{"id":"F2021L01192","name":"AD/CESSNA 210/76 Fuel Quantity Transmitter","slug":"ad-cessna-210-76-fuel-quantity-transmitter","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":102049,"registerId":"commonwealth-F2021L01192-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Textron Aviation (Cessna) 210 Series Aer","sectionType":"part","heading":"Textron Aviation (Cessna) 210 Series Aeroplanes","content":"# Textron Aviation (Cessna) 210 Series Aeroplanes\n\n| AD/CESSNA 210/76 | Fuel Quantity Transmitter | 17/2021 |\n| ---------------- | ------------------------- | ------- |\n\n| Applicability: | The AD applies to the following Textron Aviation (formerly Cessna) aircraft models:210G, 210H, 210J (Serial Number 21058819 through 21059199),210M, 210N (Serial Numbers 21062274 through 21063025),T210G, T210H, T210J (Serial Number T210-0198 through T210-0454 and 21058140),T210M, T210N (Serial Numbers 21062274 through 21063025), andP210N (Serial Numbers P21000001 through P21000141) aeroplanes.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | Review the aircraft’s maintenance records to determine whether those records show compliance with:The United States of America Federal Aviation Administration (FAA) AD 78-26-12, as in force from time to time; orCASA AD/CESSNA 210/35, as in force on the day prior to its cancellation.Note 1: This determination may be accomplished and certified for by the registered operator, provided that they hold at least a private pilot’s licence.Note 2: The words “as in force from time to time” require compliance with the most recent version of the referenced document.2. For aircraft where the aircraft’s maintenance records do not show compliance with either Requirement 1.a. or 1.b. - Carry out the actions detailed in FAA AD 78-26-12, as in force from time to time.Note 3: For aircraft where the aircraft’s maintenance records show compliance with Requirement 1.a. or 1.b. - no further action is required.Note 4: Cessna Service Letter SE78-69 relates to the subject of this AD. |\n| Compliance:    | For Requirement 1 - Within 28 days after the commencement date of this AD.For Requirement 2 - Before further flight.Note 5: The aircraft may be flown to a location where this inspection may be accomplished, provided the pilot visually verifies through the fuel filler neck that adequate fuel is available to complete the flight.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |\n\n| Commencement: | This AD commences on 3 September 2021.                                                                                                                                                                                                                                                                                                                                                                                                                                      |\n| ------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Background:   | The possibility exists that one or both fuel quantity transmitters, due to excessive friction at the transmitter float arm pivot, could cause incorrect fuel quantity indications.CASA has previously addressed the potential unsafe condition through AD/CESSNA 210/35 - Fuel Quantity Transmitter - Inspection and Replacement. AD/CESSNA 210/35 was cancelled in 1980 with no justification available. FAA AD 78-26-12 and Cessna Service Letter SE78-69 remain current. |\n\n![Text\nDescription automatically generated](image.001.jpeg)\n\nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n24 August 2021","sortOrder":0},{"sectionNumber":"AD/CESSNA 210/76","sectionType":"part","heading":"AD/CESSNA 210/76","content":"## AD/CESSNA 210/76","sortOrder":1},{"sectionNumber":"Fuel Quantity Transmitter","sectionType":"part","heading":"Fuel Quantity Transmitter","content":"## Fuel Quantity Transmitter","sortOrder":2},{"sectionNumber":"17/2021","sectionType":"part","heading":"17/2021","content":"## 17/2021","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"This AD reimposes a mandatory compliance check and corrective requirement for fuel quantity transmitters on specific Cessna 210 models after an earlier CASA AD (AD/CESSNA 210/35) had been cancelled. It narrows application to listed models/serial numbers and sets firm timelines (records review within 28 days; corrective action before further flight). It also permits certified operators (private pilot min.) to validate records and references the FAA AD as the required corrective standard 'as in force from time to time' (Applicability; Requirement; Compliance; Background)."},"complexity_factors":["Cross-reference to an external FAA AD required 'as in force from time to time' — creates ongoing tracking of updates to FAA AD 78‑26‑12 (Requirement, Note 2).","Applicability is serial‑number and model specific, requiring operators to verify exact model/serial applicability (Applicability).","Two‑stage compliance path: an initial records review within 28 days, and mandatory corrective work before further flight if records lack compliance (Requirement; Compliance).","Delegation: a registered operator with at least a private pilot licence may certify the records check, shifting some compliance responsibility from maintenance organisations to operators (Requirement, Note 1).","Operational allowance to ferry the aircraft to a location for inspection if the pilot visually verifies sufficient fuel — limited conditional permission that requires judgment (Compliance, Note 5).","Historical gap: the prior CASA AD/CESSNA 210/35 was cancelled (Background), so operators may face traceability or record‑keeping uncertainty when determining past compliance."],"plain_english_summary":"This AD requires owners/operators of specified Textron (Cessna) 210‑series aeroplanes to check maintenance records for compliance with FAA AD 78‑26‑12 or the earlier CASA AD/CESSNA 210/35, and if no record exists to carry out the FAA AD’s corrective actions before further flight. It responds to a risk that fuel quantity transmitters may give incorrect fuel readings due to excessive friction.\n\nRegistered operators holding at least a private pilot licence may certify the records check. The records review is due within 28 days; repairs must be completed before further flight, and operators bear inspection and repair costs."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific mechanical defect in fuel quantity transmitters for a defined aircraft series. It does not expand beyond the original safety purpose of ensuring accurate fuel indication."},"complexity_factors":["Multiple serial number ranges and model variants create applicability complexity (7 distinct model/serial combinations)","Cross-references to external documents: FAA AD 78-26-12 and cancelled CASA AD/CESSNA 210/35","Conditional compliance logic: different actions required depending on maintenance record findings","Temporal compliance requirements: 28-day window for records review vs 'before further flight' for corrective action","Permitted flight exception with specific condition (visual fuel verification through filler neck)"],"plain_english_summary":"This AD requires owners/operators of certain Cessna 210-series aircraft to address a known defect where fuel quantity transmitters can give false readings due to friction at the float-arm pivot, risking fuel exhaustion and forced landings. \n\nWithin 28 days operators must verify compliance with prior FAA/CASA actions; if not already done, the corrective work in FAA AD 78-26-12 must be completed before further flight (limited ferry flight allowed with a visual fuel check)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-210-76-fuel-quantity-transmitter","history":"/api/acts/ad-cessna-210-76-fuel-quantity-transmitter/history","analysis":"/api/acts/ad-cessna-210-76-fuel-quantity-transmitter/analysis","conflicts":"/api/acts/ad-cessna-210-76-fuel-quantity-transmitter/conflicts","importantCases":"/api/acts/ad-cessna-210-76-fuel-quantity-transmitter/important-cases","documents":"/api/acts/ad-cessna-210-76-fuel-quantity-transmitter/documents"}}