 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Two medium large transport aircraft aligning for approach to parallel runways at stl had near midair collision when aircraft on left overshot his alignment and intruded on the right hand aircraft's airspace for alignment with the right runway.
| Attributes | |
| ACN | 111196 |
| Time | |
| Date | 198905 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : stl |
| State Reference | MO |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : stl |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | descent : approach descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 10000 flight time type : 100 |
| ASRS Report | 111196 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac non adherence : clearance non adherence : published procedure other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Miss Distance | horizontal : 400 vertical : 100 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On localizer 12R, stl approximately 3,000' MSL. Another flight on approach for 12L was right of localizer. I took evasive action with a 30 degree bank to right. Other flight did not cross 12R localizer, but was approximately 300-400' from it. After I saw other aircraft, he also took evasive action, with approximately 20 degree bank back to left.
Original NASA ASRS Text
Title: TWO MLG ACFT ALIGNING FOR APCH TO PARALLEL RWYS AT STL HAD NMAC WHEN ACFT ON LEFT OVERSHOT HIS ALIGNMENT AND INTRUDED ON THE RIGHT HAND ACFT'S AIRSPACE FOR ALIGNMENT WITH THE RIGHT RWY.
Narrative: ON LOC 12R, STL APPROX 3,000' MSL. ANOTHER FLT ON APCH FOR 12L WAS RIGHT OF LOC. I TOOK EVASIVE ACTION WITH A 30 DEG BANK TO RIGHT. OTHER FLT DID NOT CROSS 12R LOC, BUT WAS APPROX 300-400' FROM IT. AFTER I SAW OTHER ACFT, HE ALSO TOOK EVASIVE ACTION, WITH APPROX 20 DEG BANK BACK TO LEFT.
Data retrieved from NASA's ASRS site as of August 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.