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An air carrier medium large transport climbed in response to a TCASII command, then overshot it's altitude on return.
| Attributes | |
| ACN | 224242 |
| Time | |
| Date | 199210 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : scy airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 10800 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : lga |
| 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 |
| Route In Use | arrival other arrival star : star enroute airway : zfw |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : commercial pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 200 flight time total : 8000 flight time type : 2000 |
| ASRS Report | 224242 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| 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 flight crew : took evasive action |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
On scy 3 arrival to dfw, at refil intersection at 11000 ft MSL, we were in mixed WX (in and out of clouds). We had just passed by a heavy line of thunderstorms off our left and departure traffic was obviously being vectored to miss the same line. We had already received 2 TA's by TCASII. Aircraft climbing and turning, passing 1000 ft below us heading northeast. With first officer flying, we received a RA 'climb, climb.' I advised the first officer to climb immediately and cleared the airspace above. The first officer disconnected the autoplt and climbed approximately 1000 ft when we received 'clear of conflict.' the first officer then descended back toward 11000 ft as I attempted to contact a very busy approach control to advise them. The first officer overshot 11000 ft by 200 ft to 10800 ft as I talked to approach and told them we were returning to 11000 ft. Approached advised us they showed us at 10800 ft. We finally stabilized at 11000 ft with no further incident.
Original NASA ASRS Text
Title: AN ACR MLG CLBED IN RESPONSE TO A TCASII COMMAND, THEN OVERSHOT IT'S ALT ON RETURN.
Narrative: ON SCY 3 ARR TO DFW, AT REFIL INTXN AT 11000 FT MSL, WE WERE IN MIXED WX (IN AND OUT OF CLOUDS). WE HAD JUST PASSED BY A HVY LINE OF TSTMS OFF OUR L AND DEP TFC WAS OBVIOUSLY BEING VECTORED TO MISS THE SAME LINE. WE HAD ALREADY RECEIVED 2 TA'S BY TCASII. ACFT CLBING AND TURNING, PASSING 1000 FT BELOW US HDG NE. WITH FO FLYING, WE RECEIVED A RA 'CLB, CLB.' I ADVISED THE FO TO CLB IMMEDIATELY AND CLRED THE AIRSPACE ABOVE. THE FO DISCONNECTED THE AUTOPLT AND CLBED APPROX 1000 FT WHEN WE RECEIVED 'CLR OF CONFLICT.' THE FO THEN DSNDED BACK TOWARD 11000 FT AS I ATTEMPTED TO CONTACT A VERY BUSY APCH CTL TO ADVISE THEM. THE FO OVERSHOT 11000 FT BY 200 FT TO 10800 FT AS I TALKED TO APCH AND TOLD THEM WE WERE RETURNING TO 11000 FT. APCHED ADVISED US THEY SHOWED US AT 10800 FT. WE FINALLY STABILIZED AT 11000 FT WITH NO FURTHER INCIDENT.
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.