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An air carrier B737-200 had to take evasive action to avoid a long ez during an arrival at koa. The reporter complains of a lack of radar coverage below 5000 ft at koa.
| Attributes | |
| ACN | 431219 |
| Time | |
| Date | 199903 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : iai.vortac |
| Altitude | msl single value : 6500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zhn.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : intermediate altitude |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zhn.artcc |
| Operator | general aviation : personal |
| Make Model Name | Experimental |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : vfr |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 200 flight time total : 5000 flight time type : 2500 |
| ASRS Report | 431219 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac |
| Independent Detector | aircraft equipment : tcas other controllera other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : took evasive action |
| Miss Distance | horizontal : 0 vertical : 500 |
| Supplementary | |
| Problem Areas | Airport FAA |
| Primary Problem | Airport |
| Situations | |
| ATC Facility | radar equipment : koa.tower |
Narrative:
Clear, 50+ mi day. Cleared visual approach to keahole-kona at runway 17. VFR traffic (a long ez?) picks up a squawk from center for VFR TA's and starts a climb out from airport to northwest. There is no approach/departure radar at kona and center picks up departure traffic between 4000-6000 ft. Captain and I started looking at TCASII to attempt to identify VFR traffic as soon as we heard his radio call. There were same traffic returns on the TCASII display greater than 15 NM away to the east. Center commented to the VFR traffic that he'd 'advise the B737 traffic of your (VFR traffic) position.' we were looking at the TCASII full time now and leveling at approximately 6500 ft. Center called us as we received a momentary hit on VFR traffic and a 'traffic, traffic' call. Center advised 'traffic 12 O'clock 3 mi at 6500 ft' and we started a climb as we received an RA 'climb, climb.' vvi climb eventually reached 3500 RPM to maintain 'green' arc. Estimate 500-1000 ft vertical miss. This happens a lot at kona! There is high volume civil, cpr, military, and private traffic and no radar below 5000 ft. A radar needs to be installed now to prevent an accident that will happen eventually!
Original NASA ASRS Text
Title: AN ACR B737-200 HAD TO TAKE EVASIVE ACTION TO AVOID A LONG EZ DURING AN ARR AT KOA. THE RPTR COMPLAINS OF A LACK OF RADAR COVERAGE BELOW 5000 FT AT KOA.
Narrative: CLR, 50+ MI DAY. CLRED VISUAL APCH TO KEAHOLE-KONA AT RWY 17. VFR TFC (A LONG EZ?) PICKS UP A SQUAWK FROM CTR FOR VFR TA'S AND STARTS A CLBOUT FROM ARPT TO NW. THERE IS NO APCH/DEP RADAR AT KONA AND CTR PICKS UP DEP TFC BTWN 4000-6000 FT. CAPT AND I STARTED LOOKING AT TCASII TO ATTEMPT TO IDENT VFR TFC AS SOON AS WE HEARD HIS RADIO CALL. THERE WERE SAME TFC RETURNS ON THE TCASII DISPLAY GREATER THAN 15 NM AWAY TO THE E. CTR COMMENTED TO THE VFR TFC THAT HE'D 'ADVISE THE B737 TFC OF YOUR (VFR TFC) POS.' WE WERE LOOKING AT THE TCASII FULL TIME NOW AND LEVELING AT APPROX 6500 FT. CTR CALLED US AS WE RECEIVED A MOMENTARY HIT ON VFR TFC AND A 'TFC, TFC' CALL. CTR ADVISED 'TFC 12 O'CLOCK 3 MI AT 6500 FT' AND WE STARTED A CLB AS WE RECEIVED AN RA 'CLB, CLB.' VVI CLB EVENTUALLY REACHED 3500 RPM TO MAINTAIN 'GREEN' ARC. ESTIMATE 500-1000 FT VERT MISS. THIS HAPPENS A LOT AT KONA! THERE IS HIGH VOLUME CIVIL, CPR, MIL, AND PVT TFC AND NO RADAR BELOW 5000 FT. A RADAR NEEDS TO BE INSTALLED NOW TO PREVENT AN ACCIDENT THAT WILL HAPPEN EVENTUALLY!
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.