# SDR YENA2023041400399

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 11, 2023
- Submitted: April 14, 2023
- Operation: Air carrier
- Aircraft: [N789JB](https://openairdocs.org/aircraft/N789JB), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 04612
- Aircraft time: 46,140 hours, 15,992 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Lgciu
- Part number: 664700500A4D
- Part serial: 3286
- Condition: Failed
- Location: 5ga1
- Part time: 71,197 hours, 25,772 cycles
- Stage of operation: TO
- How discovered: V
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2023041400399

## Discrepancy

FLT#1005, JFK- PDX. (AIRCRAFT PERFORMED AN AIR TURN BACK TO JFK) ' UPON TAKEOFF L/G GEAR NOT UPLOCKED CAUTION MESSAGE APPEARED; REF L/P 3720661, ITEM 2 (GROUND CONFIG AFTER FLT CONFIG W/ ELECT PWR C/W IAW AMM TASK 32-00-00-860-002A, AMM TASK 34-11-00-440-801 AND AMM TASK 21-26-00-860-001.), 3720662, ITEM 1 (REMOVED AND REPLACED NLG PROX SW 25GA IAW AMM 32-31-73. OPS TEST GOOD) & 2 (REMOVED AND REPLACED #1 LGCIU IAW AMM 32-31-71. BITE TEST DONE IAW AMM 32-69-00. NO DEFECTS NOTED) AND 3720663, ITEM 1 (REMOVED AND REPLACED #2 LGCIU IAW AMM 32-31-71. BITE TEST DONE IAW AMM 32-69-00. NO DEFECTS NOTED.) REPLACED NLG PROX SENSOR 25 GA AND REPLACED LGCIU 1 & 2. ALL OPS CHECK IS GOOD. FUNCTIONAL TEST OF THE NORMAL EXT AND RETRACTION OF L/G C/W. ALL GOOD. A/C OK FOR SERVICE.'

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