Airworthiness directives › 2004-09-07
AD 2004-09-07 Airworthiness Directives; Raytheon Aircraft Company Model 1900, 1900C, 1900C (C-12J), and 1900D Airplanes
Makes named: raytheon. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
(c) This AD affects the following airplane models and serial numbers that: (1) do not have canted bulkhead Kit No. 129-4005-1 incorporated; and (2) are certificated in any category: Model Serial Nos. 1900 UA-1 through UA-3. 1900C UB-1 through UB-74 and UC-1 through UC-174. 1900C (C12J) UD-1 through UD-6. 1900D UE-1 through UE-113.
Required actions
(e) To address this problem, you must do the following: Actions Compliance Procedures (1) Inspect the canted bulkhead at Fuselage Station (FS) 588.10 for fatigue cracks Initially inspect at whichever occurs later, unless already done: Upon the accumulation of 5,000 hours time-in-service (TIS) or within the next 600 hours TIS after June 14, 2004 (the effective date of this AD). If no cracks are found, repetitively inspect thereafter at intervals not to exceed 600 hours TIS until Kit No. 129-4005-1 S is incorporated. When Kit No. 129-4005-1 S is incorporated, no further action is required Follow Raytheon Aircraft Company Mandatory Service Bulletin SB 53-2564, Revision 2, Revised: July, 2003. (2) If cracks exist or are found during any inspection required in paragraph (e)(1) of this AD, Kit No. 129-4005-1 S must be incorporated Before further flight after the inspection in which the cracks are found or known to exist Follow Raytheon Aircraft Company Mandatory Service Bulletin SB 53-2564, Revision 2, Revised: July, 2003. (3) Incorporating Kit No. 129-4005-1 S is the terminating action for the repetitive inspection requirements specified in paragraph (e)(1) of this AD Kit No. 129-4005-1 S can be incorporated at any time. When incorporated, no further action is required Follow Raytheon Aircraft Company Mandatory Service Bulletin SB 53-2564, Revision 2, Revised: July, 2003.
Unsafe condition
(d) This AD is the result of numerous reports of multi-site cracks occurring in the canted bulkhead at FS 588.10. We are issuing this AD to detect and correct cracks in the canted bulkhead, which could result in failure of the bulkhead. Failure of the canted bulkhead could lead to loss of rudder and elevator control, which could result in loss of control of the airplane.
Affected ADs
(b) 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