What was found
THE AFT CABIN L4 DOOR EPAS BATTERY PACK AMBER LIGHT DID NOT ILLUMINATE DURING TEST. REPLACED THE L4 DOOR OPEN SWITCH IAW AMM 52-11-28. OPS TESTED GOOD IAW AMM 52-11-20.
- Difficulty date
- November 16, 2018
- Submitted
- November 29, 2018
- Operation
- Air carrier
- Aircraft
- N771AN
- Make and model
- Boeing 777223
- Aircraft serial
- 29579
- Aircraft time
- 80,062 hours, 10,226 cycles
- System (JASC)
- 5260 · Entrance Stairs
- Part
- Switch
- Part number
- 624EN338R
- Condition
- Failed
- Location
- L4 Epas
- 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.