Airworthiness directives › 2017-17-09
AD 2017-17-09 Airworthiness Directives; The Boeing Company Airplanes
Models named: 737-300, -400, -500 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all The Boeing Company Model 737-300, -400, and -500 series airplanes, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 36 months after the effective date of this AD: Install a new door assembly, do a check of the electrical bond, and do all applicable related investigative and corrective actions, in accordance with the Accomplishment Instructions of Boeing Service Bulletin 737-57-1320, dated October 7, 2016, except as required by paragraph (i) of this AD. Do all applicable related investigative and corrective actions before further flight.
Unsafe condition
This AD was prompted by a manufacturer's review that showed that the fuel tank access door at wing buttock line 191.00 did not have an engineered ground path with the mating wing structure. We are issuing this AD to prevent an ungrounded path that could result in an increased risk of ignition and subsequent fuel tank explosion in the event of a lightning strike.
Affected ADs
None.
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