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Possible less than standard separation between air carrier X and air carrier Y. Possible system error.
| Attributes | |
| ACN | 168794 |
| Time | |
| Date | 199101 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : iah |
| State Reference | TX |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | landing other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 225 flight time total : 12500 flight time type : 8500 |
| ASRS Report | 168794 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 240 flight time total : 9300 flight time type : 3500 |
| ASRS Report | 169239 |
| Events | |
| Anomaly | conflict : ground less severe |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Miss Distance | horizontal : 10000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
Air carrier X on a 3 mi final to runway 14L at iah the tower cleared air carrier Y into position on same runway. We were asked to slow to minimum approach speed and air carrier Y was cleared for immediate takeoff. The tower then cleared us to land. We touched down in the T/D zone as air carrier Y was rotating at the other end of the runway. During the final few hundred ft I considered telling the first officer to go around (he was flying), but since there was other traffic landing on runways 26, 27, and 14R, I felt that landing would be the safest course of action since I didn't know the exact positions of the other aircraft landing on those other runways. I felt that I would overtake the departing air carrier Y if I went straight out.
Original NASA ASRS Text
Title: POSSIBLE LESS THAN STANDARD SEPARATION BETWEEN ACR X AND ACR Y. POSSIBLE SYSTEM ERROR.
Narrative: ACR X ON A 3 MI FINAL TO RWY 14L AT IAH THE TWR CLRED ACR Y INTO POS ON SAME RWY. WE WERE ASKED TO SLOW TO MINIMUM APCH SPD AND ACR Y WAS CLRED FOR IMMEDIATE TKOF. THE TWR THEN CLRED US TO LAND. WE TOUCHED DOWN IN THE T/D ZONE AS ACR Y WAS ROTATING AT THE OTHER END OF THE RWY. DURING THE FINAL FEW HUNDRED FT I CONSIDERED TELLING THE F/O TO GO AROUND (HE WAS FLYING), BUT SINCE THERE WAS OTHER TFC LNDG ON RWYS 26, 27, AND 14R, I FELT THAT LNDG WOULD BE THE SAFEST COURSE OF ACTION SINCE I DIDN'T KNOW THE EXACT POSITIONS OF THE OTHER ACFT LNDG ON THOSE OTHER RWYS. I FELT THAT I WOULD OVERTAKE THE DEPARTING ACR Y IF I WENT STRAIGHT OUT.
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.