{"id":"F2005L01339","name":"AD/AIRCON/13 Amdt 3 - Kelly Aerospace Fuel Regulator Shutoff Valves & Cabin Heaters","slug":"ad-aircon-13-amdt-3-kelly-aerospace-fuel-regulator-shutoff-valves-cabin-heaters","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":35115,"registerId":"commonwealth-F2005L01339-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Airconditioning Equipment","sectionType":"division","heading":"Airconditioning Equipment","content":"### Airconditioning Equipment\n\n| AD/AIRCON/13 Amdt 3 | Kelly Aerospace Fuel RegulatorShutoff Valves & Cabin Heaters | 7/2005 |\n| ------------------- | ------------------------------------------------------------ | ------ |\n\n```html\n

Applicability:

Kelly Aerospace part number (P/N) 14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04, C23D04 or P23D04 fuel regulator shutoff valve used with Kelly Aerospace B1500, B2030, B2500, B3040, B3500, B4050, or B4500 B-Series combustion heaters.

Note 1: The B1500, B2030, B2500, B3040, B3500, B4050, or B4500 B-Series combustion heaters were previously manufactured by Janitrol, C&D Airmotive Products, FL Aerospace, and Midland-Ross Corporation.

Note 2: B-Series combustion heater are installed on, but not limited to the following aircraft makes and models. Aircraft not on this list that have the heater installed through other methods are still affected by this AD.

Manufacturer

Aircraft Models and Series

Bombardier

CL-215, CL-215T, and CLT-415.

Cessna

208, T303, 310F, 310G, 310H, 310I, 310J, 310K, 310L, 310N, 310P, 310Q, 320C, 320D, 320E, 320F, 337
Series, 340, 340A, 414, 414A, 421, 421A, 421B, and 421C.

Piper

PA-23 Series, PA-30, PA-31 Series, PA-34 Series, PA-39, and PA-44 Series.

Raytheon

95-B55 Series, 58, 58TC, 58P, 60, A60, and 76.

Requirement:

1. Visually inspect or pressure test the fuel regulator shutoff valve for any signs of fuel leaks using procedures described in Kelly Aerospace Power Systems (KAPS) Service Bulletin (SB) No. A-107A dated 06 September 2002 or later FAA approved revisions.

2. If no fuel leaks or no signs of fuel stains are found during each inspection as per Requirement 1, make an aircraft log book entry with the date of inspection. Use the procedures described in KAPS SB No. A-107A or later FAA approved revisions.

