AD 88-25-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Embraer S.A. | EMB-110P1 | Airworthiness Directives; Empresa Model EMB-110P1 and EMB-110P2 Series Airplanes |
| aircraft | Embraer S.A. | EMB-110P2 | Airworthiness Directives; Empresa Model EMB-110P1 and EMB-110P2 Series Airplanes |
Unsafe Condition
Inadvertent full flap extension due to flap control switch P/N 110-898-14 could result in loss of control during critical flight phases.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace flap control switch P/N 110-898-14 with P/N 110-898-14 Revision S per EMBRAER SB 110-027-0084 Part I, or modify the existing switch per Part II of the same SB and test/adjust the potentiometer as per Maintenance Manual T.P. 27-50-00/646. Compliance must be done by an appropriately rated repair station.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 50 hours time-in-service after the effective date of this AD, unless previously accomplished.
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Affected Aircraft
Embraer S.A. models EMB-110P1 and EMB-110P2 (serial numbers 110001 up to and including 110466) equipped with flap control switch P/N 110-898-14.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Flap Control Switch
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_88-25-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 88-25-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Empresa Model EMB-110P1 and EMB-110P2 Series Airplanes Subject: Flap Control Switch Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/05/1989 Make: Embraer S.A. Model: EMB-110P1 | EMB-110P2 Product Type: Aircraft Product Subtype: Small/Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 88-25-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-6086 AD NUMBER: 88-25-10 SUBJECT HEADING: Airworthiness Directives; Empresa Model EMB-110P1 and EMB-110P2 Series Airplanes ACTION: SUMMARY: DATES: Effective January 5, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 88-25-10 EMPRESA BRASILEIRA DE AERONAUTICA, S.A. (EMBRAER): Amendment 39-6086. Applicability: Models EMB-110P1 and EMB-110P2 (serial numbers (S/N) 110001 up to and including S/N 110466) airplanes equipped with multi position flap control switch P/N 110- 898-14, certificated in any category. Compliance: Within the next 50 hours time-in-service after the effective date of this AD, unless previously accomplished. To reduce the potential for inadvertent full flap extension that could result in loss of control of the airplane in a critical phase of flight, accomplish the following: (a) Replace the flap control switch, P/N 110-898-14, with flap control switch P/N 110-898-14, Revision S, in accordance with Part I of EMBRAER Service Bulletin (SB) 110-027-0084, dated March 23, 1988; or (b) Modify the flap control switch, P/N 110-898-14, in accordance with Part II of EMBRAER SB 110-027-0084, dated March 23, 1988, and electrically test the reassembled switch and adjust the potentiometer, if required, to resistance values specified for P/N 110-898- 14, Revision G, after the above modification in accordance with Section 2A "Adjusting the Potentiometer" as described in EMBRAER "Maintenance Manual with Illustrated Parts List", No. T.P. 27-50-00/646, dated February 15, 1985. The above modification, test and adjustment must be performed by an appropriately rated repair station. (c) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished. (d) An equivalent means of compliance with this AD may be used if approved by the Manager, Atlanta Aircraft Certification Office, FAA, Central Region. All persons affected by this directive may obtain copies of the documents referred to herein upon request to EMBRAER, 276 S.W. 34th Street, Fort Lauderdale, Florida 33315, or may examine these documents at the FAA, Office of the Assistant Chief Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106. This amendment (39-6086, AD 88-25-10) becomes effective January 5, 1989. FOOTER:
Document Text
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AD Final Rules - DRS_88-25-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 88-25-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Empresa Model EMB-110P1 and EMB-110P2 Series Airplanes Subject: Flap Control Switch Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/05/1989 Make: Embraer S.A. Model: EMB-110P1 | EMB-110P2 Product Type: Aircraft Product Subtype: Small/Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 88-25-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-6086 AD NUMBER: 88-25-10 SUBJECT HEADING: Airworthiness Directives; Empresa Model EMB-110P1 and EMB-110P2 Series Airplanes ACTION: SUMMARY: DATES: Effective January 5, 1989. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 88-25-10 EMPRESA BRASILEIRA DE AERONAUTICA, S.A. (EMBRAER): Amendment 39-6086. Applicability: Models EMB-110P1 and EMB-110P2 (serial numbers (S/N) 110001 up to and including S/N 110466) airplanes equipped with multi position flap control switch P/N 110- 898-14, certificated in any category. Compliance: Within the next 50 hours time-in-service after the effective date of this AD, unless previously accomplished. To reduce the potential for inadvertent full flap extension that could result in loss of control of the airplane in a critical phase of flight, accomplish the following: (a) Replace the flap control switch, P/N 110-898-14, with flap control switch P/N 110-898-14, Revision S, in accordance with Part I of EMBRAER Service Bulletin (SB) 110-027-0084, dated March 23, 1988; or (b) Modify the flap control switch, P/N 110-898-14, in accordance with Part II of EMBRAER SB 110-027-0084, dated March 23, 1988, and electrically test the reassembled switch and adjust the potentiometer, if required, to resistance values specified for P/N 110-898- 14, Revision G, after the above modification in accordance with Section 2A "Adjusting the Potentiometer" as described in EMBRAER "Maintenance Manual with Illustrated Parts List", No. T.P. 27-50-00/646, dated February 15, 1985. The above modification, test and adjustment must be performed by an appropriately rated repair station. (c) Airplanes may be flown in accordance with FAR 21.197 to a location where this AD may be accomplished. (d) An equivalent means of compliance with this AD may be used if approved by the Manager, Atlanta Aircraft Certification Office, FAA, Central Region. All persons affected by this directive may obtain copies of the documents referred to herein upon request to EMBRAER, 276 S.W. 34th Street, Fort Lauderdale, Florida 33315, or may examine these documents at the FAA, Office of the Assistant Chief Counsel, Room 1558, 601 East 12th Street, Kansas City, Missouri 64106. This amendment (39-6086, AD 88-25-10) becomes effective January 5, 1989. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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