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B737 captain accepted clearance to FL290 and maintain speed 280 KTS while the first officer was making a PA. The captain mistakenly entered 280 in the MCP altitude window and descended to FL280.
| Attributes | |
| ACN | 871226 |
| Time | |
| Date | 201001 |
| Place | |
| Locale Reference | ZLA.ARTCC |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying Captain |
| Experience | Flight Crew Last 90 Days 294 |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Experience | Flight Crew Last 90 Days 118 Flight Crew Type 5000 |
| Events | |
| Anomaly | Deviation - Altitude Overshoot Deviation - Procedural Clearance |
Narrative:
We were told to descend from FL320 to FL290 and maintain 280 KTS. I was flying and put FL280 in the window and the descended to FL280. ATC told us to climb back up to FL290. There were no other complications.
Original NASA ASRS Text
Title: B737 Captain accepted clearance to FL290 and maintain speed 280 KTS while the First Officer was making a PA. The Captain mistakenly entered 280 in the MCP altitude window and descended to FL280.
Narrative: We were told to descend from FL320 to FL290 and maintain 280 KTS. I was flying and put FL280 in the window and the descended to FL280. ATC told us to climb back up to FL290. There were no other complications.
Data retrieved from NASA's ASRS site as of April 2012 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.