# SDR 98ZZZX1383

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N138BA](https://openairdocs.org/aircraft/N138BA), registered now
- Make and model: Beech 65-B80
- Registry model: [Beech 65-B80](https://openairdocs.org/model/beech-65-b80) (OpenAirDocs)
- Aircraft serial: LD361
- System (JASC): [3710 · Vacuum Distribution System](https://openairdocs.org/jasc/3710)
- Part: Adapter
- Part number: LW12540
- Condition: Cracked
- Location: Air Pump
- Part time: 763 hours
- Component: Aro, A505CDD
- 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/98ZZZX1383

## Discrepancy

WHILE INVESTIGATING AN OIL LEAK ON THE RT ENGINE, DID A DYE PENETRANT INSPECTION OF THE AIR PUMP ADAPTER, AND FOUND IT CRACKED IN THE AREA OF THE FLANGE THAT MATES WITH THE ENGINE ACCESSORY CASE.  SUBMITTER STATED THEY FIND THIS A COMMON DEFECT IN FLEET OF 17 QUEEN AIR WITH AT LEAST 8 OCCURRENCES A YEAR USUALLY AROUND THE AREA OF THE ATTACHMENT POINT HOLES OF THE FLANGE.

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