At cruise in positive control area air carrier receives TCASII RA.

Attributes
ACN	239018
Time
Date	199304
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : psb
State Reference	PA
Altitude	msl bound lower : 20000 msl bound upper : 20700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 9000 flight time type : 3000
ASRS Report	239018
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 30000 vertical : 2000
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

After receiving a TCASII RA for traffic within 5 mi radius in approximately 10 O'clock position, 1300 ft relative altitude, followed TCASII command to climb. Required 700 ft deviation above assigned FL200 before 'clear of conflict.'

Original NASA ASRS Text

Title: AT CRUISE IN PCA ACR RECEIVES TCASII RA.

Narrative: AFTER RECEIVING A TCASII RA FOR TFC WITHIN 5 MI RADIUS IN APPROX 10 O'CLOCK POS, 1300 FT RELATIVE ALT, FOLLOWED TCASII COMMAND TO CLB. REQUIRED 700 FT DEV ABOVE ASSIGNED FL200 BEFORE 'CLR OF CONFLICT.'

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.