# SDR 96ZZZX4153

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 1, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N9737S
- Make and model: Beech 58
- Registry model: [Beech 58](https://openairdocs.org/model/beech-58) (OpenAirDocs)
- Aircraft serial: TH671
- System (JASC): [2810 · Fuel Storage](https://openairdocs.org/jasc/2810)
- Part: Fuel Tank
- Part number: 369200152
- Condition: Deteriorated
- Location: Anti-Slosh
- Component: Usrubber
- 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/96ZZZX4153

## Discrepancy

THE SPONGE-LIKE MATERIAL USED IN THIS TANK BEGAN TO DETERIORATE/DISENTEGRATE.  THIS BECAME APPARENT WHEN PILOT BEGAN NOTICING SMALL DARK PARTICLES IN FUEL SAMPLE OF RT INBOARD QUICK DRAIN ON PRE-FLIGHT INSPECTION.  PARTICLE QUANTITY INCREASED AND RAN SAMPLE THROUGH A FILTER AND DETERMINED WHAT PARTICLES WERE.  UPON REMOVAL, FOUND MOST OF SPONGE MATERIAL LOOSE IN TANK.  SUBMITTER FEELS THIS CAME ABOUT AS A RESULT OF AGE ON TANK (24 YEARS) AND 100LL GAS ACTING ON PLASTIC-LIKE SPONGE MATERIAL.

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