{"id":"F2005L03942","name":"AD/DO 328/20 - Circuit Breaker Panels 10VE & 11VE Sealing","slug":"ad-do-328-20-circuit-breaker-panels-10ve-11ve-sealing","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":39790,"registerId":"commonwealth-F2005L03942-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Dornier 328 Series Aeroplanes","sectionType":"division","heading":"Dornier 328 Series Aeroplanes","content":"### Dornier 328 Series Aeroplanes\n\n| AD/DO 328/20 | Circuit Breaker Panels 10VE & 11VE Sealing | 1/2006 |\n| ------------ | ------------------------------------------ | ------ |\n\n```html\n

Applicability:

Model 328-100 aeroplanes with the following circuit breaker panel installed:

Panel 10VE
Panel 11VE

All serial numbers up to and including 131
All serial numbers up to and including 133

Requirement:

1. If not previously accomplished, carryout the following in accordance with the Accomplishment Instructions of Dornier Service Bulletins SB-328-31-016, dated 2 April 1997:

a. Perform a visual inspection of circuit breaker panels 10VE and 11VE for damage or signs of burning.

b. If damage or burning is not found during the Requirement 1.a. inspection, install additional sealing at the contact points of the panel back lighting wires.

2. If damage or evidence of burning is found during the Requirement 1.a. inspection, replace the panel and install additional sealing at the contact points of the panel back lighting wires in accordance with the Accomplishment Instructions of Dornier Service Bulletins SB-328-31-016, dated 2 April 1997.

Note: LBA AD 97-136 refers.

Compliance:

For Requirement 1 - Within 30 days after the effective date of this Directive.

For Requirement 2 - Before further flight after the Requirement 1.a. inspection.

This Airworthiness Directive becomes effective on 19 January 2006.

Background:

This Directive requires the inspection of circuit breaker panels for damaged caused by the accumulation of moisture and condensation, the installation of additional sealing and, if necessary, the replacement of damaged panels.

