# SDR 98ZZZX1543

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 9, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N26496](https://openairdocs.org/aircraft/N26496), registered now
- Make and model: Cessna 550
- Registry model: [Cessna 550](https://openairdocs.org/model/cessna-550) (OpenAirDocs)
- Aircraft serial: 5500607
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Hinge Assy
- Part number: 551123516
- Condition: Corroded
- Location: Cabin Door
- Part time: 4,137 hours
- 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/98ZZZX1543

## Discrepancy

CABIN DOOR REMOVED TO CHANGE BEARING ASSYS IN DOOR HINGE AND CORROSION DAMAGE WAS DISCOVERED IN HINGE. THIS IS MADE OF MAGNESIUM AND THE CORROSION DAMAGE WOULD NOT BE REMOVED WITHOUT COMPROMISING THE HINGE INTEGRITY.  REASON FOR CORROSION WAS LACK OF LUBRICATION IN THE BEARINGS.  THE LUBRICATION WAS NOT CALLED OUT IN THE INSPECTION GUIDE ALTHOUGH LUBE FOR LANDING GEAR TORQUE LINKS IS.  THIS CAUSED THE LUBE TO BE OVERLOOKED UNTIL IT WAS TOO LATE.

---
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.