# SDR GLBA20090409A

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 2009
- Submitted: April 13, 2009
- Operation: Air carrier
- Aircraft: [N245GL](https://openairdocs.org/aircraft/N245GL), registered now
- Make and model: Beech 1900D
- Registry model: [Beech 1900D](https://openairdocs.org/model/beech-1900d) (OpenAirDocs)
- Aircraft serial: UE245
- Aircraft time: 26,903 hours, 33,140 cycles
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Transducer
- Condition: Malfunctioned
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GLBA20090409A

## Discrepancy

AIR RETURN - PILOTS REPORTED A LIGHTNING STIKE ON THE NOSE WHICH RESULTED IN A RUNWAWAY RUDDER BOOST SITUATION IF THE RUDDER BOOST SWITCH WAS "ON". RUDDER BOOST ACTIVATES AND STAYED ACTIVATED. MAINTENANCE PLACED THE ISSUE ON MEL 22-2 CAT.C C/N 34624 AT THE TIME. AIRFRAME LIGHTNING STRIKE INSPECTION WAS COMPLIED WITH PER MM 05-50-00 AND PROPELLER INSPECTION PER PROP MM 61-01-02. NO DAMAGE WAS FOUND. MAINTENANCE SUBSEQUENTLY REMOVED AND REPLACED THE RT TRANSDUCER IAW MM 27-21-00. OPERATIONAL CHECKS WERE GOOD.

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