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Near midair collision between a B767ER descending during an ILS approach, outside of class C airspace, and a piper twin level, less than 500 ft below, passing under the nose of the B767. The B767 had stopped descent and started climbing back to 6000 ft as instructed by an ATC TA.
| Attributes | |
| ACN | 410034 |
| Time | |
| Date | 199808 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : cvg |
| State Reference | OH |
| Altitude | msl bound lower : 5700 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : cvg |
| Operator | common carrier : air carrier |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star enroute airway : cvg |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Piper Twin Piston Undifferentiated or Other Model |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 225 flight time total : 17000 flight time type : 6000 |
| ASRS Report | 410034 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 475 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
Narrative:
We were on the localizer to runway 18L in cvg descending through 5700 ft for 5000 ft. Approach control called out unknown traffic at 5500 ft and told us to stop descent at 6000 ft. We started to climb and received a TA followed almost immediately by an RA. The first officer followed the TA resolution (climb) and I spotted the traffic slightly left of 12 O'clock position on an intercept heading. He passed directly below our nose and I would estimate within 500 ft. After passing the traffic we re- established ourselves on the approach. Approach asked us if we could identify the other aircraft. It appeared to be a twin piper.
Original NASA ASRS Text
Title: NMAC BTWN A B767ER DSNDING DURING AN ILS APCH, OUTSIDE OF CLASS C AIRSPACE, AND A PIPER TWIN LEVEL, LESS THAN 500 FT BELOW, PASSING UNDER THE NOSE OF THE B767. THE B767 HAD STOPPED DSCNT AND STARTED CLBING BACK TO 6000 FT AS INSTRUCTED BY AN ATC TA.
Narrative: WE WERE ON THE LOC TO RWY 18L IN CVG DSNDING THROUGH 5700 FT FOR 5000 FT. APCH CTL CALLED OUT UNKNOWN TFC AT 5500 FT AND TOLD US TO STOP DSCNT AT 6000 FT. WE STARTED TO CLB AND RECEIVED A TA FOLLOWED ALMOST IMMEDIATELY BY AN RA. THE FO FOLLOWED THE TA RESOLUTION (CLB) AND I SPOTTED THE TFC SLIGHTLY L OF 12 O'CLOCK POS ON AN INTERCEPT HEADING. HE PASSED DIRECTLY BELOW OUR NOSE AND I WOULD ESTIMATE WITHIN 500 FT. AFTER PASSING THE TFC WE RE- ESTABLISHED OURSELVES ON THE APCH. APCH ASKED US IF WE COULD IDENT THE OTHER ACFT. IT APPEARED TO BE A TWIN PIPER.
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.