# SDR 99ZZZX1825

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 24, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N200QS](https://openairdocs.org/aircraft/N200QS), registered now
- Make and model: Beech B200
- Registry model: [Beech B200](https://openairdocs.org/model/beech-b200) (OpenAirDocs)
- Aircraft serial: BB1130
- System (JASC): [3432 · Glide Slope System](https://openairdocs.org/jasc/3432)
- Part: Relay
- Part number: M390166209L
- Condition: Contaminated
- Location: E/E Bay
- Part time: 5,576 hours
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX1825

## Discrepancy

COPILOT'S GLIDESLOPE REMAINS CENTERED AT ALL ITEMS ON ILS APPROACH.  NO FLAG ON HSI.  TROUBLESHOOTING REVEALED THAT PINS ON RELAY M39016/6-209L OR CONTACTS ON PRINTED CIRCUIT BOARD WERE DIRTY OR OXIDATED.  RELAY K1 IN RELAY BOX PL-A.  SAME RELAY FOR GLIDESLOPE UP/DOWN.  ALSO, PULLS FLAG.  SUBMITTER RECOMMENDED VISUAL INSPECTION OF PCB AND RELAYS ON ANNUAL BASIS.

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