Flight crew of air carrier medium large transport aircraft deviated from assigned altitude in respon...

Attributes
ACN	226943
Time
Date	199211
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : lal
State Reference	FL
Altitude	msl bound lower : 11000 msl bound upper : 11300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : tpa
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 190 flight time total : 8670 flight time type : 130
ASRS Report	226943
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 160 flight time total : 9000 flight time type : 5000
ASRS Report	227216
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 150
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flying on top of broken layer estimated at 10200 ft MSL. Received TA (on TCASII unit) at 1 O'clock and 3 mi, aircraft seemed to be climbing. Aircraft was not shown on display prior to the TA. Within 30 seconds, TA went to RA with ivsi indication to climb 500 FPM. Aircraft was never located visually. Climbed to 11300 ft to avoid. Aircraft passed off of right wing. TCASII display indicated 150 ft below and 1 mi to the right of our aircraft. ATC at tampa departure indicated they were too busy to issue traffic on pop up aircraft. Normal approach and landing completed at srq.

Original NASA ASRS Text

Title: FLC OF ACR MLG ACFT DEVIATED FROM ASSIGNED ALT IN RESPONSE TO A TCASII RA.

Narrative: FLYING ON TOP OF BROKEN LAYER ESTIMATED AT 10200 FT MSL. RECEIVED TA (ON TCASII UNIT) AT 1 O'CLOCK AND 3 MI, ACFT SEEMED TO BE CLBING. ACFT WAS NOT SHOWN ON DISPLAY PRIOR TO THE TA. WITHIN 30 SECONDS, TA WENT TO RA WITH IVSI INDICATION TO CLB 500 FPM. ACFT WAS NEVER LOCATED VISUALLY. CLBED TO 11300 FT TO AVOID. ACFT PASSED OFF OF R WING. TCASII DISPLAY INDICATED 150 FT BELOW AND 1 MI TO THE R OF OUR ACFT. ATC AT TAMPA DEP INDICATED THEY WERE TOO BUSY TO ISSUE TFC ON POP UP ACFT. NORMAL APCH AND LNDG COMPLETED AT SRQ.

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.

Flight crew of air carrier medium large transport aircraft deviated from assigned altitude in response to a TCASII RA.