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Double potential conflict experienced by a cpr jet ferry crew when climbing off a TCASII RA for VFR traffic below they break separation from IFR traffic 1000 ft above, 5 mi south of ahn, GA.
| Attributes | |
| ACN | 548287 |
| Time | |
| Date | 200205 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| State Reference | GA |
| Altitude | msl bound lower : 5700 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air taxi |
| Make Model Name | Light Transport, Low Wing, 2 Turbojet Eng |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | other |
| Flight Phase | cruise : level |
| Route In Use | enroute airway : v5.airway |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : ztl.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise : level |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 90 flight time total : 4000 flight time type : 500 |
| ASRS Report | 548287 |
| Person 2 | |
| Affiliation | company : air taxi |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 150 flight time total : 2800 flight time type : 600 |
| ASRS Report | 548624 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne critical inflight encounter other non adherence : published procedure non adherence : clearance |
| Independent Detector | atc equipment : conflict alert aircraft equipment : tcas |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : investigated faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 200 vertical : 300 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance Airspace Structure |
| Primary Problem | ATC Human Performance |
Narrative:
During a repositioning (empty) flight from 3j7 to fty, in cruise flight at 6000 ft, we received a TCASII RA for traffic and had to leave our altitude to avoid a midair collision. We went to 6400 ft MSL and advised center immediately. The controller (frequency 127.5) apologized and said he should have warned us of the VFR traffic, but he thought we should be clear. After the TCASII said 'clear of conflict, 'we returned to our assigned 6000 ft altitude. Upon landing, we were asked to call ZTL. Upon calling the center, we were informed above us. We also saw the traffic above us but received no RA on that aircraft. This action prevented a midair collision.
Original NASA ASRS Text
Title: DOUBLE POTENTIAL CONFLICT EXPERIENCED BY A CPR JET FERRY CREW WHEN CLBING OFF A TCASII RA FOR VFR TFC BELOW THEY BREAK SEPARATION FROM IFR TFC 1000 FT ABOVE, 5 MI S OF AHN, GA.
Narrative: DURING A REPOSITIONING (EMPTY) FLT FROM 3J7 TO FTY, IN CRUISE FLT AT 6000 FT, WE RECEIVED A TCASII RA FOR TFC AND HAD TO LEAVE OUR ALT TO AVOID A MIDAIR COLLISION. WE WENT TO 6400 FT MSL AND ADVISED CTR IMMEDIATELY. THE CTLR (FREQ 127.5) APOLOGIZED AND SAID HE SHOULD HAVE WARNED US OF THE VFR TFC, BUT HE THOUGHT WE SHOULD BE CLR. AFTER THE TCASII SAID 'CLR OF CONFLICT, 'WE RETURNED TO OUR ASSIGNED 6000 FT ALT. UPON LNDG, WE WERE ASKED TO CALL ZTL. UPON CALLING THE CTR, WE WERE INFORMED ABOVE US. WE ALSO SAW THE TFC ABOVE US BUT RECEIVED NO RA ON THAT ACFT. THIS ACTION PREVENTED A MIDAIR COLLISION.
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.