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An A319's air data reference 1 (ADR1) failed after takeoff causing the captain's airspeed tape to become erratic. The first officer's airspeed was also unreliable. The flight returned to the point of departure.
| Attributes | |
| ACN | 845844 |
| Time | |
| Date | 200907 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZZ.Airport |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Air Data Computer |
| Person 1 | |
| Function | Captain Pilot Flying |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
After liftoff at approximately 300 ft. AGL the captain's speed tape became erratic; running off scale high followed by off scale low. Got overspeed warnings (false) and a/P inputs attempting to follow. Disconnected; climbed to 5;000 and leveled off. First officer's airspeed was varying plus or minus 20 kts. Ran ECAM and follow up. Acquired phone patch with dispatch and maintenance control and after discussion we turned back and made a normal landing. Apparent failure of adr 1 as it had a lengthy history. It seems rather senseless to me to route an aircraft with an apparent ongoing history of this problem on an extended over water flight. Not to mention changing the same part 3 times in 10 days. If you look at the background of the aircraft; a rational person would think twice before placing this aircraft in eow (extended over water) operation.
Original NASA ASRS Text
Title: An A319's Air Data Reference 1 (ADR1) failed after takeoff causing the Captain's airspeed tape to become erratic. The First Officer's Airspeed was also unreliable. The flight returned to the point of departure.
Narrative: After liftoff at approximately 300 ft. AGL the Captain's speed tape became erratic; running off scale high followed by off scale low. Got overspeed warnings (false) and A/P inputs attempting to follow. Disconnected; climbed to 5;000 and leveled off. First Officer's airspeed was varying plus or minus 20 kts. Ran ECAM and follow up. Acquired phone patch with Dispatch and Maintenance Control and after discussion we turned back and made a normal landing. Apparent failure of ADR 1 as it had a lengthy history. It seems rather senseless to me to route an aircraft with an apparent ongoing history of this problem on an extended over water flight. Not to mention changing the same part 3 times in 10 days. If you look at the background of the aircraft; a rational person would think twice before placing this aircraft in EOW (extended over water) operation.
Data retrieved from NASA's ASRS site as of April 2012 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.