Air carrier X non adherence to ATC clearance TCASII RA descend from aircraft Y.

Attributes
ACN	243199
Time
Date	199306
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : phl
State Reference	PA
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : phl
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
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 : 300 flight time total : 10000 flight time type : 6000
ASRS Report	243199
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : undershoot conflict : airborne less severe non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Air carrier X during climb out of phl on 100 degree heading, I received an RA to descend approximately 1500-2000 FPM. I complied with the RA and at about 5000 ft another air carrier Y passed overhead. We informed the controller (departure) of the compliance and resumed our climb to 10000 ft. When questioned, the controller said he had the other traffic also on radar, but thought we had a better rate of climb and therefore did not call traffic to either aircraft.

Original NASA ASRS Text

Title: ACR X NON ADHERENCE TO ATC CLRNC TCASII RA DSND FROM ACFT Y.

Narrative: ACR X DURING CLB OUT OF PHL ON 100 DEG HDG, I RECEIVED AN RA TO DSND APPROX 1500-2000 FPM. I COMPLIED WITH THE RA AND AT ABOUT 5000 FT ANOTHER ACR Y PASSED OVERHEAD. WE INFORMED THE CTLR (DEP) OF THE COMPLIANCE AND RESUMED OUR CLB TO 10000 FT. WHEN QUESTIONED, THE CTLR SAID HE HAD THE OTHER TFC ALSO ON RADAR, BUT THOUGHT WE HAD A BETTER RATE OF CLB AND THEREFORE DID NOT CALL TFC TO EITHER ACFT.

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.