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A B737-300 flight overshoots its assigned altitude on an incorrect wrong altimeter setting received via ACARS on frequency with ZDC, dc.
| Attributes | |
| ACN | 535957 |
| Time | |
| Date | 200201 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zny.artcc |
| State Reference | NY |
| Altitude | msl bound lower : 16600 msl bound upper : 17000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 13000 flight time type : 3000 |
| ASRS Report | 535957 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued advisory flight crew : became reoriented flight crew : returned to assigned altitude |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Weather Company Flight Crew Human Performance Aircraft |
| Primary Problem | Company |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Crew was cleared to descend and maintain 17000 ft. On leaving FL180 we reset altimeter based on a WX sequence received from ACARS. After leveling at 17000 ft, center questioned our altitude and advised us the altimeter was 29.87. We had set 30.32. We were approximately 400 ft off our altitude. We made the correction. We rechked the ACARS WX sequence several times and then copied it exactly as it appeared on our screen. We had been given bad information and were 400 ft off our altitude as a result of that information.
Original NASA ASRS Text
Title: A B737-300 FLT OVERSHOOTS ITS ASSIGNED ALT ON AN INCORRECT WRONG ALTIMETER SETTING RECEIVED VIA ACARS ON FREQ WITH ZDC, DC.
Narrative: CREW WAS CLRED TO DSND AND MAINTAIN 17000 FT. ON LEAVING FL180 WE RESET ALTIMETER BASED ON A WX SEQUENCE RECEIVED FROM ACARS. AFTER LEVELING AT 17000 FT, CTR QUESTIONED OUR ALT AND ADVISED US THE ALTIMETER WAS 29.87. WE HAD SET 30.32. WE WERE APPROX 400 FT OFF OUR ALT. WE MADE THE CORRECTION. WE RECHKED THE ACARS WX SEQUENCE SEVERAL TIMES AND THEN COPIED IT EXACTLY AS IT APPEARED ON OUR SCREEN. WE HAD BEEN GIVEN BAD INFO AND WERE 400 FT OFF OUR ALT AS A RESULT OF THAT INFO.
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.