 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B727-200 flight crew experiences a TCASII RA while descending into the traffic pattern area north of mia, fl.
| Attributes | |
| ACN | 453083 |
| Time | |
| Date | 199910 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mia.airport |
| State Reference | FL |
| Altitude | msl bound lower : 6000 msl bound upper : 7200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mia.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach descent : vacating altitude |
| Route In Use | approach : traffic pattern arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : mia.tracon |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | climbout : intermediate altitude |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 453083 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas |
| Resolutory Action | flight crew : took evasive action |
| Miss Distance | horizontal : 9000 vertical : 300 |
| Supplementary | |
| Problem Areas | ATC Human Performance Airspace Structure |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
On mia approach, downwind runway 9L, heading 240 degrees, given clearance to descend from 8000 ft to 6000 ft. Passing 7200 ft, received TCASII TA followed immediately by TCASII RA commanding a 1500 FPM climb or greater. First officer followed TCASII instructions. At 8100 ft, 'climb' RA became 'monitor vertical speed' RA. Shortly afterwards, clear of conflict was received. We never made visual contact with the other aircraft. Also, we never received any TA from ATC until we told them that we were responding to the RA. The other aircraft appeared to pass within 1-2 mi on TCASII and minimum vertical separation was 300 ft. After our inquiry, approach did acknowledge other aircraft, but he did not seem to be concerned. Approach and landing were normal afterwards.
Original NASA ASRS Text
Title: A B727-200 FLC EXPERIENCES A TCASII RA WHILE DSNDING INTO THE TFC PATTERN AREA N OF MIA, FL.
Narrative: ON MIA APCH, DOWNWIND RWY 9L, HDG 240 DEGS, GIVEN CLRNC TO DSND FROM 8000 FT TO 6000 FT. PASSING 7200 FT, RECEIVED TCASII TA FOLLOWED IMMEDIATELY BY TCASII RA COMMANDING A 1500 FPM CLB OR GREATER. FO FOLLOWED TCASII INSTRUCTIONS. AT 8100 FT, 'CLB' RA BECAME 'MONITOR VERT SPD' RA. SHORTLY AFTERWARDS, CLR OF CONFLICT WAS RECEIVED. WE NEVER MADE VISUAL CONTACT WITH THE OTHER ACFT. ALSO, WE NEVER RECEIVED ANY TA FROM ATC UNTIL WE TOLD THEM THAT WE WERE RESPONDING TO THE RA. THE OTHER ACFT APPEARED TO PASS WITHIN 1-2 MI ON TCASII AND MINIMUM VERT SEPARATION WAS 300 FT. AFTER OUR INQUIRY, APCH DID ACKNOWLEDGE OTHER ACFT, BUT HE DID NOT SEEM TO BE CONCERNED. APCH AND LNDG WERE NORMAL AFTERWARDS.
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.