# SDR CALA2013120993581

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 8, 2013
- Submitted: December 10, 2013
- Operation: Air carrier
- Aircraft: [N769UA](https://openairdocs.org/aircraft/N769UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26921
- Aircraft time: 74,194 hours, 13,107 cycles
- Engine: Pwa PW4077
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Vibration
- Location: Cabin
- Stage of operation: NR
- 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/CALA2013120993581

## Discrepancy

FLOOR AREA IN ROW 22 - 24 RT SIDE VIBRATES.  TURNED OFF LOWER RECIRCULATING FAN & ACCOMPLISHED VISUAL INSPECTION AT RT AC BAY PACK COMPONENTS INCLUDING ALL SUPPORTS BRACKETS, RAM AIR INLET IAW AMM 21-52-20-401, MT21-UA7 & AT FWD BULK PIT AFT WALL AIR PLENUM, RECIRCULATING FAN & SURROUNDING STRUCTURES, NO DEFECTS NOTED.  CHECKED SEAT ROWS 22 - 24 AT RT SIDE FOR SECURITY AT FLOOR ATTACHMENTS.

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