SDR AALA202005089002

Service difficulty report · Unknown · Boeing 737823

Difficulty date: May 6, 2020
Submitted: May 8, 2020
Operation: Air carrier
Aircraft: N940AN
Make and model: Boeing 737823
Aircraft serial: 30598
Aircraft time: 59,841 hours, 24,626 cycles
System (JASC): 2210 · Autopilot System
Part: Unknown
Condition: Malfunctioned
Location: Autopilot Sys
Stage of operation: DE
How discovered: O
Nature of condition: O
Precautionary procedure: O

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

What was found

AIRCRAFT NOT GROUNDED: DURING DESCENT AUTOPILOT KICKED OFF. LOST LNAV AND VNAV CAPABILITIES. TURNED FLIGHT DIRECTORS OFF. FOS STAYED DISPLAYED WITH INCORRECT INFORMATION. HAD TO DISCONNECT AUTOTHROTTLES BECAUSE FOS FMA ANNUNCIATED TOGA AND AUTOTHROTTLES MOVED FORWARD. ACCOMPLISHED DFCS BITE IAW 22-11-00, ACCOMPLISHED TOGA FIM TASK 22-13-00. RESET BOTH FCCS. ACCOMPLISHED LAND VERIFY IAW AMM 22-11-00.