Airworthiness Directive · Amendment 39-14840 · Raytheon Aircraft Company Models 1900, 1900C, and 1900D Airplanes
Raytheon Aircraft Company Models 1900, 1900C, and 1900D Airplanes
Superseded. A later AD replaced this one: AD 2009-23-03. Comply with the one in force.
This AD applies to the following airplane models and serial numbers that are certificated in any category:
| Models | Serial numbers |
|---|---|
| (1) 1900 | UA-3. |
| (2) 1900C (C-12J) | UB-1 through UB-74, UC-1 through UC-174, and UD-1 through UD-6. |
| (3) 1900D | UE-1 through UE-439. |
The FAA is adopting a new airworthiness directive (AD) for certain Raytheon Aircraft Company (RAC) Models 1900, 1900C, and 1900D airplanes. This AD requires you to repetitively inspect the forward, vertical, and aft flanges of both the left and right wing rear spar lower caps for cracks, repair any cracks found, and report the inspection results to RAC. This AD results from additional fatigue cracks found in this area since inspections were performed to comply with Emergency AD 2006-18-51, which required immediate visual inspections of this area. We are issuing this AD for the purpose of performing a more rigorous inspection requiring cleaning and paint stripping of this section of the wing rear spar to detect and correct cracking in the wing spar lower caps of the affected airplanes before the cracks lead to failure. These wing rear spar cracks may result in wing failure which could result in the wing separating from the airplane with consequent loss of control.
To address this problem, you must do the following, unless already done:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Repetitively inspect both the left and right wing rear spar lower caps for cracks and other damage such as loose or missing fasteners | Initially inspect within 100 hours time-in-service (TIS) or 30 days after December 11, 2006 (the effective date of this AD), whichever occurs first. Repetitively inspect thereafter at intervals not to exceed 200 hours TIS | Follow the procedures in Raytheon Mandatory Service Bulletin 57-3815, dated Issued: October, 2006. |
| (2) If cracks are found repair all cracks by obtaining and incorporating an FAA-approved repair scheme from RAC | Before further flight after any inspection required by paragraph (e)(1) of this AD where cracks are found | Contact RAC at Post Office Box 85, Wichita, Kansas 67201-0085; phone: 316-676-8366; fax: (316) 676-8745; e-mail: tom_peay@rac.ray.com. |
| (3) Report the inspection results to Raytheon Aircraft Company using the instructions and forms in the service bulletin. Complete all sections of the required forms. Reporting requirements have been approved by the Office of Management and Budget (OMB) and assigned OMB control number 2120-0056 | Report the initial inspection within 10 days after the inspection or 10 days after the effective date of this AD, whichever occurs later. Report the repetitive inspections within 30 days after the inspection | Follow the procedures in Raytheon Mandatory Service Bulletin 57-3815, dated Issued: October, 2006. |
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.
