AD 88-20-02

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AD Number:
88-20-02
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 (MD-80) Series Airplanes and Model MD-88 Airplanes
Subject:
Manifold Clamps
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/11/1988
Make:
The Boeing Company
Model:
DC-9-81 (MD-81) | DC-9-82 (MD-82) | DC-9-83 (MD-83) | DC-9-87 (MD-87) | MD-88
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Superseded AD: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Superseded By: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: 88-20-02
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-6025

AD NUMBER:   88-20-02

SUBJECT HEADING:   Airworthiness Directives; MCDONNELL DOUGLAS DC-9-80 (MD-80) Series Airplanes and Model MD-88 Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective October 11, 1988.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
88-20-02 MCDONNELL DOUGLAS: Amendment 39-6025. Applies to Model DC-9-80 (MD-80) series airplanes and Model MD-88 airplanes, certificated in any category, equipped with Janitrol P/N 14J93-350 clamps manufactured after March 1, 1988, including, but not limited to the following airplane factory serial numbers:

49462	49584	49658
49463	49585	49661
49464	49586	49667
49509	49592	49668
49559	49593	49669
49560	49604	49670
49561	49605	49671
49562	49617	49672
49563	49619	49701
49564	49620	49702
49565	49621	49703
49566	49622	49704
49571	49623	49705
49572	49624	49707
49573	49625	49711
49577	49644	49712
49578	49645	49389
49579	49646	
49583	49657	

NOTE: Additionally, airplanes other than those listed above are affected by this AD, if suspect clamps were installed on engine eighth or thirteenth stage pneumatic manifold end caps as replacement parts.

Compliance required as indicated, unless previously accomplished.

To prevent uncontained separation of engine pneumatic manifold end caps, accomplish the following:

A. Within 25 days after the effective date of this AD, inspect both engines' eighth and thirteenth stage pneumatic manifold end cap clamps, Janitrol P/N 14J93-350, for identification markings, and accomplish the following:

NOTE: Refer to McDonnell Douglas DC-9 Master Illustrated Parts Catalog 36-10-00, Figure 1A, Item 105, for locations of clamps.

1. Clamps with the number "5T400" and a date stamp, or the number "89513", appearing next to Janitrol P/N 14J93-350 are acceptable, and no further action is necessary.

2. Clamps with the number "63367" appearing next to Janitrol P/N 14J93-350 must be removed prior to further flight, and replaced with airworthy clamps.

3. Clamps with the number "5T400" appearing next to Janitrol P/N 14J93-350, and without a date stamp, must be removed prior to further flight, and replaced with airworthy clamps.

B. Prior to installation of any eighth or thirteenth stage pneumatic manifold end cap clamp, Janitrol P/N 14J93-350, perform the inspection required by paragraph A., above. Do not install any clamp having the number "63367", or the number "5T400" and no date stamp, appearing next to Janitrol P/N 14J93-350.

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, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector (PMI), who may add any comments and then send it to the Manager, Los Angeles Aircraft Certification Office.

This amendment, 39-6025, becomes effective October 11, 1988.


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