SDR AALA202003309007

Service difficulty report · Sensor · Boeing 737823

Difficulty date: March 27, 2020
Submitted: March 30, 2020
Operation: Air carrier
Aircraft: N944AN
Make and model: Boeing 737823
Aircraft serial: 29535
Aircraft time: 58,585 hours, 24,082 cycles
System (JASC): 3418 · Stall Warning System
Part: Sensor
Part number: S233T9135
Part serial: 3616
Condition: Faulty
Location: Aoa
Stage of operation: CL
How discovered: O
Nature of condition: N
Precautionary procedure: A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AIRCRAFT WAS GROUNDED: SPD LIM FLAG ON CA PFD STICK SHAKER ACTIVATED,TWICE, AUTO SLAT FAIL, AIRSPEED INDICATIONS WERE,NORMAL, ALL HAPPENED ON CLIMBOUT. RETURNED TO BOS. ACCOMPLISHED SYMD BITE REF FIM 27-32-00-810-801 FOUND MX MSG 27-31004 AOA SIG ERROR T/S PER FIM 27-32-00-810-809 REPLACED LEFT AOA SENSOR IAW AMM 34-21-05-401.