Airworthiness Directive · Amendment 39-15730 · Boeing Model 727-200 and 727-200F Series Airplanes; 737-200, 737-200C, 737-300, and 737-400 Series Airplanes; 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747SR, and 747SP Series Airplanes; 757-200, 757-200CB, and 757-200PF Series Airplanes; and 767-200 and 767-300 Series Airplanes
Boeing Model 727-200 and 727-200F Series Airplanes; 737-200, 737-200C, 737-300, and 737-400 Series Airplanes; 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747SR, and 747SP Series Airplanes; 757-200, 757-200CB, and 757-200PF Series Airplanes; and 767-200 and 767-300 Series Airplanes
This AD applies to Boeing airplanes, certificated in any category, specified in paragraphs (c)(1) and (c)(2) of this AD.
(1) Boeing airplanes listed in Table 1 of this AD, having an original standard Airworthiness Certificate or original Export Certificate of Airworthiness issued between July 1981 and December 1988 inclusive.
| Model |
| 727-200 and 727-200F series airplanes. |
| 737-200, 737-200C, 737-300, and 737-400 series airplanes. |
| 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747SR, and 747SP series airplanes. |
| 757-200, 757-200CB, and 757-200PF series airplanes. |
| 767-200 and 767-300 series airplanes. |
(2) Boeing Model 747-400 series airplanes, serial numbers 23719, 23720, 23814, 23816, 23817, 23818, 23819, 23820, 23999, 24061, and 24062.
We are adopting a new airworthiness directive (AD) for certain Boeing transport category airplanes. This AD requires replacing any insulation blanket constructed of polyethyleneteraphthalate (PET) film, ORCON Orcofilm[reg] AN-26 (hereafter "AN-26"), with a new insulation blanket. This AD results from reports of in-flight and ground fires on certain airplanes manufactured with insulation blankets covered with AN-26, which may contribute to the spread of a fire when ignition occurs from sources such as electrical arcing or sparking. We are issuing this AD to ensure that insulation blankets constructed of AN-26 are removed from the fuselage. Such insulation blankets could ignite and propagate a fire that is the result of electrical arcing or sparking.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Except as provided in paragraph (g) of this AD, within 96 months after the effective date of this AD, do the actions specified in paragraph (f)(1) or (f)(2) of this AD.
(1) Remove all insulation blankets from the pressurized areas of the fuselage and install new insulation blankets using a method approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA. The new insulation blankets must comply with 14 Code of Federal Regulations (CFR) 25.856(a). The areas where the affected insulation blankets are installed include, but are not limited to, the following areas:
(i) Crown area of the airplane;
(ii) Areas behind flight deck panels and circuit breaker panels;
(iii) Areas behind sidewalls, lavatories, closets, and galleys;
(iv) Cargo compartment areas;
(v) Air ducting;
(vi) Waste and water tubing; and
(vii) Areas attached to the underside of floor panels.
(2) Remove the existing fuselage insulation blankets and install new insulation blankets, in accordance with the Accomplishment Instructions of the applicable service bulletin specified in Table 2 of this AD.
| Boeing Special Attention Service Bulletin— | Dated— | For model— |
|---|---|---|
| (i) 727-25-0300 | April 30, 2008 | 727-200 and -200F series airplanes. |
| (ii) 737-25-1572 | April 30, 2008 | 737-200, 737-200C, 737-300, and 737-400 series airplanes. |
| (iii) 747-25-3429 | April 30, 2008 | 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747SP, and 747SR series airplanes. |
| (iv) 757-25-0295 | April 30, 2008 | 757-200, 757-200CB, and 757-200PF series airplanes. |
| (v) 767-25-0411 | April 30, 2008 | 767-200 and 767-300 series airplanes. |
The actions described in paragraph (f) are not required for any insulation blanket that is determined not to be constructed of AN-26, using an identification method approved by the Manager, Seattle Aircraft Certification Office (ACO), or in accordance with Appendix A of the applicable service bulletin specified in Table 2 of this AD.
Note 1: Insulation material that is part-marked with a date of manufacture indicating that it was manufactured before July 1981 or after December 1988 is not constructed of AN-26.
As of the effective date of this AD, no person may install any insulation blanket constructed of AN-26 as a replacement unless it has been modified to comply with 14 CFR 25.856(a), in accordance with a method approved by the Manager, Seattle ACO.
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.
