Please find attached a Foreign State of Design Advisory document, endorsed by EASA.
This advisory document is also online at https://ad.easa.europa.eu/ad/CE-18-25 .
Should you have any questions, please contact the Agency by e-mail at
[email protected] or by fax,
No.: +49 221 89990 9515.
Safety Information Section Email:
[email protected]
EASA Website
(Attachment is in Acrobat PDF format)
Postal: Postfach 10 12 53, 50452 Cologne, Germany
An agency of the European Union
This message is intended for the use of the addressee only and may contain information that is privileged and confidential. If you are not the
intended recipient, you are notified that any dissemination of this communication is strictly prohibited. If you have received this
communication in error, please notify us immediately by returning this e-mail. Sender accepts no liability for damage of any kind resulting from
the risks inherent in the electronic transmission of messages. This communication does not constitute any formal commitment on behalf of the
European Aviation Safety Agency.
FAA SPECIAL AIRWORTHINESS
Aviation Safety INFORMATION BULLETIN
SAIB: CE-18-25
SUBJ: Powerplant; Air Intake Date: August 30, 2018
This is information only. Recommendations aren’t mandatory.
Introduction
This Special Airworthiness Information Bulletin (SAIB) is to alert owners, operators, and
maintenance technicians of Piper Aircraft, Inc. (Piper) Model PA-28-140 airplanes with Power
Flow Systems, Inc. Supplemental Type Certificate (STC) SA02168AT kit installed of an
airworthiness concern related to the carburetor throttle control arm bracket impacting the collector
assembly. The interference between the throttle control arm and the collector assembly may prevent
the engine from reaching the maximum power stop on the carburetor.
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
On August 15, 2017, a Piper Model PA-28-l40 airplane with a newly installed Power Flow Systems,
Inc. STC SA02168AT kit experienced a reduction of engine power and consequent crash. During the
accident investigation, it was observed the throttle arm bracket came in contact with the Power Flow
System STC’d exhaust collector heat shield. This interference prevented the throttle control arm from
attaining full travel. Due to this interference, the carburetor throttle arm could not make contact with
the maximum power stop on the carburetor, which resulted in a reduction in engine power.
Recommendations
The FAA recommends that operators of Piper Model PA-28-140 airplanes with a Power Flow
Systems, Inc. STC SA02168AT kit installed do the following:
• Visually inspect (engine power off) the throttle control arm clearance. During the inspection,
put the throttle lever in the full forward position.
• Visually confirm that the throttle control arm bracket is not impacting the collector assembly.
• Verify that the throttle control arm is contacting the maximum power stop on the carburetor in
accordance with applicable airframe rigging procedures.
For Further Information Contact
Todd Jackson, Jr., Aerospace Engineer, Atlanta Aircraft Certification Branch; 107 Charles W. Grant
Parkway, Atlanta, GA 30354; phone: 404-474-5567; fax: 404-474-5606; e-mail:
[email protected].
1
For Related Service Information Contact
Power Flow Systems, Inc., 1575 Aviation Center Parkway, Suite 522, Daytona Beach, FL 32114;
Tel: 1-386-253-8833; e-mail:
[email protected]; website:
https://www.powerflowsystems.com/
2