SDR AALA2019081439013

Service difficulty report · Autopilot Sys · Airbus A321231

Difficulty date: August 12, 2019
Submitted: August 14, 2019
Operation: Air carrier
Aircraft: N507AY
Make and model: Airbus A321231
Aircraft serial: 3712
Aircraft time: 38,236 hours, 13,643 cycles
System (JASC): 2210 · Autopilot System
Part: Autopilot Sys
Condition: Malfunctioned
Location: Nr 2
Stage of operation: DE
How discovered: O
Nature of condition: F
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: PILOT REPORTS THROUGHOUT DESCENT AUTO PILOT NR 2 DESCENDED THRU SELECTED ALTITUDE THEN CLIMBED TO LEVEL OFF. SELECTED ALTITUDES WERE FL 33.0,FL 29.0, FL24.0, 12000' FT AND 7000 '. MAINTENANCE PERFORMED SATISFACTORY AFS TEST IAW AMM 22-96-00. NO FAULTS NOTED. UNABLE TO DUPLICATE FAULT.

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