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Flight crew of an mdt turboprop forgot to reset their altimeters going through FL180 resulting in overshooting assigned altitude and ATC intervention.
| Attributes | |
| ACN | 385147 |
| Time | |
| Date | 199711 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : seg |
| State Reference | PA |
| Altitude | msl bound lower : 20000 msl bound upper : 20500 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 12000 flight time type : 6000 |
| ASRS Report | 385147 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : atp pilot : commercial pilot : cfi |
| Experience | flight time last 90 days : 240 flight time total : 7900 flight time type : 3000 |
| ASRS Report | 384680 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Climbed to FL200 and didn't set altimeter to 29.92. Generally fly below flight levels and at time didn't think about it. It was discovered when ATC asked us our altitude. Be more alert when flying up to flight levels, and try to call altitude setting after passing FL180.
Original NASA ASRS Text
Title: FLC OF AN MDT TURBOPROP FORGOT TO RESET THEIR ALTIMETERS GOING THROUGH FL180 RESULTING IN OVERSHOOTING ASSIGNED ALT AND ATC INTERVENTION.
Narrative: CLBED TO FL200 AND DIDN'T SET ALTIMETER TO 29.92. GENERALLY FLY BELOW FLT LEVELS AND AT TIME DIDN'T THINK ABOUT IT. IT WAS DISCOVERED WHEN ATC ASKED US OUR ALT. BE MORE ALERT WHEN FLYING UP TO FLT LEVELS, AND TRY TO CALL ALT SETTING AFTER PASSING FL180.
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.