# SDR HEEA0011607

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N134AE](https://openairdocs.org/aircraft/N134AE), registered now
- Make and model: Bolkms BK117B2
- Aircraft serial: 7237
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Gyro
- Part number: 4021541671
- Condition: Malfunctioned
- Location: Cockpit
- 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/HEEA0011607

## Discrepancy

UNIT ROLLED TO THE INVERTED POSITION AND STAYED THERE FOR GROUND RUN AND POWER CHECK.  AIRCRAFT WAS HOVERED AND TEST FLOWN FOR FURTHER OBSERVATION.  GYRO ROLLED UPRIGHT BUT DID NOT REFLECT PROPER ALTITUDE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.