# SDR 98ZZZX3659

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 10, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N486JD](https://openairdocs.org/aircraft/N486JD), registered now
- Make and model: Beech C90A
- Registry model: [Beech C90A](https://openairdocs.org/model/beech-c90a) (OpenAirDocs)
- Aircraft serial: LJ1198
- System (JASC): [2730 · Elevator Control System](https://openairdocs.org/jasc/2730)
- Part: Motor
- Part number: 319A280
- Condition: Missing Parts
- Location: Elevator
- 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/98ZZZX3659

## Discrepancy

TWO AIRCRAFT HAVE 3 OF 4 SCREWS MISSING FROM BASE PLATE.  FOURTH SCREW LOOSE.  RTV HELD BASE PLATE TO THE GEARBOX AND MOTOR ASSY.  RTV INSTALLED PER BEECH SB 2028 REV IV.  THIRD AIRCRAFT HAD TWO SCREWS MISSING FROM BASE PLATE WITH ONE LOOSE AND ONE TIGHT.  THE MOTOR ATTACH SCREWS WERE ALSO LOOSE.  RECOMMEND LOCK TIGHTENING SCREWS OR SOME TYPE OF LOCKING TABS TO SECURE SCREWS.

---
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.