# SDR 97UAL900412

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 1, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N7448U
- Make and model: Boeing 727222
- Aircraft serial: 21902
- Engine: Pwa JT8D15
- System (JASC): [2360 · Static Discharge System](https://openairdocs.org/jasc/2360)
- Part: Static Wicks
- Part number: 740001
- Condition: Damaged
- Location: Airframe
- Component: Dayton Grang
- Stage of operation: CR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97UAL900412

## Discrepancy

BOTH NAVIGATION UNITS FAILED SIMULTANEOUSLY AFTER FLYING THROUGH PRECIPITATION.  AFTER 15 TO 20 MINUTES BOTH UNITS, WITHIN 15 SECONDS OF EACH OTHER, BEGAN TO OPERATE NORMALLY.  *S/D*  REPLACED ALL STATIC WICKS PART NUMBERS D/G740007 AND 740001.  NO FURTHER PROBLEMS.

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