What was found
DURING SERVICE CHECK ON EMERGENCY LIGHT, FOUND 75A FORWARD HAD NO ILLUMINATION. REMOVED OVERHEAD PANEL AT 73A, TROUBLESHOT AND FOUND BATTERY BAD. REPLACED POWER SUPPLY IAW AMM 33-51. OPS CHECKED GOOD.
- Difficulty date
- December 21, 2013
- Submitted
- December 22, 2013
- Operation
- Air carrier
- Aircraft
- N663US
- Make and model
- Boeing 747451
- Aircraft serial
- 23818
- Aircraft time
- 102,537 hours, 13,291 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Condition
- Inoperative
- 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.