- Difficulty date
- February 28, 2020
- Submitted
- March 1, 2020
- Operation
- Air carrier
- Make and model
- Airbus A321231
- Aircraft serial
- 6152
- Aircraft time
- 20,050 hours, 7,831 cycles
- Part
- Thermostat
- Part number
- 341F010000
- Part serial
- 10997
- Condition
- Faulty
- Location
- Bleed Air Sys
- Part time
- 25,186 hours, 10,879 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DIVERTED TO PHX ACCOUNT CABIN PRESSURIZATION FLUCTUATING. ENG 1 BLEED FLUCTUATION CAUSING CAB PRESS FLUX. NO EMERGENCY DECLARED. REPLACED ENG 1 THERMOSTAT SOLENOID 10HA1 IAW AMM 36-11-55. REPLACED TEMP CONT. THERMOSTAT IAW AMM 36-11-43. LEAK CHECK GOOD. ALSO SEE NAALA202003019014.