AD 85-03-03 R1

AD Final Rules - DRS_85-03-03_R.html
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AD Number:
85-03-03 R1
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
ROLLS-ROYCE LIMITED Models Dart 506, 510, 511, 514, 525, 526, 527, 528, 529, 530, 531, 532, 535, and...Show more
Subject:
Low Pressure Impeller
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
01/06/1986
Make:
Rolls-Royce Deutschland Ltd & Co KG
Model:
Dart 506 | Dart 510 | Dart 511 | Dart 511-7E | Dart 514 | Dart 514-7 | Dart 525 | Dart 525F | Dart 5...Show more
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Superseded AD: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Superseded By: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: 85-03-03 R1
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-5197

AD NUMBER:   85-03-03 R1

SUBJECT HEADING:   ROLLS-ROYCE LIMITED Models Dart 506, 510, 511, 514, 525, 526, 527, 528, 529, 530, 531, 532, 535, and 542 Series Engines


ACTION:  

SUMMARY:  

DATES:   Effective January 6, 1986.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
85-03-03 R1 ROLLS-ROYCE LIMITED: Amendment 39-4987 as amended by Amendment 39-5197. Applies to Rolls-Royce Dart engines series 506, 510, 511, 514, 525, 526, 527, 528, 529, 530, 531, 532, 535, 542, and all variants of these series.

Compliance is required as indicated unless already accomplished.

To prevent possible uncontained failure of the low pressure impeller, accomplish the following:

Inspect certain low pressure impellers in accordance with mandatory Rolls-Royce Alert Service Bulletin (SB) Da72-A488, Revision 1, dated October 18, 1984, and Rolls-Royce SB Da72-480, Revision 4, dated December 1984, or FAA approved equivalent. Remove from service all impellers not ,meeting the inspection criteria per Rolls-Royce SB Da72-480.

(a) Inspect low pressure impellers with serial numbers listed in Appendix 1 of Rolls-Royce SB DA72- A488, Revision 1, which have accumulated less than 2,000 flights since new, within the next 200 flights, but not later than March 31, 1985.

(b) Inspect low pressure impellers with serial numbers listed in Appendix 2 of Rolls-Royce SB Da72- A488, Revision 1, which have accumulated less than 2,000 flights since new, within the next 600 flights or next shop visit, whichever comes first, but not later than September 30, 1985.

NOTE: Shop Visit (as defined in the World Airlines Technical Operations Glossary) is defined as the input of an engine to a repair shop where the subsequent engine maintenance entails:

(a) Separation of a major engine flange (lettered or numbered) other than flanges mating with major sections of the nacelle or reverser. Note: Separation of flanges purely for purposes of shipment, without subsequent internal maintenance, is not a "Shop Visit."

(b) Removal of a disk or hub or spool.

(c) Removal of the main or angle gearbox.

(d) Removal of the fuel nozzles.

(c) Inspect low pressure impellers with serial numbers listed in Appendix 1 of Rolls-Royce SB Da72- A488, Revision 2, which have not been inspected per (a) above, which have accumulated less than 3,500 flights since new, within the next 100 flights, but not later than February 28, 1986.

(d) Inspect low pressure impellers with serial numbers listed in Appendix 1 of Rolls-Royce SB Da72- A488, Revision 2, which have not been inspected per (a) above, which have accumulated 3,500 or more flights since new, within the next 500 flights, but not later than April 30, 1986.

For purpose of this AD the term "repair shop" refers to a maintenance station where low compressor overhaul facilities exist.

Aircraft may be ferried in accordance with the provisions of Federal Aviation Regulations (FARs) 21.197 and 21.199 to a base where the AD can be accomplished.

Upon request, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Engine Certification Office, Aircraft Certification Division, FAA, New England Region, 12 New England Executive Park, Burlington, Massachusetts 01803.

Rolls-Royce SB Da72-A488, Revision 2, dated July 25, 1985, is 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 this document from the manufacturer may obtain Rolls-Royce Limited, East Kilbride, Glasgow G74 4PY, Scotland. This document also may be examined at the Office of the Regional Counsel, FAA, New England Region, Attention: Rules Docket No. 84-ANE-19, 12 New England Executive Park, Room Number 311, between the hours of 8:00 a.m. and 4:30 p.m., Monday through Friday except Federal holidays.

Amendment 39-4987 became effective on February 11, 1985.

This Amendment 39-5197 becomes effective on January 6, 1986.

FOOTER: