AD 2018-15-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Pacific Aerospace Limited Airplanes |
Unsafe Condition
airplane sound insulation materials attached to the aft face of the firewall not complying with the applicable burn testing criteria for materials on the cabin side of the firewall.
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Required Actions
Inspect the aft face of the firewall and determine if sound insulation material is installed per the instructions in Pacific Aerospace Mandatory Service Bulletin (MSB) PACSB/XL/095 issue 1, dated 21 December 2017, or later approved revision. If a layer of black foam insulating material is found covering the firewall, then remove the material per the instructions in MSB PACSB/XL/095 before further flight.
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Compliance Time
Within 90 days after August 31, 2018
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Affected Aircraft
Pacific Aerospace Limited Model 750XL airplanes, all serial numbers up to and including 215, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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