# SDR AALA201909199022

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2019
- Submitted: September 19, 2019
- Operation: Air carrier
- Aircraft: [N765US](https://openairdocs.org/aircraft/N765US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1371
- Aircraft time: 49,849 hours, 32,031 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Control Unit
- Part number: 664700500A4D
- Part serial: 3127
- Condition: Unreliable
- Location: Landing Gear
- Part time: 45,649 hours, 24,928 cycles
- Stage of operation: CL
- 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/AALA201909199022

## Discrepancy

AIRCRAFT IN BASE VISIT: PILOT REPORTS AFTER TAKE OFF, LANDING GEAR WOULD NOT RETRACT, PUT GEAR HANDLE BACKDOWN FOR 3 GREEN AND LANDED. MAINTENANCE REPLACED LGCIU #1 AND #2 IAW 32-31-71-400-001-A AND REPLACED THE PROXIMITY SENSOR 24GA AND 25GA IAW 32-31-73-400-005-A, PEFORMED BITE TEST OF THE LANDING GEAR IAW AMM 32-69-00-740-001-A AND PERFORMED TEST OF THE NORMAL EXTENSION OF THE LANDING GEAR IAW AMM 32-31-00-720-002-A, TEST IS OK. (SEE SDR # AALA201909189009)

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