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B737-800 pilot reported a track deviation occurred on arrival into iah following a last minute clearance change that was complicated by the FMC not responding as expected during reprogramming.
| Attributes | |
| ACN | 1624617 |
| Time | |
| Date | 201903 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | IAH.Airport |
| State Reference | TX |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Route In Use | STAR GESNR ONE |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | Pilot Flying |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | ATC Issue All Types Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types |
Narrative:
We were instructed to change STAR to the GESNR1 arrival and then the RNAV Y runway 09 at iah. The last point on the STAR; howln; is also the 1st point on the RNAV approach. I connected the 2 points and reviewed but we noticed as we were approaching howln there was a vector prompt on the FMC. I tried to delete the vector but was unsuccessful. When we hit the point where we should have turned and commenced the approach; the aircraft did not turn. Approach control broke us off the approach and gave us vectors.we should have told ATC when we couldn't correct the FMC so they could have just given us vectors.
Original NASA ASRS Text
Title: B737-800 pilot reported a track deviation occurred on arrival into IAH following a last minute clearance change that was complicated by the FMC not responding as expected during reprogramming.
Narrative: We were instructed to change STAR to the GESNR1 arrival and then the RNAV Y Runway 09 at IAH. The last point on the STAR; HOWLN; is also the 1st point on the RNAV approach. I connected the 2 points and reviewed but we noticed as we were approaching HOWLN there was a VECTOR prompt on the FMC. I tried to delete the vector but was unsuccessful. When we hit the point where we should have turned and commenced the approach; the aircraft did not turn. Approach Control broke us off the approach and gave us vectors.We should have told ATC when we couldn't correct the FMC so they could have just given us vectors.
Data retrieved from NASA's ASRS site 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.