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Flight crew of a cpr astra jet failed to follow their arrival track due to misoperating the long range navigation unit with the programmed routing.
| Attributes | |
| ACN | 477513 |
| Time | |
| Date | 200006 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | general aviation : corporate |
| Make Model Name | IAI1125 (Astra) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : shaff four |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : multi engine pilot : cfi |
| Experience | flight time last 90 days : 150 flight time total : 7600 flight time type : 800 |
| ASRS Report | 477513 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| 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 none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On jun/xa/00, while flying an astra jet from roc to ewr, the other pilot and I received ATC clearance from roc clearance delivery 'cleared to ewr via direct hnk VORTAC, then direct.' prior to reaching hnk, ZOB advised us to proceed to ewr via the shaff 4 arrival. This was programmed into the #2 long range navigation unit. Each intersection was verified against the shaff 4 arrival. When all information was deemed accurate, it was xferred to the #1 long range navigation unit. Later, but still prior to reaching hnk, we listened to ewr ATIS, which indicated that we should expect the ILS to runway 22L. We programmed the ILS into the #2 long range navigation unit and verified all intxns, then xferred that information to the #1 long range navigation unit. After passing hnk, which is where the shaff 4 arrival begins, ATC advised us that we were not following the shaff 4 arrival. We immediately discovered that the shaff 4 arrival was deleted from the #1 long range navigation unit. This must have occurred when we xferred the ILS from #2 long range navigation unit to #1 long range navigation unit. We learned from this situation that we must verify all data every time we make a change to the data in the long range navigation unit.
Original NASA ASRS Text
Title: FLC OF A CPR ASTRA JET FAILED TO FOLLOW THEIR ARR TRACK DUE TO MISOPERATING THE LONG RANGE NAV UNIT WITH THE PROGRAMMED ROUTING.
Narrative: ON JUN/XA/00, WHILE FLYING AN ASTRA JET FROM ROC TO EWR, THE OTHER PLT AND I RECEIVED ATC CLRNC FROM ROC CLRNC DELIVERY 'CLRED TO EWR VIA DIRECT HNK VORTAC, THEN DIRECT.' PRIOR TO REACHING HNK, ZOB ADVISED US TO PROCEED TO EWR VIA THE SHAFF 4 ARR. THIS WAS PROGRAMMED INTO THE #2 LONG RANGE NAV UNIT. EACH INTXN WAS VERIFIED AGAINST THE SHAFF 4 ARR. WHEN ALL INFO WAS DEEMED ACCURATE, IT WAS XFERRED TO THE #1 LONG RANGE NAV UNIT. LATER, BUT STILL PRIOR TO REACHING HNK, WE LISTENED TO EWR ATIS, WHICH INDICATED THAT WE SHOULD EXPECT THE ILS TO RWY 22L. WE PROGRAMMED THE ILS INTO THE #2 LONG RANGE NAV UNIT AND VERIFIED ALL INTXNS, THEN XFERRED THAT INFO TO THE #1 LONG RANGE NAV UNIT. AFTER PASSING HNK, WHICH IS WHERE THE SHAFF 4 ARR BEGINS, ATC ADVISED US THAT WE WERE NOT FOLLOWING THE SHAFF 4 ARR. WE IMMEDIATELY DISCOVERED THAT THE SHAFF 4 ARR WAS DELETED FROM THE #1 LONG RANGE NAV UNIT. THIS MUST HAVE OCCURRED WHEN WE XFERRED THE ILS FROM #2 LONG RANGE NAV UNIT TO #1 LONG RANGE NAV UNIT. WE LEARNED FROM THIS SIT THAT WE MUST VERIFY ALL DATA EVERY TIME WE MAKE A CHANGE TO THE DATA IN THE LONG RANGE NAV UNIT.
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.