Airworthiness directives › 2021-23-16
AD 2021-23-16 Airworthiness Directives; Pacific Aerospace Limited Airplanes
Makes named: pacific aerospace. Models named: 750XL. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Pacific Aerospace Limited Model 750XL airplanes, serial numbers 101 through 215 inclusive, 220, 8001, and 8002, certificated in any category, that are fitted with an air conditioner and/or a standby alternator, including airplanes configured for the installation of an air conditioner and/or a standby alternator, as shown in Figure 1 of Part A in Pacific Aerospace Mandatory Service Bulletin PACSB/XL/113, Issue 2, dated March 8, 2019 (MSB PACSB/XL/113, Issue 2).
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 50 hours time-in-service (TIS) or at the next annual inspection after the effective date of this AD, whichever occurs later, inspect the engine fuel feed line hoses and the electrical wiring for chafing and damage in accordance with the Accomplishment Instructions, Part A steps (3) and (4), in MSB PACSB/XL/113, Issue 2. (1) If there is any chafing or damage that penetrates the orange outer covering of the fuel line fire sleeve or if there is any chafed or damaged electrical wiring, before further flight, inspect the fuel hose for chafing, replace any chafed fire sleeve or fuel hose, and reroute all fuel lines in accordance with the Accomplishment Instructions, Part B, in MSB PACSB/XL/113, Issue 2. (2) If there are no chafed or damaged engine fuel feed line hoses and no chafed or damaged electrical wiring, within 50 hours TIS or at the next annual inspection, whichever occurs later, reroute all fuel lines in accordance with the Accomplishment Instructions, Part B, in MSB PACSB/XL/113, Issue 2.
Unsafe condition
This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as chafing of the engine fuel feed line hoses. The FAA is issuing this AD to prevent chafing of the engine fuel feed line hoses with electrical wiring and the ignition exciter located forward of the engine firewall. The unsafe condition, if not addressed, could result in a fuel leak and fire.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1