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Wbound B737 had near midair collision shortly after departing mci. Flight was climbing through FL320 when the TCASII ordered a descent.
| Attributes | |
| ACN | 400602 |
| Time | |
| Date | 199804 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : sln |
| State Reference | KS |
| Altitude | msl bound lower : 32100 msl bound upper : 32100 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zkc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | 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 : 240 flight time total : 14000 flight time type : 3500 |
| ASRS Report | 400602 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | non adherence : required legal separation non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 1000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Air carrier X kansas city international to denver international apr/xa/98 XA40. While en route from kansas city international (mci) to denver international (dia) we took evasive actions per our TCASII RA to descend while passing through FL321. After departing mci we were initially cleared to FL280. Numerous eastbound aircraft above us prevented the controller from assigning a higher altitude. After clearing all eastbound traffic the controller (ZKC) issued us a clearance to climb to FL350. The WX was thin clouds partially obscuring our forward vision. While passing through FL321 I noticed traffic at FL330 coming at us from the southwest (approximately 10 O'clock high) displayed on my ehsi. The TCASII immediately ordered a descent. I was able to see the oncoming traffic as it passed directly over us. At the time of this conflict I estimate about 1000-1100 ft of separation. I notified ZKC as soon as I received the TCASII order to descend. The approaching aircraft advised center of their TCASII alert shortly after my transmission. After we were clear of the conflict I advised the center that we would continue climbing to our assigned altitude of FL350.
Original NASA ASRS Text
Title: WBOUND B737 HAD NMAC SHORTLY AFTER DEPARTING MCI. FLT WAS CLBING THROUGH FL320 WHEN THE TCASII ORDERED A DSCNT.
Narrative: ACR X KANSAS CITY INTL TO DENVER INTL APR/XA/98 XA40. WHILE ENRTE FROM KANSAS CITY INTL (MCI) TO DENVER INTL (DIA) WE TOOK EVASIVE ACTIONS PER OUR TCASII RA TO DSND WHILE PASSING THROUGH FL321. AFTER DEPARTING MCI WE WERE INITIALLY CLRED TO FL280. NUMEROUS EBOUND ACFT ABOVE US PREVENTED THE CTLR FROM ASSIGNING A HIGHER ALT. AFTER CLRING ALL EBOUND TFC THE CTLR (ZKC) ISSUED US A CLRNC TO CLB TO FL350. THE WX WAS THIN CLOUDS PARTIALLY OBSCURING OUR FORWARD VISION. WHILE PASSING THROUGH FL321 I NOTICED TFC AT FL330 COMING AT US FROM THE SW (APPROX 10 O'CLOCK HIGH) DISPLAYED ON MY EHSI. THE TCASII IMMEDIATELY ORDERED A DSCNT. I WAS ABLE TO SEE THE ONCOMING TFC AS IT PASSED DIRECTLY OVER US. AT THE TIME OF THIS CONFLICT I ESTIMATE ABOUT 1000-1100 FT OF SEPARATION. I NOTIFIED ZKC AS SOON AS I RECEIVED THE TCASII ORDER TO DSND. THE APCHING ACFT ADVISED CTR OF THEIR TCASII ALERT SHORTLY AFTER MY XMISSION. AFTER WE WERE CLR OF THE CONFLICT I ADVISED THE CTR THAT WE WOULD CONTINUE CLBING TO OUR ASSIGNED ALT OF FL350.
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.