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Captain of a medium transport aircraft and captain of a small transport reported coming within 500 feet of one another in the vicinity of koa.
| Attributes | |
| ACN | 1281770 |
| Time | |
| Date | 201507 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | KOA.Airport |
| State Reference | HI |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Medium Large Transport Low Wing 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Transport |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Commercial |
| Experience | Flight Crew Last 90 Days 200 Flight Crew Total 1250 Flight Crew Type 650 |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict |
| Miss Distance | Vertical 500 |
Narrative:
Inbound to koa at FL190; we were given pd to 13000 and were told [another aircraft] was westbound out of koa. Through 14000 were given a vector of 090 and pd to 11000. [The other aircraft] then called us in sight and they were told to maintain visual with us. Hcc then gave us pd to 3000. I told my co-pilot we were going to stay at 11000 until we had [the other aircraft] in sight or once they had passed. At approximately the same time we got a TCAS (TA) telling us traffic was at one o'clock; 500 feet below us and 5 miles. We could not see the traffic because of scattered clouds. Shortly thereafter we received another TCAS (RA) 'monitor vertrical speed' telling us not to descend; traffic was now at two miles. [The other aircraft] passed 500 feet directly beneath us. Once clear of conflict was announced we started our descent to a normal landing in koa.not sure why hcc vectored us toward traffic and then gave us a clearance to descend through their altitude.
Original NASA ASRS Text
Title: Captain of a medium transport aircraft and Captain of a small transport reported coming within 500 feet of one another in the vicinity of KOA.
Narrative: Inbound to KOA at FL190; we were given PD to 13000 and were told [another aircraft] was westbound out of KOA. Through 14000 were given a vector of 090 and PD to 11000. [The other aircraft] then called us in sight and they were told to maintain visual with us. HCC then gave us PD to 3000. I told my co-pilot we were going to stay at 11000 until we had [the other aircraft] in sight or once they had passed. At approximately the same time we got a TCAS (TA) telling us traffic was at one o'clock; 500 feet below us and 5 miles. We could not see the traffic because of scattered clouds. Shortly thereafter we received another TCAS (RA) 'Monitor vertrical speed' telling us not to descend; traffic was now at two miles. [The other aircraft] passed 500 feet directly beneath us. Once clear of conflict was announced we started our descent to a normal landing in KOA.Not sure why HCC vectored us toward traffic and then gave us a clearance to descend through their altitude.
Data retrieved from NASA's ASRS site 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.