Air carrier medium large transport altitude deviation excursion from clearance altitude in response ...

Attributes
ACN	169673
Time
Date	199102
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : lgb
State Reference	CA
Altitude	msl bound lower : 8000 msl bound upper : 8400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sna
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 10000
ASRS Report	169673
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 9000 flight time type : 3000
ASRS Report	169669
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : required legal separation
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 2000 vertical : 500
Supplementary
Air Traffic Incident	other

Narrative:

Approach called traffic initially at 6800' and climbing at 1 O'clock and same direction. We had leveled 8000' and obtained visibility on traffic. He would have cleared our aircraft ok, however TCAS increased from a TA to an RA, to which we were required to respond per TCAS procedure. We initiated a climb and advised ATC. We climbed to 8400' MSL before resuming normal flight at termination of TCAS advisory.

Original NASA ASRS Text

Title: ACR MLG ALT DEVIATION EXCURSION FROM CLRNC ALT IN RESPONSE TO TCAS II RA.

Narrative: APCH CALLED TFC INITIALLY AT 6800' AND CLBING AT 1 O'CLOCK AND SAME DIRECTION. WE HAD LEVELED 8000' AND OBTAINED VIS ON TFC. HE WOULD HAVE CLRED OUR ACFT OK, HOWEVER TCAS INCREASED FROM A TA TO AN RA, TO WHICH WE WERE REQUIRED TO RESPOND PER TCAS PROC. WE INITIATED A CLB AND ADVISED ATC. WE CLBED TO 8400' MSL BEFORE RESUMING NORMAL FLT AT TERMINATION OF TCAS ADVISORY.

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 medium large transport altitude deviation excursion from clearance altitude in response to TCAS ii RA.