AD 81-10-10 R1

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AD Number:
81-10-10 R1
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series and Military C-9 Series Airplanes
Subject:
Galley Service Doors
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
04/20/1983
Make:
The Boeing Company
Model:
DC-9-11 | DC-9-12 | DC-9-13 | DC-9-14 | DC-9-15 | DC-9-15F | DC-9-21 | DC-9-31 | DC-9-32 | DC-9-32 (...Show more
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Superseded AD: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Superseded By: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: 81-10-10 R1
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4629

AD NUMBER:   81-10-10 R1

SUBJECT HEADING:   Airworthiness Directives; MCDONNELL DOUGLAS DC-9 Series and Military C-9 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective April 20, 1983.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
81-10-10 R1 MCDONNELL DOUGLAS: Amendment 39-4116 as amended by Amendment 39-4629. Applies to all McDonnell Douglas Model DC-9 series and Military C-9 series airplanes, certificated in all categories. Compliance required as prescribed herein. To prevent fatigue cracking and possible structural failure of the forward galley service doors, P/N 5910084 and P/N 5910538, on airplanes with 12,000 or more landings accumulated on and after the effective date of this AD, accomplish the following:

A. Within the next 30 days after the effective date of this amendment, unless accomplished within the last 3,100 landings, perform an operational check of the door, and a visual inspection for general condition of door, pan and seals, door stops, and set screws. If corrective actions are deemed necessary, accomplish rework and/or replacement per operator's approved maintenance program.

NOTE: Removal of seals and liner not required to perform this inspection.

B. In accordance with the schedule below, perform a close visual inspection of the door pan, forward and aft ends of horizontal beams (frames), including the bend radius along the upper and lower flanges, tee fittings and clips, or inspect in accordance with McDonnell Douglas DC-9 Service Bulletins 52-125 dated August 11, 1981, or 52-127 dated January 10, 1983, as applicable.

NOTE: Removal of seals is not required to perform this inspection.

1. Initial visual inspection schedule (unless accomplished within the last 3,100 landings):

Accumulated Landings
(on effective date of this AD)
	
Initial Inspection
(from effective date of this AD)


12,000 - 14,999
	
4,000 landings


15,000 - 19,999
	
2,900 landings


20,000 - 24,999
	
1,800 landings


25,000 and over
	
900 landings


NOTE: If the total number of landings cannot be determined for a particular door, for the purpose of this AD it must be assumed the door has 25,000 or more landings.

2. Repeat the inspections specified in paragraph B.1., above, at intervals not to exceed 4,000 landings from the last inspection until terminating action specified in paragraph C., below, is accomplished.

3. For airplanes with less than 12,000 landings on the effective date of this AD, inspect in accordance with paragraph B., above, before the accumulation of 16,000 landings.

4. If no cracks are found, continue repetitive inspections per paragraph B.2., above, until terminating actions specified in paragraph C.1., below, is accomplished.

5. If cracks are found, install applicable repairs on cracked pan and/or beams and accomplish repetitive inspections per paragraph B.2., above, until terminating action specified in paragraph C.2., below, is accomplished. For Part Numbers 5910084-(***) and 5910538-(***), with cracks which exceed the limits defined in Douglas Service Rework Drawing 5939988 or J060167, respectively, the affected beam(s) must be replaced with new like beam(s) prior to installing preventative repairs.

(NOTE: *** denotes any configuration.)

6. Previous accomplishment of preventative repairs, required by this AD, which are outlined in McDonnell Douglas Service Rework Drawing 5939988, may be considered as equivalent methods for complying with the requirements of this AD.

C. Terminating Action: The following constitutes terminating action for this AD:

1. For aircraft found to be crack free, accomplish the applicable preventative repair per Paragraph 2, Accomplishment Instructions specified in McDonnell Douglas DC-9 Service Bulletins 52-125 dated August 11, 1982, or 52-127 dated January 10, 1983, or later revisions approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

2. For aircraft found to have cracks, accomplish the applicable repairs and inspections and install preventative repairs per paragraph 2, Accomplishment Instructions, specified in McDonnell Douglas DC-9 Service Bulletins 52-125 dated August 11, 1982, or 52-127 dated January 10, 1983, or later revisions approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

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

E. Upon request of the operator, an FAA maintenance inspector, subject to prior approval by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region, may adjust the repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator if the request contains substantiating data to justify the change for that operator.

F. For the purposes of complying with this AD, subject to the acceptance by the assigned FAA Maintenance Inspector, the number of landings may be determined by dividing each airplane's hours time in service by the operator's fleet average time from takeoff to landing.

G. Alternative inspections, repairs, or other actions accomplished on or after the effective date of this AD, which provide an equivalent level of safety, may be used when approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region. to 5 U.S.C. 552(a)(1).

All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to McDonnell Douglas Corporation, 3855 Lakewood Boulevard, Long Beach, California 90846, Attention: Director, Publications and Training, C1-750 (54-60). These documents also may be examined at FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or Los Angeles Aircraft Certification Office, 4344 Donald Douglas Drive, Long Beach, California.

Amendment 39-4116 became effective May 28, 1981.

This Amendment 39-4629 becomes effective April 20, 1983.


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