# SDR C77A20130518008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 18, 2013
- Submitted: May 18, 2013
- Operation: Air carrier
- Aircraft: [N604CZ](https://openairdocs.org/aircraft/N604CZ), 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: 17000181
- Aircraft time: 15,209 hours, 8,857 cycles
- System (JASC): [5312 · Fuselage Main, Bulkhead](https://openairdocs.org/jasc/5312)
- Part: Firewall
- Part number: 17050263401
- Condition: Cracked
- Location: Zone 300
- Part time: 15,209 hours, 8,857 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/C77A20130518008

## Discrepancy

CRACK APU RT FIRE WALL PANEL 351BZ, PN 170-50263-401 LOWER FLANGE IS CRACKED 0.215". X=28868.0.  CRACK WAS ROUTED OUT AND NDT PERFORMED VERIFYING NO MORE CRACKING EXISTS IAW SRM II 51-10-03 ETD 2013-170-009233 AND EA E175-54-138, REV IR.

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