# SDR FDEA202604120430

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2026
- Submitted: April 13, 2026
- Operation: Air carrier
- Aircraft: [N722FD](https://openairdocs.org/aircraft/N722FD), registered now
- Make and model: Airbus A300 B4-622R
- Registry model: [Airbus A300 B4-622R](https://openairdocs.org/model/airbus-a300-b4-622r) (OpenAirDocs)
- Aircraft serial: 479
- Aircraft time: 62,201 hours, 33,733 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Bottle
- Part number: C23038404
- Part serial: L493
- Condition: Leaking
- Location: Zone 700
- Stage of operation: LD
- How discovered: O
- Nature of condition: J
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA202604120430

## Discrepancy

ON TAKEOFF OUT OF SNA WHEN WE RETRACTED THE GEAR  THERE WAS A LOUD GRINDING SOUND AND EXCESSIVE  VIBRATIONS. IN MEM ON FINAL WHEN WE SELECTED GEAR  DOWN THERE WERE VIBRATIONS AND THE GEAR DID NOT  EXTEND. THE DOORS SHOWED OPEN. ON THE GO AROUND THE  GEAR CAME DOWN AND INDICATED NORMAL. WE LEFT THE  GEAR DOWN AND RETURNED FOR A NORMAL LANDING.   TROUBLESHOT PER ABOVE TSM AND FOUND NO  FAULT/VIBRATION/GRINDING AFTER SWINGING GEAR  MULTIPLE TIMES. WHILE INSPECTING NOSE GEAR FOUND  NLG ACTUATOR LEAKING. TSM LIST ACTUATOR AS BEING A  CAUSE FOR VIBRATION. REMOVED AND REPLACED NLG  ACTUATING CYLINDER (1250). OPS CHECKS AND LEAK  CHECKS GOOD. A/C OK FOR SERVICE AT THINS TIME.

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