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A320 flight crew gets close to restr area while navigating nrp flight plan utilizing the navigation function of the FMGC.
| Attributes | |
| ACN | 683475 |
| Time | |
| Date | 200601 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zlc.artcc |
| State Reference | UT |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zlc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 683475 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure non adherence : clearance non adherence : far |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended or assigned course |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Flight was operating on the following nrp flight plan: boi..broph..crito..beryl..corkr..drk..COYOT2..phx:nrp in the turn over; broph; autoplt engaged flying in navigation; ZLC gave us a 30 degree left turn and told us that we shouldn't cut the corner at broph due to nearby military airspace. As is typical in the airbus; the LNAV course was about 4 mi inside; in this case; west of broph in the turn to crito. The autoplt was flying this LNAV course perfectly. However; this apparently put us too close to military airspace for comfort. We complied with the center vector and were shortly reclred direct to crito. Had we known in advance of this issue; we would have set up broph as an overfly waypoint in the FMGC. This would eliminate the normal FMGC corner cutting maneuver and put the aircraft directly over the fix prior to making the turn to crito. Suggestion: issue a company NOTAM to this effect for all boi departures; and place a similar warning in the remarks section of any flight release containing this route.
Original NASA ASRS Text
Title: A320 FLT CREW GETS CLOSE TO RESTR AREA WHILE NAVING NRP FLT PLAN UTILIZING THE NAV FUNCTION OF THE FMGC.
Narrative: FLT WAS OPERATING ON THE FOLLOWING NRP FLT PLAN: BOI..BROPH..CRITO..BERYL..CORKR..DRK..COYOT2..PHX:NRP IN THE TURN OVER; BROPH; AUTOPLT ENGAGED FLYING IN NAV; ZLC GAVE US A 30 DEG L TURN AND TOLD US THAT WE SHOULDN'T CUT THE CORNER AT BROPH DUE TO NEARBY MIL AIRSPACE. AS IS TYPICAL IN THE AIRBUS; THE LNAV COURSE WAS ABOUT 4 MI INSIDE; IN THIS CASE; W OF BROPH IN THE TURN TO CRITO. THE AUTOPLT WAS FLYING THIS LNAV COURSE PERFECTLY. HOWEVER; THIS APPARENTLY PUT US TOO CLOSE TO MIL AIRSPACE FOR COMFORT. WE COMPLIED WITH THE CTR VECTOR AND WERE SHORTLY RECLRED DIRECT TO CRITO. HAD WE KNOWN IN ADVANCE OF THIS ISSUE; WE WOULD HAVE SET UP BROPH AS AN OVERFLY WAYPOINT IN THE FMGC. THIS WOULD ELIMINATE THE NORMAL FMGC CORNER CUTTING MANEUVER AND PUT THE ACFT DIRECTLY OVER THE FIX PRIOR TO MAKING THE TURN TO CRITO. SUGGESTION: ISSUE A COMPANY NOTAM TO THIS EFFECT FOR ALL BOI DEPS; AND PLACE A SIMILAR WARNING IN THE REMARKS SECTION OF ANY FLT RELEASE CONTAINING THIS RTE.
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.