Aircraft
Certification Service Washington, DC U.S. Department of Transportation Federal Aviation Administration
NE-10-27
April 20, 2010
This is information only. Recommendations
aren’t mandatory.
Introduction
This Special Airworthiness Information Bulletin (SAIB) alerts you,
owners, operators, and certificated repair facilities of potential
problems when an incorrect oil filter is installed on Superior Air
Parts, Inc. (SAP) oil filter adapter, part number (P/N) SL2157, which
can be installed on certain Lycoming Engines reciprocating engines. At
this time, the airworthiness concern is not an unsafe condition that
would warrant airworthiness directive (AD) action under Title 14 of the
Code of Federal Regulations (14 CFR) part 39.
Background
The FAA has received one report of an incorrect oil filter
installed on an SAP oil filter adapter, P/N SL2157. The incorrect oil
filter did not have an internal oil pressure by-pass valve. This caused
oil starvation of the aircraft engine. Currently, only Champion
CH48108-1 or CH48109-1, or Tempest AA48108 or AA48109 oil filters are
eligible for installation on SAP oil filter adapter, P/N SL2157. Only
oil filters with an internal oil pressure by-pass valve can be used
with the SAP oil filter adapter, P/N SL2157.
The SAP oil filter adapter, P/N SL2157, was originally approved for use
on SAP SV-360 engine models listed on Type Certificate Data Sheet
E00001SC. A list of Lycoming Engines reciprocating engine models that
are eligible for having this adapter installed, is in the attached SAP
Service Letter L09-01 A.
Recommendations
If you determine, through either examination of the oil filter
adapter or your records, that an SAP oil filter adapter, P/N SL2157, is
installed on your Lycoming Engines reciprocating engine, only install
eligible oil filters that have an internal oil pressure by-pass valve.
Do not modify SAP oil filter adapter, P/N SL2157, to accept any other
oil filters. Reference attached SAP Service Letter L09-01 A.
For Further Information Contact
Peter W. Hakala, Aerospace Engineer, Special Certification Office,
FAA, 2601 Meacham Blvd., Ft. Worth, TX 76137-4298; phone: (817)
222-5145; fax: (817) 222-5785; e-mail: peter.w.hakala@faa.gov.
For Related Service Information Contact
Carl Johnson, Superior Air Parts, Technical Support, 621 S. Royal
Lane, Coppell, TX 75019; phone: (972) 829-4689; e-mail:
cjohnson@superiorairparts.com.