{"id":"F2007L00102","name":"AD/A320/86 Amdt 1 - Toilet Systems - Rinse Valve Replacement","slug":"ad-a320-86-amdt-1-toilet-systems-rinse-valve-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":68176,"registerId":"commonwealth-F2007L00102-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Airbus Industrie A319, A320 and A321 Ser","sectionType":"division","heading":"Airbus Industrie A319, A320 and A321 Series Aeroplanes","content":"### Airbus Industrie A319, A320 and A321 Series Aeroplanes\n\n| AD/A320/86 Amdt 1 | Toilet Systems - Rinse Valve Replacement | 2/2007 |\n| ----------------- | ---------------------------------------- | ------ |\n\n| Applicability: | Airbus Industrie A319, A320 and A321 series aircraft having toilet systems equipped with Monogram Rinse Valve Part Number (PN) 15800-348, Revision C, and which have not had Airbus Industrie Modification 26145 or Airbus Industrie Service Bulletin (SB) A320-38-1049 embodied.                                                                             |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Replace, in accordance with SB A320-38-1049 dated 22 January 1997 or later DGAC approved revisions, all Monogram rinse valves PN 15800-348 Revision C installed on toilet(s).Note: DGAC Airworthiness Directive 97-269-103(B) dated 24 September 1997 refers.                                                                                                 |\n| Compliance:    | Unless already accomplished, within 50 flight hours or one month after the effective date of this AD, whichever occurs earlier.                                                                                                                                                                                                                               |\n|                | This Amendment becomes effective on 15 February 2007.                                                                                                                                                                                                                                                                                                         |\n| Background:    | Leakage of water from the forward toilet system due to a faulty rinse valve can cause fluid contamination of the aircraft’s avionics bays.The current amendment of the AD extends the applicability to include Airbus A319, A320 and A321 series aircraft with no change in AD Requirements.The original issue of this AD became effective on 1 January 1998. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n5 January 2007","sortOrder":0},{"sectionNumber":"AD/A320/86 Amdt 1","sectionType":"part","heading":"AD/A320/86 Amdt 1","content":"## AD/A320/86 Amdt 1","sortOrder":1},{"sectionNumber":"Toilet Systems - Rinse Valve Replacement","sectionType":"part","heading":"Toilet Systems - Rinse Valve Replacement","content":"## Toilet Systems - Rinse Valve Replacement","sortOrder":2},{"sectionNumber":"2/2007","sectionType":"part","heading":"2/2007","content":"## 2/2007","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":2,"scope_assessment":{"changed":true,"description":"The original 1998 AD applied only to the A320 series. This 2007 amendment extends coverage to include the A319 and A321 series aircraft as well, effectively tripling the aircraft types covered while maintaining identical technical requirements. This represents a scope expansion through 'template' application to related aircraft models sharing the same toilet system design."},"complexity_factors":["Single, specific technical requirement (valve replacement)","Only 3 defined identifiers (part number, modification number, service bulletin reference)","Clear applicability criteria using 'and/or' logic","Simple compliance timeframe (50 flight hours OR 1 month)","No nested exceptions or conditional sub-clauses","Cross-references limited to one service bulletin and one French aviation directive (DGAC AD) for background only","Total length: approximately 200 words of substantive content"],"plain_english_summary":"This CASA Airworthiness Directive mandates that operators of Airbus A319/A320/A321 aircraft replace faulty Monogram toilet rinse valves (P/N 15800‑348, Rev C) that can leak onto avionics bays. It applies where the Airbus mod/SB fix hasn’t been installed and must be done per Airbus Service Bulletin A320‑38‑1049 within 50 flight hours or one month. The measure prevents water-induced damage to critical electronic systems."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The amendment extends the applicability to include Airbus A319, A320 and A321 series aircraft that meet the valve and embodiment criteria, but it does not change the substantive replacement requirement. (Background: amendment extends applicability; original AD effective 1 January 1998.)"},"complexity_factors":["Narrow technical applicability — only aircraft with Monogram rinse valve PN 15800-348 Revision C and without Mod 26145 or SB A320-38-1049 embodied (Applicability).","Mandatory replacement follows a specific service bulletin and DGAC-approved revisions, creating dependency on referenced technical material (Requirement).","Short compliance window — 50 flight hours or one month — imposes operational scheduling and maintenance resource constraints (Compliance).","Amendment extends applicability to additional A319/A320/A321 aircraft but leaves requirements unchanged, so operators must check historical embodiment status across the fleet (Background).","Cross-reference to DGAC airworthiness directive and historical ADs requires administrative verification and may involve record searches (Requirement / Background).","Potential parts availability and shop capacity issues for concentrated work across affected fleet increase logistical complexity (implied by Requirement and Compliance)."],"plain_english_summary":"This airworthiness directive requires operators to replace Monogram rinse valves PN 15800-348 Revision C installed on toilets of Airbus A319, A320 and A321 aircraft unless Airbus Modification 26145 or Service Bulletin A320-38-1049 has already been embodied. Operators must complete the replacement within 50 flight hours or one month. The directive aims to prevent water leakage that could contaminate avionics bays; operators pay for parts and maintenance and must schedule the work within the short compliance window."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-86-amdt-1-toilet-systems-rinse-valve-replacement","history":"/api/acts/ad-a320-86-amdt-1-toilet-systems-rinse-valve-replacement/history","analysis":"/api/acts/ad-a320-86-amdt-1-toilet-systems-rinse-valve-replacement/analysis","conflicts":"/api/acts/ad-a320-86-amdt-1-toilet-systems-rinse-valve-replacement/conflicts","importantCases":"/api/acts/ad-a320-86-amdt-1-toilet-systems-rinse-valve-replacement/important-cases","documents":"/api/acts/ad-a320-86-amdt-1-toilet-systems-rinse-valve-replacement/documents"}}