# SDR 99ZZZX90

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 30, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N421KP
- Make and model: Cessna 421B
- Registry model: [Cessna 421B](https://openairdocs.org/model/cessna-421b) (OpenAirDocs)
- Aircraft serial: 421B0142
- Engine: Cont GTSIO520H
- System (JASC): [7314 · Engine Fuel Pump](https://openairdocs.org/jasc/7314)
- Part: Pump
- Part number: 476411
- Condition: Inoperative
- Location: Fuel System
- Part time: 349 hours
- Component: Facet
- 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/99ZZZX90

## Discrepancy

FUEL RE-CIRCULATING PUMPS IN LEFT AND RIGHT TIP TANKS INOPERATIVE.  BOTH PUMPS REPLACED WITHIN THE LAST 15 MONTHS.

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