# SDR 97ZZZX3970

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 29, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N169RD
- Make and model: Amtr NIEUPORT12
- Aircraft serial: 005
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Filter
- Condition: Plugged
- Location: Lt Carburetor
- Stage of operation: NR
- Nature of condition: R
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX3970

## Discrepancy

FUEL LINE INADVERTENTLY LEFT OPEN FOR 2 MONTHS DURING OTHER REPAIRS.  LINE ASSEMBLED WITHOUT PROPER INSPECTION.  POST-ACCIDENT INSPECTION REVEALED UNKNOWN CONTAMINATE IN FILTER OF LT CARBURETOR.  RECOMMEND ALWAYS PLUGGING LINES DURING DIS-ASSEMBLY.  ALWAYS PURGE LINES AND CHECK FLOW PRIOR TO ASSEMBLY.  SUSPECT MUD/WASP NEST IN FUEL LINE.

---
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.