AD 65-03-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron Aviation Inc. | Army AT-11 | Airworthiness Directives; Beech Model AT-11, C18S, D18S, E18S and C-45 Series Airplanes |
| aircraft | Textron Aviation Inc. | C-45G | Airworthiness Directives; Beech Model AT-11, C18S, D18S, E18S and C-45 Series Airplanes |
| aircraft | Textron Aviation Inc. | C-45H | Airworthiness Directives; Beech Model AT-11, C18S, D18S, E18S and C-45 Series Airplanes |
| aircraft | Textron Aviation Inc. | C18S | Airworthiness Directives; Beech Model AT-11, C18S, D18S, E18S and C-45 Series Airplanes |
| aircraft | Textron Aviation Inc. | D18S | Airworthiness Directives; Beech Model AT-11, C18S, D18S, E18S and C-45 Series Airplanes |
| aircraft | Textron Aviation Inc. | E18S | Airworthiness Directives; Beech Model AT-11, C18S, D18S, E18S and C-45 Series Airplanes |
Unsafe Condition
Freezing of moisture in the continuous (piano) hinges which attach the stabilizer-to-elevator gap seal strips causes the spring loaded strips to stick in a deflected position. The deflected strips act as aerodynamic spoilers which cause serious longitudinal control difficulties.
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Required Actions
Apply a good coverage of Federal Specification VV-L-800 oil or an approved alternate lubricant mixture to the top and bottom sides of both upper and lower stabilizer-to-elevator gap seal strip piano-type hinges. Deflect the seal strips several times during application to ensure fluid penetration into hinge pin and mating areas.
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Compliance Time
Within 25 hours' time in service after the effective date of this AD, and thereafter at intervals not exceeding 50 hours' time in service, or 60 days, whichever occurs first.
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Affected Aircraft
Beech Model AT-11, C18S, D18S, E18S, and C-45 series airplanes modified with Airline Training, Inc. Supplemental Type Certificates Nos. SA4-113, SA-119, SA4-128, SA2-280, SA2-383, SA2-523, SA2-820, SA2-1016, or SA2-1246.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Gap Seal Strips
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_65-03-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 65-03-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Beech Model AT-11, C18S, D18S, E18S and C-45 Series Airplanes Subject: Gap Seal Strips Status: Current Citation: Federal Register: January 28, 1965 Citation Publish Date: 01/28/1965 Effective Date: Make: Textron Aviation Inc. Model: Army AT-11 | C-45G | C-45H | C18S | D18S | E18S Product Type: Aircraft Product Subtype: Small 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: 65-03-01 CITATION: [Federal Register: January 28, 1965] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1263 AD NUMBER: 65-03-01 SUBJECT HEADING: Airworthiness Directives; Beech Model AT-11, C18S, D18S, E18S and C-45 Series Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 65-03-01 BEECH: Amdt. 39-26 Part 39 Federal Register January 28, 1965 is amended by Amendment 39-1263. Applies to Models AT-11, C18S, D18S, E18S and C-45 series airplanes which have been modified in accordance with one or more of Airline Training, Inc. Supplemental Type Certificates Nos. SA4-113, SA-119, SA4-128, SA2-280, SA2-383, SA2-523, SA2-820, SA2-1016 and SA2-1246. Compliance required as indicated. Freezing of moisture in the continuous (piano) hinges which attach the stabilizer-to- elevator gap seal strips causes the spring loaded strips to stick in a deflected position. The deflected strips act as aerodynamic spoilers which cause serious longitudinal control difficulties. In order to preclude this condition, accomplish the following: Within 25 hours' time in service after the effective date of this AD, and thereafter at intervals not exceeding 50 hours' time in service, or 60 days, whichever occurs first, accomplish the following or equivalent approved by Engineering and Manufacturing Branch, FAA Southern Region. (a) Apply a good coverage of Federal Specification VV-L-800 oil to the top and bottom sides of both upper and lower stabilizer-to-elevator gap seal strip piano-type hinges. An acceptable alternate lubricant is a mixture of MIL-G-81322 (MIL-G-25760) or MIL-G-23827 (MIL-G-7118) grease and methyl ethyl ketone or aliphatic naphtha (Varsol), to a consistency suitable for application with a squirt-type oil can or an equivalent material approved by Engineering and Manufacturing Branch, FAA Southern Region. (b) While the mixture is being applied, deflect the seal strips several times to assure maximum penetration of the fluid into the hinge pin and hinge mating areas. Amendment 39-26 was effective February 8, 1965. Amendment 39-1263 becomes effective upon publication in the Federal Register. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_65-03-01.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 65-03-01 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Beech Model AT-11, C18S, D18S, E18S and C-45 Series Airplanes Subject: Gap Seal Strips Status: Current Citation: Federal Register: January 28, 1965 Citation Publish Date: 01/28/1965 Effective Date: Make: Textron Aviation Inc. Model: Army AT-11 | C-45G | C-45H | C18S | D18S | E18S Product Type: Aircraft Product Subtype: Small 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: 65-03-01 CITATION: [Federal Register: January 28, 1965] PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-1263 AD NUMBER: 65-03-01 SUBJECT HEADING: Airworthiness Directives; Beech Model AT-11, C18S, D18S, E18S and C-45 Series Airplanes ACTION: SUMMARY: DATES: ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 65-03-01 BEECH: Amdt. 39-26 Part 39 Federal Register January 28, 1965 is amended by Amendment 39-1263. Applies to Models AT-11, C18S, D18S, E18S and C-45 series airplanes which have been modified in accordance with one or more of Airline Training, Inc. Supplemental Type Certificates Nos. SA4-113, SA-119, SA4-128, SA2-280, SA2-383, SA2-523, SA2-820, SA2-1016 and SA2-1246. Compliance required as indicated. Freezing of moisture in the continuous (piano) hinges which attach the stabilizer-to- elevator gap seal strips causes the spring loaded strips to stick in a deflected position. The deflected strips act as aerodynamic spoilers which cause serious longitudinal control difficulties. In order to preclude this condition, accomplish the following: Within 25 hours' time in service after the effective date of this AD, and thereafter at intervals not exceeding 50 hours' time in service, or 60 days, whichever occurs first, accomplish the following or equivalent approved by Engineering and Manufacturing Branch, FAA Southern Region. (a) Apply a good coverage of Federal Specification VV-L-800 oil to the top and bottom sides of both upper and lower stabilizer-to-elevator gap seal strip piano-type hinges. An acceptable alternate lubricant is a mixture of MIL-G-81322 (MIL-G-25760) or MIL-G-23827 (MIL-G-7118) grease and methyl ethyl ketone or aliphatic naphtha (Varsol), to a consistency suitable for application with a squirt-type oil can or an equivalent material approved by Engineering and Manufacturing Branch, FAA Southern Region. (b) While the mixture is being applied, deflect the seal strips several times to assure maximum penetration of the fluid into the hinge pin and hinge mating areas. Amendment 39-26 was effective February 8, 1965. Amendment 39-1263 becomes effective upon publication in the Federal Register. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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