What was found
CABIN RED PSI PSI LIGHTS FLASH ON DOORS, CABIN SHOWS 0 PSI. CORRECTIVE ACTION: R & R BOTH DIFFERENTIAL PRESSURE SWITCHES (301MS, 302MS), REF A350 A 52-71. PERFORMED BITE TEST OF BOTH DSCS REF A350 A52-71. BOTH PASS, CHECKS GOOD.
- Difficulty date
- January 16, 2021
- Submitted
- January 19, 2021
- Operation
- Air carrier
- Aircraft
- N504DN
- Make and model
- Airbus A350941
- Aircraft serial
- 0160
- Aircraft time
- 13,719 hours, 1,243 cycles
- System (JASC)
- 5270 · Door Warning System
- Part
- Pressure Switch
- Condition
- Malfunctioned
- Location
- Cabin Doors
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.