Air carrier X TCASII TA RA had near midair collision with VFR aircraft. Evasive action descend. See ...

Attributes
ACN	290024
Time
Date	199411
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : cew
State Reference	FL
Altitude	msl bound lower : 10500 msl bound upper : 11700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	DC-9 50
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : direct enroute airway : zjx
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent other
Route In Use	enroute : direct
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 20000 flight time type : 15000
ASRS Report	290024
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : atp
Experience	flight time last 90 days : 250 flight time total : 8670 flight time type : 2700
ASRS Report	290083
Events
Anomaly	altitude deviation : undershoot conflict : nmac non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Air carrier X climbing through approximately 11500 ft with clearance to 13000 ft at approximately 2500 FPM. TCASII issued TA for traffic Y at 12 O'clock high and slightly above immediately followed by an RA to descend rapidly. TCASII RA complied with, descended to about 10500 ft. TCASII announced clear of conflict and climb resumed. Advised ATC during evasive maneuver and they acknowledged traffic at 11700 ft. Resumed climb after clear.

Original NASA ASRS Text

Title: ACR X TCASII TA RA HAD NMAC WITH VFR ACFT. EVASIVE ACTION DSND. SEE AND AVOID CONCEPT.

Narrative: ACR X CLBING THROUGH APPROX 11500 FT WITH CLRNC TO 13000 FT AT APPROX 2500 FPM. TCASII ISSUED TA FOR TFC Y AT 12 O'CLOCK HIGH AND SLIGHTLY ABOVE IMMEDIATELY FOLLOWED BY AN RA TO DSND RAPIDLY. TCASII RA COMPLIED WITH, DSNDED TO ABOUT 10500 FT. TCASII ANNOUNCED CLR OF CONFLICT AND CLB RESUMED. ADVISED ATC DURING EVASIVE MANEUVER AND THEY ACKNOWLEDGED TFC AT 11700 FT. RESUMED CLB AFTER CLR.

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.

Air carrier X TCASII TA RA had near midair collision with VFR aircraft. Evasive action descend. See and avoid concept.