Service difficulty report · Switch · Airbus A321231

Difficulty date
June 19, 2026
Submitted
June 23, 2026
Operation
Air carrier
Aircraft
N905AU
Make and model
Airbus A321231
Aircraft serial
7700
Aircraft time
28,295 hours, 11,361 cycles
Part
Switch
Part number
825UN01A4AD0A
Condition
Faulty
Location
Zone 200
Stage of operation
IN
How discovered
V
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

AIRCRAFT WAS NOT GROUNDED: EMERGENCY LIGHTS WON'T SHUT OFF. MAINTENANCE REPLACED EMERGENCY LIGHT SWITCH (4WL) PER ESMP 20-45-21 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK OF THE EMERGENCY LIGHTS WITH NO ISSUES NOTED.

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