Airworthiness Directive · Amendment 39-17328 · Equipment/furnishings
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, as identified in Boeing Special Attention Service Bulletin 737-25-1641, Revision 1, dated August 8, 2011, as revised by Boeing Special Attention Service Bulletin 737-25-1641, Revision 2, dated November 20, 2012.
We are 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 reports from the manufacturer that center overhead stowage (COS) boxes could fall from their supports under forward load levels less than the 9 g forward load requirements as defined by certain regulations. This AD requires modifying COS boxes by installing new brackets, stiffeners, and hardware as needed. We are issuing this AD to prevent detachment of COS boxes at forward load levels less than 9 g during an emergency landing, which would cause injury to passengers and/or crew, and could impede subsequent rapid evacuation.
Within 60 months after the effective date of this AD, modify the COS boxes in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 737-25-1641, Revision 2, dated November 20, 2012.
