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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Widebody transport flight crew fail to properly set altimeter causing altitude deviation. Wrong altimeter setting.
| Attributes | |
| ACN | 339110 |
| Time | |
| Date | 199606 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : cvc airport : nrt |
| State Reference | FO |
| Altitude | msl bound lower : 5700 msl bound upper : 6000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : nrt |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 20000 flight time type : 3500 |
| ASRS Report | 339110 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other |
| Independent Detector | 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:
At 14000 ft were assigned 6000 ft by nrt approach and told to expedite our descent to cross aries at 6000 ft and hold at aries. We received altimeter settings of 992 hpa and 29.31 inches. We discovered that our altimeters were not set to 29.31 inches. We reset our altimeters and climbed from 5700 ft to 6000 ft. After 12 hours 30 mins of flight time, I believe that fatigue and the distraction of an ATC clearance contributed to this situation.
Original NASA ASRS Text
Title: WDB FLC FAIL TO PROPERLY SET ALTIMETER CAUSING ALTDEV. WRONG ALTIMETER SETTING.
Narrative: AT 14000 FT WERE ASSIGNED 6000 FT BY NRT APCH AND TOLD TO EXPEDITE OUR DSCNT TO CROSS ARIES AT 6000 FT AND HOLD AT ARIES. WE RECEIVED ALTIMETER SETTINGS OF 992 HPA AND 29.31 INCHES. WE DISCOVERED THAT OUR ALTIMETERS WERE NOT SET TO 29.31 INCHES. WE RESET OUR ALTIMETERS AND CLBED FROM 5700 FT TO 6000 FT. AFTER 12 HRS 30 MINS OF FLT TIME, I BELIEVE THAT FATIGUE AND THE DISTR OF AN ATC CLRNC CONTRIBUTED TO THIS SIT.
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.