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Captain of medium large transport air carrier aircraft briefly climbed from assigned altitude after a TCASII RA resulting in a near midair collision with the TCASII reported traffic.
| Attributes | |
| ACN | 207085 |
| Time | |
| Date | 199204 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mdw |
| State Reference | IL |
| Altitude | msl bound lower : 4000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 230 flight time total : 12000 flight time type : 9000 |
| ASRS Report | 207085 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| 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 : 100 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Approximately 8 DME from the IAF, on an intercept heading to join the localizer, TCASII reported þtfcþ followed very shortly by a RA to þclb.þ autoplt was disconnected and a climb was initiated to avoid the traffic. Advised ATC we were climbing to avoid the traffic. Controller failed to point out traffic. Once clear of conflict, descent back to assigned altitude and continued approach.
Original NASA ASRS Text
Title: CAPT OF MLG ACR ACFT BRIEFLY CLBED FROM ASSIGNED ALT AFTER A TCASII RA RESULTING IN A NMAC WITH THE TCASII RPTED TFC.
Narrative: APPROX 8 DME FROM THE IAF, ON AN INTERCEPT HDG TO JOIN THE LOC, TCASII RPTED þTFCþ FOLLOWED VERY SHORTLY BY A RA TO þCLB.þ AUTOPLT WAS DISCONNECTED AND A CLB WAS INITIATED TO AVOID THE TFC. ADVISED ATC WE WERE CLBING TO AVOID THE TFC. CTLR FAILED TO POINT OUT TFC. ONCE CLR OF CONFLICT, DSCNT BACK TO ASSIGNED ALT AND CONTINUED APCH.
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.