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Cleared descend to 8000 ft. Set in 3000 ft in FMC. Flight crew fatigue and new on aircraft. Controller called at 7600 ft altitude. Returned to 8000 ft. LR55.
| Attributes | |
| ACN | 342810 |
| Time | |
| Date | 199607 |
| Day | Tue |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : sdf |
| State Reference | KY |
| Altitude | msl bound lower : 7600 msl bound upper : 8000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : sdf |
| Operator | general aviation : corporate |
| Make Model Name | Learjet 55 |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 9800 flight time type : 7 |
| ASRS Report | 342810 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
In descent to approach at sdf we were given descent to 8000 ft from 14000 ft. I dialed in 3000 ft in the altitude alerter. At 7600 ft the controller asked our altitude and told us of the deviation. He then reclred us to 7000 ft. Reasons: fatigue. We had both been 'up' for 18 hours at this point and flew a trip previous with 3 hours flying. New aircraft. While we both have fresh 135 PIC checks, we have very little time in the LR55, and find our attention diverted to making sure things are set correctly (obviously I missed the altitude select!) and checklist items.
Original NASA ASRS Text
Title: CLRED DSND TO 8000 FT. SET IN 3000 FT IN FMC. FLC FATIGUE AND NEW ON ACFT. CTLR CALLED AT 7600 FT ALT. RETURNED TO 8000 FT. LR55.
Narrative: IN DSCNT TO APCH AT SDF WE WERE GIVEN DSCNT TO 8000 FT FROM 14000 FT. I DIALED IN 3000 FT IN THE ALT ALERTER. AT 7600 FT THE CTLR ASKED OUR ALT AND TOLD US OF THE DEV. HE THEN RECLRED US TO 7000 FT. REASONS: FATIGUE. WE HAD BOTH BEEN 'UP' FOR 18 HRS AT THIS POINT AND FLEW A TRIP PREVIOUS WITH 3 HRS FLYING. NEW ACFT. WHILE WE BOTH HAVE FRESH 135 PIC CHKS, WE HAVE VERY LITTLE TIME IN THE LR55, AND FIND OUR ATTN DIVERTED TO MAKING SURE THINGS ARE SET CORRECTLY (OBVIOUSLY I MISSED THE ALT SELECT!) AND CHKLIST ITEMS.
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.