# AD 85-06-01: Flame Tube Liners And Suspension Pins - Type: Airworthiness directive - Status: Current - Products: Rolls-Royce Deutschland Dart 525, Dart 525F, Dart 526, Dart 527, Dart 528-7E, Dart 528D-7E, Dart 529-7E, Dart 529-7H, Dart 529-8E, Dart 529-8H, Dart 529-8X, Dart 529-8Y and 20 more - Effective: April 3, 1985 - Superseded by: Nothing supersedes this AD - Product type: Engine - Amendment: 39-5013 - Registered aircraft: 5 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B1112767816FB2AF86256862004D789C.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/85-06-01 ## The airworthiness directive 85-06-01 ROLLS-ROYCE LIMITED: Amendment 39-5013. Applies to Rolls-Royce Limited Dart engine series 525, 526, 527, 528, 529, 530, 531, 532, 535, 551, and all variants of these series which do not feature Rolls-Royce Modifications 1425, 1618, 1719, or 1723. Compliance required as indicated unless already accomplished. To prevent excessive wear in flame tube liners and suspension pins which may lead to flame breakout from the combustion chamber and to overheating and failure of the high pressure turbine disk rim, accomplish the following: 1. For engines which do not have Modification 1736, Part 2 incorporated accomplish the following: (a) Inspect flame tube liners and suspension pins for wear at the primary and repetitive intervals in accordance with mandatory Rolls-Royce Dart SB No. Da72-485, dated July 2, 1984. Replace the affected parts, if wear is outside the "acceptable" limits given in paragraphs 4D(3) and 4D(4) of SB Da72-485, prior to further flight.(b) Incorporate Modification 1736, Part 2, in accordance with Rolls-Royce SB No. Da72-423, Part 2, Revision 16, dated July 13, 1984, at the next flame tube overhaul. 2. For engines which have incorporated Modification 1736, Part 2, inspect flame tube liners and suspension pins for wear at the initial and standard intervals in accordance with Rolls-Royce Dart SB Da72-470, Revision 1, dated March 30, 1984. Replace the affected parts, if wear is outside the "acceptable" limits given in paragraphs 4D(3) and 4D(4) of SB 72-470, prior to further flight. Aircraft may be ferried in accordance with the provisions of Federal Aviation Regulation (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. The manufacturer's specifications and procedures identified and described in this directive are incorporated herein and made 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 Manager, Dart Service, Rolls-Royce Limited, East Kilbride, Glasgow, G74 4PY Scotland. These documents also may be examined at the Office of the Regional Counsel, FAA, New England Region, Rules Docket No. 84-ANE-16, 12 New England Executive Park, Burlington, Massachusetts 01803, weekdays, except federal holidays, between the hours of 8:00 a.m. and 4:30 p.m. This AD supersedes AD 77-18-02, Amendment 39-3027, and AD 78-01-07, Amendment 39-3109, which became effective on September 28, 1977, and January 12, 1978, respectively. This amendment becomes effective on April 3, 1985. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS E-297](https://openairdocs.org/tcds/E-297): Rolls-Royce Deutschland Ltd & Co KG; names 28 of 31 models: Dart 532-7R, Dart 529D-8H, Dart 529-8X, Dart 535-7R, Dart 529-7H, Dart 531, Dart 529-8H, Dart 551-7… ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 5 (0 by airframe model, 5 by engine model) - Makers: Grumman 3, Fairchild 1, Fokker 1 Models with the most aircraft: - [Rolls-Royce DART-529 series](https://openairdocs.org/engine/rolls-royce-dart-529-series): 4 aircraft (engine model) - [Rolls-Royce DART-535-7R](https://openairdocs.org/engine/rolls-royce-dart-535-7r): 1 aircraft (engine model) All 2 models: https://openairdocs.org/ad/85-06-01/models.md Every aircraft: https://openairdocs.org/ad/85-06-01/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.