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Aircraft on ILS approach encountered small aircraft opposite direction climbing through altitude. Evasive action taken to avoid collision.
| Attributes | |
| ACN | 116990 |
| Time | |
| Date | 198907 |
| Day | Mon |
| Place | |
| Locale Reference | atc facility : ckb |
| State Reference | WV |
| Altitude | msl bound lower : 3000 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ckb tower : ckb |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | descent other |
| Route In Use | approach : straight in |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : instructional |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | climbout : intermediate altitude |
| 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 : 4700 |
| ASRS Report | 116990 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 200 vertical : 200 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
Narrative:
We were on the ILS for runway 21 at clarksburg, wv. We were cleared for the approach and handed off to tower who cleared us to land. Just inside the outer marker a light small aircraft was spotted at 12 O'clock and climbing through our altitude. A turn 20 degree right and a descent 3 dots below glide slope was required to avoid collision. When I asked tower about the traffic he never answered me. A few moments later he asked an small aircraft if he had turned right after departure. The small aircraft responded that he had to go straight ahead. Upon landing I called tower who transferred me to the clarksburg approach supervisor. He said he had been training and was called away from the scope to solve a computer problem. A trainee at the scope, a breakdown in communications between tower and approach and an aircraft that appeared not to follow his departure instructions. All seem to be part of this near mishap.
Original NASA ASRS Text
Title: ACFT ON ILS APCH ENCOUNTERED SMA OPPOSITE DIRECTION CLIMBING THROUGH ALT. EVASIVE ACTION TAKEN TO AVOID COLLISION.
Narrative: WE WERE ON THE ILS FOR RWY 21 AT CLARKSBURG, WV. WE WERE CLRED FOR THE APCH AND HANDED OFF TO TWR WHO CLRED US TO LAND. JUST INSIDE THE OUTER MARKER A LIGHT SMA WAS SPOTTED AT 12 O'CLOCK AND CLIMBING THROUGH OUR ALT. A TURN 20 DEG RIGHT AND A DSCNT 3 DOTS BELOW GLIDE SLOPE WAS REQUIRED TO AVOID COLLISION. WHEN I ASKED TWR ABOUT THE TFC HE NEVER ANSWERED ME. A FEW MOMENTS LATER HE ASKED AN SMA IF HE HAD TURNED RIGHT AFTER DEP. THE SMA RESPONDED THAT HE HAD TO GO STRAIGHT AHEAD. UPON LNDG I CALLED TWR WHO TRANSFERRED ME TO THE CLARKSBURG APCH SUPVR. HE SAID HE HAD BEEN TRAINING AND WAS CALLED AWAY FROM THE SCOPE TO SOLVE A COMPUTER PROBLEM. A TRAINEE AT THE SCOPE, A BREAKDOWN IN COMMUNICATIONS BETWEEN TWR AND APCH AND AN ACFT THAT APPEARED NOT TO FOLLOW HIS DEP INSTRUCTIONS. ALL SEEM TO BE PART OF THIS NEAR MISHAP.
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.