Altitude deviation altitude excursion in flight crew response to TCASII RA.

Attributes
ACN	238411
Time
Date	199304
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : chs
State Reference	SC
Altitude	msl bound lower : 28000 msl bound upper : 28500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zjx
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : second officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 5000 flight time type : 1200
ASRS Report	238411
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
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 : exited adverse environment flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 1000
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

Flight ewr-mco, cruising at FL280, 80 mi south chs, TCASII alert to climb at 300 FPM for traffic below. We climbed to approximately 28500 ft and told ATC. They advised an small transport jet was climbing to FL270. ATC was busy and did not call the traffic to us. TCASII system worked perfectly and adequate separation remained. If ATC advised us of traffic climbing in front of us we would not have left the assigned altitude.

Original NASA ASRS Text

Title: ALTDEV ALT EXCURSION IN FLC RESPONSE TO TCASII RA.

Narrative: FLT EWR-MCO, CRUISING AT FL280, 80 MI S CHS, TCASII ALERT TO CLB AT 300 FPM FOR TFC BELOW. WE CLBED TO APPROX 28500 FT AND TOLD ATC. THEY ADVISED AN SMT JET WAS CLBING TO FL270. ATC WAS BUSY AND DID NOT CALL THE TFC TO US. TCASII SYS WORKED PERFECTLY AND ADEQUATE SEPARATION REMAINED. IF ATC ADVISED US OF TFC CLBING IN FRONT OF US WE WOULD NOT HAVE LEFT THE ASSIGNED ALT.

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.