# SDR 97ZZZX1823

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N2FOR
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Engine: Cont TSIO520VB
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Crankcase
- Condition: Cracked
- Location: Alternator Mt
- Stage of operation: IN
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX1823

## Discrepancy

OIL LEAK.  FOUND RIGHT CRANKCASE CRACKED IN THE MIDDLE OF THE REAR MOUNTING FLANGE OF THE ALTERNATOR.  CRACK EXTENDED TOWARDS THE NR 4 MAIN BEARING 45MM (1.75 INCH).  LOOKING FROM THE OUTSIDE, THE CRACK ALSO EXTENDS TOWARDS THE BACK 25MM (1 INCH) DIRECTLY UNDER THE 7TH STUD BOSS.  TMC REMAN:  2771.0.

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