# SDR C77A20140507001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2014
- Submitted: May 7, 2014
- Operation: Air carrier
- Aircraft: N752CZ
- Make and model: Emb ERJ 170-100 LR
- Registry model: [EMB ERJ 170-100 LR](https://openairdocs.org/model/embraer-erj-170-100-lr) (OpenAirDocs)
- Aircraft serial: 17000255
- Aircraft time: 13,629 hours, 11,582 cycles
- System (JASC): [5510 · Horizontal Stabilizer Structure](https://openairdocs.org/jasc/5510)
- Part: Hinge Fitting
- Part number: 17062480406
- Condition: Corroded
- Location: Rt Horiz Stab
- Part time: 13,629 hours, 11,582 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/C77A20140507001

## Discrepancy

THIS EO WAS ISSUED TO PROVIDE INSTRUCTIONS TO ACCOMPLISH A PERMANENT REPAIR OF THE CORROSION IN SPHERICAL BEARING BORE OF THE RT HORIZONTAL STABILIZER HINGE FITTING ASSEMBLY FOUND DURING HEAVY CHECK.  R & R OF THE RT HORIZONTAL STABILIZER SPHERICAL HINGE BEARING TO CORRECT THE EXCESS BACKLASH, CORROSION PITTING WAS FOUND IN THE BORE OF THE RT HORIZONTAL STABILIZER HINGE FITTING ASSEMBLIES PN 170-62480-406.  REPAIR PROCEDURES WERE GIVEN TO REMOVE THE CORROSION PITTING BY REAMING THE BORES OVERSIZE & INSTALLING REPAIR BUSHINGS.  THIS REPAIR WAS ACCOMPLISHED ON EO E170-55MR-001 UNDER WO 1432862.

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