Air carrier at level flight responds to TCASII RA and climbs. Other aircraft was climbing below air ...

Attributes
ACN	259405
Time
Date	199312
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : elp
State Reference	TX
Altitude	msl bound lower : 27000 msl bound upper : 29000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zab
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute airway : zab
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 150 flight time total : 10000 flight time type : 150
ASRS Report	259405
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
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
Consequence	Other
Miss Distance	horizontal : 24000 vertical : 1000
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

While cruising at FL280 TCASII issued an RA with associated voice and ivsi commands to 'climb.' target was observed on TCASII screen turning red in color and indicating 1000 ft then 800 ft. Autoplt was disconnected and manual climb initiated to FL290. Target was observed on screen 1000 ft. Visual contact was made. ZAB was informed of our TCASII alert and traffic was idented as air carrier airlines Y. Center advised air carrier Y was indicating FL270. After passing descent was initiated to FL280. Full explanation was given on altitude deviation, cause, and outcome. ZAB indicated by voice that 'no action' regarding incident would be taken. Supplemental information from acn 259061: I was working air carrier Y climbing to FL270, with air carrier X at FL280 being worked by another controller. I advised air carrier Y he might want to slow his climb because air carrier X was TCASII equipped and keep an RA alert from going off.

Original NASA ASRS Text

Title: ACR AT LEVEL FLT RESPONDS TO TCASII RA AND CLBS. OTHER ACFT WAS CLBING BELOW ACR.

Narrative: WHILE CRUISING AT FL280 TCASII ISSUED AN RA WITH ASSOCIATED VOICE AND IVSI COMMANDS TO 'CLB.' TARGET WAS OBSERVED ON TCASII SCREEN TURNING RED IN COLOR AND INDICATING 1000 FT THEN 800 FT. AUTOPLT WAS DISCONNECTED AND MANUAL CLB INITIATED TO FL290. TARGET WAS OBSERVED ON SCREEN 1000 FT. VISUAL CONTACT WAS MADE. ZAB WAS INFORMED OF OUR TCASII ALERT AND TFC WAS IDENTED AS ACR AIRLINES Y. CTR ADVISED ACR Y WAS INDICATING FL270. AFTER PASSING DSCNT WAS INITIATED TO FL280. FULL EXPLANATION WAS GIVEN ON ALTDEV, CAUSE, AND OUTCOME. ZAB INDICATED BY VOICE THAT 'NO ACTION' REGARDING INCIDENT WOULD BE TAKEN. SUPPLEMENTAL INFORMATION FROM ACN 259061: I WAS WORKING ACR Y CLBING TO FL270, WITH ACR X AT FL280 BEING WORKED BY ANOTHER CTLR. I ADVISED ACR Y HE MIGHT WANT TO SLOW HIS CLB BECAUSE ACR X WAS TCASII EQUIPPED AND KEEP AN RA ALERT FROM GOING OFF.

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.

Air carrier at level flight responds to TCASII RA and climbs. Other aircraft was climbing below air carrier.