{"id":"F2008L03403","name":"AD/BEECH 35/73 - Circuit Breaker Toggle Switches","slug":"ad-beech-35-73-circuit-breaker-toggle-switches","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":120401,"registerId":"commonwealth-F2008L03403-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Beechcraft 35 (Bonanza) Series Aeroplane","sectionType":"division","heading":"Beechcraft 35 (Bonanza) Series Aeroplanes","content":"### Beechcraft 35 (Bonanza) Series Aeroplanes\n\n| AD/BEECH 35/73 | Circuit Breaker Toggle Switches | 10/2008 |\n| -------------- | ------------------------------- | ------- |\n\n```html\n

Applicability:

Aeroplane models and serial numbers listed in Table 1 that have any circuit breaker toggle switch with a part number (P/N) 35-380132-1 through 35-380132-53 installed.

Table 1

Model

Serial Number Range

V35B

D-9069 through D-10403

Requirement:

1. Unless previously accomplished, replace all circuit breaker toggle switches P/N 35-380132-1 through 35-380132-53 with an improved circuit breaker toggle switch, P/N 35-380132-61 through 35-380132-113, as applicable, as specified in Raytheon Aircraft Company (RAC) Recommended Service Bulletin SB 24-3735, Issued: August 2005.

2. Circuit breaker toggle switches P/N 35-380132-1 through 35-380132-53 may not be installed on any aeroplane as an initial fit or as a replacement spare.

Later revisions of the above SB, approved by the United States Federal Aviation Administration (FAA) as an Alternate Method of Compliance (AMOC) to FAA AD 2008-13-17, are considered acceptable for compliance with the equivalent Requirements of this Directive.

Note: FAA AD 2008-13-17 Amdt 39-15580 refers.

Compliance:

For Requirement 1 - Within the next 24 months after the effective date of this Directive.

For Requirement 2 - Before further flight after the circuit breaker toggle switch has been replaced in accordance with Requirement 1.

This Airworthiness Directive becomes effective on 25 September 2008.

Background:

The FAA has received reports of certain circuit breaker toggle switches used in various electrical systems throughout Beech F33, F33A, F33C, G33, V35B, A36, A36TC, B36TC, 95-B55, D55, E55, A56TC, 58, 58P, 58TC, G58 and 77 model aeroplanes overheating. Failure of the circuit breaker toggle switch could result in smoke in the cockpit and the inability to turn off the switch.

\n```\n\n| | This Directive follows the intent of the FAA Directive, requiring the replacement of circuit breaker toggle switches with a P/N 35-380132-1 through 35-380132-53. However, it is revised to allow prior accomplishment, as the RAC service bulletin was issued in 2005 and may have already been accomplished. The Directive also extends compliance by 13 months until 25 September 2010, the final compliance time required by the FAA was 6 August 2009. |\n| --- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| | A draft version of this Directive was posted for public comment on the Civil Aviation Safety Authority (CASA) internet site on 9 July 2008. As of the date that this Directive was made, no comments or objections have been received by CASA. |\n\n![](image.001.png)\n\nJames Coyne \nDelegate of the Civil Aviation Safety Authority\n\n8 August 2008","sortOrder":0},{"sectionNumber":"AD/BEECH 35/73","sectionType":"part","heading":"AD/BEECH 35/73","content":"## AD/BEECH 35/73","sortOrder":1},{"sectionNumber":"Circuit Breaker Toggle Switches","sectionType":"part","heading":"Circuit Breaker Toggle Switches","content":"## Circuit Breaker Toggle Switches","sortOrder":2},{"sectionNumber":"10/2008","sectionType":"part","heading":"10/2008","content":"## 10/2008","sortOrder":3}],"analysis":{"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 focused on specific circuit breaker switches in specific Beechcraft models. While it references the FAA's broader applicability (covering additional Beechcraft models like F33, A36, Baron series), the Australian directive deliberately limits applicability to only the V35B model. The extension of compliance time and recognition of prior accomplishment are administrative accommodations, not scope expansion."},"complexity_factors":["Specific part number ranges (35-380132-1 through 35-380132-53) requiring careful cross-checking against aircraft records","Reference to external technical document (Raytheon Service Bulletin SB 24-3735) for compliance procedures","Nested applicability criteria: model type AND serial number range AND specific part numbers installed","Two separate compliance deadlines with different triggers (24-month window vs. before next flight)","Incorporation by reference of FAA AD 2008-13-17 and AMOC (Alternate Method of Compliance) provisions","Exception for prior accomplishment if service bulletin already followed"],"plain_english_summary":"This AD mandates replacement of faulty circuit breaker toggle switches on Beechcraft V35B aeroplanes (S/N D-9069–D-10403) fitted with part numbers 35‑380132‑1 through ‑53. Owners/operators must fit the improved switches (35‑380132‑61 through ‑113) by 25 September 2010 and must not reinstall the old units. The rule addresses reports of overheating switches that can cause cockpit smoke and loss of electrical shutdown capability — a significant flight safety risk."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This Directive follows the FAA's intent but revises the FAA position by allowing prior accomplishment of the service bulletin and by extending the compliance window. CASA extended the compliance period (Requirement 1) to 24 months from the directive (effective 25 Sep 2008), yielding a final compliance date of 25 Sep 2010, whereas the FAA's final compliance time was 6 Aug 2009. The Directive also accepts later FAA-approved revisions of RAC SB 24-3735 as acceptable alternate methods of compliance."},"complexity_factors":["Narrow technical scope: specific aircraft model (V35B) and serial-number range listed in Table 1","Multiple part-number ranges to identify (old P/Ns 35-380132-1 to -53; new P/Ns 35-380132-61 to -113)","Prescriptive compliance action tied to a manufacturer service bulletin (RAC SB 24-3735)","Fixed compliance timing (24 months from effective date) plus an explicit prohibition on reinstalling old P/Ns","Regulatory interaction: references FAA AD 2008-13-17 and permits later FAA-approved SB revisions as alternate method of compliance (AMOC)","Administrative requirement to verify prior accomplishment (records checks) because prior accomplishment is allowed","Low substantive discretion for operators (replace or not), but some regulatory discretion exists via accepted AMOCs"],"plain_english_summary":"Owners/operators of specified Beechcraft 35 (V35B) aeroplanes fitted with circuit breaker toggle switches P/N 35-380132-1 through -53 must replace them with improved switches P/N 35-380132-61 through -113 per Raytheon (RAC) Service Bulletin SB 24-3735, within 24 months of the directive (effective 25 Sep 2008). Aircraft owners bear the replacement cost and compliance burden; the directive bars reinstalling the old P/Ns and accepts later FAA-approved service-bulletin revisions as alternate compliance, and it extends the compliance window relative to the FAA deadline."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-35-73-circuit-breaker-toggle-switches","history":"/api/acts/ad-beech-35-73-circuit-breaker-toggle-switches/history","analysis":"/api/acts/ad-beech-35-73-circuit-breaker-toggle-switches/analysis","conflicts":"/api/acts/ad-beech-35-73-circuit-breaker-toggle-switches/conflicts","importantCases":"/api/acts/ad-beech-35-73-circuit-breaker-toggle-switches/important-cases","documents":"/api/acts/ad-beech-35-73-circuit-breaker-toggle-switches/documents"}}