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A320 series flight crew experiences a track deviation and an unstabilized approach during the VOR DME 25 approach to mslp. The company briefing page requires that 'no star' be selected in the FMC after selecting the VOR DME 25 procedure; in order for the correct outbound course to displayed and programed. This was not done; causing the aircraft to fly outbound on the inbound course (066 radial) and ATC to issue a vector. The vector is declined and the approach continued visually; but unstabilized; to landing.
| Attributes | |
| ACN | 1256160 |
| Time | |
| Date | 201504 |
| Place | |
| Locale Reference | MSLP.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Airbus 318/319/320/321 Undifferentiated |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Component | |
| Aircraft Component | FMS/FMC |
| Person 1 | |
| Function | First Officer Pilot Flying |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Track / Heading All Types Inflight Event / Encounter Unstabilized Approach |
Narrative:
The VOR DME 25 approach requires the A320 to select 'no star' after selecting the VOR 25 approach. After selecting 'no star' then selecting 'cat 1' will program the correct outbound heading after crossing the CAT VOR. Although the 10-7 [briefing] page does note that this is to be done; there is no caution or emphasis to the fact that if CAT 1 is not selected that the aircraft as programmed will in actuality fly the heading/reciprocal 065 heading. Having seen this approach twice and witnessing the incorrect procedure; this can be avoided by confirming in the FMS that the actual heading outbound of the CAT VOR is and will be 090. If CAT 1 is not selected the FMS will depict a course that looks like the depicted and correct procedure; however it is not. Crews must confirm that CAT 1 is first selected as directed by the 10-7 page and that the FMS shows the proper outbound course. A caution or emphasis to this situation should be added to the 10-7 page.
Original NASA ASRS Text
Title: A320 series flight crew experiences a track deviation and an unstabilized approach during the VOR DME 25 approach to MSLP. The company briefing page requires that 'No Star' be selected in the FMC after selecting the VOR DME 25 procedure; in order for the correct outbound course to displayed and programed. This was not done; causing the aircraft to fly outbound on the inbound course (066 Radial) and ATC to issue a vector. The vector is declined and the approach continued visually; but unstabilized; to landing.
Narrative: The VOR DME 25 approach requires the A320 to select 'No Star' after selecting the VOR 25 approach. After selecting 'No Star' then selecting 'Cat 1' will program the correct outbound heading after crossing the CAT VOR. Although the 10-7 [briefing] page does note that this is to be done; there is no caution or emphasis to the fact that if CAT 1 is not selected that the aircraft as programmed will in actuality fly the heading/reciprocal 065 heading. Having seen this approach twice and witnessing the incorrect procedure; this can be avoided by confirming in the FMS that the actual heading outbound of the CAT VOR is and will be 090. If CAT 1 is not selected the FMS will depict a course that looks like the depicted and correct procedure; however it is not. Crews must confirm that CAT 1 is first selected as directed by the 10-7 page and that the FMS shows the proper outbound course. A caution or emphasis to this situation should be added to the 10-7 page.
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.