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Altitude deviation altitude excursion as autoplt trips off and alarm system fails to alert flight crew. FK100.
| Attributes | |
| ACN | 344466 |
| Time | |
| Date | 199608 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : buj |
| State Reference | TX |
| Altitude | msl bound lower : 11000 msl bound upper : 11300 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dfw |
| Operator | common carrier : air carrier |
| Make Model Name | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other 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 |
| ASRS Report | 344466 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| ASRS Report | 344450 |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : became reoriented flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
Location: 10 NM northeast of blue ridge VOR. While level at 11000 ft, the autoplt disengaged with no aural warning. The aircraft climbed approximately 300 ft before we noticed the problem and returned to assigned altitude of 11000 ft.
Original NASA ASRS Text
Title: ALTDEV ALT EXCURSION AS AUTOPLT TRIPS OFF AND ALARM SYS FAILS TO ALERT FLC. FK100.
Narrative: LOCATION: 10 NM NE OF BLUE RIDGE VOR. WHILE LEVEL AT 11000 FT, THE AUTOPLT DISENGAGED WITH NO AURAL WARNING. THE ACFT CLBED APPROX 300 FT BEFORE WE NOTICED THE PROB AND RETURNED TO ASSIGNED ALT OF 11000 FT.
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.