AD 99-12-07 Airworthiness Directives; Raytheon Aircraft Company Model 1900D Airplanes

Makes named: raytheon. Models named: 1900D. Read the applicability below — it usually turns on serial or part numbers too.

Model 1900D airplanes, serial numbers UE-1 through UE-338, certificated in any category. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (d) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.

Required as indicated in the body of this AD, unless already accomplished. To prevent failure of the oxygen mask lanyard pin to automatically pull and initiate oxygen flow during a loss of airplane pressurization while in-flight, which could result in passenger injury if the lanyard pin is not manually pulled in a timely manner, accomplish the following: (a) Within the next 200 hours time-in-service after the effective date of this AD, replace the passenger oxygen container and mask assembly, part number 129-384005-3 (or FAA-approved equivalent part number), with an improved design passenger oxygen container and mask assembly, part number 129-384005-5 (or FAA- approved equivalent part number). Accomplish this replacement by incorporating Puritan-Bennett Kit No. 280041-00: Lanyard Retrofit Drop Out Box, which contains all the necessary parts and instructions. This kit is referenced in Raytheon Mandatory Service Bulletin SB 35-3233, Issued: December, 1998. (b) As of the effective date of this AD, no person may install, on any affected airplane, a passenger oxygen container and mask assembly that is not of an improved design, [[Page 31493]] part number 129-384005-5 (or FAA-approved equivalent part number). (c) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. (d) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Wichita Aircraft Certification Office (ACO), 1801 Airport Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209. The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Wichita ACO. Note 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Wichita ACO. (e) The replacements required by this AD shall be done in accordance with Puritan-Bennett Kit No. 280041-00: Lanyard Retrofit Drop Out Box, Revision A01, dated October 21, 1998, as referenced in Raytheon Mandatory Service Bulletin SB 35-3233, Issued: December, 1998. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from the Raytheon Aircraft Corporation, P.O. Box 85, Wichita, Kansas 67201-0085. Copies may be inspected at the FAA, Central Region, Office of the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri, or at the Office of the Federal Register, 800 North Capitol Street, NW, suite 700, Washington, DC. (f) This amendment becomes effective on July 23, 1999. Issued in Kansas City, Missouri, on June 2, 1999. Marvin R. Nuss, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 99-14536 Filed 6-10-99; 8:45 am] BILLING CODE 4910-13-P