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Air carrier X TCASII RA climb non adherence to ATC clearance to maintain altitude caused less than standard separation from small aircraft Y. Pilot deviation.
| Attributes | |
| ACN | 217745 |
| Time | |
| Date | 199208 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : ccv |
| State Reference | VA |
| Altitude | msl bound lower : 4000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : orf |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, High Wing, 2 Turboprop Eng |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft, Low Wing, 1 Eng, Retractable Gear |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller military : 4 controller radar : 14 |
| ASRS Report | 217745 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action other |
| Consequence | Other |
| Miss Distance | horizontal : 9000 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Air carrier X on vectors for sequence to orf, at 4000 ft, indicated he was climbing for TCASII RA. Small aircraft Y was an overflt at 5000 ft, on a converging course with air carrier X, 3 mi from convergence. I told air carrier X to turn left heading 090 degrees immediately, and advised the controller who was working small aircraft Y. That controller climbed small aircraft Y and told him why. Small aircraft Y saw air carrier X shortly thereafter and everything soon returned to normal. Small aircraft Y indicated that the control instruction was appropriate for the situation. After reviewing the tapes, air carrier X advised that the reason he missed some control instructions was because of his TCASII, so I don't know if TCASII was too loud or whether pilots just totally disregard ATC when it goes off. Through all of this, the conflict advisory in the ARTS ii never went off.
Original NASA ASRS Text
Title: ACR X TCASII RA CLB NON ADHERENCE TO ATC CLRNC TO MAINTAIN ALT CAUSED LTSS FROM SMA Y. PLTDEV.
Narrative: ACR X ON VECTORS FOR SEQUENCE TO ORF, AT 4000 FT, INDICATED HE WAS CLBING FOR TCASII RA. SMA Y WAS AN OVERFLT AT 5000 FT, ON A CONVERGING COURSE WITH ACR X, 3 MI FROM CONVERGENCE. I TOLD ACR X TO TURN L HDG 090 DEGS IMMEDIATELY, AND ADVISED THE CTLR WHO WAS WORKING SMA Y. THAT CTLR CLBED SMA Y AND TOLD HIM WHY. SMA Y SAW ACR X SHORTLY THEREAFTER AND EVERYTHING SOON RETURNED TO NORMAL. SMA Y INDICATED THAT THE CTL INSTRUCTION WAS APPROPRIATE FOR THE SITUATION. AFTER REVIEWING THE TAPES, ACR X ADVISED THAT THE REASON HE MISSED SOME CTL INSTRUCTIONS WAS BECAUSE OF HIS TCASII, SO I DON'T KNOW IF TCASII WAS TOO LOUD OR WHETHER PLTS JUST TOTALLY DISREGARD ATC WHEN IT GOES OFF. THROUGH ALL OF THIS, THE CONFLICT ADVISORY IN THE ARTS II NEVER WENT OFF.
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.