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Flight crew of an large transport put the wrong altimeter setting in when passing FL180 resulting in their aircraft being approximately 500 ft low.
| Attributes | |
| ACN | 334410 |
| Time | |
| Date | 199604 |
| Day | Fri |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 10500 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 70 flight time total : 4000 flight time type : 200 |
| ASRS Report | 334410 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : undershoot non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Copilot did not erase wrong altimeter setting from landing data card. When passing 18000 ft, crew put in wrong altimeter setting in both altimeters. Aircraft leveled at 11000 ft on altitude and cruised for approximately 8 mi until correcting the mistake. Aircraft was approximately 400-500 ft low for this time period, ie, when wrong information is put on paper -- erase it before it's taken as the correct information.
Original NASA ASRS Text
Title: FLC OF AN LGT PUT THE WRONG ALTIMETER SETTING IN WHEN PASSING FL180 RESULTING IN THEIR ACFT BEING APPROX 500 FT LOW.
Narrative: COPLT DID NOT ERASE WRONG ALTIMETER SETTING FROM LNDG DATA CARD. WHEN PASSING 18000 FT, CREW PUT IN WRONG ALTIMETER SETTING IN BOTH ALTIMETERS. ACFT LEVELED AT 11000 FT ON ALT AND CRUISED FOR APPROX 8 MI UNTIL CORRECTING THE MISTAKE. ACFT WAS APPROX 400-500 FT LOW FOR THIS TIME PERIOD, IE, WHEN WRONG INFO IS PUT ON PAPER -- ERASE IT BEFORE IT'S TAKEN AS THE CORRECT INFO.
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.