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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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New route clearance received from ZJX. As both pilots are distraction with omega input the autoplt disconnects. Flight crew made aware of altitude deviation when altitude alert goes off. Nothing said by ATC as crew gets back to assigned altitude.
| Attributes | |
| ACN | 378600 |
| Time | |
| Date | 199708 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : cew |
| State Reference | FL |
| Altitude | msl bound lower : 23500 msl bound upper : 24000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 378600 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| ASRS Report | 378509 |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : overcame equipment problem flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
First officer flying. We were given new clearance. Both of us were working on the omega to put in new fix. All of a sudden, altitude alert goes off. We had descended to FL235 before we corrected back to FL240. ATC never mentioned our deviation. Supplemental information from acn 378509: autoplt disengaged for unknown reason.
Original NASA ASRS Text
Title: NEW RTE CLRNC RECEIVED FROM ZJX. AS BOTH PLTS ARE DISTR WITH OMEGA INPUT THE AUTOPLT DISCONNECTS. FLC MADE AWARE OF ALTDEV WHEN ALT ALERT GOES OFF. NOTHING SAID BY ATC AS CREW GETS BACK TO ASSIGNED ALT.
Narrative: FO FLYING. WE WERE GIVEN NEW CLRNC. BOTH OF US WERE WORKING ON THE OMEGA TO PUT IN NEW FIX. ALL OF A SUDDEN, ALT ALERT GOES OFF. WE HAD DSNDED TO FL235 BEFORE WE CORRECTED BACK TO FL240. ATC NEVER MENTIONED OUR DEV. SUPPLEMENTAL INFO FROM ACN 378509: AUTOPLT DISENGAGED FOR UNKNOWN REASON.
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.