# SDR 97ZZZX4147

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N6621A](https://openairdocs.org/aircraft/N6621A), registered now
- Make and model: Cessna T210N
- Registry model: [Cessna T210N](https://openairdocs.org/model/cessna-t210n) (OpenAirDocs)
- Aircraft serial: 21063559
- System (JASC): [2437 · DC Indicating System](https://openairdocs.org/jasc/2437)
- Part: Ammeter
- Part number: C6695600105
- Condition: Mismarked
- Location: Inst Panel
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX4147

## Discrepancy

WHILE REPLACING BAD AMMETER, NOTICED THE MARKINGS FOR PLUS AND MINUS WERE OPPOSITE OF THE ORIGINAL GAUGE.  THE AMMETER WAS BENCH CHECKED FOR PROPER DEFLECTION AND IT WAS FOUND MIS-MARKED.  WHEN INSTALLED AND HOOKED UP AS THE ORIGINAL GAUGE WAS, OPS CHECK NORMAL.

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