AD 67-25-01 R1

AD Final Rules - DRS_67-25-01_R.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
67-25-01 R1
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; BRITISH AIRCRAFT Model BAC 1-11 200 and 400 Series Airplanes
Subject:
Main Undercarriage Down Lock Jacks
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/14/1981
Make:
Airbus SAS
Model:
BAC 1-11 200 Series | BAC 1-11 400 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Superseded AD: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Superseded By: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:
AIRWORTHINESS DIRECTIVES FINAL RULES: 67-25-01 R1
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4217

AD NUMBER:   67-25-01 R1

SUBJECT HEADING:   Airworthiness Directives; BRITISH AIRCRAFT Model BAC 1-11 200 and 400 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective October 14, 1981.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
67-25-01 R1 BRITISH AIRCRAFT: Amendment 39-476 as amended by 39-4217. Applies to Model BAC 1-11 200 and 400 Series Airplanes.

Compliance required as indicated

To prevent fatigue failures of the Belleville washers installed in the main undercarriage down lock jacks P/N AB43A15 and AB43A16 (200 Series), P/N AK43A15 and AK43A16 (400 Series), accomplish the following:

(a) For airplanes with Belleville washers P/N 1383 No. 12 (Terry) installed in the main undercarriage down lock jacks with less than 4,760 landings on the effective date of this AD, inspect the main undercarriage down lock links P/N AB43A17 (200 Series) or P/N AK43A17 (400 Series) before the accumulation of 5,000 landings, and thereafter at intervals not to exceed 240 landings from the last inspection in accordance with British Aircraft Corporation, BAC 1-11 Alert Service Bulletin 32-A-PM 2437, Issue 3, dated February 1, 1967, or later ARB- approved issue. Replace cracked or broken washers, and remove washers from service before the accumulation of 8,000 landings.

(b) For airplanes with Belleville washers P/N 1383 No. 12 (Terry) installed in the main undercarriage down lock jacks with 4,760 or more landings but less than 7,760 landings on the effective date of this AD, inspect the main undercarriage down lock links P/N AB43A17 (200 Series) or P/N AK43A17 (400 Series) within the next 240 landings after the effective date of this AD, and thereafter at intervals not to exceed 240 landings from the last inspection, in accordance with BAC 1-11 Alert Service Bulletin 32-A-PM 2437, Issue 3, dated February 1, 1967, or later ARB-approved issue. Replace cracked or broken washers and remove washers from service before the accumulation of 8,000 landings.

(c) For airplanes with Belleville washers P/N 1383 No. 12 (Terry) installed in the main undercarriage down lock jacks with 7,760 or more landings on the effective date of this AD, remove washers from service within the next 240 landings.

(d) For airplanes with Belleville washers P/N AB44-1791 installed in BAC Modification PM 2437 main undercarriage down lock jacks, with less than 15,800 landings on the effective date of this AD, remove washers from service before the accumulation of 16,000 landings.

(e) For airplanes with Belleville washers P/N AB44-1791 installed in BAC Modification PM 2437 main undercarriage down lock jacks with 15,800 or more landings on the effective date of this AD, remove washers from service within the next 200 landings.

(f) For airplanes with Tonks spring discs, P/N AK43-1283, installed in BAC Modification PM 4676 main landing gear down lock jacks, unless already accomplished, before accumulating 16,000 landings or within the next 3,000 landings after the effective date of this AD, whichever occurs later, remove the spring discs from service in accordance with paragraph 2, "ACCOMPLISHMENT INSTRUCTIONS," of BAC 1-11 Alert Service Bulletin 32-A- PM5700, Issue No. 1, dated May 10, 1979, or an FAA-approved equivalent.

(g) For the purpose of complying with this AD, subject to 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 for the airplane type.

(h) Upon request of an operator, an FAA maintenance inspector, subject to the prior approval of the Chief, Aircraft Certification Staff, FAA, Europe, Africa, and Middle East Region, may adjust the repetitive inspection intervals specified in this AD to permit compliance at an established inspection period of the operator or at intervals greater than that specified in this AD if the request contains substantiating data to justify the increase for that operator.

NOTE - AD 66-24-03 pertains to Belleville washers installed in the nose undercarriage up/down lock jacks.

The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made a part hereof pursuant 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 British Aerospace, Inc., Box 17414, Dulles International Airport, Washington, D.C. 20591. These documents may be examined at FAA Headquarters, Room 916, 800 Independence Avenue, SW., Washington, D.C. 20591.

Amendment 39-476 became effective September 9, 1967.

This amendment 39-4217 becomes effective October 14, 1981.

FOOTER: