AD 81-06-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Gulfstream Aerospace Corporation | G-1159 | Airworthiness Directives; GULFSTREAM AMERICAN CORPORATION Model G-1159 Airplanes |
Unsafe Condition
Improper functioning of the landing gear system due to installation of landing gear selector valve part numbers 1159SCH216-3, which may interrupt retraction or extension.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the landing gear selector valve to determine its part number. If P/N 1159SCH216-3 is installed, install a placard with specified wording adjacent to the landing gear selector handle and add the FAA Approved Flight Manual Supplement No. GII-81-01. Before further flight, these actions must be completed. Additionally, within 60 landing gear operating cycles, replace P/N 1159SCH216-3 with P/N 1159SCH216-1 or -5, then remove the placard and supplement.
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Compliance Time
Within the next 10 hours time in service after the effective date of this AD for the inspection; before further flight for placard installation and manual update; within 60 landing gear operating cycles after effective date for valve replacement.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Gulfstream American Corporation Model G-1159, serial numbers 1 through 258, and 775, certificated in all categories.
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Federal Register Abstract
Landing Gear System
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_81-06-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-06-07 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; GULFSTREAM AMERICAN CORPORATION Model G-1159 Airplanes Subject: Landing Gear System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/27/1981 Make: Gulfstream Aerospace Corporation Model: G-1159 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 81-06-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4054 AD NUMBER: 81-06-07 SUBJECT HEADING: Airworthiness Directives; GULFSTREAM AMERICAN CORPORATION Model G-1159 Airplanes ACTION: SUMMARY: DATES: Effective March 27, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-06-07 GULFSTREAM AMERICAN CORPORATION (formerly Grumman American Corporation, Grumman Aerospace Corporation): Amendment 39-4054. Applies to Gulfstream American Model G-1159, serial numbers 1 through 258, and 775, certificated in all categories. Compliance is required as indicated, unless already accomplished. To prevent improper functioning of the landing gear system, accomplish the following: Within the next 10 hours time in service after the effective date of this AD, inspect the landing gear selector valve to determine valve part number (Ref. Gulfstream II Illustrated Parts Catalog (IPC) Figure 32-23, Item 52). (a) If P/N 1159SCH216-1 or P/N 1159SCH216-5 is installed, no further action is required. (b) If P/N 1159SCH216-3 is installed, accomplish the following: (1) Before further flight, install placard adjacent to the landing gear selector handle. The wording of the placard shall be: "INTERRUPTION OF LANDING GEAR RETRACTION OR EXTENSION PROHIBITED", using letters of 1/8 inch minimum height. Concurrently, FAA Approved Flight Manual Supplement No. GII-81-01, dated February 6, 1981, must be added to the Airplane Flight Manual. The Flight Manual Supplement may be obtained from Gulfstream American Corporation, P.O. Box 2206, Savannah, Georgia 31402. (2) Within 60 landing gear operating cycles (one retraction and one extension) after effective date of this AD, replace P/N 1159SCH216-3 landing gear selector valves with either a P/N 1159SCH216-1 or a P/N 1159SCH216-5 valve. Remove the placard and the Airplane Flight Manual Supplement added in section (1) when either of the replacement valves is installed. An equivalent method of compliance may be approved by the Chief, Engineering and Manufacturing Branch, FAA Southern Region. NOTE: Information concerning replacement selector valves may be obtained from Gulfstream American Corporation Customer Bulletin No. 305, amendment No. 1, January 15, 1981. This amendment is effective March 27, 1981. FOOTER:
Document Text
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AD Final Rules - DRS_81-06-07.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 81-06-07 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; GULFSTREAM AMERICAN CORPORATION Model G-1159 Airplanes Subject: Landing Gear System Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/27/1981 Make: Gulfstream Aerospace Corporation Model: G-1159 Product Type: Aircraft Product Subtype: 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: 81-06-07 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-4054 AD NUMBER: 81-06-07 SUBJECT HEADING: Airworthiness Directives; GULFSTREAM AMERICAN CORPORATION Model G-1159 Airplanes ACTION: SUMMARY: DATES: Effective March 27, 1981. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 81-06-07 GULFSTREAM AMERICAN CORPORATION (formerly Grumman American Corporation, Grumman Aerospace Corporation): Amendment 39-4054. Applies to Gulfstream American Model G-1159, serial numbers 1 through 258, and 775, certificated in all categories. Compliance is required as indicated, unless already accomplished. To prevent improper functioning of the landing gear system, accomplish the following: Within the next 10 hours time in service after the effective date of this AD, inspect the landing gear selector valve to determine valve part number (Ref. Gulfstream II Illustrated Parts Catalog (IPC) Figure 32-23, Item 52). (a) If P/N 1159SCH216-1 or P/N 1159SCH216-5 is installed, no further action is required. (b) If P/N 1159SCH216-3 is installed, accomplish the following: (1) Before further flight, install placard adjacent to the landing gear selector handle. The wording of the placard shall be: "INTERRUPTION OF LANDING GEAR RETRACTION OR EXTENSION PROHIBITED", using letters of 1/8 inch minimum height. Concurrently, FAA Approved Flight Manual Supplement No. GII-81-01, dated February 6, 1981, must be added to the Airplane Flight Manual. The Flight Manual Supplement may be obtained from Gulfstream American Corporation, P.O. Box 2206, Savannah, Georgia 31402. (2) Within 60 landing gear operating cycles (one retraction and one extension) after effective date of this AD, replace P/N 1159SCH216-3 landing gear selector valves with either a P/N 1159SCH216-1 or a P/N 1159SCH216-5 valve. Remove the placard and the Airplane Flight Manual Supplement added in section (1) when either of the replacement valves is installed. An equivalent method of compliance may be approved by the Chief, Engineering and Manufacturing Branch, FAA Southern Region. NOTE: Information concerning replacement selector valves may be obtained from Gulfstream American Corporation Customer Bulletin No. 305, amendment No. 1, January 15, 1981. This amendment is effective March 27, 1981. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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