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Wrong altimeter setting -- 30 pt 17 versus 29 pt 67. Noted by so and flight crew corrected their altimeters before starting approach.
| Attributes | |
| ACN | 198315 |
| Time | |
| Date | 199112 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sfo |
| State Reference | CA |
| Altitude | msl bound lower : 10000 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : oak |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent : approach |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 210 flight time total : 10000 flight time type : 210 |
| ASRS Report | 198315 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : atp pilot : instrument |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence other other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : became reoriented 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:
The engineer threw the ATIS up onto the center console (or perhaps he handed it up to me and I put it up there). The altimeter on the ATIS called for 30.17. When we set this in up front and ran the approach check the sharp engineer remembered that he had copied down 29.67 and brought this to our attention. We turned the ATIS sheet over and saw that we had put the departure ATIS face up rather than the arrival ATIS which he had copied on the descent. WX at our destination was at 300 ft and the difference in altimeter settings between 30.17 and 29.67 was 500 ft. Had this not have been caught by the engineer or later through ATC the results may have been disastrous. This could be the result of having the company departure/arrival ATIS on the same sheet. It may be an occasional mistake, but in the wrong WX and with some distrs it may be fatal.
Original NASA ASRS Text
Title: WRONG ALTIMETER SETTING -- 30 PT 17 VERSUS 29 PT 67. NOTED BY SO AND FLC CORRECTED THEIR ALTIMETERS BEFORE STARTING APCH.
Narrative: THE ENGINEER THREW THE ATIS UP ONTO THE CENTER CONSOLE (OR PERHAPS HE HANDED IT UP TO ME AND I PUT IT UP THERE). THE ALTIMETER ON THE ATIS CALLED FOR 30.17. WHEN WE SET THIS IN UP FRONT AND RAN THE APCH CHK THE SHARP ENGINEER REMEMBERED THAT HE HAD COPIED DOWN 29.67 AND BROUGHT THIS TO OUR ATTN. WE TURNED THE ATIS SHEET OVER AND SAW THAT WE HAD PUT THE DEP ATIS FACE UP RATHER THAN THE ARR ATIS WHICH HE HAD COPIED ON THE DSCNT. WX AT OUR DEST WAS AT 300 FT AND THE DIFFERENCE IN ALTIMETER SETTINGS BTWN 30.17 AND 29.67 WAS 500 FT. HAD THIS NOT HAVE BEEN CAUGHT BY THE ENGINEER OR LATER THROUGH ATC THE RESULTS MAY HAVE BEEN DISASTROUS. THIS COULD BE THE RESULT OF HAVING THE COMPANY DEP/ARR ATIS ON THE SAME SHEET. IT MAY BE AN OCCASIONAL MISTAKE, BUT IN THE WRONG WX AND WITH SOME DISTRS IT MAY BE FATAL.
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.