| AD Number | 83-22-52 R1 | Status | Active |
| Effective Date | February 21, 1984 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-4786 |
| Product Type | ["Engine"] | Product Subtype | Not specified |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Pratt & Whitney Division |
| Model(s) | JT9D-7R4D JT9D-7R4D1 JT9D-7R4E JT9D-7R4E1 JT9D-7R4E4 JT9D-7R4G2 JT9D-7R4H1 |
83-22-52 R1 PRATT & WHITNEY AIRCRAFT: Amendment 39-4786. Applies to Pratt & Whitney JT9D- 7R4 series engines incorporating fuel nozzles, P/N 792842 and P/N 794731, which have accumulated 625 total cycles or more. Unless already accomplished refurbish fuel nozzles as follows:
(1) For fuel nozzles installed in JT9D-7R4D and -7R4E engines refurbish in accordance with Pratt & Whitney Aircraft All Operator Wire JT9/73-13/PSE:DAB:3-10-14-1 or Boeing 767-SL-73-1 with the following schedule:
A. Within the next 75 cycles if neither Pratt & Whitney Service Bulletin JT9D-7R4-73-4 dated May 3, 1983, nor Pratt & Whitney Aircraft Special Instruction No. 77F-83 is incorporated;
B. Within the next 150 cycles if either Pratt & Whitney Service Bulletin JT9D-7R4-73-4 dated May 3, 1983, or Pratt & Whitney Aircraft Special Instruction No. 77F-83 is incorporated;
C. Refurbish nozzles at intervals not to exceed 700 cycles thereafter.
(2) For fuel nozzles installed in JT9D-7R4D1, -7R4E1, -7R4E3, -7R4G2, and -7R4H1 engines refurbish in accordance with Pratt & Whitney Aircraft All Operator Wire HT9/73-13/PSE:DAB:3-10-14-1 or Boeing 747- SL-73-14 or Pratt & Whitney Aircraft Manual P/N 785057 TR72-1 with the following schedule:
A. Within the next 150 cycles.
B. At intervals not to exceed 700 cycles thereafter.
NOTE: Cone angle check is not mandatory after sonic cleaning in accordance with Pratt & Whitney Aircraft all operator wire JT9/73-13/PSE:DAB:3-10-14-1.
Upon request of an operator, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Engine Certification Branch, Federal Aviation Administration, New England Region.
Pratt & Whitney Aircraft All Operator Wire JT9/73-13/PSE:DAB:3-10-14-1, Pratt & Whitney Aircraft Service Bulletin JT9D-7R4-73-4 dated May 3, 1983, Pratt & Whitney Aircraft Special Instruction No. 77F-83, Boeing Service Letter 747-SL-73-14, Boeing Service Letter 767-SL-73-1, and Pratt & Whitney Aircraft Manual P/N 785057 TR72-1 identified and described in this directive are incorporated herein and made by reference a part hereof pursuant to 5 U.S.C. 552(a)(1).
All persons affected by this directive who have not already received the referenced service documents from the manufacturers may obtain copies upon request to Pratt & Whitney Aircraft, Division of United Technologies Corporation, 400 Main Street, East Hartford, Connecticut 06108 or The Boeing Company, P.O. Box 3707, Seattle, Washington 98124. These documents may also be examined at FAA, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803. A historical file on this AD which includes the material in full is maintained by the FAA at the New England Region Office.
The telegraphic airworthiness directive issued on October 28, 1983, became effective upon receipt.
This amendment becomes effective on February 21, 1984.