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Flight crew of an medium large transport air carrier aircraft made a missed approach at 400 ft AGL during a CAT III approach in response to a TCASII RA.
| Attributes | |
| ACN | 253623 |
| Time | |
| Date | 199310 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : sea |
| State Reference | WA |
| Altitude | agl bound lower : 400 agl bound upper : 400 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : sea |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | climbout : initial |
| Route In Use | departure 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 : 200 flight time total : 10300 flight time type : 600 |
| ASRS Report | 253623 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | Other |
| Miss Distance | horizontal : 12000 vertical : 200 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While shooting a CAT III autoland 16R approach with RVR fluctuating between 800 ft (when cleared for approach) and 1800, tower cleared an aircraft for takeoff with us well inside the marker. At 400 ft above touchdown, we received a TCASII RA commanding us to climb. Traffic was 12 O'clock and 200 ft below and climbing out 16 departure path. We executed a missed approach and were vectored for another CAT III approach, which resulted in an uneventful landing. My main concern is that the critical area for a CAT III approach was not kept clear and that tower would launch an aircraft so close to another aircraft in CAT III conditions.
Original NASA ASRS Text
Title: FLC OF AN MLG ACR ACFT MADE A MISSED APCH AT 400 FT AGL DURING A CAT III APCH IN RESPONSE TO A TCASII RA.
Narrative: WHILE SHOOTING A CAT III AUTOLAND 16R APCH WITH RVR FLUCTUATING BTWN 800 FT (WHEN CLRED FOR APCH) AND 1800, TWR CLRED AN ACFT FOR TKOF WITH US WELL INSIDE THE MARKER. AT 400 FT ABOVE TOUCHDOWN, WE RECEIVED A TCASII RA COMMANDING US TO CLB. TFC WAS 12 O'CLOCK AND 200 FT BELOW AND CLBING OUT 16 DEP PATH. WE EXECUTED A MISSED APCH AND WERE VECTORED FOR ANOTHER CAT III APCH, WHICH RESULTED IN AN UNEVENTFUL LNDG. MY MAIN CONCERN IS THAT THE CRITICAL AREA FOR A CAT III APCH WAS NOT KEPT CLR AND THAT TWR WOULD LAUNCH AN ACFT SO CLOSE TO ANOTHER ACFT IN CAT III CONDITIONS.
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.