AD 92-22-06

92-22-06 MCDONNELL DOUGLAS: Amendment 39-8392. Docket No. 92-NM-160-AD.

Applicability: Model MD-11 airplanes, Model DC-10 series airplanes, and Model KC-10 (military) airplanes; certificated in any category.

Compliance: Required as indicated, unless accomplished previously.

To prevent fuel from being dumped below the minimum allowable level, which could lead to an all-engine-out condition, accomplish the following:

(a) For Model MD-11 airplanes: Within 15 days after the effective date of this AD, accomplish the requirements of paragraphs (a)(1) and (a)(2) of this AD:

(1) Revise the Limitations Section of the FAA-approved Airplane Flight Manual (AFM) to include the following statement. This may be accomplished by inserting a copy of this AD in the AFM.

"FUEL DUMP

Careful monitoring of the fuel system status and consequences is required during dumping operations when electrical malfunctions are present."

(2) Revise the Procedures Section of the FAA-approved AFM to include the following statement. This may be accomplished by inserting a copy of this AD in the AFM.

"FUEL DUMP

DUMP Switch.................................................. On

Note: The fuel dump is designed to automatically terminate at approximately 40,000 lbs. total; however, when the Bus DC 2 OFF alert is displayed, the automatic termination feature will be inoperative."

(b) For Model DC-10 series airplanes and Model KC-10 (military) airplanes: Within 15 days after the effective date of this AD, accomplish the requirements of paragraphs (b)(1) and (b)(2) of this AD:

(1) Revise the Limitations Section of the FAA-approved AFM to include the following statement. This may be accomplished by inserting a copy of this AD in the AFM.

"FUEL DUMP

Careful monitoring of the fuel quantity is required during dumping operations when electrical malfunctions are present."

(2) Revise the Procedures Section of theFAA-approved AFM to include the following statement. This may be accomplished by inserting a copy of this AD in the AFM.

"FUEL QTY Indicators...................................... MONITOR

--- The fuel dump is designed to automatically terminate at approximately 40,000 lbs. total; however, if the DC BUS 2 OFF light is illuminated, the automatic termination feature will be inoperative."

(c) 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, Los Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Los Angeles ACO.

NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Los Angeles ACO.

(d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.

(e) This amendment becomes effective on November 3, 1992.