2004-01-13: Vent blower assemblies

2004-01-13 Raytheon Aircraft Company: Amendment 39-13427; Docket No. 2003-CE-16-AD; Supersedes AD 97-22-16, Amendment 39-10187. When Does This AD Become Effective? (a) This AD becomes effective on February 19, 2004. What Other ADs Are Affected by This Action? (b) This AD supersedes AD 97-22-16, Amendment 39-10187 (62 FR 58894, October 31, 1997). What Airplanes Are Affected by This AD? (c) This AD affects the following airplane models and serial numbers that are: (1) certificated in any category; and (2) equipped with vent blower assembly, part number 114-380028- 1, 114-380028-3, 114-380028-5, or 114-380028-7. Model Serial numbers 1900 1900C 1900 (C-12J) 1900D UA-3. UB-1 through UB-74 and UC-1through UC-174. UD-1 through UD-6. UE-1 through UE-427. What Is the Unsafe Condition Presented in This AD? (d) This AD is the result of reports that vent blower assemblies modified in accordance with AD 97-22-16 are still malfunctioning. The actions specified in this AD are intended to prevent smoke from entering the cockpit and cabin due to the current configuration of vent blower assemblies, which could result in the pilot becoming incapacitated or impairing his/her judgment. This condition could lead to the pilot not being able to make critical flight safety decisions and result in loss of control of the airplane. What Must I Do To Address This Problem? (e) To address this problem, you must do the following: Actions Compliance Procedures (1) Check the maintenance records to determine if a part number (P/N) 114-380028-1, 114-380028-3, 114-380028-5, or 114-380028-7 ventilation blower assembly is installed. Within the next 800 hours time-in-service (TIS) after February 19, 2004 (the effective date of this AD), unless already done. Follow Raytheon Aircraft Mandatory Service Bulletin SB 21-3448, Issued: October, 2002. The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7) may perform this check. (2) If, by checking the maintenance records, the owner/ operator can definitely show that a P/N 114-380028- 1, 114-380028-3, 114-380028-5, or 114-380028-7 ventilation blower assembly is not installed, no further action is required by this AD. Make an entry into the aircraft records showing compliance with this portion of the AD in accordance with section 43.9 of the Federal Aviation Regulations (14 CFR 43.9). Prior to further flight after the maintenance records check required in paragraph (e)(1) of this AD. The owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7) may make this entry. (3) If, by checking the maintenance records, the owner/ operator can definitely show that a P/N 114-380028- 1, 114-380028-3, 114-380028-5, or 114-380028-7 ventilation blower assembly is installed, do thefollowing for each P/N:. (i) P/N 114-380028-1: modify following Raytheon Service Bulletin No. 2721, Issued: January, 1997, prior to incorporating Electromechanic Technologies Modification Kit No. P/N 630-203-01 and changing the P/N to 114-380028-11. (ii) P/N 114-380028-3: incorporate Advanced Industries Modification Kit No. P/N BC80A-901-3 and change the P/N to 114-380028-9. (iii) P/N 114-380028-5 with a serial number (S/N) of 2162 or above or with a S/N of 2162 with an A suffix: no modification is required. Change the P/N to 114-380028-11 and make an entry into the aircraft records that shows compliance with this portion of the AD in accordance with section 43.9 of the Federal Aviation Regulations (14 CFR 43.9). (iv) P/N 114-380028-5 with a S/N prior to 2162 without an A suffix: incorporate Electromechanic Technologies Modification Kit No. P/N 630-203-01 and change the P/N to 114-380028-11. (v) P/N 114-380028-7: incorporate Advanced Industries Modification KitNo. P/N BC80A-901-3 and change the P/N to 114-380028-9. Do all modifications prior to further flight after the maintenance records check required in paragraph (e)(1) unless al- ready done. Following Raytheon Aircraft Mandatory Service Bulletin SB 21-3448, Issued: October, 2002, and Raytheon Service Bulletin No. 2721, Issued: January, 1997. (4) If the owner/operator cannot definitely show that a P/ N 114-380028-1, 114-380028-3, 114-380028-5, or 114-380028-7 ventilation blower assembly is installed through the maintenance records check, an appropriately-rated mechanic must do an inspection to de- termine the P/N of the installed ventilation blower assembly and do the applicable modification required in paragraphs (e)(3)(i), (e)(3)(ii), (e)(3)(iii), (e)(3)(iv), and (e)(3)(v) of this AD. Inspect within the next 800 hours TIS after February 19, 2004 (the effective date of this AD). Do all modifications prior to further flight. Follow Raytheon Aircraft Mandatory Service Bulletin SB 21-3448, Issued: October, 2002, and Raytheon Service Bulletin No. 2721, Issued: January, 1997. (5) Do not install any P/N 114-380028-1, 114-380028-3, 114-380028-5, or 114-380028-7 ventilation blower assembly, unless it has been modified as specified in paragraphs (e)(3)(i), (e)(3)(ii), (e)(3)(iii), (e)(3)(iv), and (e)(3)(v) of this AD. As of February 19, 2004 (the effective date of this AD). Follow Raytheon Aircraft Mandatory Service Bulletin SB 21-3448, Issued: October, 2002, and Raytheon Service Bulletin No. 2721, Issued: January, 1997. May I Request an Alternative Method of Compliance? (f) You may request a different method of compliance or a different compliance time for this AD by following the procedures in 14 CFR 39.13. (1) Send your request to the Manager, Wichita Aircraft Certification Office (ACO), FAA. For information on any already approved alternative methods of compliance, contact Dan Withers, Aerospace Engineer, Wichita Aircraft Certification Office, FAA, 1801 Airport Road, Wichita, Kansas 67209; telephone: (316) 946-4196; facsimile: (316) 946-4107. (2) Alternative methods of compliance approved in accordance with AD 97-22-16, which is superseded by this AD, are not approved as alternative methods of compliance with this AD. Does This AD Incorporate Any Material by Reference? (g) You must do the actions required by this AD following the instructions in Raytheon Aircraft Mandatory Service Bulletin SB 21- 3448, Issued: October, 2002, and Raytheon Aircraft Mandatory Service Bulletin No. 2721, Issued: January, 1997. The Director of the Federal Register approved the incorporation by reference of this service bulletin in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. You may get a copy from Raytheon Aircraft Company, 9709 E. Central, Wichita, Kansas 67201-0085; telephone: (800) 429-5372 or (316) 676-3140. You may review copies at FAA, Central Region, Office of the Regional Counsel, 901 Locust, Room 506, Kansas City, Missouri 64106; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC.