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Distracted by an ATC request to maintain visual separation while flying the triss RNAV SID from dfw; flight crew of MD80 fail to fly the transition route.
| Attributes | |
| ACN | 684265 |
| Time | |
| Date | 200601 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | intersection : shero |
| State Reference | TX |
| Altitude | msl single value : 15000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : d10.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : initial |
| Route In Use | departure sid : triss |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : d10.tracon |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise : level |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 684265 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| ASRS Report | 684257 |
| Events | |
| Anomaly | aircraft equipment problem : critical conflict : airborne less severe other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued advisory flight crew : returned to intended or assigned course |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft ATC Human Performance |
| Primary Problem | Ambiguous |
Narrative:
Departed from dfw on TRISS2 from runway 35L. Route had been checked on ground. During climb out; ATC asked us to maintain visual separation on another aircraft preceding us; even though we were on an RNAV departure. A few minutes after passing triss; ATC asked us if we were going direct to mem (yes) and if the prior controller had cleared us direct to triss (no). Shero did not appear on my map at this time. Turns out we were 1.8 miles left of shero. Do not know what happened to it. ATC had said nothing until we were abeam the point. We corrected back to the proper track.supplemental information from acn 684257: I was distracted looking for traffic and will use the autoplt in the future to avoid this type of navigation error.
Original NASA ASRS Text
Title: DISTRACTED BY AN ATC REQUEST TO MAINTAIN VISUAL SEPARATION WHILE FLYING THE TRISS RNAV SID FROM DFW; FLT CREW OF MD80 FAIL TO FLY THE TRANSITION RTE.
Narrative: DEPARTED FROM DFW ON TRISS2 FROM RWY 35L. RTE HAD BEEN CHKED ON GND. DURING CLBOUT; ATC ASKED US TO MAINTAIN VISUAL SEPARATION ON ANOTHER ACFT PRECEDING US; EVEN THOUGH WE WERE ON AN RNAV DEP. A FEW MINUTES AFTER PASSING TRISS; ATC ASKED US IF WE WERE GOING DIRECT TO MEM (YES) AND IF THE PRIOR CTLR HAD CLRED US DIRECT TO TRISS (NO). SHERO DID NOT APPEAR ON MY MAP AT THIS TIME. TURNS OUT WE WERE 1.8 MILES LEFT OF SHERO. DO NOT KNOW WHAT HAPPENED TO IT. ATC HAD SAID NOTHING UNTIL WE WERE ABEAM THE POINT. WE CORRECTED BACK TO THE PROPER TRACK.SUPPLEMENTAL INFO FROM ACN 684257: I WAS DISTRACTED LOOKING FOR TFC AND WILL USE THE AUTOPLT IN THE FUTURE TO AVOID THIS TYPE OF NAV ERROR.
Data retrieved from NASA's ASRS site as of January 2009 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.