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

Attributes
ACN	239563
Time
Date	199304
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : shv
State Reference	LA
Altitude	msl bound lower : 29000 msl bound upper : 30000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 180 flight time total : 11000 flight time type : 5000
ASRS Report	239563
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 : returned to intended course or assigned course flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 1000
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

Flight was level at FL290 over lufkin, tx. We were proceeding direct to shv. Another air carrier flight below us was cleared to FL280. Our TCASII emitted a climb RA indicating approximately 3000 FPM. We climbed immediately and were clear of conflict when we reached FL300. After TCASII indicated 'clear of conflict' we notified center of the RA and descending back to FL290. I do not think the other flight ever violated their airspace, however, I think the rate of closure was great and subsequently caused TCASII to issue an RA.

Original NASA ASRS Text

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

Narrative: FLT WAS LEVEL AT FL290 OVER LUFKIN, TX. WE WERE PROCEEDING DIRECT TO SHV. ANOTHER ACR FLT BELOW US WAS CLRED TO FL280. OUR TCASII EMITTED A CLB RA INDICATING APPROX 3000 FPM. WE CLBED IMMEDIATELY AND WERE CLR OF CONFLICT WHEN WE REACHED FL300. AFTER TCASII INDICATED 'CLR OF CONFLICT' WE NOTIFIED CTR OF THE RA AND DSNDING BACK TO FL290. I DO NOT THINK THE OTHER FLT EVER VIOLATED THEIR AIRSPACE, HOWEVER, I THINK THE RATE OF CLOSURE WAS GREAT AND SUBSEQUENTLY CAUSED TCASII TO ISSUE AN RA.

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.