Air carrier X non adherence to ATC clearance TCASII RA climb from air carrier Y had less than standard separation separation from air carrier Z. Pilot deviation.

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Attributes
ACN	226961
Time
Date	199211
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : hdf
State Reference	CA
Altitude	msl bound lower : 10000 msl bound upper : 10000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	descent other
Route In Use	enroute : direct enroute airway : ont
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 4 controller non radar : 2 controller radar : 2
ASRS Report	226961
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : undershoot conflict : airborne less severe non adherence : clearance non adherence : required legal separation
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Air carrier X was en route sbound descending to 8000 ft. Air carrier Y was en route wbound descending to 10000 ft. Both aircraft had each other in sight. Air carrier Y was instructed to maintain visual separation with air carrier X, air carrier X received an RA on TCASII and climbed into air carrier Z. Neither aircraft data block indicated TCASII equipment.

Original NASA ASRS Text

Title: ACR X NON ADHERENCE TO ATC CLRNC TCASII RA CLB FROM ACR Y HAD LTSS SEPARATION FROM ACR Z. PLTDEV.

Narrative: ACR X WAS ENRTE SBOUND DSNDING TO 8000 FT. ACR Y WAS ENRTE WBOUND DSNDING TO 10000 FT. BOTH ACFT HAD EACH OTHER IN SIGHT. ACR Y WAS INSTRUCTED TO MAINTAIN VISUAL SEPARATION WITH ACR X, ACR X RECEIVED AN RA ON TCASII AND CLBED INTO ACR Z. NEITHER ACFT DATA BLOCK INDICATED TCASII EQUIP.

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.