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A descending L188 electra cargo flight overshoots its assigned altitude when the first officer misreads his instrument and goes to FL200 versus FL210 north of fwa, in.
| Attributes | |
| ACN | 475050 |
| Time | |
| Date | 200006 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : fwa.airport |
| State Reference | IN |
| Altitude | msl bound lower : 20000 msl bound upper : 21000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Electra L-188 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : cruxx |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 130 flight time total : 13000 |
| ASRS Report | 475050 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : company policies non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued advisory controller : issued new clearance flight crew : returned to original clearance |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While descending from FL230 to FL210, first officer misread his altimeter and descended to FL200. This error was first noted by ATC. Immediate corrective action was taken with an immediate climb to FL210 within 20 seconds of initiation. ATC controller was asked if we had created a 'deal,' his response was negative, with a clearance to descend to FL180 (or lower?).
Original NASA ASRS Text
Title: A DSNDING L188 ELECTRA CARGO FLT OVERSHOOTS ITS ASSIGNED ALT WHEN THE FO MISREADS HIS INST AND GOES TO FL200 VERSUS FL210 N OF FWA, IN.
Narrative: WHILE DSNDING FROM FL230 TO FL210, FO MISREAD HIS ALTIMETER AND DSNDED TO FL200. THIS ERROR WAS FIRST NOTED BY ATC. IMMEDIATE CORRECTIVE ACTION WAS TAKEN WITH AN IMMEDIATE CLB TO FL210 WITHIN 20 SECONDS OF INITIATION. ATC CTLR WAS ASKED IF WE HAD CREATED A 'DEAL,' HIS RESPONSE WAS NEGATIVE, WITH A CLRNC TO DSND TO FL180 (OR LOWER?).
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.