AD 90-11-06

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AD Number:
90-11-06
Document Type:
AD Final Rules
Docket Number:
90-NM-77-AD
Subject Heading:
Airworthiness Directives; BOEING Model 747-400 Series Airplanes
Subject:
Fuel Valve Bonding Wire
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
06/06/1990
Make:
The Boeing Company
Model:
747-400 Series
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
Updated RGL applicability to match AD applicability; CAR C-11-185
AIRWORTHINESS DIRECTIVES FINAL RULES: 90-11-06
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   90-NM-77-AD

AMENDMENT:   39-6606

AD NUMBER:   90-11-06

SUBJECT HEADING:   Airworthiness Directives; BOEING Model 747-400 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective June 6, 1990.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
90-11-06 BOEING: Amendment 39-6606. Docket No. 90-NM-77-AD.

Applicability: Model 747-400 series airplanes, equipped with Pratt and Whitney PW4000 series engines or Rolls Royce RB211-524 series engines, identified in Boeing Alert Service Bulletin 747-28A2143, dated April 19, 1990, certificated in any category.

Compliance: Required as indicated, unless previously accomplished. To prevent inability to fully open and close the outboard engine fuel shutoff valve, accomplish the following:

A. Within the next 30 days after the effective date of this AD, replace the outboard engine fuel shutoff valve actuator bonding wire in accordance with Boeing Alert Service Bulletin 747-28A2143, dated April 19, 1990.

B. Within 10 days after the completion of the modification required by paragraph A., above, report all findings of wires longer than six inches to the Manager, Seattle Manufacturing Inspection District Office, 7300 Perimeter Road South, Seattle, Washington 98108. Reports shall include the serial number of the affected airplanes and identify positions of valves found with long straps.

C. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Seattle Aircraft Certification Office, FAA, Northwest Mountain Region.

NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who will either concur or comment, and then send it to the Manager, Seattle Aircraft Certification Office.

D. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.

All persons affected by this directive who have not already received the appropriate service information from the manufacturer may obtain copies upon request to Boeing Commercial Airplanes, P.O. Box 3707, Seattle, Washington 98124. This information may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington.

This amendment (39-6606, AD 90-11-06) becomes effective on June 6, 1990.

FOOTER: