# SDR QXEA200700526

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2007
- Submitted: April 11, 2007
- Operation: Air carrier
- Aircraft: [N349PH](https://openairdocs.org/aircraft/N349PH), registered now
- Make and model: Dhav DHC8202
- Aircraft serial: 486
- Aircraft time: 22,363 hours, 32,172 cycles
- System (JASC): [6120 · Propeller Controlling System](https://openairdocs.org/jasc/6120)
- Part: Tscu
- Part number: 30005000056
- Part serial: MM5062
- Condition: Malfunctioned
- Location: Autofeather
- Part time: 180 hours, 267 cycles
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QXEA200700526

## Discrepancy

PDX AUTO FEATHER ARM SWITCH LIGHT DOES NOT EXTINGUISH, LIGHT FLICKERS ON AND OFF EN ROUTE AND EXTINGUISHES IN DESCENT.  REPLACED 6121-K5 RELAY AND NR 1 AND NR 2 TSCU UNITS.  OPERATIONAL CHECK GOOD.  AIRCRAFT RETURNED TO SERVICE.

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