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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Altimeter setting - air carrier gets the wrong altimeter setting and an alert approach controller brings it to the flight crew's attention.
| Attributes | |
| ACN | 303210 |
| Time | |
| Date | 199504 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 6600 msl bound upper : 7000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain observation : company check pilot oversight : pic |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 140 flight time total : 16000 flight time type : 13000 |
| ASRS Report | 303210 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer instruction : trainee |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course other other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Triple failure. Moderate turbulence, surface winds gusting to 40 KTS, cumulus clouds with rain showers. So copied altimeter on ATIS as 29.86. We set all altimeters. Descending to 7000 ft controller advised us that we were below 7000 ft. Checking altimeter settings we discovered that setting should have been 29.26. Stopped descent at 6600 ft. We were distracted by turbulence, passenger and flight attendant considerations, approach briefings, checklists, etc. Also, new copilot training in progress increased workload.
Original NASA ASRS Text
Title: ALTIMETER SETTING - ACR GETS THE WRONG ALTIMETER SETTING AND AN ALERT APCH CTLR BRINGS IT TO THE FLC'S ATTN.
Narrative: TRIPLE FAILURE. MODERATE TURB, SURFACE WINDS GUSTING TO 40 KTS, CUMULUS CLOUDS WITH RAIN SHOWERS. SO COPIED ALTIMETER ON ATIS AS 29.86. WE SET ALL ALTIMETERS. DSNDING TO 7000 FT CTLR ADVISED US THAT WE WERE BELOW 7000 FT. CHKING ALTIMETER SETTINGS WE DISCOVERED THAT SETTING SHOULD HAVE BEEN 29.26. STOPPED DSCNT AT 6600 FT. WE WERE DISTRACTED BY TURB, PAX AND FLT ATTENDANT CONSIDERATIONS, APCH BRIEFINGS, CHKLISTS, ETC. ALSO, NEW COPLT TRAINING IN PROGRESS INCREASED WORKLOAD.
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.