# SDR HEEA0015487

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N721MB](https://openairdocs.org/aircraft/N721MB), registered now
- Make and model: Bolkms BO105S
- Aircraft serial: S752
- System (JASC): [6240 · Main Rotor Indicating System](https://openairdocs.org/jasc/6240)
- Part: Warning Box
- Part number: KDW021A
- Condition: Failed
- Location: Rotor Rpm
- 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/HEEA0015487

## Discrepancy

RPM AUDIO INDICATIONS NOT FUNCTIONING WHEN NR 1 SPLITS 12 PERCENT.

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