# SDR 97ZZZX4341

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 19, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N8047L](https://openairdocs.org/aircraft/N8047L), registered now
- Make and model: Hughes TH-55A
- Registry model: [Hughes TH-55A](https://openairdocs.org/model/hughes-th-55a) (OpenAirDocs)
- Aircraft serial: 470699
- System (JASC): [6220 · Main Rotor Head](https://openairdocs.org/jasc/6220)
- Part: Ring
- Part number: 269A1329
- Condition: Misinstalled
- Location: Droop Stop
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX4341

## Discrepancy

DURING AN ANNUAL INSPECTION, DISCOVERED THE DROOP STOP RING WAS PREVIOUSLY INSTALLED INVERTED.  THE  MAIN ROTOR HEAD WAS ASSEMBLED THREE YEARS AND 60 HOURS PRIOR TO THIS INSPECTION.

---
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.