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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Center radar momentarily provided erroneous altitude readout for an air carrier aircraft in cruise in ZHU airspace.
| Attributes | |
| ACN | 403310 |
| Time | |
| Date | 199805 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : iah |
| State Reference | TX |
| Altitude | msl bound lower : 29000 msl bound upper : 29000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors enroute airway : zhu |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : instrument pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 60 flight time total : 4000 flight time type : 800 |
| ASRS Report | 303310 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
While cruising at FL290, center momentarily showed our altitude at FL277. There was no turbulence and the autoplt was engaged. We never deviated from FL290.
Original NASA ASRS Text
Title: CTR RADAR MOMENTARILY PROVIDED ERRONEOUS ALT READOUT FOR AN ACR ACFT IN CRUISE IN ZHU AIRSPACE.
Narrative: WHILE CRUISING AT FL290, CTR MOMENTARILY SHOWED OUR ALT AT FL277. THERE WAS NO TURB AND THE AUTOPLT WAS ENGAGED. WE NEVER DEVIATED FROM FL290.
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.