# SDR 97ZZZX580

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [National Flight Services Inc, repair station DSCR311D](https://openairdocs.org/faa-repair-station/DSCR311D/national-flight-services-inc.md) (OpenAirDocs)
- Engine: Garrtt TPE33110U
- System (JASC): [7322 · Fuel Control/Reciprocating Engines](https://openairdocs.org/jasc/7322)
- Part: Driveshaft
- Part number: 3598037
- Condition: Worn
- Location: Fcu Input
- Component: Woodward, 89778024
- 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/97ZZZX580

## Discrepancy

FUEL CONTROL DRIVESHAFT WAS FOUND TO BE WORN BEYOND MM LIMITS DURING ENGINE REPAIR.  THE CURRENT FUEL CONTROL PART NUMBER (89770-24) INDICATES C/W EITHER ALLIED SIGNAL SB 73-0227 OR SB 73-0228. THE PRE SB CONTROLS WERE THE SUBJECT OF AD 94-26-07.  C/W THESE BULLETINS HAS, IN THE PAST, SOLVED THE PROBLEM OF EXCESSIVE WEAR TO THESE PARTS; HOWEVER, THIS PART CONTINUES TO SHOW PRE-BULLETIN COMPLIANCE WEAR PATTERNS.  THE CONTROL HAS BEEN FORWARDED TO WOODWARD FOR EVALUATION.

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