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

Attributes
ACN	195211
Time
Date	199111
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : stl
State Reference	MO
Altitude	msl bound lower : 10000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : stl tower : oak
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 7800 flight time type : 1200
ASRS Report	195211
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 120 flight time total : 15000 flight time type : 6500
ASRS Report	195210
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Miss Distance	horizontal : 300 vertical : 1000
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

While on approach to stl (level 10000 ft, heading 190 degrees, vectors for 30R runway) we received a TA from TCASII, traffic at 1-1:30, 200 ft below us, level.' this was followed by a TA from approach control. Immediately, our TCASII said 'climb, climb!' so we left 10000 ft and advised the controller. We leveled at 11000 ft and when 'clear of conflict' returned to 10000. Both the controller and us were pleased on how well TCASII aided in situation. No passenger and/or crew were injured by climb.

Original NASA ASRS Text

Title: ACR MLG ALTDEV EXCURSION FROM CLRNC ALT IN RESPONSE TO TCASII RA.

Narrative: WHILE ON APCH TO STL (LEVEL 10000 FT, HDG 190 DEGS, VECTORS FOR 30R RWY) WE RECEIVED A TA FROM TCASII, TFC AT 1-1:30, 200 FT BELOW US, LEVEL.' THIS WAS FOLLOWED BY A TA FROM APCH CTL. IMMEDIATELY, OUR TCASII SAID 'CLB, CLB!' SO WE LEFT 10000 FT AND ADVISED THE CTLR. WE LEVELED AT 11000 FT AND WHEN 'CLR OF CONFLICT' RETURNED TO 10000. BOTH THE CTLR AND US WERE PLEASED ON HOW WELL TCASII AIDED IN SITUATION. NO PAX AND/OR CREW WERE INJURED BY CLB.

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 TCASII RA.