What was found
LEFT SOURCE OFF LIGHT ILLUMINATED WHEN ESTABLISHING ELECTRICS FROM APU. ACFT GROUNDED. PERFORMED FIM 24-21 TASK 801, NO FAULTS WERE LOGGED. RESTARTED APU. APU START WITH EXTERNAL POWER AND SWITCH CHECKED NORMAL IAW AMM 24-21-00.
- Difficulty date
- August 21, 2016
- Submitted
- August 23, 2016
- Operation
- Air carrier
- Aircraft
- N495AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41728
- Aircraft time
- 1,947 hours, 631 cycles
- System (JASC)
- 2420 · AC Generation System
- Part
- Warning Light
- Condition
- False Activation
- Location
- Electrical
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.