{"id":"F2006B05887","name":"AD/PA-34/16 Amdt 1 - Wing Spar Lower Tension Strap - Inspection","slug":"ad-pa-34-16-amdt-1-wing-spar-lower-tension-strap-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135935,"registerId":"commonwealth-F2006B05887-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-34/16 Amdt 1 - Wing Spar Lower Tension Strap - Inspection","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Piper PA-34 (Seneca) Series Aeroplanes\n\n \n\nAD/PA-34/16\n\nAmdt 1\n\n\nWing Spar Lower Tension Strap - Inspection 12/75\n\n \n\nApplicability: All model PA-34 with S/Nos. 34-7250001 to 34-7450082. Document: Piper SB No. 437A.\n\nCompliance:  Unless already inspected in accordance with DCA/PA-34/16 within 100 hours time in service after 31 December 1975. Thereafter at intervals not exceeding 100 hours time in service.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1730},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"Amendment 1 maintains the original scope of mandating recurring inspections for wing spar lower tension straps on the specified Piper PA-34 aircraft models, without expanding to additional aircraft types, serial numbers, or structural components."},"complexity_factors":["Very short, single-issue directive (approximately 100 words of substantive content)","Limited applicability to specific serial number range only","Single external technical reference requiring specialist aviation knowledge (Piper SB No. 437A)","Simple recurring compliance calculation based on flight hours"],"plain_english_summary":"This Airworthiness Directive (AD) mandates safety inspections for specific **Piper PA-34 Seneca aircraft** (serial numbers 34-7250001 to 34-7450082).\n\n**What it requires:**\n- **Inspection of wing spar lower tension straps** — critical structural components that help hold the wings together\n- **Frequency:** Every 100 hours of flight time (\"time in service\")\n- **First deadline:** Within 100 hours of flying after 31 December 1975 (unless already inspected under the previous directive DCA/PA-34/16)\n\n**Who it affects:**\n- Owners and operators of the specified Piper Seneca models\n- Maintenance organisations servicing these aircraft\n\n**Why it matters:**\nThis prevents structural failure in the wing assembly. The technical details of how to perform the inspection are contained in **Piper Service Bulletin No. 437A**, which is referenced but not reproduced in this directive."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-34-16-amdt-1-wing-spar-lower-tension-strap-inspection","history":"/api/acts/ad-pa-34-16-amdt-1-wing-spar-lower-tension-strap-inspection/history","analysis":"/api/acts/ad-pa-34-16-amdt-1-wing-spar-lower-tension-strap-inspection/analysis","conflicts":"/api/acts/ad-pa-34-16-amdt-1-wing-spar-lower-tension-strap-inspection/conflicts","importantCases":"/api/acts/ad-pa-34-16-amdt-1-wing-spar-lower-tension-strap-inspection/important-cases","documents":"/api/acts/ad-pa-34-16-amdt-1-wing-spar-lower-tension-strap-inspection/documents"}}