 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B733 flight crew initiate evasive TCASII climb after ZKC reverse course heading assignment and amended altitude change. B733 flight crew observe another air carrier below and away from their aircraft.
| Attributes | |
| ACN | 498449 |
| Time | |
| Date | 200101 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| State Reference | MO |
| Altitude | msl bound lower : 29000 msl bound upper : 29700 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zkc.artcc tower : pbi.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : enroute altitude change |
| Route In Use | arrival star : braymer |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zkc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 240 flight time total : 7000 flight time type : 4000 |
| ASRS Report | 498450 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 15000 flight time type : 10000 |
| ASRS Report | 498449 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne critical |
| Independent Detector | aircraft equipment : tcas other controllera other flight crewa other flight crewb |
| Resolutory Action | flight crew : returned to assigned altitude |
| Miss Distance | horizontal : 15000 vertical : 700 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure |
Narrative:
Approximately 35 NM east of bqs on descent to mci with clearance to FL280. Passing through FL297, ZKC told us to amend altitude to FL290, then told us to turn immediately left to heading 090 degrees, which was approximately a 180 degree turn. I used 45 degrees of bank to get around turn. Soon thereafter, we got an RA to climb. Air carrier Y was approximately 700 ft below, but 2-3 mi to our right. The RA lasted approximately 6 seconds. We were cleared back to bqs. Nothing was said by ATC to us about the cause of the turn or the amended altitude. I do not believe there were any deviations from clrncs by us.
Original NASA ASRS Text
Title: B733 FLC INITIATE EVASIVE TCASII CLB AFTER ZKC REVERSE COURSE HDG ASSIGNMENT AND AMENDED ALT CHANGE. B733 FLC OBSERVE ANOTHER ACR BELOW AND AWAY FROM THEIR ACFT.
Narrative: APPROX 35 NM E OF BQS ON DSCNT TO MCI WITH CLRNC TO FL280. PASSING THROUGH FL297, ZKC TOLD US TO AMEND ALT TO FL290, THEN TOLD US TO TURN IMMEDIATELY L TO HDG 090 DEGS, WHICH WAS APPROX A 180 DEG TURN. I USED 45 DEGS OF BANK TO GET AROUND TURN. SOON THEREAFTER, WE GOT AN RA TO CLB. ACR Y WAS APPROX 700 FT BELOW, BUT 2-3 MI TO OUR R. THE RA LASTED APPROX 6 SECONDS. WE WERE CLRED BACK TO BQS. NOTHING WAS SAID BY ATC TO US ABOUT THE CAUSE OF THE TURN OR THE AMENDED ALT. I DO NOT BELIEVE THERE WERE ANY DEVS FROM CLRNCS BY US.
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.