Airworthiness Directive · Amendment 39-14800 · Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes); and Model A310 Series Airplanes
Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes); and Model A310 Series Airplanes
This AD applies to Airbus Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model C4-605R Variant F airplanes (collectively called A300-600 series airplanes); and Model A310 series airplanes; certificated in any category; except those modified in production by Airbus Modification 6788.
The FAA is adopting a new airworthiness directive (AD) for certain Airbus models, as specified above. This AD requires modifying the aft pressure bulkhead for improved corrosion protection and drainage, and related concurrent actions. This AD results from severe corrosion found in the lower rim area of the aft pressure bulkhead during routine maintenance of an airplane. We are issuing this AD to prevent corrosion on the inner rim angle and cleat profile splice of the aft pressure bulkhead, which could result in the loss of airplane structural integrity.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
The term “service bulletin,” as used in this AD, means the Accomplishment Instructions of the following service bulletins listed in Table 1 of this AD, as applicable:
| Models | Requirement | Airbus service bulletin |
|---|---|---|
| A300-600 series airplanes | Paragraph (g) of this AD Paragraph (h) of this AD | A300-53-6017, Revision 02, dated February 25, 2004. A300-53-6006, Revision 3, dated March 24, 1989. |
| A310 series airplanes | Paragraph (g) of this AD Paragraph (h) of this AD | A310-53-2036, Revision 02, dated February 25, 2004. A310-53-2025, Revision 06, dated August 3, 2006. |
Within 60 months after the effective date of this AD, modify the aft pressure bulkhead for improved corrosion protection and drainage by doing all of the actions specified in the Accomplishment Instructions of the applicable service bulletin. Where the service bulletin specifies to use sealant PR-2752 (consumable material list (CML) 09-035), sealant MC-650B (CML 09-056) may be used.
Before or concurrently with accomplishing the modification required by paragraph (g) of this AD, modify the aft pressure bulkhead to improve the fatigue life of the attachment angles at frame (FR) 80/82 by doing all of the actions specified in the Accomplishment Instructions of the applicable service bulletin. Where the service bulletin specifies doing a visual inspection around the entire circumference between FR80/82 and the aft pressure bulkhead for damaged filler, do a general visual inspection.
Note 1: For the purposes of this AD, a general visual inspection is: “A visual examination of an interior or exterior area, installation, or assembly to detect obvious damage, failure, or irregularity. This level of inspection is made from within touching distance unless otherwise specified. A mirror may be necessary to ensure visual access to all surfaces in the inspection area. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight, or droplight and may require removal or opening of access panels or doors. Stands, ladders, or platforms may be required to gain proximity to the area being checked.”
(i) For Model A310 series airplanes, accomplishment of the actions specified in paragraph A.2. of AD 88-06-03, amendment 39-5871 (53 FR 7730, March 10, 1988), is considered acceptable for compliance with the requirements of paragraph (h) of this AD.
Actions done before the effective date of this AD in accordance with Airbus Service Bulletin A310-53-2036, Revision 01, dated October 9, 2003 (for Model A310 series airplanes), are acceptable for compliance with the requirements of paragraph (g) of this AD.
(k) Actions done before the effective date of this AD in accordance with Airbus Service Bulletin A310-53-2025, Revision 5, dated March 24, 1989 (for Model A310 series airplanes), are acceptable for compliance with the requirements of paragraph (h) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
