 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
B737 flight crew experienced a route discontinuity when the runway is changed from 16R to 16L during the WAATS3 RNAV to slc. The aircraft goes to heading mode and vectors are requested from ATC.
| Attributes | |
| ACN | 1296861 |
| Time | |
| Date | 201509 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | SLC.Airport |
| State Reference | UT |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Route In Use | STAR WAATS 3 |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 224 |
| Person 2 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 176 Flight Crew Type 11000 |
| Events | |
| Anomaly | Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types |
Narrative:
While over slagg waypoint; on the waats 3 arrival; landing south at slc we had 16R selected and were on LNAV/VNAV path. Approach told us to switch to 16L. I told the captain who was PF I would put in the new runway. This caused a disconnect with the autopilot and put us in cws steering mode. I asked for vectors since we were no longer on the STAR and heading east when we should have been turning north on the STAR. We were given vectors and then realized by putting in a new runway that caused the route discontinuity. Luckily this happened during VMC conditions. Wait to put in new runway while on a STAR.
Original NASA ASRS Text
Title: B737 flight crew experienced a route discontinuity when the runway is changed from 16R to 16L during the WAATS3 RNAV to SLC. The aircraft goes to heading mode and vectors are requested from ATC.
Narrative: While over SLAGG waypoint; on the WAATS 3 Arrival; landing south at SLC we had 16R selected and were on LNAV/VNAV PATH. Approach told us to switch to 16L. I told the Captain who was PF I would put in the new runway. This caused a disconnect with the autopilot and put us in CWS Steering mode. I asked for vectors since we were no longer on the STAR and heading east when we should have been turning north on the STAR. We were given vectors and then realized by putting in a new runway that caused the route discontinuity. Luckily this happened during VMC conditions. Wait to put in new runway while on a STAR.
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.