The bulletin
Text extracted from the PDF.
SPECIAL
AIRWORTHINESS
INFORMATION
BULLETIN
AIRCRAFT CERTIFICATION SERVICE 800 INDEPENDENCE AVENUE, S.W.
WASHINGTON, DC 20591
U.S. Department of Transportation Federal Aviation Administration
No. ANE-99-22 June 25, 1999
Published by: FAA, AFS-610, P.O. Box 26460, Oklahoma City, OK 73125 SAIB’s are posted on the internet at http://av-info.faa.gov This is issued for informational purposes only and any recommendation for corrective action is not mandatory.
Introduction:
The purpose of the Special Airworthiness Information Bulletin (SAIB) is to alert the owners/operators of Textron Lycoming O-320-H, O-360-E, LO-360-E, TO-360-E, LTO-360-E series engines of the following approval of an alternative method of compliance to the requirements of AD 80-04-03 R2.
The FAA has determined that the anti-w ear additive contained in Aeroshell O il W 100 Plus is the same as Textron Lycoming additive LW-16702 and therefore meets the requi rements of Textron Lyco ming Service Bulletin 446B, 446C, and 446D. Engine oil change to Aeroshell Oil W 100 Pl us is approved by the FAA as an alternative method of compliance to the requirements of AD 80-04-03 R2, paragraph b.1, with the limitations described below.
Background:
The research division of Shell Oil Co mpany has completed a certification program to substantiate the anti-wear characteristics of Aeroshell Oil W 100 Plus. As stated above, th is oil contains an additive th at is identical to Textron Lycoming additive LW-16702, which is required to be adde d to certain O-360 engine models at each 50 hour oil service interval by AD 80-04-03 R2. The FAA has determined that the use of Aeroshell Oil W 100 Plus provides the necessary anti-wear protection at engine start-up and therefore satisfies the intent of the AD.
Recommendations:
The FAA has determined that the anti-w ear additive contained in Aeroshell O il W 100 Plus is the same as Lycoming additive LW-16702 and therefore meets the requirements of Textron Lycoming Serv ice Bulletin 446B, 446C, and 446D. Engine oil change to Aeroshell Oil W 100 Plus is approved as an alternative method of compliance to the requirements of AD 80-04-03 R2, paragraph b.1.
Use of this alternative method of co mpliance is not mandatory, however, if the owner/operator elects to use Aeroshell Oil W 100 Plus when complying with AD 80-04-03 R2, the following limitations are applicable:
• If the owner/operator elects to use Aeroshell Oil W 100 Plus at the 50 hour oil service interval, Aeroshell Oil W 100 Plus is also required for any make-up oil additions performed during the service interval.
• If Aeroshell Oil W 100 Plus is unavailable for make-up, a ma ximum of 2 quarts of an alternative oil can be added between 50 hour oil service intervals.
• If more than 2 quarts of an alternative oil is added dur ing the 50 hour oil service interval, the owner/operator is required to add Textron Lycoming additive LW-16702.
• If the oil service interval is extended beyond 50 hours, the owner/operator is required to add Textron Lycoming additive LW-16702 at 50 hours to maintain compliance with the AD.
Each can of Aeroshell Oil W 100 Plus will be marked with the following statement:
“Engine oil drain and fill with Aeroshell Oil W 100 Plus has been approved by the FAA as an alternative method of compliance to AD 80-04-03 R2, paragraph b.1.”
For Further Information Contact:
Federal Aviation Administration, Mark Rumizen, ANE-110, 12 New England Executive Park, Burlington, MA 01803, Tel: (781) 238-7113, Fax: (781) 238-7199, email: mark.rumizen@faa.gov.