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Airworthiness directives › 2018-01-02

AD 2018-01-02 Airworthiness Directives; The Boeing Company Airplanes

2018-02-07
2018-01-03
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Airframe
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Models named: 767-200, -300, -400ER series. Read the applicability below — it usually turns on serial or part numbers too.

Applicability*9

This AD applies to The Boeing Company Model 767-200, -300, and -400ER series airplanes, certificated in any category, as identified in Boeing Alert Service Bulletin 767-38A0073, Revision 3, dated September 8, 2016 (“Boeing Alert Service Bulletin 767-38A0073, R3”).

Compliance

Comply with this AD within the compliance times specified, unless already done.

Required actions

Except as required by paragraph (h) of this AD: At the applicable times specified in paragraph 1.E., “Compliance,” of Boeing Alert Service Bulletin 767-38A0073, R3, do all applicable actions identified as “RC” (required for compliance) in, and in accordance with, the Accomplishment Instructions of Boeing Alert Service Bulletin 767-38A0073, R3. Note 1 to paragraph (g) of this AD: Operators can take optional protective measures to cover or shield their equipment against water spray when performing the Potable Water System Leakage Test, as specified in Boeing Alert Service Bulletin 767-38A0073, R3.

Unsafe condition

This AD was prompted by a report of a malfunction of the engine indication and crew alerting system (EICAS) during flight. We are issuing this AD to prevent an uncontrolled water leak from a defective potable water system coupling, which could cause the main equipment center (MEC) line replaceable units (LRUs) to become wet, resulting in an electrical short and potential loss of several functions essential for safe flight.

Affected ADs

This AD replaces AD 2017-02-03, Amendment 39-18782 (82 FR 10541, February 14, 2017) (“AD 2017-02-03”).

Read the original on the Federal Register →

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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