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Air carrier flight crew following company procedure to have captain's and first officer's altimeters set to QFE for takeoff, and use center standby altimeter, which is set to qnh, for intermediate altitude level off. Contributes to altitude overshoot.
| Attributes | |
| ACN | 130776 |
| Time | |
| Date | 198912 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | agl bound lower : 5000 agl bound upper : 5300 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord tower : dtw |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 85 flight time total : 6000 flight time type : 85 |
| ASRS Report | 130776 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : became reoriented flight crew : returned to assigned altitude |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After takeoff from ord, given radar vectors for peotone. Heading 180 degrees, altitude assigned 5000'. Overshoot occurred to 5300', then immediately recovered back to 5000' (overshoot discovered by aural warning). Captain's and first officer's altimeters were set to QFE for takeoff and landing. I was reading my altimeter for the level off instead of the center altimeter, which was set to qna. I have not developed a system for the scanning of the center altimeter yet (I'm relatively new to the airplane), so I'm constantly second guessing the altimeter on my panel--'what is it set to now?' I'm not sure the value of this altimeter setting system.
Original NASA ASRS Text
Title: ACR FLT CREW FOLLOWING COMPANY PROC TO HAVE CAPT'S AND FO'S ALTIMETERS SET TO QFE FOR TKOF, AND USE CENTER STANDBY ALTIMETER, WHICH IS SET TO QNH, FOR INTERMEDIATE ALT LEVEL OFF. CONTRIBUTES TO ALT OVERSHOOT.
Narrative: AFTER TKOF FROM ORD, GIVEN RADAR VECTORS FOR PEOTONE. HDG 180 DEGS, ALT ASSIGNED 5000'. OVERSHOOT OCCURRED TO 5300', THEN IMMEDIATELY RECOVERED BACK TO 5000' (OVERSHOOT DISCOVERED BY AURAL WARNING). CAPT'S AND F/O'S ALTIMETERS WERE SET TO QFE FOR TKOF AND LNDG. I WAS READING MY ALTIMETER FOR THE LEVEL OFF INSTEAD OF THE CENTER ALTIMETER, WHICH WAS SET TO QNA. I HAVE NOT DEVELOPED A SYSTEM FOR THE SCANNING OF THE CENTER ALTIMETER YET (I'M RELATIVELY NEW TO THE AIRPLANE), SO I'M CONSTANTLY SECOND GUESSING THE ALTIMETER ON MY PANEL--'WHAT IS IT SET TO NOW?' I'M NOT SURE THE VALUE OF THIS ALTIMETER SETTING SYS.
Data retrieved from NASA's ASRS site as of August 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.