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A B737-300 crew, on descent to sjc, overshot assigned altitude by 300 ft due to wrong altimeter setting.
| Attributes | |
| ACN | 538018 |
| Time | |
| Date | 200202 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | intersection : papee |
| State Reference | CA |
| Altitude | msl bound lower : 11700 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : o90.tracon tower : phx.tower |
| 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 |
| Route In Use | arrival star : el nido 5 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 14000 flight time type : 2500 |
| ASRS Report | 538018 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : company policies non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to assigned altitude other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
On descent, we entered altimeter 30.36 instead of 30.11 (correct altimeter). ATC questioned us as to our altimeter setting stating we were 300 ft low. He indicated there was no problem. We then set in 30.11 and corrected the error. We got the wrong altimeter from referring to the wrong ATIS. I had copied the sjc ATIS on the back side of the paper on which I had copied the slc ATIS on departure. When setting our altimeters on descent, we mistakenly looked at the slc ATIS.
Original NASA ASRS Text
Title: A B737-300 CREW, ON DSCNT TO SJC, OVERSHOT ASSIGNED ALT BY 300 FT DUE TO WRONG ALTIMETER SETTING.
Narrative: ON DSCNT, WE ENTERED ALTIMETER 30.36 INSTEAD OF 30.11 (CORRECT ALTIMETER). ATC QUESTIONED US AS TO OUR ALTIMETER SETTING STATING WE WERE 300 FT LOW. HE INDICATED THERE WAS NO PROB. WE THEN SET IN 30.11 AND CORRECTED THE ERROR. WE GOT THE WRONG ALTIMETER FROM REFERRING TO THE WRONG ATIS. I HAD COPIED THE SJC ATIS ON THE BACK SIDE OF THE PAPER ON WHICH I HAD COPIED THE SLC ATIS ON DEP. WHEN SETTING OUR ALTIMETERS ON DSCNT, WE MISTAKENLY LOOKED AT THE SLC ATIS.
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.