# Dassault Service Bulletin F20-789: No revision named

- Rights: © Dassault Aviation. Filed by the FAA in regulations.gov docket FAA-2018-0117; AD 2018-11-10 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [Dassault Service Bulletin F20-789](https://openairdocs.org/service-documents/dassault/f20-789.md)
- Title as filed: SBCS F20-789
- Pages: 1
- PDF: https://openairdocs.org/files/sha256/76/27/762701f186cc903873fdf15613ec4f64408d688a9c774225ceceeb461e2b3f78
- Page: https://openairdocs.org/service-documents/dassault/f20-789/file/762701f186cc

## Text

Each page's text from the PDF; open the PDF at a page with #page=N.

### Page 1

SERVICE BULLETIN COMMERCIAL SUMMARY 
 
 
1/1 
DASSAULT AVIATION 
SERVICE BULLETIN : 
    
F20-789 DATE: December 9, 2014 
ATA CHAPTER: 52 COVERED MOD: None 
TITLE: DOORS – MAIN ENTRY DOOR (MED) – MED CLOSING 
INSPECTION 
EFFECTIVITY: All FAN JET FALCON series, all MYSTERE-FALCON 20 series and 
MYSTERE-FALCON 20 GF aircraft. 
 
REASON: At the end of a flight, in approach at 7000 ft, the MED opened and separated from the 
aircraft. The crew managed to maintain control of the aircraft and landed without 
incident. 
The purpose of this Service Bulletin is to make sure that the MED closes and locks 
correctly as part of normal procedures.  
CRITERIA:  Corrosion Prevention  Cockpit/Operations Improvements 
 Dispatch - Reliability  Cabin Comfort 
 Operational Availability  New Technology 
 Damage Prevention  New Regulations 
 Manufacturer's Suggested   
 
DESCRIPTION: 
 
The operation consists in checking the correct condition and operation of the most 
probable contributors to an unsafe locking of the door. 
RELATED SB’s: None 
COMPLIANCE: 
 
 
Mandatory as per EASA Airworthiness Directive to be released. 
 
LABOR-HRS 
ALLOWANCE: 
4 hours for inspection only. 
 Note :  labor hours concern only the work described in this Service Bulletin and do not include other 
maintenance work that may be performed on this occasion. 
 
MATERIAL INFORMATION: Excluding locally procured material. 
PART NUMBER TO ORDER QTY 2014 UNIT PRICE (US$) REMARKS 
None    
COMMERCIAL PROGRAM: 
 
FALCONCARE COVERAGE: 
 
 
None 
 
None

---
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, except the copies of manufacturers’ service documents, which belong to their rights holders.