The bulletin
Text extracted from the PDF.
SPECIAL AIRWORTHINESS
INFORMATION BULLETIN
Aircraft Certification Service Washington, DC
U.S. Department of Transportation Federal Aviation Administration
NE-06-38 April 7, 2006 http://www.faa.gov/aircraft/safety/alerts/SAIB This is information only. Recommendations aren’t mandatory.
Introduction
This Special Airworthiness Information Bulletin advises you, owners and operators of Aerospatiale (Aeritalia and Societe Nationale Industrielle Aerospatiale) Model ATR42-200, -300, -320, -500 and ATR72-101, -102, -201, -202, -211, -212, -212A series airplanes incorporating FAA Supplemental Type Certificate (STC) numbers ST01310NY or ST01280NY, of reports from the aircraft Flight Data Recorder (FDR) of higher-than-expected levels of incorrect aileron surface position data. In addition, the FDR from an aircraft involved in an accident recorded invalid data on the left aileron surface position. Delta Engineering is in the process of redesigning the sensors.
Background
While Delta Engineering is redesigning the sensors, they have issued Service Alert No.
120105-01A, dated March 1, 2006, to mitigate the risk of invalid FDR parameters. They reduced the inspection interval from twelve
(12) months to six (6) months in the Instructions for Continued Airworthiness document, numbers 0701-04680-2009 and 0701-04812-2030. We have determined that an Airworthiness Directive (AD) isn’t warranted.
Recommendations
• We strongly recommend that you review Delta Engineering’s Service Alert 120105-01A, dated March 1, 2006.
• We also recommend that you follow the Instructions for Continued Airworthiness, document numbers 0701-04680-2009, Revision E, dated June 24, 2004 for STC ST01280NY and 0701-04812-2030, Revision E, dated July 25, 2005 for STC ST01310NY, which reduce the inspection interval from 12 months to 6 months.
For Further Information Contact
Ram Rambrich, Aerospace Engineer, FAA NYACO, ANE-172, 1600 Stewart Ave, Suite 410, Westbury, N.Y. 11590; phone: (516) 228- 7307; fax: (516) 794-5531; email:
balram.rambrich@faa.gov
For Service Information Contact
Delta Engineering, 13 DRBA Way, New Castle, DE 19720; phone: (302) 325-9320; fax:
(302) 325-9420.
Registered aircraft it may concern
Registry models matched by Aerospatiale ATR42-200, ATR42-300, ATR42-320 and 8 more, the same way as ADs, with the most registered aircraft first.