# SDR SIMA20230925003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2023
- Submitted: September 28, 2023
- Operation: Air carrier
- Aircraft: N635RW
- Make and model: Emb ERJ 170-100 SE
- Registry model: [EMB ERJ 170-100 SE](https://openairdocs.org/model/embraer-erj-170-100-se) (OpenAirDocs)
- Aircraft serial: 17000056
- Aircraft time: 48,208 hours, 30,507 cycles
- System (JASC): [3600 · Pneumatic System](https://openairdocs.org/jasc/3600)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: CL
- How discovered: V
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20230925003

## Discrepancy

THIS IS A SUPPLEMENTAL AC785(N635RW) HAD A REPEAT ISSUE FIRST EVENT WAS ON SEP 24 FLT 3887 - 2ND EVENT SEP 25 FLT 4073 CLIMBING THRU FL 280 BLEED OVERPRESS , RAN QRH REMAINED ANNUCIATED AFTER DESCENDING TO 16000 MSL.DECLARED EMERGENCY-C/A-PERFORMED WIRING TEST IAW WM 36-11-50 SHEET 1 AND SWPM 20-64-00 FOUND INTERMITTENT GROUND CONNECTION AT RELAY K0507 PIN C2 TO GS0947 INSPECTION FOUND GROUND STUD LOOSE CLEANED AND SECURED GROUND POINT GS0947 IAW AMM 20-13-21 AND PERFORMED WIRING TEST FOUND ALL CONECTION GOOD. INSTALLED NEW RELAY K0507 IAW SWPM 20-32-01.

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