{"id":"F2005L02090","name":"AD/A320/160 Amdt 1 - Cargo Compartment Heating Temperature Sensor","slug":"ad-a320-160-amdt-1-cargo-compartment-heating-temperature-sensor","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":36313,"registerId":"commonwealth-F2005L02090-current","compilationNumber":null,"startDate":"2026-04-01","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/A320/160 Amdt 1 | Cargo Compartment HeatingTemperature Sensor | 9/2005 |\n| ------------------ | ------------------------------------------- | ------ |\n\n| Applicability: | A319, A320 and A321 series aeroplanes as follows, except those aeroplanes with Airbus modification 32616 incorporated during production or Airbus Service Bulletin (SB) A320-21-1141 embodied whilst in service:                                                                                                                                                                                |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|                | A319 aeroplanes with Airbus modifications 24486 incorporated during production or Airbus SB A320-21-1140 embodied whilst in service.                                                                                                                                                                                                                                                            |\n|                | A320 aeroplanes with Airbus modifications 20084 incorporated during production or Airbus SB A320-21-1048 embodied whilst in service.                                                                                                                                                                                                                                                            |\n|                | A321 aeroplanes with Airbus modifications 22596 incorporated during production.                                                                                                                                                                                                                                                                                                                 |\n| Requirement:   | Modify the temperature sensor of the aft cargo compartment heating system in accordance with the instructions given in SB A320-21-1141 or later revision approved by the DGAC.                                                                                                                                                                                                                  |\n|                | Note: DGAC AD F-2004-123 R1(EASA Approval 2005-5892) refers.                                                                                                                                                                                                                                                                                                                                    |\n| Compliance:    | Before 31 May 2007.                                                                                                                                                                                                                                                                                                                                                                             |\n|                | This Amendment becomes effective on 1 September 2005.                                                                                                                                                                                                                                                                                                                                           |\n| Background:    | The Direction Générale de l’Aviation Civile (DGAC) of France has advised that during a fire containment capability evaluation of the cargo compartment of an A319, the level of the Halon extinguishing agent decreased below the required concentration. This was due to a too high rate of air renewal in the compartment and in such a situation the protection against fire is not ensured. |\n|                | An investigation identified two leak sources, the first leak was generated by the forward and aft cargo door water drain valves while the second leak was generated by the aft cargo compartment temperature sensor installation.                                                                                                                                                               |\n\n|     | The original issue of this Directive rendered mandatory the modification of the temperature sensor of the aft cargo compartment heating system to prevent the second air leak. |\n| --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|     | This Amendment extends the compliance from 31 October 2006 to 31 May 2007.                                                                                                     |\n|     | The original issue of this Directive became effective on 30 September 2004.                                                                                                    |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n22 July 2005","sortOrder":0},{"sectionNumber":"AD/A320/160 Amdt 1","sectionType":"part","heading":"AD/A320/160 Amdt 1","content":"## AD/A320/160 Amdt 1","sortOrder":1},{"sectionNumber":"Cargo Compartment HeatingTemperature Sen","sectionType":"part","heading":"Cargo Compartment HeatingTemperature Sensor","content":"## Cargo Compartment Heating  \nTemperature Sensor","sortOrder":2},{"sectionNumber":"9/2005","sectionType":"part","heading":"9/2005","content":"## 9/2005","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The amendment did not change which aircraft or the required modification; it only extended the compliance deadline from 31 October 2006 to 31 May 2007. The modification requirement, applicability exclusions, and technical instruction (SB A320-21-1141 or DGAC‑approved revision) remain unchanged (Applicability; Requirement; Compliance)."},"complexity_factors":["Conditional applicability across multiple models with carve-outs for aircraft that already have specific production modifications or service bulletins embodied (Applicability).","Technical mandatory modification tied to a specific Airbus Service Bulletin and to later revisions only if approved by the DGAC (Requirement; Note: DGAC AD reference).","Compliance deadline and its extension (original deadline extended to 31 May 2007) requires operators to schedule maintenance and manage downtime (Compliance).","Safety rationale grounded in fire‑suppression performance (Halon concentration drop) and investigation identifying two leak sources — one being the aft cargo temperature sensor installation (Background).","Regulatory cross-reference to foreign authority (DGAC AD F-2004-123 R1 / EASA approval) introduces inter-agency approval dependence."],"plain_english_summary":"Mandates that operators of specified Airbus A319/A320/A321 aeroplanes modify the aft cargo-compartment heating-system temperature sensor in accordance with Airbus SB A320-21-1141 (or a DGAC-approved later revision) to stop an air leak that can reduce Halon fire-extinguishing concentration. Applies only where the listed production modifications or equivalent service bulletins have not already been embodied.\n\nCompliance was required by 31 May 2007 (amendment effective 1 Sep 2005). Operators must organise and pay for the modification."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment serves its original narrow purpose: extending the compliance deadline for a specific safety modification. The scope remains tightly focused on the cargo compartment temperature sensor modification and has not expanded beyond the original fire safety concern identified in the 2004 original issue."},"complexity_factors":["Multiple nested applicability conditions requiring cross-referencing of specific Airbus modification numbers and Service Bulletins","Exception-within-exception structure: applies to certain aircraft EXCEPT those with specific modifications, with further sub-categories for each aircraft model (A319/A320/A321)","Requires reference to external technical documents (Airbus SB A320-21-1141 and DGAC AD F-2004-123 R1) for full compliance instructions","Amendment structure requires understanding of previous directive (original issue AD/A320/160) to grasp full context"],"plain_english_summary":"This AD mandates that operators of certain Airbus A319/A320/A321 aircraft modify a poorly installed aft cargo‑compartment temperature sensor that creates an air leak and can let Halon suppressor escape, reducing fire‑fighting effectiveness. Aircraft already embodying mod 32616 or Airbus SB A320‑21‑1141 are exempt. The corrective modification must be done by 31 May 2007 to ensure cargo‑hold fire protection."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-160-amdt-1-cargo-compartment-heating-temperature-sensor","history":"/api/acts/ad-a320-160-amdt-1-cargo-compartment-heating-temperature-sensor/history","analysis":"/api/acts/ad-a320-160-amdt-1-cargo-compartment-heating-temperature-sensor/analysis","conflicts":"/api/acts/ad-a320-160-amdt-1-cargo-compartment-heating-temperature-sensor/conflicts","importantCases":"/api/acts/ad-a320-160-amdt-1-cargo-compartment-heating-temperature-sensor/important-cases","documents":"/api/acts/ad-a320-160-amdt-1-cargo-compartment-heating-temperature-sensor/documents"}}