# AD 96-14-09: Ice Protection Switches - Type: Airworthiness directive - Status: Historical - Products: BAE Systems BAe 146-100A, BAe 146-200A and BAe 146-300A - Effective: July 22, 1996 - Published: July 17, 1996, 61 FR 37199–37202 - Issued as: Final rule; request for comments - Superseded by: [AD 2000-05-25](https://openairdocs.org/ad/2000-05-25) - Product type: Aircraft, Large airplane - Amendment: 39-9694 - Docket: 96-NM-162-AD - Registered aircraft: 8 may be affected, by airframe or engine model (OpenAirDocs) - Official PDF: https://openairdocs.org/files/sha256/29/4a/294aecf79877ae8e82809957ccab0f716a60f6b5be9a3948391eeb8170e88318 (from https://www.govinfo.gov/content/pkg/FR-1996-07-17/pdf/96-17984.pdf) - Federal Register: https://www.federalregister.gov/documents/1996/07/17/96-17984/airworthiness-directives-british-aerospace-model-bae-146-100a---200a-and--300a-series-airplanes - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0FC9B18C4E49D19886256A0A00736F22.0001 - DRS record last changed: August 7, 2025 - Page: https://openairdocs.org/ad/96-14-09 ## The airworthiness directive 96-14-09 BRITISH AEROSPACE REGIONAL AIRCRAFT LIMITED, AVRO INTERNATIONAL AEROSPACE DIVISION (Formerly British Aerospace, plc; British Aerospace Commercial Aircraft Limited): Amendment 39-9694. Docket No. 96-NM-162-AD. Supersedes AD 94-07-09, Amendment 39-8867. Applicability: All Model BAe 146-100A, -200A, and -300A airplanes, certificated in any category. NOTE 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (e) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it. Compliance: Required as indicated, unless accomplished previously. To prevent engine power rollback during flight in icing conditions above an altitude of 26,000 feet, accomplish the following: (a) For airplanes listed in British Aerospace Service Bulletin SB.11-97-01285A, Revision 1, dated April 3, 1992: Within 30 days after December 17, 1992 (the effective date of AD 92-24-09, amendment 39-8415), install a placard below the ice protection switches on the flight deck overhead panel to include additional procedures to be followed when operating at certain flight levels with the engine and airframe anti-ice switch ON, in accordance with British Aerospace Service Bulletin SB.11-97-01285A, Revision 1, dated April 3, 1992. (b) For airplanes listed in British Aerospace Service Bulletin SB.11-97-01285A, Revision 1, dated April 3, 1992: Within 30 days after December 17, 1992 (the effective date of AD 92-24-09, amendment 39-8415), modify the air brake auto-retract function, in accordance with British Aerospace Service Bulletin SB.11-97-01285A, Revision 1, dated April 3, 1992. (c) Within 6 days after the effective date of this AD, amend the FAA-approved Airplane Flight Manual (AFM) as required by paragraphs (c)(1) and (c)(2) of this AD. (1) Remove the following Temporary Revisions (TR) from the Limitations Section and Normal/Abnormal Procedures Section, as applicable: (i) For Model BAe 146-100A airplanes: TR 30, Issue No. 2 (Document No. BAe 3.3), dated February 1994. (ii) For Model BAe 146-200A airplanes: TR 41, Issue No. 2 (Document No. BAe 3.3), dated February 1994, or TR 42, Issue No. 2 (Document No. BAe 3.3), dated February 1994, as applicable. (iii) For Model BAe 146-300A airplanes: TR 23, Issue No. 2 (Document No. BAe 3.3), dated February 1994. (2) Insert the following TR s into the Limitations Section and theNormal/Abnormal Procedures/Handling Section, as applicable. (i) For Model BAe 146-100A airplanes: TR 32, Issue No. 2 (Document BAe 3.3), dated July 1996. (ii) For Model BAe 146-200A airplanes: TR 44, Issue No. 2 (Document BAe 3.6), dated July 1996. (iii) For Model BAe 146-300A airplanes: TR 25, Issue No. 2 (Document BAe 3.11), dated July 1996. (d) When the TR s specified in paragraph (c)(2) have been incorporated into an AFM General Revision, the applicable AFM General Revision may be inserted into the corresponding FAA-approved AFM, provided the information contained in the AFM General Revision corresponds identically to that specified in TR 32, TR 44, or TR 25. (e) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Operations Inspector, who may add comments and then send it to the Manager, Standardization Branch, ANM-113. NOTE 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113. (f) Special flight permits may be issued in accordance with Sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. (g) The AFM revisions shall be done in accordance with Temporary Revision (TR) 32, Issue No. 2 (Document BAe 3.3), dated July 1996 (for Model BAe 146-100A airplanes); TR 44, Issue No. 2 (Document BAe 3.6), dated July 1996 (for Model BAe 146-200A airplanes); and TR 25, Issue No. 2 (Document BAe 3.11), dated July 1996 (for Model BAe 146-300A airplanes); as applicable. 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 British Aerospace Holding, Inc., Avro International Aerospace Division, P.O. Box 16039, Dulles International Airport, Washington DC 20041-6039. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (h) This amendment becomes effective on July 22, 1996, to all persons except those persons to whom it was made immediately effective by emergency AD 96-14-09, issued July 2, 1996, which contained the requirements of this amendment. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A49EU](https://openairdocs.org/tcds/A49EU): BAE Systems (Operations) Limited; names 3 of 6 models: BAe 146-300A, BAe 146-100A, BAe 146-200A ## 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: 8 (8 by airframe model, 0 by engine model) - Makers: British Aerospace 8 Models with the most aircraft: - [British Aerospace BAE 146 SERIES 200A](https://openairdocs.org/model/british-aerospace-bae-146-series-200a): 8 aircraft (airframe model) All 1 models: https://openairdocs.org/ad/96-14-09/models.md Every aircraft: https://openairdocs.org/ad/96-14-09/aircraft.md ## Related documents - [AD 2000-05-25](https://openairdocs.org/ad/2000-05-25): Icing Conditions · BAE Systems BAe 146-100A, BAe 146-200A and BAe 146-300A. Effective Apr 24, 2000. Supersedes this AD No proposed rule in this release led to it. 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.