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B737 flight crew reported an airspeed disagreement on takeoff roll and activation of the stick shaker on climbout.
| Attributes | |
| ACN | 1594975 |
| Time | |
| Date | 201811 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb Takeoff |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Autothrottle/Speed Control |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument |
| Person 2 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument Flight Crew Commercial |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Speed All Types |
Narrative:
During takeoff; [I] noticed first officer did not call 80 knots. At that time; the auto-throttles disconnected and the first officer announced that there was an airspeed disagreement. [It was] concluded that captain's airspeed was correct and continued the takeoff. During initial climb; the stick shaker activated and I flew the aircraft using pitch and power indications. We notified ATC that we had a malfunction and returned immediately to the airport. Completed all checklists and set up for landing runway xxl at ZZZ and landed without incident.aircraft equipment failure of pitot static or air data computer.
Original NASA ASRS Text
Title: B737 flight crew reported an airspeed disagreement on takeoff roll and activation of the stick shaker on climbout.
Narrative: During takeoff; [I] noticed First Officer did not call 80 knots. At that time; the auto-throttles disconnected and the First Officer announced that there was an airspeed disagreement. [It was] concluded that Captain's airspeed was correct and continued the takeoff. During initial climb; the stick shaker activated and I flew the aircraft using pitch and power indications. We notified ATC that we had a malfunction and returned immediately to the airport. Completed all checklists and set up for landing RWY XXL at ZZZ and landed without incident.Aircraft equipment failure of pitot static or air data computer.
Data retrieved from NASA's ASRS site 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.