Airworthiness directives › 2016-08-18
AD 2016-08-18 Airworthiness Directives; Piper Aircraft, Inc. Airplanes
Makes named: piper. Models named: PA-31-350. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Piper Aircraft, Inc. Model PA-31-350 airplanes, serial numbers 31-5001 through 31-5004, 31-7305005 through 31-8452024, and 31-8253001 through 31-8553002, certificated in any category, that are equipped with the following engines and fuel pump hose assemblies: Table 1 to Paragraph ( c ) of This AD—Applicable Engines and Fuel Pump Hose Assemblies Engine Manufacturer's hose name Manufacturer's part No. (P/N) Hose description LTIO-540-J2B (right wing) Hose Assembly—Fuel Piper 39995-034 Inlet fuel hose to engine fuel pump. TIO-540-J2B (left wing) Hose, Fuel pump to Injector Lycoming LW-12877-6S142 Exit fuel hose from engine fuel pump. LTIO-540-J2BD (right wing) Hose, Fuel pump to Injector Lycoming LW-12877-6S142 Exit fuel hose from engine fuel pump. TIO-540-J2BD (left wing) Hose Assembly—Fuel Piper 39995-034 Inlet fuel hose to engine fuel pump.
Compliance
Comply with this AD within the compliance times specified in paragraphs (g)(1) through (j)(2) of this AD, unless already done.
Required actions
(1) Within the next 60 hours time-in-service (TIS) after June 6, 2016 (the effective date of this AD) or within the next 6 months after June 6, 2016 (the effective date of this AD), whichever occurs first, inspect to determine the clearance between the inlet and exit fuel hose assemblies listed in table 1 to paragraph (c) of this AD, and each turbocharger support assembly, Lycoming P/N LW-18302. There should be a minimum 3/16-inch clearance. Do the inspection following the INSTRUCTIONS section of Piper Aircraft, Inc. Service Bulletin No. 1257A, dated August 4, 2015. (2) Before further flight after the inspection required in paragraph (g)(1) of this AD, if the measured clearance is less than 3/16-inch, make all necessary adjustments to make the clearance a minimum of 3/16-inch between the inlet and exit fuel hose assemblies listed in table 1 to paragraph (c) of this AD and each turbocharger support assembly, Lycoming P/N LW-18302, following the INSTRUCTIONS section of Piper Aircraft, Inc. Service Bulletin No. 1257A, dated August 4, 2015.
Unsafe condition
This AD was prompted by a report of an engine fire caused by a leak in the fuel pump inlet hose. We are issuing this AD to correct the unsafe condition on these products.
Affected ADs
None.
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