# SDR 97ZZZX2578

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 1, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N2403B](https://openairdocs.org/aircraft/N2403B), registered now
- Make and model: Univac GC1B
- Aircraft serial: 3703
- Engine: Cont IO360C
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Crankcase
- Condition: Cracked
- Location: Over Nr 2 Cyl
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX2578

## Discrepancy

THIRTY HOURS AFTER REPAIR AND OVERHAUL OF ENGINE, CRANKCASE WAS FOUND TO HAVE A CRACK ON UPPER AREA ABOVE NR 2 CYLINDER (NOT A STUD HOLE CRACK) EXTENDING 1 INCH FORE AND AFT APPROX 1 INCH INBOARD OF CYLINDER MOUNT AREA.  CYLINDERS ALSO FOUND NOT TO HAVE BEEN OVERHAULED.  ENGINE DISASSEMBLED AND FOUND NUMEROUS OTHER DISCREPANCIES.  ( NO COTTER PIN, ETC.).  SB 96-13 NOT SIGNED OFF.  AD 92-04-09 NOT C/W.

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