AD 69-20-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Gulfstream Aerospace Corporation | G-159 | Airworthiness Directives; GRUMMAN Model G-159 Aircraft |
Unsafe Condition
Fuel filter blockage due to ice and possible engine flameout.
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Required Actions
Install a fuel temperature indicator on each engine fuel system per Grumman Gulfstream Service Change 114, mark the gauge with red radial lines and a green arc, and install a placard adjacent to the indicator. Alternatively, use a fuel additive per AC 20-29A with an AFM supplement or Rev 21 AFM.
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Compliance Time
within the next 50 hours' time in service after the effective date of this airworthiness directive as amended
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Affected Aircraft
GRUMMAN Model G-159 aircraft as specified in Amendment 39-848 and 39-924
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Federal Register Abstract
Fuel Temperature Indicator
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_69-20-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 69-20-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; GRUMMAN Model G-159 Aircraft Subject: Fuel Temperature Indicator Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/23/1970 Make: Gulfstream Aerospace Corporation Model: G-159 Product Type: Aircraft Product Subtype: Large Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 69-20-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-924 AD NUMBER: 69-20-03 SUBJECT HEADING: Airworthiness Directives; GRUMMAN Model G-159 Aircraft ACTION: SUMMARY: DATES: Effective January 23, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 69-20-03 GRUMMAN: Amdt. 39-848, as amended by Amdt. 39-924, applies to all G-159 aircraft. Compliance required within the next 50 hours' time in service after the effective date of this airworthiness directive as amended. To prevent fuel filter blockage due to ice and possible engine flameout, accomplish the following or an equivalent approved by the Chief, Engineering and Manufacturing Branch, Southern Region. (a) Install a fuel temperature indicator on each engine fuel system in accordance with Grumman Gulfstream Service Change 114, with Amendment 1 or later approved revision. (b) Mark gage with red radial lines at +5 degrees C and +54 degrees C and a green arc from +5 degrees C to +54 degrees C. (c) Install a placard adjacent to fuel temperature indicator which reads as follows: "Caution See AFM for use of fuel filter heater." The use of a fuel additive as outlined in Advisory Circular 20-29A along with an appropriate Airplane Flight Manual supplement or Revision 21 to the G-159 Airplane Flight Manual is considered an equivalent means for showing compliance with paragraphs (a), (b), and (c). Amendment 39-848 effective October 5, 1969. This amendment (39-924) becomes effective January 23, 1970. FOOTER:
Document Text
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AD Final Rules - DRS_69-20-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 69-20-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; GRUMMAN Model G-159 Aircraft Subject: Fuel Temperature Indicator Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 01/23/1970 Make: Gulfstream Aerospace Corporation Model: G-159 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: 69-20-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-924 AD NUMBER: 69-20-03 SUBJECT HEADING: Airworthiness Directives; GRUMMAN Model G-159 Aircraft ACTION: SUMMARY: DATES: Effective January 23, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 69-20-03 GRUMMAN: Amdt. 39-848, as amended by Amdt. 39-924, applies to all G-159 aircraft. Compliance required within the next 50 hours' time in service after the effective date of this airworthiness directive as amended. To prevent fuel filter blockage due to ice and possible engine flameout, accomplish the following or an equivalent approved by the Chief, Engineering and Manufacturing Branch, Southern Region. (a) Install a fuel temperature indicator on each engine fuel system in accordance with Grumman Gulfstream Service Change 114, with Amendment 1 or later approved revision. (b) Mark gage with red radial lines at +5 degrees C and +54 degrees C and a green arc from +5 degrees C to +54 degrees C. (c) Install a placard adjacent to fuel temperature indicator which reads as follows: "Caution See AFM for use of fuel filter heater." The use of a fuel additive as outlined in Advisory Circular 20-29A along with an appropriate Airplane Flight Manual supplement or Revision 21 to the G-159 Airplane Flight Manual is considered an equivalent means for showing compliance with paragraphs (a), (b), and (c). Amendment 39-848 effective October 5, 1969. This amendment (39-924) becomes effective January 23, 1970. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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