What was found
FOUND M5169, M5170 EMER BATTERIES FUNCTIONAL FAIL.(<P>1. IAW AMM 33-51-04-902-001-001 REV 110 REPLACED EMERGENCY LIGHT BATTERIES ASSY (M5169, M5170) AND PERFORMED INSTALLATION TEST, THE RESULT WAS SATISFACTORY.</P>)
- Difficulty date
- July 10, 2024
- Submitted
- July 11, 2024
- Operation
- Air carrier
- Aircraft
- N489MC
- Make and model
- Boeing 747412F
- Aircraft serial
- 26553
- Aircraft time
- 114,651 hours, 20,095 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 20131A
- Part serial
- 49722080907
- Condition
- No Test
- Location
- Emergency Lights
- 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.