\n```\n\n![](image.001.png) \nJames Coyne \nDelegate of the Civil Aviation Safety Authority\n\n29 November 2005","sortOrder":0},{"sectionNumber":"AD/DO 328/20","sectionType":"part","heading":"AD/DO 328/20","content":"## AD/DO 328/20","sortOrder":1},{"sectionNumber":"Circuit Breaker Panels 10VE & 11VE Seali","sectionType":"part","heading":"Circuit Breaker Panels 10VE & 11VE Sealing","content":"## Circuit Breaker Panels 10VE & 11VE Sealing","sortOrder":2},{"sectionNumber":"1/2006","sectionType":"part","heading":"1/2006","content":"## 1/2006","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive implements the inspection and sealing actions described in the manufacturer service bulletin and addresses moisture/condensation damage to specified circuit breaker panels. It does not expand the scope beyond that original safety focus (inspection, additional sealing, and replacement if damaged) nor add new mandatory obligations outside the SB’s corrective actions. Therefore it aligns with, rather than broadens, the original intent."},"complexity_factors":["Short document with a single clear safety focus (circuit breaker panels 10VE & 11VE)","Two main conditional requirements: (1) inspect and seal if no damage, (2) replace and seal if damage found","Single external procedural reference: Dornier Service Bulletin SB-328-31-016 (2 April 1997)","Applicability limits by model and serial‑number (Panel 10VE SN ≤ 131; Panel 11VE SN ≤ 133)","Simple compliance timeline: 30 days for inspection/sealing; replacement before further flight if damage found","One cross-reference note to LBA AD 97-136"],"plain_english_summary":"**What this directive does (mechanics)\n\n- Applies to Dornier 328-100 aeroplanes that have circuit breaker Panel 10VE (serial numbers up to and including 131) or Panel 11VE (serial numbers up to and including 133) installed. (Applicability)\n- Requires a visual inspection of those circuit breaker panels for damage or signs of burning, following the Accomplishment Instructions in Dornier Service Bulletin SB-328-31-016 dated 2 April 1997. (Requirement 1.a)\n- If no damage or burning is found, the operator must install additional sealing at the contact points of the panel back‑lighting wires. (Requirement 1.b)\n- If damage or burning is found, the operator must replace the affected panel and install the additional sealing. The replacement must be done before further flight. (Requirement 2)\n- Compliance timing: the inspection and any required sealing must be done within 30 days after the directive’s effective date; any panel replacement required because of damage must be completed before the aeroplane flies again. (Compliance)\n\n**Who is affected**\n\n- Owners and operators of Dornier 328-100 aeroplanes fitted with Panel 10VE (SN ≤ 131) or Panel 11VE (SN ≤ 133).\n- Maintenance organisations and licensed aircraft maintenance engineers who will perform the inspection, sealing and any panel replacement.\n\n**Why it matters (stated purpose and immediate effect)\n\n- The stated safety concern is panels damaged by moisture/condensation that can lead to burning; the directive instructs inspection, sealing of back‑lighting wire contact points to prevent moisture ingress and replacement of damaged panels. (Background; Requirements)\n\n**Practical effects, incentives and trade-offs**\n\n- Who pays: the aircraft owner/operator bears the cost of the inspection, the sealing work and any panel replacement and associated downtime. (Requirements & Compliance)\n- Who decides and how it is implemented: maintenance personnel must follow the Dornier Service Bulletin (SB-328-31-016) instructions; CASA enforces compliance by making the directive mandatory. (Reference to service bulletin and directive compliance)\n- Behaviour changes: operators must schedule a short inspection within 30 days; if damage is present the aircraft is grounded until replacement and sealing are completed (replacement required before further flight). This changes maintenance scheduling and may cause short‑term operational disruption.\n- Costs vs benefits: the immediate cost is inspection labour, sealing materials and possible panel replacement and downtime. The intended benefit is reduced risk of circuit‑breaker panel burning and associated electrical/fire hazards.\n- Implementation risks and constraints: availability of replacement panels or qualified maintenance resources may cause longer downtime for some operators; following the specific service bulletin is required to meet the directive.\n- Effects on private enterprise: maintenance providers and parts suppliers will perform and be paid for the work; operators incur direct costs and potential short-term loss of aircraft availability.\n\n**References and cross-links**\n\n- The required work is to be done in accordance with Dornier Service Bulletin SB-328-31-016 (dated 2 April 1997). The directive also notes LBA AD 97-136 as related material.\n\n(Structure cited: Applicability; Requirement 1 (a & b); Requirement 2; Compliance; Background.)"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, targeted airworthiness directive addressing a specific known defect in specific aircraft. The scope remains precisely limited to the moisture/sealing issue in the identified circuit breaker panels, with no evidence of scope creep beyond the original safety purpose."},"complexity_factors":["Single, clearly defined applicability (specific aircraft model and serial number ranges)","Straightforward two-step requirement structure (inspect, then either seal or replace)","Only one external reference (Dornier Service Bulletin SB-328-31-016)","Simple conditional logic (if damage found → replace; if no damage → seal only)","No defined terms section or interpretation provisions","Clear, specific compliance deadlines (30 days for inspection; before next flight for replacement)","Minimal cross-referencing (only one note referencing German aviation authority LBA AD 97-136)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by the Civil Aviation Safety Authority (CASA) for aircraft operators.\n\n**What it does:**\nOrders owners and operators of specific Dornier 328-100 aeroplanes to inspect and fix a known electrical safety problem. The circuit breaker panels (10VE and 11VE) on these aircraft can suffer moisture damage and burning, which creates fire risks.\n\n**Who it affects:**\n- **Aircraft:** Dornier 328-100 model planes with specific circuit breaker panels\n- **Serial numbers affected:**\n - Panel 10VE: serial numbers up to and including 131\n - Panel 11VE: serial numbers up to and including 133\n\n**What must be done:**\n1. **Within 30 days:** Inspect the panels for damage or burn marks\n - If **no damage found:** Install extra sealing around the panel's back-lighting wires\n - If **damage found:** Replace the entire panel AND install the extra sealing before flying again\n\n**Why it matters:**\nMoisture and condensation were building up in these panels, causing electrical damage and potential fire hazards. This directive prevents in-flight electrical failures by forcing operators to check for existing damage and add protective sealing to stop future moisture problems.\n\n**Key deadline:** The directive took effect on **19 January 2006**."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-do-328-20-circuit-breaker-panels-10ve-11ve-sealing","history":"/api/acts/ad-do-328-20-circuit-breaker-panels-10ve-11ve-sealing/history","analysis":"/api/acts/ad-do-328-20-circuit-breaker-panels-10ve-11ve-sealing/analysis","conflicts":"/api/acts/ad-do-328-20-circuit-breaker-panels-10ve-11ve-sealing/conflicts","importantCases":"/api/acts/ad-do-328-20-circuit-breaker-panels-10ve-11ve-sealing/important-cases","documents":"/api/acts/ad-do-328-20-circuit-breaker-panels-10ve-11ve-sealing/documents"}}