# SDR 99ZZZX612

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 4, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [Alpine Aviation Inc, repair station TIMR032A](https://openairdocs.org/faa-repair-station/TIMR032A/alpine-aviation-inc.md) (OpenAirDocs)
- Aircraft: N99TH
- Make and model: Beech B-99
- Registry model: [Beech B-99](https://openairdocs.org/model/beech-b-99) (OpenAirDocs)
- Aircraft serial: 11155
- System (JASC): [5280 · Landing Gear Doors](https://openairdocs.org/jasc/5280)
- Part: Hinge
- Part number: 11581006012
- Condition: Worn
- Location: Mlg Door
- 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/99ZZZX612

## Discrepancy

INSPECTION OF GEAR DOOR HINGE REVEALED FORE AND AFT MOVEMENT BETWEEN HINGE HALVES.  THIS ACTION RESULTED IN EXCESS TRAVEL OF DOOR IN THE GEAR DOWN POSITION.  REPLACED HINGE AND 2 COUPLE LINKAGE COMPONENTS.  POSSIBLE CAUSE OF HINGE DISCREPANCY DETERMINED TO BE CAUSED BY A COMBINATION OF NORMAL AGING AND VIBRATION ASSOCIATED WITH THE NORMAL OPERATION OF THE AIRPLANE.

---
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.