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A lear jet 24 first officer sets in the wrong altitude in the altitude alerter. The captain descends to that altitude instead of the altitude the first officer read back to ATC.
| Attributes | |
| ACN | 398830 |
| Time | |
| Date | 199804 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zzz |
| State Reference | US |
| Altitude | msl bound lower : 33000 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz |
| Operator | general aviation : corporate |
| Make Model Name | Learjet 24 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Learjet 24 |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : cfi pilot : instrument |
| Experience | flight time last 90 days : 150 flight time total : 3850 flight time type : 100 |
| ASRS Report | 398830 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance non adherence other other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While level at FL370, center advised us to descend to FL350. I read back the appropriate altitude, however, I placed FL330 in the altitude alerter. We were busy due to thunderstorm avoidance and the captain descended to FL330.
Original NASA ASRS Text
Title: A LEAR JET 24 FO SETS IN THE WRONG ALT IN THE ALT ALERTER. THE CAPT DSNDS TO THAT ALT INSTEAD OF THE ALT THE FO READ BACK TO ATC.
Narrative: WHILE LEVEL AT FL370, CTR ADVISED US TO DSND TO FL350. I READ BACK THE APPROPRIATE ALT, HOWEVER, I PLACED FL330 IN THE ALT ALERTER. WE WERE BUSY DUE TO TSTM AVOIDANCE AND THE CAPT DSNDED TO FL330.
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.