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Flight crew of an airbus 319 went off arrival course due to navigation computer dropping planned program route resulting in ARTCC clear intervention to vector them back on track.
| Attributes | |
| ACN | 497317 |
| Time | |
| Date | 200101 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : jst.vortac |
| State Reference | PA |
| Altitude | msl single value : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : bojid one |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : flight engineer pilot : private pilot : commercial pilot : atp pilot : student |
| Experience | flight time last 90 days : 150 flight time total : 3500 flight time type : 400 |
| ASRS Report | 497317 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 12000 flight time type : 150 |
| ASRS Report | 497315 |
| Events | |
| Anomaly | non adherence : clearance non adherence : published procedure other spatial deviation |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued alert controller : provided flight assist |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On the bojid arrival into phl, we crossed over jst VOR on the arrival when we were corrected by ATC asking our position. We acknowledged being on the arrival proceeding to bunts intersection. He said we were taking a shortcut and gave us a vector to rejoin the arrival. At that point we both noticed that certain waypoints had dropped out on the arrival and that we were proceeding directly to bunts intersection. We rejoined the arrival into phl without any further problems. Even though we had correctly checked that the waypoints were there on our departure, we should have rechked once we got on the arrival.
Original NASA ASRS Text
Title: FLC OF AN AIRBUS 319 WENT OFF ARR COURSE DUE TO NAV COMPUTER DROPPING PLANNED PROGRAM RTE RESULTING IN ARTCC CLR INTERVENTION TO VECTOR THEM BACK ON TRACK.
Narrative: ON THE BOJID ARR INTO PHL, WE CROSSED OVER JST VOR ON THE ARR WHEN WE WERE CORRECTED BY ATC ASKING OUR POS. WE ACKNOWLEDGED BEING ON THE ARR PROCEEDING TO BUNTS INTXN. HE SAID WE WERE TAKING A SHORTCUT AND GAVE US A VECTOR TO REJOIN THE ARR. AT THAT POINT WE BOTH NOTICED THAT CERTAIN WAYPOINTS HAD DROPPED OUT ON THE ARR AND THAT WE WERE PROCEEDING DIRECTLY TO BUNTS INTXN. WE REJOINED THE ARR INTO PHL WITHOUT ANY FURTHER PROBS. EVEN THOUGH WE HAD CORRECTLY CHKED THAT THE WAYPOINTS WERE THERE ON OUR DEP, WE SHOULD HAVE RECHKED ONCE WE GOT ON THE ARR.
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.