\n```\n\n| | 3. If any signs of fuel leaks or any signs of fuel stains are found during any inspection as per Requirement 1 of this AD, replace the valve with a new valve of appropriate part number (P/N) that has a manufacturer’s date code of 02/02 or later.For Piper PA-31-350 model aircraft, replace P/N A23D04-7.5 valve with P/N P23D04-7.5.Use the procedures described in KAPS SB No. A-107A or later FAA approved revisions, Piper Vendor Service Publication VSP-150 dated 31 January 2003 or later FAA approved revisions and the applicable maintenance manuals.4. Only install a fuel regulator shutoff valve with a manufacture date code of 02/02 or later.Alternative Method of Compliance to this AD.5. Disable the heater as follows, subject to the Minimum Equipment List (MEL) requirements or Permissible Unserviceabilities (PU) as per provisions of CAR 37 if applicable to the aircraft.i. Cap the fuel supply line upstream of the fuel regulator and shutoff valve;ii. Disconnect the electrical power and ensure that the connections are properly secured to reduce the possibility of electrical spark or structural damage;iii. Inspect and test to ensure that the cabin heater system is disabled;iv. Ensure that no other aircraft system is affected by this action;v. Ensure there are no fuel leaks; andvi. Fabricate a placard with the words: ‘‘System Inoperative’’. Install this placard at the heater control valve within the pilot’s clear view.Note 3: US FAA Airworthiness Directive 2004-25-16 R1 Amendment 39-14076 dated 06 May 2005 refers. |\n| ----------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Compliance: | 1. Unless accomplished within the last 75 hours Aircraft Time In Service (TIS) before the effective date of AD/AIRCON/13 Amendment 2:-Visually inspect or pressure test within the next 25 hours Aircraft TIS after the effective date of this AD. Repetitively inspect thereafter at intervals not to exceed 100 hours aircraft TIS or 12 months, whichever occurs first.2. Before further flight after each inspection as per Requirement 1 of this AD. |\n\n| | 3. Before further flight after the inspection as per Requirement 1, where any fuel leak was found. Carryout and continue inspection and documentation per Requirements 1 and 2.4. After the effective date of this AD.5. If you choose this option, you must do it before the next required inspection specified in requirement 1 of this AD. To bring the heater back into service, you must do the actions specified in requirement 1 to 4 of this AD. |\n| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| | This Amendment becomes effective on 7 July 2005. |\n| Background: | The Amendment 2 of this AD required marking of valve cover after each satisfactory inspection (i.e. when no leak is found). Repetitive nature of the inspection rendered this requirement not feasible. Current Amendment deletes the valve marking requirement but retains the log book entry requirement.There are continued reports of fuel leakage from fuel regulator shutoff valve used with Kelly Aerospace B-Series combustion heaters. Fuel leakage in aircraft could result in an aircraft fire and / or loss of aircraft. The actions specified in this Directive address the identified unsafe condition associated with fuel leakage and fire.Amendment 2 also provided clarification of aspects relating to the disabling of the heater and became effective on 14 April 2005.Amendment 1 of this AD became effective on 12 January 2005.The original issue of this AD became effective on 1 November 2001. |\n\n![](image.001.png) \nJames Coyne \nDelegate of the Civil Aviation Safety Authority\n\n27 May 2005","sortOrder":0},{"sectionNumber":"AD/AIRCON/13 Amdt 3","sectionType":"part","heading":"AD/AIRCON/13 Amdt 3","content":"## AD/AIRCON/13 Amdt 3","sortOrder":1},{"sectionNumber":"Kelly Aerospace Fuel RegulatorShutoff Va","sectionType":"part","heading":"Kelly Aerospace Fuel RegulatorShutoff Valves & Cabin Heaters","content":"## Kelly Aerospace Fuel Regulator \nShutoff Valves & Cabin Heaters","sortOrder":2},{"sectionNumber":"7/2005","sectionType":"part","heading":"7/2005","content":"## 7/2005","sortOrder":3},{"sectionNumber":"Manufacturer","sectionType":"subdivision","heading":"Manufacturer","content":"#### Manufacturer","sortOrder":4},{"sectionNumber":"Aircraft Models and Series","sectionType":"subdivision","heading":"Aircraft Models and Series","content":"#### Aircraft Models and Series","sortOrder":5}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"Amendment 3 does not expand the safety scope beyond the original intent (addressing fuel leakage from certain Kelly Aerospace shutoff valves). Instead, it narrows administrative burden by deleting the prior requirement to mark valve covers while retaining substantive safety controls (inspection, replacement, date-code requirement, and an alternative disabling option). The directive remains focused on detecting and removing leaking valves and preventing installation of older-date-code valves; it does not add unrelated obligations or new categories of affected equipment."