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A DC9 flight crew levels at FL250 but the autoplt allows the aircraft to climb further to FL254 before the crew recovers and descends back to FL250.
| Attributes | |
| ACN | 393550 |
| Time | |
| Date | 199802 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : shb |
| State Reference | IN |
| Altitude | msl bound lower : 25000 msl bound upper : 25400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 18000 flight time type : 13000 |
| ASRS Report | 393550 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : instrument pilot : cfi |
| Experience | flight time last 90 days : 200 flight time total : 4300 flight time type : 850 |
| ASRS Report | 393403 |
| Events | |
| Anomaly | aircraft equipment problem : less severe 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 | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Leveling 25000 ft autoplt continued to climb to 25400 ft. We corrected back to 25000 ft immediately.
Original NASA ASRS Text
Title: A DC9 FLC LEVELS AT FL250 BUT THE AUTOPLT ALLOWS THE ACFT TO CLB FURTHER TO FL254 BEFORE THE CREW RECOVERS AND DSNDS BACK TO FL250.
Narrative: LEVELING 25000 FT AUTOPLT CONTINUED TO CLB TO 25400 FT. WE CORRECTED BACK TO 25000 FT IMMEDIATELY.
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.