# SDR CALA2018010100002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 1, 2018
- Submitted: January 2, 2018
- Operation: Air carrier
- Aircraft: [N816UA](https://openairdocs.org/aircraft/N816UA), registered now
- Make and model: Airbus A319-131
- Registry model: [Airbus A319-131](https://openairdocs.org/model/airbus-industrie-a319-131) (OpenAirDocs)
- Aircraft serial: 871
- Aircraft time: 62,474 hours, 25,933 cycles
- System (JASC): [3234 · Landing Gear Selector](https://openairdocs.org/jasc/3234)
- Part: Selector Valve
- Part number: 114079017
- Part serial: 3598
- Condition: Faulty
- Location: Landing Gear
- Part time: 62,473 hours, 25,933 cycles
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2018010100002

## Discrepancy

GEAR WOULD NOT EXTEND NORMALLY AFTER CYCLING HANDLE 2 TIMES. HAD TO PERFORM MANUAL EXTENSION.  EMERGENCY DECLARED. REMOVED AND REPLACED LDG SELECTOR VALVE REF AMM 32-31-12, EXTENSION & RETRACTION TESTS CHECK NORMAL. REMOVED AND REPLACED LDG SAFETY VALVE REF AMM 32-31-17, REQUIRES OPS CK TASK 32-31-00-710-005-A01. EXTENSION AND RETRACTION OF LANDING GEAR TEST. E AND L/G SAFETY VALVE PER AMM 32-31-12 AND 32-31-17. VERIFIED VERIFIED P/NS WITH IPC, VERIFIED INSTALLATION OF L/G SELECT VALVE REF ECRA 3231-01172 FOR LDG GEAR SELECTOR VALVE INSTALL. PERFORMED TASK 32-31-00-710-005-A01 , ALL OPS CKS NORMAL. ALL OPS CKS FOR NORMAL GEAR RETRACTION & EXTENSION NORMAL REF AMM TASK 32-31-00-720-002-A FUNCTIONAL TEST OF THE NORMAL EXTENSION AND RETRACTION VERIFIED GEAR EXTENSION AND RETRACTION, ALL OPS AND FUNCTIONAL C CHECKS PER AMM 32-31-00-710-005-A01 ALL OPS CKS FOR NORMAL GEAR RETRACTION & EXTENSION NORMAL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.