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Aircraft 1 inbound to the airport received a TCASII alert requiring evasive action to be taken from aircraft 2.
| Attributes | |
| ACN | 276719 |
| Time | |
| Date | 199407 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : bwi |
| State Reference | MD |
| Altitude | msl bound lower : 4000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bwi tower : psf |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : flight engineer pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 240 flight time total : 3300 flight time type : 700 |
| ASRS Report | 276719 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 750 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Inbound to bwi airport, approximately 20 mi southeast of the airport. Instructed to proceed direct to the airport, maintain 4000 ft, report the field in sight for visual approach. Numerous aircraft in area (VFR and IFR). At this point, TCASII issues an RA with instructions to 'climb.' the captain picked up the conflicting aircraft visually and evasive action was taken. I (first officer) was flying and was visually able to avoid the conflicting aircraft. The conflicting aircraft was an air carrier B-727. The B-727 was at the same altitude (4000 ft MSL) and was turning toward the airport from our 10-11 O'clock position, substantially faster than our aircraft. We were approximately at 200 KTS at the time. No traffic separation or warning of a conflict was given by approach control from this aircraft. We were, at best estimate, between 500-1000 ft from the B-727. We visually idented the airport and were cleared for the visual approach to runway 33R. The B-727 proceeded to runway 33L without any more conflicts. An uneventful landing was made at bwi. Upon arrival at the terminal, the captain called the approach control and informed them of the occurrence. He was told that it would be looked into.
Original NASA ASRS Text
Title: ACFT 1 INBOUND TO THE ARPT RECEIVED A TCASII ALERT REQUIRING EVASIVE ACTION TO BE TAKEN FROM ACFT 2.
Narrative: INBOUND TO BWI ARPT, APPROX 20 MI SE OF THE ARPT. INSTRUCTED TO PROCEED DIRECT TO THE ARPT, MAINTAIN 4000 FT, RPT THE FIELD IN SIGHT FOR VISUAL APCH. NUMEROUS ACFT IN AREA (VFR AND IFR). AT THIS POINT, TCASII ISSUES AN RA WITH INSTRUCTIONS TO 'CLB.' THE CAPT PICKED UP THE CONFLICTING ACFT VISUALLY AND EVASIVE ACTION WAS TAKEN. I (FO) WAS FLYING AND WAS VISUALLY ABLE TO AVOID THE CONFLICTING ACFT. THE CONFLICTING ACFT WAS AN ACR B-727. THE B-727 WAS AT THE SAME ALT (4000 FT MSL) AND WAS TURNING TOWARD THE ARPT FROM OUR 10-11 O'CLOCK POS, SUBSTANTIALLY FASTER THAN OUR ACFT. WE WERE APPROX AT 200 KTS AT THE TIME. NO TFC SEPARATION OR WARNING OF A CONFLICT WAS GIVEN BY APCH CTL FROM THIS ACFT. WE WERE, AT BEST ESTIMATE, BTWN 500-1000 FT FROM THE B-727. WE VISUALLY IDENTED THE ARPT AND WERE CLRED FOR THE VISUAL APCH TO RWY 33R. THE B-727 PROCEEDED TO RWY 33L WITHOUT ANY MORE CONFLICTS. AN UNEVENTFUL LNDG WAS MADE AT BWI. UPON ARR AT THE TERMINAL, THE CAPT CALLED THE APCH CTL AND INFORMED THEM OF THE OCCURRENCE. HE WAS TOLD THAT IT WOULD BE LOOKED INTO.
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.