 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An air carrier medium large transport climbed in response to a TCASII command. When returning to its assigned altitude, it overshot.
| Attributes | |
| ACN | 226657 |
| Time | |
| Date | 199211 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bwi |
| State Reference | MD |
| Altitude | msl bound lower : 3600 msl bound upper : 4400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bwi |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 15000 flight time type : 5000 |
| ASRS Report | 226657 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On radar vectors to runway 33L at bwi during base leg turn we had TCASII alert 'climb, climb.' we complied. Climbed 400 ft. RA went off screen. We then returned to our altitude of 4000 ft. As we were approaching 4000 ft, we both made visual on our conflict alert. As we both made the visual, we were somewhat concerned as to why approach control did not call out traffic. During this period, the first officer let the aircraft drift about 400 ft below our assigned altitude of 4000 ft. We immediately returned to 4000 ft and landed shortly thereafter.
Original NASA ASRS Text
Title: AN ACR MLG CLBED IN RESPONSE TO A TCASII COMMAND. WHEN RETURNING TO ITS ASSIGNED ALT, IT OVERSHOT.
Narrative: ON RADAR VECTORS TO RWY 33L AT BWI DURING BASE LEG TURN WE HAD TCASII ALERT 'CLB, CLB.' WE COMPLIED. CLBED 400 FT. RA WENT OFF SCREEN. WE THEN RETURNED TO OUR ALT OF 4000 FT. AS WE WERE APCHING 4000 FT, WE BOTH MADE VISUAL ON OUR CONFLICT ALERT. AS WE BOTH MADE THE VISUAL, WE WERE SOMEWHAT CONCERNED AS TO WHY APCH CTL DID NOT CALL OUT TFC. DURING THIS PERIOD, THE FO LET THE ACFT DRIFT ABOUT 400 FT BELOW OUR ASSIGNED ALT OF 4000 FT. WE IMMEDIATELY RETURNED TO 4000 FT AND LANDED SHORTLY THEREAFTER.
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.