ATC. TFC TRAILING 8-10 MI, LEVEL AT 12500 FT AFTER OUR RPT AND CONFIRMS TFC SEBOUND AT 12000 FT, BONANZA OR CHEROKEE PASSING BELOW THEM. FORWARD FLT ATTENDANT WAS PUT TO THE FLOOR IN FORWARD GALLEY DURING EVASIVE ACTION. SUFFERED MINOR SCRAPE TO BACK FROM GALLEY SVC DOOR HANDLE. NO MEDICAL ATTN REQUIRED. CONTINUED WORKING. AM FILING APPROPRIATE NEAR MISS DOCUMENTATION WITH FSDO, POI FOR INVESTIGATION.

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.