What was found
R4 DOOR EMER LIGHTS INOP (OVHD BILLBOARD)(<P ><SPAN>REMOVED AND REPLACED R4 DOOR EMERGENCY LIGHT BATTERIES PER B747 AMM 33-51-04-G02-001-001. OPS CHECKED GOOD.</SPAN></P> / <P> </P>)
- Difficulty date
- September 11, 2021
- Submitted
- September 15, 2021
- Operation
- Air carrier
- Aircraft
- N480MC
- Make and model
- Boeing 747422
- Aircraft serial
- 28812
- Aircraft time
- 7,810,558 hours, 9,005 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 20181A
- Part serial
- NSN
- Condition
- Unserviceable
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.