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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Wrong altimeter setting used in descent procedure during STAR arrival in a night operation. Qne not reset to a local qnh. Altitude deviation altitude undershot in descent.
| Attributes | |
| ACN | 355432 |
| Time | |
| Date | 199612 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : sgd airport : oak |
| State Reference | CA |
| Altitude | msl bound lower : 11000 msl bound upper : 11440 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zoa |
| Operator | common carrier : air carrier |
| Make Model Name | MD-90 Series (DC-9-90) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial pilot : flight engineer pilot : instrument pilot : private |
| Experience | flight time last 90 days : 180 flight time total : 9000 flight time type : 2000 |
| ASRS Report | 355432 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : undershoot non adherence : published procedure other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We missed resetting our altimeter from 29.92 to 30.36 passing FL180. This error caused us to be about 440 ft high at locke. (Technically though, I believe the 11000 ft restr was removed because we were given a descent just before locke. Restr removed or not though, we had a 440 ft error in our altimeters.)
Original NASA ASRS Text
Title: WRONG ALTIMETER SETTING USED IN DSCNT PROC DURING STAR ARR IN A NIGHT OP. QNE NOT RESET TO A LCL QNH. ALTDEV ALT UNDERSHOT IN DSCNT.
Narrative: WE MISSED RESETTING OUR ALTIMETER FROM 29.92 TO 30.36 PASSING FL180. THIS ERROR CAUSED US TO BE ABOUT 440 FT HIGH AT LOCKE. (TECHNICALLY THOUGH, I BELIEVE THE 11000 FT RESTR WAS REMOVED BECAUSE WE WERE GIVEN A DSCNT JUST BEFORE LOCKE. RESTR REMOVED OR NOT THOUGH, WE HAD A 440 FT ERROR IN OUR ALTIMETERS.)
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.