# SDR AALA202107230066

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2021
- Submitted: July 23, 2021
- Operation: Air carrier
- Aircraft: [N817AW](https://openairdocs.org/aircraft/N817AW), registered now
- Make and model: Airbus A319-132
- Registry model: [Airbus A319-132](https://openairdocs.org/model/airbus-a319-132) (OpenAirDocs)
- Aircraft serial: 1373
- Aircraft time: 65,065 hours, 29,269 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Solenoid
- Part number: 341E030000
- Part serial: 01939
- Condition: Defective
- Location: Thermostat
- Part time: 55,233 hours, 25,444 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B, G, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202107230066

## Discrepancy

AIRCRAFT WAS GROUNDED: AT 39,000 FT THE FLIGHT CREW NOTED THE CABIN ALTITUDE STARTING TO CLIMB, SUBSEQUENTLY CREW STARTED A DESCENT. AIRCRAFT LOST PRESSURIZATION AT FL 370, PRESSURE PAGE APPEARED, CREW NOTED BOTH PACKS IN AMBER WITH CABIN PRESSURE RISING FAST. AT APPROXIMATELY 15,000 FT THE CABIN ALTITUDE REACHED THE POINT AT WHICH THE MASK WERE DEPLOYED. DURING THE HIGH-SPEED DESCENT (325 KIAS) THE L2 DOOR BECAME UN-STOWED AND A L2 DOOR ALERT APPEARED ON THE ECAM PAGE, CREW PULLED SPEED BACK AND ALERT WENT AWAY. ABOUT 5 MINUTES AFTER THE DEPLOYMENT OF THE OXYGEN MASK FLIGHT ATTENDANTS REPORTED SMOKE AN FUMES IN THE CABIN. AN EMERGENCY WAS DECLARED, AND THE AIRCRAFT DIVERTED TO MEM WHERE IT LANDED SAFELY WITHOUT FURTHER INCIDENT AND TAXIED TO THE GATE. MAINTENANCE ACCOMPLISHED AN INSPECTION OF THE 2L DOOR AND AN OPERATIONAL CHECK OF THE DOOR INDICATION SYSTEM WITH NO DEFECTS NOTED. MAINTENANCE DETERMINED THAT #1 ENGINE AND #2 ENGINE DID NOT HAVE BLEED AIR DUE TO THERMOSTAT SOLENOIDS 10HA1 (AALA202107123243) AND 10HA2 (AALA202107230066) BEING DEFECTIVE. REPLACED BOTH THERMOSTAT SOLENOIDS AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 36-11-00-710-003. A SATISFACTORY OPERATIONAL CHECK OF THE PRESSURIZATION SYSTEM WAS ACCOMPLISHED PER AMM 36-11-00-740001-A, AMM 21-51-00, AMM 05-53-00-780-003-A01 & AMM 05-53-00-780-002-A01.

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