# SDR CALA2015052200421

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 22, 2015
- Submitted: May 22, 2015
- Operation: Air carrier
- Aircraft: [N27015](https://openairdocs.org/aircraft/N27015), registered now
- Make and model: Boeing 777224
- Aircraft serial: 28678
- Aircraft time: 75,877 hours, 7,592 cycles
- System (JASC): [5280 · Landing Gear Doors](https://openairdocs.org/jasc/5280)
- Part: Door
- Condition: Vibration
- Location: Nlg
- Stage of operation: CL
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2015052200421

## Discrepancy

UPON GEAR RETRACTION EXTREMELY LOUD VIBRATION & AIR NOISE IN COCKPIT FLOOR & A ZONE GALLEY.  SPEED NEVER ABOVE 250 KNOTS DUMPED 50,000 LBS FUEL & RETURNED.  IAW NR`S 4916081, 4916090, 4916093, 4916086, 4916089, 4916100 & 4916094 ACFT OK FOR SERVICE.  RT AFT NOSE GEAR DOOR REPLACED.

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