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Flight crew of an MD11 undershot altitude by 400 ft during descent due to mis-setting their altimeters.
| Attributes | |
| ACN | 427320 |
| Time | |
| Date | 199901 |
| Day | Sun |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | airport : ewr |
| State Reference | NJ |
| Altitude | agl bound lower : 0 agl bound upper : 8400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-11 |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : flight engineer |
| Experience | flight time last 90 days : 155 flight time total : 6000 flight time type : 1600 |
| ASRS Report | 427320 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : undershoot |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Received altimeter setting from ZNY, rogered back 30.08. Actual altimeter setting 30.48. At leveloffs on robbinsville approach (SID) to ewr we were approximately 400 ft high until intercept. GS for runway 4R ILS. Did not discover altimeter error until radar altimeter activated at 2500 ft AGL.
Original NASA ASRS Text
Title: FLC OF AN MD11 UNDERSHOT ALT BY 400 FT DURING DSCNT DUE TO MIS-SETTING THEIR ALTIMETERS.
Narrative: RECEIVED ALTIMETER SETTING FROM ZNY, ROGERED BACK 30.08. ACTUAL ALTIMETER SETTING 30.48. AT LEVELOFFS ON ROBBINSVILLE APCH (SID) TO EWR WE WERE APPROX 400 FT HIGH UNTIL INTERCEPT. GS FOR RWY 4R ILS. DID NOT DISCOVER ALTIMETER ERROR UNTIL RADAR ALTIMETER ACTIVATED AT 2500 FT AGL.
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.