# SDR WRLA2005144

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2005
- Submitted: October 13, 2005
- Operation: Air carrier
- Aircraft: N274
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48633
- Engine: Pwa PW4462
- System (JASC): [5101 · Aircraft Structures](https://openairdocs.org/jasc/5101)
- Part: Unknown
- Condition: Unknown
- Location: Unknown
- Stage of operation: AP
- How discovered: O
- Nature of condition: G
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/WRLA2005144

## Discrepancy

UPON GEAR DOWN HAD A VIOLENT SHUDDER LIKE ACFT HIT SOMETHING & LOUD NOISE, THEN COULD NOT GET RT MLG DOWN ON PRIMARY OR SECONDARY SYS.  LOST NR 1 TRANSPONDER, INTERMITTENT LOSS OF OTHER SYS:  AUTO FLT, CAC, ETC.  MLG HELD AT LANDING BUT STILL HAVE RED MLG LIGHTS AND ANTISKID FAIL. REMOVED & REPLACED RT MLG RETRACT CYLINDER AND RH MLG DOWN-LOCK CYLINDER PER MM PROCEDURES. ALSO REMOVED & REPLACED BOTH PRIMARY AND SECONDARY SENSORS AND ACCOMPLISHED GEAR SWING IAW MM PROCEDURES. ACCOMPLISHED ERA 05-32-075 NDT INSPECTION ON THE AFFECTED AREA BEFORE DEPARTURE, NO DEFECTS FOUND.

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