AD 77-15-10
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Filotechnica Salmoiraghi | Airspeed Indicators | Airworthiness Directives; FILOTECNICA SALMOIRAGHI (AERITALIA S.p.A.): Applies To Airspeed Indicators, Serial Numbers 3800 and Below |
| appliance | Filotechnica Salmoiraghi | Airspeed Indicators | Airworthiness Directives; FILOTECNICA SALMOIRAGHI (AERITALIA S.p.A.): Applies To Airspeed Indicators, Serial Numbers 3800 and Below |
Unsafe Condition
Possibility of erroneous airspeed indications due to improper calibration of airspeed indicators.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect airspeed indicators for proper calibration ensuring differential pressure values and tolerances conform to SAE AS-391B Tables I and II. Scrap indicators found not properly calibrated.
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Compliance Time
within the next 25 hours time in service after the effective date of this AD
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Affected Aircraft
FILOTECNICA SALMOIRAGHI (AERITALIA S.p.A.) Airspeed Indicators, serial numbers 3800 and below, with specified part numbers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Airspeed Indicators
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_77-15-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-15-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; FILOTECNICA SALMOIRAGHI (AERITALIA S.p.A.): Applies To Airspeed Indicato...Show more Subject: Airspeed Indicators Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/04/1977 Make: Filotechnica Salmoiraghi Model: Airspeed Indicators Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 77-15-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2982 AD NUMBER: 77-15-10 SUBJECT HEADING: Airworthiness Directives; FILOTECNICA SALMOIRAGHI (AERITALIA S.p.A.): Applies To Airspeed Indicators, Serial Numbers 3800 and Below ACTION: SUMMARY: DATES: Effective August 4, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-15-10 FILOTECNICA SALMOIRAGHI (AERITALIA S.p.A.): Amendment 39-2982. Applies to airspeed indicators, serial numbers 3800 and below, with part numbers - P/N 8.039.003 P/N 8.039.608.1 8.039.008 8.039.703 8.039.008.1 8.039.708 8.039.503 8.039.708.1 8.039.508 8.039.808 8.039.508.1 8.039.808.1 8.039.603 8.039.408 8.039.608 8.039.408.1 Compliance is required within the next 25 hours time in service after the effective date of this AD, unless already accomplished. To prevent the possibility of erroneous airspeed indications, accomplish the following: (a) Inspect the affected airspeed indicators for proper calibration by ensuring that the differential pressure values and tolerances for the indicator's airspeed range conform to those set forth in Tables I and II of SAE Aeronautical Standard AS-391B "Airspeed Indicator (Pitot Static)," dated December 15, 1954, or an FAA-approved equivalent. (b) If an airspeed indicator inspected in accordance with paragraph (a) of this AD is found not to be in proper calibration, scrap it. This amendment becomes effective August 4, 1977. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_77-15-10.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 77-15-10 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; FILOTECNICA SALMOIRAGHI (AERITALIA S.p.A.): Applies To Airspeed Indicato...Show more Subject: Airspeed Indicators Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 08/04/1977 Make: Filotechnica Salmoiraghi Model: Airspeed Indicators Product Type: Appliance Product Subtype: Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 77-15-10 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-2982 AD NUMBER: 77-15-10 SUBJECT HEADING: Airworthiness Directives; FILOTECNICA SALMOIRAGHI (AERITALIA S.p.A.): Applies To Airspeed Indicators, Serial Numbers 3800 and Below ACTION: SUMMARY: DATES: Effective August 4, 1977. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 77-15-10 FILOTECNICA SALMOIRAGHI (AERITALIA S.p.A.): Amendment 39-2982. Applies to airspeed indicators, serial numbers 3800 and below, with part numbers - P/N 8.039.003 P/N 8.039.608.1 8.039.008 8.039.703 8.039.008.1 8.039.708 8.039.503 8.039.708.1 8.039.508 8.039.808 8.039.508.1 8.039.808.1 8.039.603 8.039.408 8.039.608 8.039.408.1 Compliance is required within the next 25 hours time in service after the effective date of this AD, unless already accomplished. To prevent the possibility of erroneous airspeed indications, accomplish the following: (a) Inspect the affected airspeed indicators for proper calibration by ensuring that the differential pressure values and tolerances for the indicator's airspeed range conform to those set forth in Tables I and II of SAE Aeronautical Standard AS-391B "Airspeed Indicator (Pitot Static)," dated December 15, 1954, or an FAA-approved equivalent. (b) If an airspeed indicator inspected in accordance with paragraph (a) of this AD is found not to be in proper calibration, scrap it. This amendment becomes effective August 4, 1977. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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