# SDR UIEA2012021600052

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 16, 2012
- Submitted: February 16, 2012
- Operation: Air carrier
- Aircraft: [N412MC](https://openairdocs.org/aircraft/N412MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 30559
- Aircraft time: 52,964 hours, 7,931 cycles
- System (JASC): [7830 · Engine Thrust Reverser](https://openairdocs.org/jasc/7830)
- Part: Acoustic Liner
- Condition: Damaged
- Location: Thrust Reverser
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2012021600052

## Discrepancy

DURING MX WALKAROUND, FOUND DAMAGE TO NR 2 ENGINE THRUST REVERSER ACOUSTIC MESH AND HONEYCOMB.  DAMAGE IS LOCATED AT THE 5 O'CLOCK POSITION AND HAS DIMENSIONS 3' LENGTH, .3750" WIDTH AND .2500" DEPTH.  REF TO FIG 1 FOR DAMAGE DETAILS.  PERFORMED A TIME LIMITED REPAIR AS DESCRIBED IN PART 1 WORK INSTRUCTIONS.

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