Airworthiness Directive · Amendment 39-21397 · Fuel
The Boeing Company Airplanes
This AD applies to The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes, certificated in any category, line numbers 1 through 1934 inclusive.
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This AD was prompted by a report that the necessary sealant was not applied to the side of body (SOB) slot as a result of a production drawing that provided unclear SOB slot sealant application instructions. This AD requires a general visual inspection for insufficient sealant in the SOB slot, and related investigative and corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.
Within 9 months after the effective date of this AD: Do a general visual inspection for insufficient sealant in the SOB slot, and do all applicable related investigative and corrective actions, in accordance with Boeing Multi Operator Message MOM-MOM-20-0049-01B(R4), dated September 28, 2020. Do all related investigative and corrective actions before further flight, except as provided in paragraph (h) of this AD.
Repair of insufficient sealant as required by paragraph (g) of this AD may be deferred for 10 days provided there is no fuel present in the center tank as specified in the procedures in item 28-02A of the operator's existing FAA-approved minimum equipment list, and there is no fuel contamination in the air distribution mix bay (ADMB).
Although the service information referenced in Boeing Multi Operator Message MOM-MOM-20-0049-01B(R4), dated September 28, 2020, specifies to report inspection findings, this AD does not require any report.
