What was found
L1 DOOR NOT SHOWING CLOSED AND LATCHED ON EXTERIOR DOOR SYNOPTIC WHEN L1 DOOR CLOSED FOUND L-1 DOOR CLOSE SWITCH NG.REPLACED L-1 DDOR CLOSE SWITCH PER AMM 52-71-01.NOW L-1 DOOR INDICATION BACK TO NORMAL.
- Difficulty date
- October 1, 2026
- Submitted
- October 12, 2026
- Operation
- Air carrier
- Aircraft
- N578UP
- Make and model
- Boeing 74745E
- Aircraft serial
- 27154
- Aircraft time
- 128,183 hours, 21,545 cycles
- System (JASC)
- 5270 · Door Warning System
- Part
- Warning Message
- Part serial
- NA
- Condition
- Illuminated
- Location
- L1 Door
- Component
- Door
- Component part number
- ML1327
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.