},"complexity_factors":["Multiple specific part numbers listed (9 part numbers) increasing applicability checks","Applies across many aircraft makes/models (Bombardier, Cessna, Piper, Raytheon and others), so operators must determine applicability case-by-case","Repetitive inspection regime with conditional timing (initial 25 hours if not inspected within prior 75 hours TIS; thereafter every 100 hours TIS or 12 months)","Conditional replacement requirement triggered by inspection results (replace before further flight if leak found)","Requirement to use external documents (KAPS SB A-107A and Piper VSP-150 or later FAA-approved revisions) — introduces dependency on external revisions","Requirement to verify manufacture date codes (must be 02/02 or later) for replacements and future installations","Alternative Method of Compliance with six discrete steps and links to MEL/PU rules (CAR 37) — adds an operationally significant conditional path","History of amendments (original AD plus Amendments 1–3) and a removed prior requirement (valve marking deleted) — some procedural history to track"],"plain_english_summary":"**What this directive does (mechanically):**\n\n- Applies to specific Kelly Aerospace fuel regulator shutoff valve part numbers (14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04, C23D04, P23D04) when used with Kelly Aerospace B-Series combustion cabin heaters (B1500, B2030, B2500, B3040, B3500, B4050, B4500). It covers those heaters installed on a broad list of aircraft makes/models (Bombardier CL series, many Cessna models, Piper PA series, Raytheon models) and other aircraft that have the heater installed by other methods.\n\n- Requirement 1: Operators must visually inspect or pressure-test the listed fuel-regulator shutoff valve for fuel leaks or signs of fuel staining, using the procedures in Kelly Aerospace Power Systems Service Bulletin (KAPS SB) No. A-107A (or later FAA-approved revision).\n\n- Requirement 2: If no leaks or stains are found, make a dated entry in the aircraft logbook recording the inspection (use KAPS SB A-107A procedures).\n\n- Requirement 3: If any leaks or stains are found, replace the valve with a new valve of the appropriate part number that has a manufacturer date code of 02/02 or later. For Piper PA-31-350, a specific part-number substitution is required (replace P/N A23D04-7.5 with P/N P23D04-7.5). Use the KAPS SB, Piper Vendor Service Publication VSP-150 (or later FAA-approved revisions), and applicable maintenance manuals for replacement procedures.\n\n- Requirement 4: Only install valves with manufacture date code 02/02 or later.\n\n- Alternative compliance option: Instead of repeated inspections/replacement, an operator may disable the heater (subject to Minimum Equipment List or Permissible Unserviceabilities rules). Disabling requires: capping the fuel supply upstream of the valve; disconnecting and securing electrical connections; testing to confirm the heater is disabled and no other system is affected; ensuring no fuel leaks; and installing a visible placard reading \"System Inoperative\" at the heater control valve.\n\n- Compliance timing: If the inspection was not done in the preceding 75 hours aircraft time-in-service (TIS), do the initial inspection within 25 hours TIS from the AD effective date. Thereafter, repeat inspections at intervals not to exceed 100 hours TIS or 12 months, whichever occurs first. If a leak is found, replace the valve before further flight.\n\n\n**Who is affected:**\n\n- Aircraft operators and maintenance organisations that operate aircraft fitted with the specified Kelly Aerospace shutoff valves and B-Series cabin heaters. That includes operators of many Cessna, Piper, Bombardier and Raytheon types listed, plus any other aircraft with the heater installed.\n\n- Maintenance personnel who must perform inspections, tests, replacements, record entries, or carry out the heater-disabling alternative.\n\n\n**Why it matters (official claim and mechanical effect):**\n\n- The stated safety concern is repeated reports of fuel leakage from these fuel regulator shutoff valves. Fuel leakage in the cabin-heater fuel system could lead to an in-flight or on-ground fire and consequent loss of the aircraft. The AD's stated purpose is to detect leaks early, remove affected valves, and prevent use of older valves by mandating manufacture date codes (Requirement 3 and 4). The alternative of disabling the heater removes the immediate fire risk from that heater at the cost of losing heater functionality.\n\n\n**Costs, incentives and trade-offs (practical testing of the claim):**\n\n- Who pays: aircraft operators bear the direct costs — time for repetitive inspections, parts cost for replacements (must be date-coded 02/02 or later), and labor. If operators choose the disablement option, there is a shorter-term low-cost filing (capping, securing electricals, placard) but an ongoing operational cost (heater unavailable where MEL/PU rules allow continued flight without it).\n\n- Behaviour changes: operators must either (a) institute a recurrent inspection regime and keep logbook records, (b) replace older valves with newer date-coded units when leaks are found (or proactively), or (c) disable the heater and operate under MEL/PU limits until the heater is restored properly. Maintenance organisations will need to check manufacture date codes on inventory and purchase compliant parts.\n\n- Compliance burden: requires routine inspections at specified intervals (100 hours TIS or 12 months), use of external service documents (KAPS SB A-107A and, for some aircraft, Piper VSP-150), and documentation in aircraft logbooks. The AD removed an earlier requirement to mark valve covers (Amendment 3 deletes that marking requirement) but retained the logbook entry requirement — reducing a physical marking burden but preserving recordkeeping.\n\n- Implementation risk and operational impacts: potential scarcity or lead time for replacement valves with the required date code may push operators to disable heaters instead of immediately replacing valves. Disabling heaters may be permissible under MEL/PU rules but can reduce aircraft utility (e.g., cabin heating) and may have commercial impacts in some operations.