{"id":"F2008L01642","name":"AD/SF340/106 - Forward Engine Cowl Door","slug":"ad-sf340-106-forward-engine-cowl-door","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":73730,"registerId":"commonwealth-F2008L01642-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"SAAB SF340 Series Aeroplanes","sectionType":"division","heading":"SAAB SF340 Series Aeroplanes","content":"### SAAB SF340 Series Aeroplanes\n\n| AD/SF340/106 | Forward Engine Cowl Door | 6/2008 |\n| ------------ | ------------------------ | ------ |\n\n| Applicability: | Model SF340A aircraft, serial numbers 004 through 159.Model 340B aircraft, serial numbers 160 through 459.                                                                                                                                                                                                                                                                                                                                            |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Inspect in accordance with the requirements of SAAB Service BulletinSB-340-71-060 original issue, or later EASA approved revision.If cracks, deformations or damage is detected during the inspection, before further flight, repair in accordance with the Saab 340 Structure Repair Manual, or consult SAAB for corrective action.Within 10 days of the inspection, report the results to Saab AB, Saab Aerosystems.Note: EASA AD 2008-0069 refers. |\n| Compliance:    | Within 1,000 flight hours after 5 June 2008, unless already accomplished.                                                                                                                                                                                                                                                                                                                                                                             |\n|                | This Airworthiness Directive becomes effective on 5 June 2008.                                                                                                                                                                                                                                                                                                                                                                                        |\n| Background:    | Field reports were received of cracks in the frames and closing angle on the forward engine cowl door NS STA 203 and 250. In the case of a damaged frame and/or closing angle, the forward engine cowl door can loosen during flight and depart the aircraft. An inspection is required on four points on each of the forward engine cowl doors.                                                                                                      |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n21 April 2008","sortOrder":0},{"sectionNumber":"AD/SF340/106","sectionType":"part","heading":"AD/SF340/106","content":"## AD/SF340/106","sortOrder":1},{"sectionNumber":"Forward Engine Cowl Door","sectionType":"part","heading":"Forward Engine Cowl Door","content":"## Forward Engine Cowl Door","sortOrder":2},{"sectionNumber":"6/2008","sectionType":"part","heading":"6/2008","content":"## 6/2008","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive targeting a specific safety-critical defect in a specific aircraft type. The scope remains tightly focused on the original safety concern (cracking in forward engine cowl door frames) with no evidence of scope creep."},"complexity_factors":["Single, specific mechanical component addressed (forward engine cowl door)","Clear, unambiguous applicability criteria (specific serial number ranges)","Straightforward compliance timeline (1,000 flight hours from effective date)","Single referenced technical document (SAAB Service Bulletin SB-340-71-060)","Simple conditional logic: inspect → if damage found → repair → report","No nested exceptions, no defined terms section, no cross-references to other legislation beyond the note about EASA AD 2008-0069"],"plain_english_summary":"CASA orders owners/operators of SAAB SF340A (S/N 004–159) and 340B (S/N 160–459) to inspect forward engine cowl doors for cracks, deformation or damage per SAAB SB-340-71-060. Any damage must be repaired before flight and results reported to SAAB within 10 days. Action is required within 1,000 flight hours after 5 June 2008 to prevent cowl doors falling off in flight."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD sets a targeted inspection, repair and reporting requirement for specified SF340 serial numbers. The text shows no alteration or expansion of scope beyond those measures; it implements a remedial safety action in response to reported cracks (Applicability; Requirement; Background)."},"complexity_factors":["Cross-reference to external technical documents (SAAB Service Bulletin SB‑340‑71‑060) which operators must obtain and follow (Requirement).","Repair authority and method depend on the Saab 340 Structure Repair Manual or direct consultation with Saab, creating reliance on manufacturer guidance (Requirement).","Applicability limited by specific serial number ranges, requiring operators to determine affected airframes (Applicability).","A fixed compliance window (within 1,000 flight hours of 5 June 2008) imposes scheduling and operational constraints (Compliance).","Mandatory administrative reporting of inspection results to Saab AB within 10 days adds paperwork and follow‑up (Requirement).","Safety consequence triggers an immediate ‘before further flight’ repair obligation if damage is detected, potentially grounding affected aircraft (Requirement; Background)."],"plain_english_summary":"Requires inspection of the forward engine cowl doors on SAAB SF340A (s/n 004–159) and SF340B (s/n 160–459) per SAAB Service Bulletin SB‑340‑71‑060 within 1,000 flight hours of 5 June 2008. If cracks, deformation or damage are found the operator must repair per the Saab 340 Structure Repair Manual or consult Saab, and report results to Saab AB within 10 days.\n\nThe aircraft operator bears the inspection, repair and reporting burden. CASA issued the directive after field reports that cowl‑door frame or closing‑angle failure could allow a door to depart in flight."},"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-sf340-106-forward-engine-cowl-door","history":"/api/acts/ad-sf340-106-forward-engine-cowl-door/history","analysis":"/api/acts/ad-sf340-106-forward-engine-cowl-door/analysis","conflicts":"/api/acts/ad-sf340-106-forward-engine-cowl-door/conflicts","importantCases":"/api/acts/ad-sf340-106-forward-engine-cowl-door/important-cases","documents":"/api/acts/ad-sf340-106-forward-engine-cowl-door/documents"}}