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Flight crew of an medium large transport descended below descent assigned altitude due to the autoplt not capturing the preselected altitude.
| Attributes | |
| ACN | 360810 |
| Time | |
| Date | 199702 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : lgc airport : atl |
| State Reference | GA |
| Altitude | msl bound lower : 10600 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : atl |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 150 flight time total : 14000 flight time type : 2800 |
| ASRS Report | 360810 |
| 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 | 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 into atl on lagrange arrival cleared to 11000 ft MSL. Altitude capture. Aircraft descended to 10600 ft, immediate correction made to 11000 ft MSL. No conflict. Crew had minimum crew rest due to late arrival night before. Distracted by sun in face and poor view of instruments to some extent due to sun. Also distracted by reviewing approach plate for landing.
Original NASA ASRS Text
Title: FLC OF AN MLG DSNDED BELOW DSCNT ASSIGNED ALT DUE TO THE AUTOPLT NOT CAPTURING THE PRESELECTED ALT.
Narrative: DSNDING INTO ATL ON LAGRANGE ARR CLRED TO 11000 FT MSL. ALT CAPTURE. ACFT DSNDED TO 10600 FT, IMMEDIATE CORRECTION MADE TO 11000 FT MSL. NO CONFLICT. CREW HAD MINIMUM CREW REST DUE TO LATE ARR NIGHT BEFORE. DISTRACTED BY SUN IN FACE AND POOR VIEW OF INSTS TO SOME EXTENT DUE TO SUN. ALSO DISTRACTED BY REVIEWING APCH PLATE FOR LNDG.
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.