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MD90 aircraft in descent overshot assigned altitude by 400 ft. Flight crew was distracted with WX deviation and programming FMS with new runway.
| Attributes | |
| ACN | 397520 |
| Time | |
| Date | 199803 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : slc |
| State Reference | UT |
| Altitude | msl bound lower : 14600 msl bound upper : 15000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : slc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-90 Series (DC-9-90) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other descent other |
| Route In Use | enroute : on vectors enroute airway : slc |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 5000 flight time type : 1500 |
| ASRS Report | 397520 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Descending with slc approach control, clearance was given to 15000 ft. Missed altitude and recovered at 14600 ft. During recovery to 15000 ft, approach asked us to check our altitude. Two contributing factors: 1) we were deviating to stay clear of WX, 2) approach had just assigned a different runway to us for landing. Our workload was high and we didn't notice that the altitude capture feature was not armed when setting in 15000 ft. We noticed the deviation when the aural 'altitude' warning was activated. The high workload situation distracted us both from watching the aircraft to make sure it captured the altitude. Lesson learned: keep your priorities straight and fly the airplane first.
Original NASA ASRS Text
Title: MD90 ACFT IN DSCNT OVERSHOT ASSIGNED ALT BY 400 FT. FLC WAS DISTRACTED WITH WX DEV AND PROGRAMMING FMS WITH NEW RWY.
Narrative: DSNDING WITH SLC APCH CTL, CLRNC WAS GIVEN TO 15000 FT. MISSED ALT AND RECOVERED AT 14600 FT. DURING RECOVERY TO 15000 FT, APCH ASKED US TO CHK OUR ALT. TWO CONTRIBUTING FACTORS: 1) WE WERE DEVIATING TO STAY CLR OF WX, 2) APCH HAD JUST ASSIGNED A DIFFERENT RWY TO US FOR LNDG. OUR WORKLOAD WAS HIGH AND WE DIDN'T NOTICE THAT THE ALT CAPTURE FEATURE WAS NOT ARMED WHEN SETTING IN 15000 FT. WE NOTICED THE DEV WHEN THE AURAL 'ALT' WARNING WAS ACTIVATED. THE HIGH WORKLOAD SIT DISTRACTED US BOTH FROM WATCHING THE ACFT TO MAKE SURE IT CAPTURED THE ALT. LESSON LEARNED: KEEP YOUR PRIORITIES STRAIGHT AND FLY THE AIRPLANE FIRST.
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.