# SDR 98ZZZX1977

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 20, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N171MU
- Make and model: Bolkms BK117A4
- Aircraft serial: 7138
- System (JASC): [3453 · Long-Range Navigation (LORAN) System](https://openairdocs.org/jasc/3453)
- Part: Loran
- Part number: 066040310111
- Condition: Defective
- Location: Cockpit
- Part time: 3,351 hours
- 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/98ZZZX1977

## Discrepancy

LORAN LEFT LARGE CONTROL KNOB BINDS AFTER LONG USE AND SMALL LEFT KNOB FALLS OUT.  REMOVED AND REPLACED.

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