\n\n- Opportunity costs and substitution effects: operators will choose between ongoing inspection costs, replacement costs, or loss of heater function. Frequent repetitive inspections have ongoing labor costs; replacement increases spare-parts expenditure. Some operators may remove the heater from service for extended periods if valve supply is constrained.\n\n- Bureaucratic discretion and interaction with other rules: the alternative compliance route refers to MEL and CAR 37 provisions for Permissible Unserviceabilities, meaning approval and operational acceptability depends on MEL status and the operator's authorisations. Maintenance must follow the specified service bulletins or later FAA-approved revisions, introducing dependence on external documents and potential cross-jurisdictional approvals.\n\n\n**Concrete implementation points operators should note:**\n\n- Use KAPS SB No. A-107A (or later FAA-approved revisions) as the inspection and replacement procedure reference (Requirement 1 and 3).\n- Record every satisfactory inspection as a dated logbook entry (Requirement 2).\n- Replace any leaking/stained valve with a unit whose manufacture date code is 02/02 or later (Requirement 3 and 4).\n- If electing to disable the heater, follow the six-step disabling checklist in the AD and ensure compliance with MEL/PU rules before further flight.\n\n\n**Source claims vs costs:**\n\n- The AD claims its measures mitigate the unsafe condition (fuel leakage leading to fire). The trade-off is recurring inspection and replacement costs for operators, or reduced aircraft capability if heaters are disabled. The AD narrows an earlier administrative marking requirement (reducing an implementation burden) but leaves the substantive safety controls in place (inspections, replacements, date-code restriction)."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":true,"description":"The original AD (November 2001) addressed fuel leak safety concerns. Amendment 2 (April 2005) added valve marking requirements and heater disablement clarifications. This Amendment 3 (July 2005) removes the valve marking requirement entirely due to operational impracticality, while retaining all inspection and replacement obligations. The scope has shifted from 'inspect, mark and log' to 'inspect and log only' — a narrowing of administrative burden but maintenance of safety intent."},"complexity_factors":["Multiple nested compliance timelines (initial 25 hours TIS, then 100 hours/12 months recurring)","Cross-references to external technical documents (Kelly Aerospace SB A-107A, Piper VSP-150, FAA AD 2004-25-16 R1)","Conditional logic requiring different actions based on inspection results (leak found vs. no leak)","Specific part number substitutions required for one aircraft model (Piper PA-31-350)","Alternative compliance pathway (heater disablement) with 6 specific procedural steps","Historical amendment tracking (references to Amendment 1, 2, and original issue dates)"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It requires owners and operators of certain aircraft to inspect or replace faulty fuel regulator shutoff valves made by Kelly Aerospace.\n\n**What the problem is:**\nThese valves, used in B-Series cabin heaters, have been leaking fuel. Fuel leaks in aircraft can cause fires or complete loss of the aircraft.\n\n**Who must comply:**\nAnyone operating aircraft with Kelly Aerospace fuel regulator shutoff valves (part numbers 14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04, C23D04, or P23D04) installed in B1500, B2030, B2500, B3040, B3500, B4050, or B4500 combustion heaters. This includes many Cessna, Piper, Raytheon, and Bombardier aircraft models — plus any other aircraft with these heaters installed.\n\n**What you must do:**\n- **Inspect:** Visually inspect or pressure-test the valve for fuel leaks within 25 flight hours of the directive taking effect, then repeat every 100 flight hours or 12 months (whichever comes first).\n- **Document:** If no leak is found, write the inspection date in the aircraft's log book.\n- **Replace:** If you find any leak or fuel stain, replace the valve with a new one manufactured February 2002 or later (date code 02/02+) before flying again.\n- **Alternative:** You can permanently disable the heater instead (cap fuel lines, disconnect power, install an inoperative placard), provided this complies with your aircraft's Minimum Equipment List.\n\n**Why this matters:**\nThis directive prevents catastrophic fires. The previous version required physically marking the valve after each inspection, but operators found this impractical for repeated checks. This amendment removes the marking requirement while keeping the log book entry and all safety inspections."},"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-aircon-13-amdt-3-kelly-aerospace-fuel-regulator-shutoff-valves-cabin-heaters","history":"/api/acts/ad-aircon-13-amdt-3-kelly-aerospace-fuel-regulator-shutoff-valves-cabin-heaters/history","analysis":"/api/acts/ad-aircon-13-amdt-3-kelly-aerospace-fuel-regulator-shutoff-valves-cabin-heaters/analysis","conflicts":"/api/acts/ad-aircon-13-amdt-3-kelly-aerospace-fuel-regulator-shutoff-valves-cabin-heaters/conflicts","importantCases":"/api/acts/ad-aircon-13-amdt-3-kelly-aerospace-fuel-regulator-shutoff-valves-cabin-heaters/important-cases","documents":"/api/acts/ad-aircon-13-amdt-3-kelly-aerospace-fuel-regulator-shutoff-valves-cabin-heaters/documents"}}