Service difficulty report · Unknown · Boeing 737

Difficulty date
September 1, 2022
Submitted
September 2, 2022
Operation
Air carrier
Aircraft
N478AS
Make and model
Boeing 737
Aircraft serial
44105
Aircraft time
26,418 hours, 8,363 cycles
Part
Unknown
Part number
SW43896
Condition
Failed
Location
Flight Deck
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
K

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

What was found

AURAL WAILER DOES NOT SOUND WHEN EITHER AUTOPILOT IS DISCONNECTED. GROUNDED - YES. REF B737-900 AMM 22-11-41, REMOVED/REPLACED F/O'S YOKE A/P DISENGAGE SWITCH.