AD 90-25-14

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AD Number:
90-25-14
Document Type:
AD Final Rules
Docket Number:
90-NM-207-AD
Subject Heading:
Airworthiness Directives; BOEING Model 737-300, -400, and -500 Series Airplanes
Subject:
Wire Bundle Inspection
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
12/21/1990
Make:
The Boeing Company
Model:
737-300 Series | 737-400 Series | 737-500 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Superseded AD: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Superseded By: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:
AIRWORTHINESS DIRECTIVES FINAL RULES: 90-25-14
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   90-NM-207-AD

AMENDMENT:   39-6824

AD NUMBER:   90-25-14

SUBJECT HEADING:   Airworthiness Directives; BOEING Model 737-300, -400, and -500 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective December 21, 1990.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
90-25-14 BOEING: Amendment 39-6824. Docket No. 90-NM-207-AD.

Applicability: Model 737-300, -400, and -500 series airplanes, certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To prevent the occurrence of fire and smoke in the passenger cabin and cockpit, accomplish the following:

A. Within the next 60 days after the effective date of this AD, visually inspect the wire bundles above the overhead ceiling panels between fuselage stations 270 and 300 for damage due to chafing or interference with ceiling panel bracketry and/or latch mechanisms. If wire damage is found, prior to further flight, repair in accordance with Boeing Standard Wiring Practices Document and add Expando PT or equivalent protective sleeving using methods specified in Boeing Service Letter 737-SL-24-58, dated August 3, 1988.

B. Repeat the inspection procedure required by paragraph A. of this AD at intervals not to exceed 120 days.

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 (ACO), FAA, Transport Airplane Directorate.

NOTE: The request should be submitted directly to the Manager, Seattle ACO, and a copy sent to the cognizant FAA Principal Inspector (PI). The PI will then forward comments or concurrence to the Seattle ACO.

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 Airplane Group, P.O. Box 3707, Seattle, Washington 98124. This information may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington 98055-4056.

This amendment (39-6824, AD 90-25-14) becomes effective on December 21, 1990.

FOOTER: