<< >> NASA ASRS Report 1655306, May 2019

B737 pilot reported captain's airspeed display unreliable.

Attributes
ACN	1655306
Time
Date	201905
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Airspeed Indicator
Person 1
Function	Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

I was the pilot flying. After takeoff and final flap retraction; we had a momentary stick shaker. We confirmed aircraft attitude and airspeed were normal. The captain's display showed an amber spd limit light and minimum speed bar. First officer's (first officer's) display showed normal indications. We informed ATC of our problem and returned to ZZZ. I remained the pilot flying. We completed the QRH for unreliable airspeed. Per the QRH; we were able to reengage the flight director and autopilot; but not use the autothrottles. We had extended vectors to burn off fuel so as to not exceed landing weight. As we got closer to the airport; ATC asked if we needed the fire trucks. We told them we did not need them. We landed without incident and returned to the gate.

Related reports:

• Reported situation of numerous problems of speed and track j...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: B737 Pilot reported Captain's airspeed display unreliable.

Narrative: I was the pilot flying. After takeoff and final flap retraction; we had a momentary stick shaker. We confirmed aircraft attitude and airspeed were normal. The Captain's display showed an Amber Spd Limit light and minimum speed bar. FO's (First Officer's) display showed normal indications. We informed ATC of our problem and returned to ZZZ. I remained the pilot flying. We completed the QRH for Unreliable Airspeed. Per the QRH; we were able to reengage the flight director and autopilot; but not use the autothrottles. We had extended vectors to burn off fuel so as to not exceed landing weight. As we got closer to the airport; ATC asked if we needed the fire trucks. We told them we did not need them. We landed without incident and returned to the gate.

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.