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Captain of an airbus A320 overshot STAR arrival crossing altitude due to misprogramming FMS and leveled at the next crossing altitude restr.
| Attributes | |
| ACN | 474655 |
| Time | |
| Date | 200006 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : pdz.vor |
| State Reference | CA |
| Altitude | msl bound lower : 12000 msl bound upper : 14000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | descent : vacating altitude |
| Route In Use | arrival star : pdz 3 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 16000 flight time type : 125 |
| ASRS Report | 474655 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : overshoot non adherence : published procedure non adherence : clearance |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment other aircraft equipment : altimeter other flight crewa |
| Resolutory Action | none taken : anomaly accepted other |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Just prior to konzl on the pdz 3 arrival to lax we were cleared to 17000 ft. As we were leveling at 17000 ft (altimeter on the FMA), we were cleared to descend on the arrival. I selected 8000 ft in the altitude window and managed descent to comply with the arrival restrictions. However, the aircraft was in vertical speed at that point, headed to 8000 ft. When the aircraft descended below 14000 ft prior to rifft, I noticed the problem and immediately notified ATC. We leveled at 12000 ft. Then we were cleared the visual to runway 25L and switched to visual runway 24R by tower. There were no traffic conflicts associated with the missed crossing restr. During training I had been warned about the altitude and situation and possible consequences. This was my first experience encountering it and now I know to watch the FMA more closely on the dscnts, especially into lax.
Original NASA ASRS Text
Title: CAPT OF AN AIRBUS A320 OVERSHOT STAR ARR XING ALT DUE TO MISPROGRAMMING FMS AND LEVELED AT THE NEXT XING ALT RESTR.
Narrative: JUST PRIOR TO KONZL ON THE PDZ 3 ARR TO LAX WE WERE CLRED TO 17000 FT. AS WE WERE LEVELING AT 17000 FT (ALTIMETER ON THE FMA), WE WERE CLRED TO DSND ON THE ARR. I SELECTED 8000 FT IN THE ALT WINDOW AND MANAGED DSCNT TO COMPLY WITH THE ARR RESTRICTIONS. HOWEVER, THE ACFT WAS IN VERT SPD AT THAT POINT, HEADED TO 8000 FT. WHEN THE ACFT DSNDED BELOW 14000 FT PRIOR TO RIFFT, I NOTICED THE PROB AND IMMEDIATELY NOTIFIED ATC. WE LEVELED AT 12000 FT. THEN WE WERE CLRED THE VISUAL TO RWY 25L AND SWITCHED TO VISUAL RWY 24R BY TWR. THERE WERE NO TFC CONFLICTS ASSOCIATED WITH THE MISSED XING RESTR. DURING TRAINING I HAD BEEN WARNED ABOUT THE ALT AND SIT AND POSSIBLE CONSEQUENCES. THIS WAS MY FIRST EXPERIENCE ENCOUNTERING IT AND NOW I KNOW TO WATCH THE FMA MORE CLOSELY ON THE DSCNTS, ESPECIALLY INTO LAX.
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.