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Altitude deviation altitude overshot when the altitude set in the MCP is not in accordance with the crossing restr altitude at mazat, az.
| Attributes | |
| ACN | 508120 |
| Time | |
| Date | 200104 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | intersection : mazat |
| State Reference | AZ |
| Altitude | msl bound lower : 11500 msl bound upper : 12000 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Flight Phase | descent : approach |
| Route In Use | arrival star : fossil 6 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time type : 32 |
| ASRS Report | 508120 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : published procedure non adherence : company policies non adherence : clearance |
| Resolutory Action | controller : issued new clearance flight crew : became reoriented flight crew : returned to assigned altitude flight crew : overrode automation |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Descending to cross mazat (fossl 6 arrival) at 12000 ft, 250 KTS, ATC cleared us to 8000 ft after mazat. MCP window was set to 8000 ft prior to crossing mazat. Aircraft descended to below 12000 ft and I leveled off at 11500 ft. I started to climb back to 12000 ft when approach control said just to continue to 8000 ft. Discussed with first officer our violation of SOP in not setting the most restrictive altitude in MCP window. I am a brand new captain (first flight after IOE) and have learned from this incident. SOP was violated by my not telling the first officer to put 12000 ft in the MCP altitude window after seeing him set 8000 ft. It won't happen again.
Original NASA ASRS Text
Title: ALTDEV ALT OVERSHOT WHEN THE ALT SET IN THE MCP IS NOT IN ACCORDANCE WITH THE XING RESTR ALT AT MAZAT, AZ.
Narrative: DSNDING TO CROSS MAZAT (FOSSL 6 ARR) AT 12000 FT, 250 KTS, ATC CLRED US TO 8000 FT AFTER MAZAT. MCP WINDOW WAS SET TO 8000 FT PRIOR TO XING MAZAT. ACFT DSNDED TO BELOW 12000 FT AND I LEVELED OFF AT 11500 FT. I STARTED TO CLB BACK TO 12000 FT WHEN APCH CTL SAID JUST TO CONTINUE TO 8000 FT. DISCUSSED WITH FO OUR VIOLATION OF SOP IN NOT SETTING THE MOST RESTRICTIVE ALT IN MCP WINDOW. I AM A BRAND NEW CAPT (FIRST FLT AFTER IOE) AND HAVE LEARNED FROM THIS INCIDENT. SOP WAS VIOLATED BY MY NOT TELLING THE FO TO PUT 12000 FT IN THE MCP ALT WINDOW AFTER SEEING HIM SET 8000 FT. IT WON'T HAPPEN AGAIN.
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.