# AD 87-23-04 R1: Low PressureTurbine Disk - Type: Airworthiness directive - Status: Current - Products: Rolls-Royce RB211-22B-02, RB211-22B/MOD 72-8700, RB211-524-02, RB211-524B-02, RB211-524B-B-02, RB211-524B2-19, RB211-524B2-B-19, RB211-524B3-02, RB211-524C2-19 and RB211-524C2-B-19 - Effective: May 31, 1989 - Superseded by: Nothing supersedes this AD - Product type: Engine - Amendment: 39-6180 - Registered aircraft: 191 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1E72CCF458EA163886256862005EA43E.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/87-23-04-R1 ## The airworthiness directive 87-23-04 R1 ROLLS-ROYCE plc: Amendment 39-5753 as amended by amendment 39-6180. Applicability: Rolls-Royce plc (R-R) RB211-22B, -524, -524B, -524B2, -524B3, and -524C2 turbofan engines. Compliance: Required as indicated, unless already accomplished. To prevent low pressure turbine (LPT) stage 1 disk uncontained failure, accomplish the following: (a) Modify LPT stage 2 vane nozzle assemblies, Part Numbers (P/N) LK63392, LK63331, LK63333, LK59046, LK59816, LK59853, LK59818, LK59038, LK55447, LK55420, LK54278, LK55452, and LK59002, in accordance with the Accomplishment Instructions of R-R Service Bulletin (SB) RB.211-72-8301, Revision 5, dated May 13, 1988, at the next shop visit of the LPT module, but not later than June 30, 1989. NOTE: For the purpose of this AD, an LPT module shop visit is defined as separation of the LPT rotor assembly from the LPT case/vane nozzle assembly as necessitated by (1) its condition or (2) a requirement for scheduled maintenance. (b) Aircraft may be ferried in accordance with the provisions of FAR 21.197 and 21.199 to a base where the AD may be accomplished. (c) Upon submission of substantiating data by an owner or operator through an FAA Airworthiness Inspector, and alternative method of compliance with the requirements of this AD or adjustments to the compliance times specified in this AD, may be approved by the Manager, Engine Certification Office, ANE-140, Engine and Propeller Directorate, Aircraft Certification Service. The LPT stage 2 vane nozzle assembly modification shall be done in accordance with Rolls-Royce SB RB.211-72-8301, Revision 5, dated May 13, 1988. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552 (a) and 1 CFR Part 51. Copies may be obtained from Rolls-Royce plc, Technical Publications Department, P.O. Box 31, Derby DE2 8BJ, England. Copies may be inspected at the Regional Rules Docket, Office of the Assistant Chief Counsel, Federal Aviation Administration, New England Region, 12 New England Executive Park, Room 311, Burlington, Massachusetts 01803, or at the Office of the Federal Register, 1100 L Street, N.W., Room 8301, Washington, DC. Amendment 39-5753, AD 87-23-04 became effective on December 11, 1987. This amendment (39-6180, AD 87-23-04 R1) becomes effective on May 31, 1989. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS E12EU](https://openairdocs.org/tcds/E12EU): Rolls-Royce Deutschland Ltd & Co KG; names 8 of 22 models: RB211-524B3-02, RB211-524C2-B-19, RB211-524B2-19, RB211-524B-02, RB211-524B-B-02, RB211-524C2-19, RB211-22B-02 (MOD 72-8700), RB211-524B2-B-19 ## 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: 191 (0 by airframe model, 191 by engine model) - Makers: Boeing 189, Airbus 1, Lockheed 1 Models with the most aircraft: - [Rolls-Royce RB-211 series](https://openairdocs.org/engine/rolls-royce-rb-211-series): 182 aircraft (engine model) - [Rolls-Royce RB-211-22 series](https://openairdocs.org/engine/rolls-royce-rb-211-22-series): 8 aircraft (engine model) - [Rolls-Royce RB211-22B-02](https://openairdocs.org/engine/rolls-royce-rb211-22b-02): 1 aircraft (engine model) All 3 models: https://openairdocs.org/ad/87-23-04-R1/models.md Every aircraft: https://openairdocs.org/ad/87-23-04-R1/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.