AD 64-11-01

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AD Number:
64-11-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
BOEING Models 707 and 720 Series Aircraft
Subject:
Wing Spar Chords
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
05/09/1969
Make:
The Boeing Company
Model:
707-100 Long Body | 707-100B Long Body | 707-100B Short Body | 707-200 | 707-300 Series | 707-300B S...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Superseded AD: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Superseded By: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: 64-11-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-763

AD NUMBER:   64-11-01

SUBJECT HEADING:   BOEING Models 707 and 720 Series Aircraft

ACTION:  

SUMMARY:  

DATES:   Effective May 9, 1969.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
64-11-01 BOEING: Amendment 39-763. Applies to models 707 and 720 Series Aircraft.
Compliance required as indicated.

Cracks have been discovered in the front and rear upper and lower wing spar chords on the 707/720 Series aircraft. Accordingly, in the interest of safety accomplish the following or an equivalent approved by Aircraft Engineering Division, FAA Western Region:

(a) Paragraph (a) Superseded by AD 77-02-01.

(b) On all 707 and 720 Series aircraft delivered prior to October 1962, accomplish the following:

(1) On 707 and 720 Series aircraft which have been inspected in accordance with AD 64-03-02, paragraph (b), visually reinspect thereafter at intervals not to exceed 6,000 hours' time in service for spanwise cracks in the wing upper and lower front spar chords between front spar Station 727 and the production break fittings.

(2) If a crack is detected, repair the cracked spar chord in accordance with Boeing front spar repair drawing 65-40144 or an Aircraft Engineering Division, FAA Western Region, approved equivalent before further flight. The repetitive inspections required by subparagraph (1) may be discontinued on any chord repaired in accordance with this subparagraph.

(c) Upon request of an operator, an FAA maintenance inspector, subject to prior approval of the Chief, Aircraft Engineering Division, FAA Western 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 increase for such operator.

NOTE. - This AD supplements but does not cancel AD 64-03-02.

(Boeing Service Bulletins No. 1964 (R-3) and No. 1964(R-3)A cover this same subject.)

This directive effective May 21, 1964.

Revised August 22, 1964.

Revised March 5, 1965.

Revised May 1, 1965.

Revised August 20, 1968.

Revised October 29, 1968.

Revised March 22, 1969.

Revised May 9, 1969.

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