SDR ASAA2021102836447

Service difficulty report · Unknown · Boeing 737890

Difficulty date: October 28, 2021
Submitted: November 2, 2021
Operation: Air carrier
Aircraft: N531AS
Make and model: Boeing 737890
Aircraft serial: 35199
Aircraft time: 40,426 hours, 11,724 cycles
System (JASC): 2210 · Autopilot System
Part: Unknown
Part number: UNKNOWN
Condition: Unknown
Location: Unknown
Stage of operation: CR
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

AUTO PILOT 'A' DISCONNECTED 3 TIMES AT CRUISE, SELECTED AUTO PILOT 'B' WITH NO ISSUES. GROUNDED - YES. (RESOLVED ON W/O: 1889138 TASKCARD: N/R-00001 ) RESET SYSTEM AND RAN RTS TEST PER B737-800 AMM 22-11-00/201, OPS CHECK GOOD. NO TRAX HISTORY LAST 30 DAYS. AIRCRAFT IS AUTOLAND AND HGS CAT III QUALIFIED, CLEARS MEL 22-1F AND 22-99B, CONTROL NUMBER 29005531, NO AIRCRAFT CONFIGURATION CHANGE. SEAMC MARK NOTIFIED.