 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Descending into a low pressure area with the wrong altimeter setting ends in an altitude overshoot that is caught by ATC as the aircraft descends below the published MSA.
| Attributes | |
| ACN | 567110 |
| Time | |
| Date | 200211 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : cyyz.airport |
| State Reference | ON |
| Altitude | msl bound lower : 2700 msl bound upper : 3000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| ASRS Report | 567110 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 567111 |
| Events | |
| Anomaly | altitude deviation : overshoot inflight encounter : weather inflight encounter other non adherence : published procedure non adherence : far |
| Independent Detector | other controllerb |
| Resolutory Action | controller : issued new clearance controller : issued alert flight crew : returned to assigned altitude flight crew : became reoriented |
| Consequence | other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Environmental Factor |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We set an incorrect altimeter setting leaving FL180. Approach control asked our altimeter setting emphasizing 29.28 inches as we were passing 2700 ft. Our assigned altitude had been 3000 ft. It was at this point that we noticed our error, set the correct altimeter setting and corrected back to 3000 ft. The approach controller stated we could continue descent to 2500 ft, but we had already initiated a climb back to 3000 ft.
Original NASA ASRS Text
Title: DSNDING INTO A LOW PRESSURE AREA WITH THE WRONG ALTIMETER SETTING ENDS IN AN ALT OVERSHOOT THAT IS CAUGHT BY ATC AS THE ACFT DSNDS BELOW THE PUBLISHED MSA.
Narrative: WE SET AN INCORRECT ALTIMETER SETTING LEAVING FL180. APCH CTL ASKED OUR ALTIMETER SETTING EMPHASIZING 29.28 INCHES AS WE WERE PASSING 2700 FT. OUR ASSIGNED ALT HAD BEEN 3000 FT. IT WAS AT THIS POINT THAT WE NOTICED OUR ERROR, SET THE CORRECT ALTIMETER SETTING AND CORRECTED BACK TO 3000 FT. THE APCH CTLR STATED WE COULD CONTINUE DSCNT TO 2500 FT, BUT WE HAD ALREADY INITIATED A CLB BACK TO 3000 FT.
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.