Airworthiness Directive · Amendment 39-15222 · Boeing Model 727 Airplanes
Boeing Model 727 Airplanes
This AD applies to all Boeing Model 727, 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Boeing Model 727 airplanes. This AD requires doing an initial detailed inspection for cracks in the aft pressure bulkhead web; repairing any discrepancy; and doing repetitive detailed inspections, and doing related investigative actions, if necessary. This AD results from reports of cracking in the aft pressure bulkhead web. We are issuing this AD to detect and correct a cracked pressure bulkhead web, which could result in rapid decompression of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Do an initial detailed inspection for cracks in the aft pressure bulkhead web in accordance with the Accomplishment Instructions of Boeing Special Attention Service Bulletin 727-53-0230, dated January 8, 2007; except as provided by note (a) in Table 1 of paragraph 1.E., “Compliance,” of the service bulletin. Do the inspection at the compliance time identified in paragraph 1.E., “Compliance,” of the service bulletin; except as provided by paragraph (g) of this AD.
(1) If no crack is found, repeat the detailed inspection at the repeat interval identified in paragraph 1.E., “Compliance,” of the service bulletin, except as provided by note (a) in Table 1 of paragraph 1.E., “Compliance,” of the service bulletin.
(2) If any crack is found, before further flight, repair the crack and do the related investigative actions, in accordance with the Accomplishment Instructions of the service bulletin. If any crack, disbonding, or corrosion is found during related investigative actions, before further flight, repair the discrepancy using a method approved in accordance with the procedures specified in paragraph (h) of this AD.
(g) Where Boeing Special Attention Service Bulletin 727-53-0230, dated January 8, 2007, specifies a compliance time after the date of the service bulletin, this AD requires compliance within the specified compliance time after the effective date of this AD.
