# SDR FDEA201104211566

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2011
- Submitted: April 26, 2011
- Operation: Air carrier
- Aircraft: [N669FE](https://openairdocs.org/aircraft/N669FE), registered now
- Make and model: Airbus A300 F4-605R
- Registry model: [Airbus A300 F4-605R](https://openairdocs.org/model/airbus-industrie-a300-f4-605r) (OpenAirDocs)
- Aircraft serial: 774
- Aircraft time: 21,914 hours, 11,832 cycles
- System (JASC): [3230 · Landing Gear Retraction/Extension System](https://openairdocs.org/jasc/3230)
- Part: Landing Gear
- Condition: Malfunctioned
- Location: Nose
- Stage of operation: AP
- 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/FDEA201104211566

## Discrepancy

LOWERED THE LANDING GEAR ON FINAL AND RECEIVED A DUAL SYSTEM NLG RED "UNLOCK" .  MISSED APPROACH AND COMPLIED WITH ECAM ( AFTER REVEIWING  QRH) TO GRAVITY EXTEND PROCEDURE. AFTER SAME RED "UNLOCK" OCCURRED.   COMMUNICATION WITH MX AND REVERSED GRAVITY EXT. CRANK TO ALLOW SYSTEM 1 AND 2  NORMAL RETRACT AND THEN EXTEND CYCLE TO ATTEMPT NORMAL INDICATION OF DOWN AND LOCKED.  2 CYCLES, STILL RED "UNLOCK" BOTH TIMES VISUAL E/E COMPARTMENT  INSPECT WERE UNLOCKED.  INDICATION RETURNED TO NORMAL DOWN FINISHED REMOVAL OF RETRACT ACTUATOR AND INSTALLED NEW ACTUATOR IAW AMM 32-31-22-04. REMOVED AND REPLACED NLG TELESCOPIC STRUT ASSY PER MOCC.  CYCLED NLG 10 TIMES.  FUNCTION AND LEAK CHECKED GOOD ON BOTH WITH HYDRAULICS.

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