The concern sheet
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U.S. Department of Transportation
Federal Aviation Administration Airworthiness Concern Sheet
Date: August 5, 2019
Reply to:
Name: Boyce Jones Title: ASE - Propulsion Office: Atlanta ACO Department: FAA Street Address: 1701 Columbia Ave City, State, ZIP: Atlanta, GA, 30337 Telephone: (404)474-5535 Email: Boyce.Jones@faa.gov Make: Piper Model / Series: PA-28/-32 all series Serial Numbers: All Serial Numbers
Reason for Airworthiness Concern: Existing AD 2017- 14-04 does not include all series of PA-28 and PA-32 aircraft. In addition, the AD is only focused on oil cooler hoses (and not fuel, hydraulics, turbocharger, etc).
Operators may be using the TSO-C53a Type C hoses for all of these applications without the necessary inspection intervals and/or a service life limit, which could result in hose ruptures or failures and an incident/accident.
Federal Aviation Administration (FAA) Description of Airworthiness Concern Request for Information
The FAA is requesting the following information from owners and operators of PA-28 and PA-32 aircraft:
1) Do you currently have any TSO-C53a Type C hoses installed on your aircraft in the engine compartment (any applications)?
If the answer to the previous question was ‘Yes’:
a) How many hours time-in-service (TIS) and years installed have those hoses currently accrued?
b) Does your aircraft annual or equivalent maintenance requirements include a recurring inspection requirement (with specific inspection criteria and a specific inspection interval) for these hoses? Does the annual or equivalent maintenance requirements include a service life limit based on hours TIS and/or years in-service?
2) Has any owner or operator recently (within the last 5 years) purchased a TSO-C53a Type C hose for use in any application within the engine compartment?
a. Has anyone found that the TSO-C53a Type D hose, the preferred option, are more readily available from part service centers/part retailers than the TSO-C53a Type C hose?
3) Does anyone have any specific concerns specifically related to the use of TSO-C53a Type C hoses in any application, within the engine compartment?
This Airworthiness Concern Sheet (ACS) is intended as a means for FAA Aviation Safety Engineers to coordinate airworthiness concerns with aircraft owners/operators through associations and type clubs. At this time, the FAA has not made a determination on what type of corrective action (if any) should be taken. The resolution of this airworthiness concern could involve Airworthiness Directive (AD) action or a Special Airworthiness Information Bulletin (SAIB), or the FAA could determine that no action is needed at this time. The FAA’s final determination will dep end in part on the information received in response to this ACS.
The FAA endorses dissemination of this technical information to all manufacturers and requests association and type club comments.
Attachments:
__ Service Difficulty Report __ Accident/Incident Data System __ Service Letter / Bulletin __ Special Airworthiness Information Bulletin __ Federal Aviation Administration or National Transportation Safety Board Safety Recommendation X Airworthiness Directive __ Alternate Means of Compliance __ Risk Analysis Transmittal:
__ Federal Aviation Administration X Airplane Owners and Pilots Association X Experimental Aircraft Association X Type Club __ Type Certificate Holder X Other: Aircraft Maintenance Providers Response Requested By:
__ Emergency (10 days) __ Alert (30 days) X Information (90 days)