# SDR 98ZZZX4496

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 5, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N4437M](https://openairdocs.org/aircraft/N4437M), registered now
- Make and model: Piper PA-12
- Registry model: [Piper PA-12](https://openairdocs.org/model/piper-pa-12) (OpenAirDocs)
- Aircraft serial: 123388
- Engine: Lyc O235C
- System (JASC): [7310 · Engine Fuel Distribution](https://openairdocs.org/jasc/7310)
- Part: Flex Line
- Part number: U70322020
- Condition: Failed
- Location: Fuel System
- 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/98ZZZX4496

## Discrepancy

REPLACED HOSE AT FUEL TANK BECAUSE OF AGB.  REPLACED HOSE WAS MADE UP OF MIL-H-6000, DATED 12-95.  EIGHTEEN MONTHS AFTER INSTALLATION, HOSE BECAME SOFT, DETERIORATED AND FAILED.  SUBMITTER STATED THIS IS SECOND HOSE OF .3750 INCH SIZE TO FAIL IN THIS AREA OR LOCALITY IN 18 MONTHS TO 2 YEARS AFTER INSTALLATION.  THIS AIRCRAFT HAS AUTOGAS S.T.C.  THE OTHER HAS NEVER USED AUTO FUEL.  HOSE IS AVAILABLE FOR FURTHER INVESTIGATION.  MFG P/N IS UNIVAIR NUMBER.

---
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.