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Near midair collision between a beech 1900 airliner, just handed off by center to a non radar tower, on a long final, and a C421 making a practice approach, converging across the front of the airliner, and instructed to follow the BE02. Since the C421 was crossing very close in front of the beech, the first officer of the beech made a steep bank turn to the right to avoid collision.
| Attributes | |
| ACN | 383900 |
| Time | |
| Date | 199710 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : cll |
| State Reference | TX |
| Altitude | msl bound lower : 2200 msl bound upper : 2200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : cll |
| Operator | common carrier : air carrier |
| Make Model Name | Beech 1900 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | descent : approach descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Golden Eagle 421 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Flight Plan | VFR |
| 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 : 2850 flight time type : 1400 |
| ASRS Report | 383900 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 500 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
During IFR handoff (for the ILS runway 34 at college station easterwood cll) contacted tower and reported out 9 mi. ZHU never advised of any VFR traffic however we overheard easterwood tower transmitting to a twin cessna on VFR practice approach. The twin cessna reported an 8 mi final and tower instructed the cessna to follow us. As the twin cessna was reading back the instructions we spotted him. He was approximately 500 ft at our 12 O'clock position right to left. My first officer was the PF and he initiated an evasive 45 degree bank turn to the right. Our TCASII alerted us with a TA only after we changed our course which was the localizer. Radio congestion created a significant delay in our communication to tower of the twin cessna. The C421 never saw us until our final approach. The lack of any advisory by ZHU before our handoff to the non radar tower contributed to the last min abrupt response. Our understanding, after speaking with cll tower led us to believe the C421 had just contacted tower as we were being handed off. Only vigilance prevented tragedy.
Original NASA ASRS Text
Title: NMAC BTWN A BEECH 1900 AIRLINER, JUST HANDED OFF BY CTR TO A NON RADAR TWR, ON A LONG FINAL, AND A C421 MAKING A PRACTICE APCH, CONVERGING ACROSS THE FRONT OF THE AIRLINER, AND INSTRUCTED TO FOLLOW THE BE02. SINCE THE C421 WAS XING VERY CLOSE IN FRONT OF THE BEECH, THE FO OF THE BEECH MADE A STEEP BANK TURN TO THE R TO AVOID COLLISION.
Narrative: DURING IFR HDOF (FOR THE ILS RWY 34 AT COLLEGE STATION EASTERWOOD CLL) CONTACTED TWR AND RPTED OUT 9 MI. ZHU NEVER ADVISED OF ANY VFR TFC HOWEVER WE OVERHEARD EASTERWOOD TWR XMITTING TO A TWIN CESSNA ON VFR PRACTICE APCH. THE TWIN CESSNA RPTED AN 8 MI FINAL AND TWR INSTRUCTED THE CESSNA TO FOLLOW US. AS THE TWIN CESSNA WAS READING BACK THE INSTRUCTIONS WE SPOTTED HIM. HE WAS APPROX 500 FT AT OUR 12 O'CLOCK POS R TO L. MY FO WAS THE PF AND HE INITIATED AN EVASIVE 45 DEG BANK TURN TO THE R. OUR TCASII ALERTED US WITH A TA ONLY AFTER WE CHANGED OUR COURSE WHICH WAS THE LOC. RADIO CONGESTION CREATED A SIGNIFICANT DELAY IN OUR COM TO TWR OF THE TWIN CESSNA. THE C421 NEVER SAW US UNTIL OUR FINAL APCH. THE LACK OF ANY ADVISORY BY ZHU BEFORE OUR HDOF TO THE NON RADAR TWR CONTRIBUTED TO THE LAST MIN ABRUPT RESPONSE. OUR UNDERSTANDING, AFTER SPEAKING WITH CLL TWR LED US TO BELIEVE THE C421 HAD JUST CONTACTED TWR AS WE WERE BEING HANDED OFF. ONLY VIGILANCE PREVENTED TRAGEDY.
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.