<< >> NASA ASRS Report 335370, May 1996

TCASII. Flight crew followed RA and climbed 500 ft. Intruder aircraft was climbing below reporter aircraft and leveled 1000 ft below.

Attributes
ACN	335370
Time
Date	199605
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : zjx
State Reference	FL
Altitude	msl bound lower : 29000 msl bound upper : 29500
Aircraft 1
Controlling Facilities	artcc : zjx
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	335370
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	335055
Events
Anomaly	altitude deviation : excursion from assigned altitude other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

Location: approximately 30 NM southwest of tenni intersection, proceed while cruising at FL290 direct to tenni intersection following WX deviation in the vicinity of colliers VOR. Captain was flying and first officer was PNF when the TCASII sounded an RA and commanded a 1500 FPM climb. Captain disconnected the autoplt and complied with the RA guidance. The target aircraft was 2600 ft below and climbing. At FL295 TCASII issued monitor vertical speed. The other aircraft leveled at FL280. First officer notified ZJX of altitude deviation in response to RA and indicated we were returning to our assigned altitude. The ATC controller said that there were no other conflicts. He asked if we wished to file a report. We did not wish to file a formal report.

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Original NASA ASRS Text

Title: TCASII. FLC FOLLOWED RA AND CLBED 500 FT. INTRUDER ACFT WAS CLBING BELOW RPTR ACFT AND LEVELED 1000 FT BELOW.

Narrative: LOCATION: APPROX 30 NM SW OF TENNI INTXN, PROCEED WHILE CRUISING AT FL290 DIRECT TO TENNI INTXN FOLLOWING WX DEV IN THE VICINITY OF COLLIERS VOR. CAPT WAS FLYING AND FO WAS PNF WHEN THE TCASII SOUNDED AN RA AND COMMANDED A 1500 FPM CLB. CAPT DISCONNECTED THE AUTOPLT AND COMPLIED WITH THE RA GUIDANCE. THE TARGET ACFT WAS 2600 FT BELOW AND CLBING. AT FL295 TCASII ISSUED MONITOR VERT SPD. THE OTHER ACFT LEVELED AT FL280. FO NOTIFIED ZJX OF ALTDEV IN RESPONSE TO RA AND INDICATED WE WERE RETURNING TO OUR ASSIGNED ALT. THE ATC CTLR SAID THAT THERE WERE NO OTHER CONFLICTS. HE ASKED IF WE WISHED TO FILE A RPT. WE DID NOT WISH TO FILE A FORMAL RPT.

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.