AD 67-28-05

AD Final Rules - DRS_67-28-05.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
67-28-05
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
PRATT & WHITNEY Models JT3D-1, JT3D-1-MC6, JT3D-1-MC7, JT3D-3, and JT3D-3B Engines
Subject:
First Stage Fan Hub
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/24/1967
Make:
Pratt & Whitney Division
Model:
JT3D-1 | JT3D-1-MC6 | JT3D-1-MC7 | JT3D-3 | JT3D-3B
Product Type:
Engine
Product Subtype:
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 67-28-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-495

AD NUMBER:   67-28-05

SUBJECT HEADING:   PRATT & WHITNEY Models JT3D-1, JT3D-1-MC6, JT3D-1-MC7, JT3D-3, and JT3D-3B Engines

ACTION:  

SUMMARY:  

DATES:   Effective October 24, 1967.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   67-28-05 PRATT & WHITNEY: Amdt. 39-495 Part 39 Federal Register October 21, 1967. Applies to Models JT3D-1, JT3D-1-MC6, JT3D-1-MC7, JT3D-3, and JT3D-3B Turbofan Engines with First Stage Fan Hubs, P/N 431001, that have not been inspected in accordance with Pratt & Whitney Aircraft Turbojet Engine Service Bulletin No. 1219, dated June 3, 1966, or later FAA-approved revision, and reworked in accordance with Pratt & Whitney Aircraft turbojet engine Service Bulletin No. 1066; dated October 25, 1965, or Service Bulletin No. 1219, dated June 3, 1966, or later FAA-approved revisions of these bulletins.
Compliance required as indicated.
(a) Before further flight, unless already accomplished within the last four cycles and thereafter at intervals not to exceed four cycles from the last inspection, visually inspect front of first stage fan hub, P/N 431001, with 6000 or more cycles since new for the JT3D-1, JT3D-1-MC6, JT3D-1-MC7, or JT3D-3 and JT3D- 3B turbofan engine models operated at JT3D-1 engine power ratings, or 4000 or more cycles since new for turbofan engine models operated at JT3D-3 or JT3D-3B engine power ratings, for indications of cracks emanating from root of fan blade slots, using a glass of at least 3-power.
(b) If indications of cracks are found, remove hub from service before further flight, except that the airplane may be flown in accordance with FAR 21-197 to a base where the hub can be removed.
(c) For the purposes of this AD, the number of cycles equals the number of landings (including touch- and-go landings).
(d) Upon submission of substantiating data through an FAA maintenance inspector, the Chief, Engineering and Manufacturing Branch, FAA, Eastern Region, may adjust the repetitive inspection period of the operator.
This amendment effective October 24, 1967.
This Supersedes AD 66-17-03.

FOOTER: