Summary
We are adopting a new airworthiness directive (AD) for certain Aerospace Welding Minneapolis, Inc. mufflers, part numbers A1754001-23 and A1754001-25, installed on airplanes. This AD was prompted by occurrences of cracks or broken welds in the connecting weld of the muffler body to muffler cuff that may allow carbon monoxide exhaust fumes into the cockpit heating system. This AD requires an inspection of the muffler for leaking to identify cracks and replacement of the muffler. We are issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2017-0324
Document Number
2018-00479
Type
Rule
Publication Date
January 17, 2018
Effective Date
February 21, 2018
Affected Manufacturer
Aerospace Welding Minneapolis, Inc., Mufflers
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2017-0324
Topics
Official Documents
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