# SDR R61A20110311

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2011
- Submitted: October 13, 2011
- Operation: Air carrier
- Aircraft: [N112HQ](https://openairdocs.org/aircraft/N112HQ), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000174
- Aircraft time: 11,556 hours, 9,139 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Panel
- Part number: 17091919001
- Condition: Corroded
- Location: Fuselage
- Part time: 11,556 hours, 9,139 cycles
- 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/R61A20110311

## Discrepancy

WHILE AIRCRAFT WAS IN FOR HEAVY CHECK, LEVEL 2 CORROSION WAS FOUND BENEATH FLOOR BOARD 252ERF, SURROUNDING THE MIDDLE FORWARD MOUNT FOR THE AFT GALLEY ON THE FLOOR PLATE AT FRAME 87 TO 88.  MAINTENANCE REMOVED & REPLACED THE SHEAR PANEL IAW EMB 170/175 SRM 51-42-01 & 51-31-00.  REF PO 119412 FOR MATERIAL USED (7475-T761 .063), P/N 170-91919-001.  AIRCRAFT IS STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.

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