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Altitude deviation altitude excursion during pilot flight crew response to TCASII RA with climbing NORAC traffic.
| Attributes | |
| ACN | 217328 |
| Time | |
| Date | 199208 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dfw |
| State Reference | TX |
| Altitude | msl bound lower : 4000 msl bound upper : 4500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other cruise other descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Aircraft, High Wing, 1 Eng, Fixed Gear |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 7200 flight time type : 800 |
| ASRS Report | 217328 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance non adherence : far other anomaly other other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 3000 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While on a heading of 260 degrees awaiting final vector to intercept inbound visual course to runway 17L at dfw we were cleared to 'turn left to 210 degrees at 4000 ft cleared for visual approach runway 17L.' moments later we received instructions to turn right 30 degrees. Then the TCASII commanded climb (to a rate of plus 4000 FPM). We climbed to about 4500 ft when both captain and first officer saw high winged small aircraft traffic at our 10 O'clock just as approach control called the traffic to us. The traffic indicated 500 ft lower than us in a climb. We were now passing across the centerline of 17L when the TCASII indicated 'clear of conflict.' approach control then cleared us for a visual approach to 17L with no further comment. We should have been notified of this traffic long before we were in a conflict situation. Traffic was not pointed out to us until we began evasive action.
Original NASA ASRS Text
Title: ALTDEV ALT EXCURSION DURING PLT FLC RESPONSE TO TCASII RA WITH CLBING NORAC TFC.
Narrative: WHILE ON A HDG OF 260 DEGS AWAITING FINAL VECTOR TO INTERCEPT INBOUND VISUAL COURSE TO RWY 17L AT DFW WE WERE CLRED TO 'TURN L TO 210 DEGS AT 4000 FT CLRED FOR VISUAL APCH RWY 17L.' MOMENTS LATER WE RECEIVED INSTRUCTIONS TO TURN R 30 DEGS. THEN THE TCASII COMMANDED CLB (TO A RATE OF PLUS 4000 FPM). WE CLBED TO ABOUT 4500 FT WHEN BOTH CAPT AND FO SAW HIGH WINGED SMA TFC AT OUR 10 O'CLOCK JUST AS APCH CTL CALLED THE TFC TO US. THE TFC INDICATED 500 FT LOWER THAN US IN A CLB. WE WERE NOW PASSING ACROSS THE CTRLINE OF 17L WHEN THE TCASII INDICATED 'CLR OF CONFLICT.' APCH CTL THEN CLRED US FOR A VISUAL APCH TO 17L WITH NO FURTHER COMMENT. WE SHOULD HAVE BEEN NOTIFIED OF THIS TFC LONG BEFORE WE WERE IN A CONFLICT SITUATION. TFC WAS NOT POINTED OUT TO US UNTIL WE BEGAN EVASIVE ACTION.
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.