AD 96-18-20
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Piaggio Aero Industries S.p.A. | P-180 | Airworthiness Directives; Piaggio Model P-180 Airplanes |
Unsafe Condition
Cracking and subsequent failure of outflow/safety valves in the pressurization system could result in rapid decompression of the airplane.
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Required Actions
Replace the outflow/safety valve in accordance with Allied Signal Aerospace Service Bulletins 103742-21-4059 or 103744-21-4060, dated March 31, 1995, as applicable. Ensure that no person installs non-serviceable valves with specified part and serial numbers.
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Compliance Time
Within 18 months after the effective date of this AD (October 15, 1996)
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Affected Aircraft
Piaggio Model P-180 airplanes equipped with Allied Signal outflow/safety valves as specified in Service Bulletins 103742-21-4059 and 103744-21-4060, dated March 31, 1995.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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