What was found
NO EMERGENCY AC NOR DC BUSSES TEST DURING PREFLIGHT ANNUNCIATOR LIGHTS TEST. PERFORMED ANNUCIATOR CONTROL UNIT TEST WITH BAF SWITCH ON IAW MM 33-15-01. OPS CHECKED GOOD. ALL LIGHT ILLUMINATED.
- Difficulty date
- March 11, 2017
- Submitted
- March 15, 2017
- Operation
- Air carrier
- Aircraft
- N257UP
- Make and model
- Doug MD11F
- Aircraft serial
- 48451
- Aircraft time
- 71,180 hours, 14,218 cycles
- System (JASC)
- 2400 · Electrical Power System
- Part
- Buss
- Condition
- No Test
- Location
- Emergency
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.