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After being vectored by approach control off of the arrival procedure to an intercept heading for facility; B737 crew failed to ensure that appropriate fix on the transition portion of the approach procedure that included their altitude-crossing restriction; was displayed on the FMS. The crew descended early by following a false glide slope indication; which was likely a VNAV path indication; before the approach was armed in the FMS.
| Attributes | |
| ACN | 1261510 |
| Time | |
| Date | 201505 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | D01.TRACON |
| State Reference | CO |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Final Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Person 2 | |
| Function | Pilot Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 154 Flight Crew Total 14000 Flight Crew Type 272 |
| Events | |
| Anomaly | Deviation - Altitude Crossing Restriction Not Met Deviation - Altitude Overshoot Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy |
Narrative:
We were getting extended down wind vectors for ILS 17R. Approach control said to fly direct to hissy; cross hissy at 9;000 feet cleared approach. Coming from the south; we were not set up for the transitions had to manually insert them. We mistakenly did not insert jomag and started down in VNAV to cross josee at 8;000 feet. That put us low over jomag.
Original NASA ASRS Text
Title: After being vectored by Approach Control off of the arrival procedure to an intercept heading for FAC; B737 crew failed to ensure that appropriate fix on the transition portion of the approach procedure that included their altitude-crossing restriction; was displayed on the FMS. The crew descended early by following a false glide slope indication; which was likely a VNAV path indication; before the approach was armed in the FMS.
Narrative: We were getting extended down wind vectors for ILS 17R. Approach Control said to fly direct to HISSY; cross HISSY at 9;000 feet cleared approach. Coming from the South; we were not set up for the transitions had to manually insert them. We mistakenly did not insert JOMAG and started down in VNAV to cross JOSEE at 8;000 feet. That put us low over JOMAG.
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.