Airworthiness directives › 2001-08-24
AD 2001-08-24 Airworthiness Directives; Boeing Model 737 Series Airplanes
Models named: 737 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
All Model 737 series airplanes, certificated in any category.
Compliance
Required as indicated, unless accomplished previously. To prevent ignition of fuel vapors due to the generation of sparks and a potential ignition source inside the center tank caused by metal-to-metal contact during dry fuel pump operation, which could result in a fire or explosion of the fuel tank, accomplish the following: Revision of Airplane Flight Manual (AFM) (a) Within 7 days after the effective date of this AD, revise the Limitations Section of the FAA-approved AFM to include the following information. This may be accomplished by inserting a copy of this AD into the AFM. “For ground operation, center tank fuel pump switches must not be positioned to “ON” unless the center tank fuel quantity exceeds 1,000 pounds (453 kilograms), except when defueling or transferring fuel. Center tank fuel pump switches must be positioned to “OFF” when both center tank fuel pump low pressure lights illuminate. Center tank fuel pumps must not be “ON” unless personnel are available in the flight deck to monitor low pressure lights.” Alternative Methods of Compliance (b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Seattle Aircraft Certification Office (ACO), FAA. Operators shall submit their requests through an appropriate FAA Principal Operations Inspector, who may add comments and then send it to the Manager, Seattle ACO. Note 1: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Seattle ACO. Special Flight Permits (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. Effective Date (d) This amendment becomes effective on May 10, 2001. Issued in Renton, Washington, on April 18, 2001. Donald L. Riggin, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 01-10177 Filed 4-24-01; 8:45 am] BILLING CODE 4910-13-U
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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