{"id":"F2006B03547","name":"AD/BAL/1 - Brass Nipple Failure","slug":"ad-bal-1-brass-nipple-failure","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43114,"registerId":"commonwealth-F2006B03547-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BAL/1 - Brass Nipple Failure","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nHot Air Balloons\n\nAD/BAL/1 Brass Nipple Failure 5/86 DM\n\nApplicability: The Balloon Works hot air balloons models, Firefly 6, 6B and 7 fitted with burner S/No 510 to 562.\n\nRequirement: FAA AD 75-17-36.\n\n    Install safety wire extending from each of the three corners of the bottom plate to the lower portion of the upper Rego valve body. Assure wires are uniformly tightened.\n\n    2. (a) Disconnect main burner tubes from manifold.\n\n    (b) Drill out nine rivets holding pan to the bottom plate.\n\n    (c) Unhook three burner support springs.\n\n    (d) Remove upper burner assembly from lower burner assembly.\n\n    (e) Unscrew nuts to remove pilot light tubes.\n\n    (f) Clamp square section of Rego valve in vice.\n\n    (g) Unscrew and remove burner manifold.\n\n    (h) Inspect nipple. If nipple is steel, reassemble burner, if nipple is brass replace nipple with steel nipple, Balloon Works P/No A4032B.\n\n    (i) Reassemble burner.\n\nNote: Use teflon tape or pipe dope type sealant on nipple threads. Safety wire (Para 1) is not required after steel nipple is installed.\n\nCompliance: 1 Unless Para 2 already accomplished, before further flight after 30 April 1986.\n\n2. Within 5 hrs time in service after 30 April 1986.\n\nBackground: To avoid separation of burner due to a possible brass nipple failure.","sortOrder":0}],"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"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Scope remains focused on the specified Balloon Works models and listed burner serial numbers and requires the mechanical corrective actions set out (safety wire or steel nipple replacement). The instrument implements FAA AD 75-17-36 and does not expand the group of affected aircraft or obligations beyond that corrective task."},"complexity_factors":["Narrow applicability to specific balloon models and burner serial numbers (simple target population)","Prescriptive mechanical disassembly/reassembly steps require basic maintenance skills and tools","Clear, short compliance deadlines (before further flight or within 5 hours TIS)","Cross-reference to an external FAA AD (requires checking another instrument)","Part-specific replacement with identified part number (Balloon Works P/No A4032B)","Little administrative discretion or reporting procedure specified"],"plain_english_summary":"This airworthiness directive requires owners/operators of Balloon Works hot-air balloons Firefly 6, 6B and 7 (burners S/No 510–562) to fix a possible brass nipple failure on the burner by installing safety wire or replacing the brass nipple with a steel part. Operators must pay for inspection, parts (Balloon Works P/No A4032B) and labour; the work is required before further flight (or within 5 hours time-in-service) after 30 April 1986 and follows FAA AD 75-17-36."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a discrete airworthiness directive addressing a specific mechanical defect in specific equipment. It has not expanded beyond its original safety purpose."},"complexity_factors":["Single, specific mechanical issue addressed (brass nipple failure)","Clear, step-by-step procedural instructions (9 steps for disassembly/inspection)","Limited applicability (3 specific balloon models, specific burner serial number range)","Simple conditional logic (if steel, reassemble; if brass, replace)","Two-tier compliance structure (immediate safety wire vs. permanent replacement)","No cross-references to other legislation beyond single FAA AD citation","Minimal defined terms (only standard aviation terminology like 'P/No' for part number, 'S/No' for serial number)"],"plain_english_summary":"This safety directive requires owners/operators of The Balloon Works Firefly 6, 6B, and 7 balloons with burner serials 510–562 to inspect and fix a faulty brass burner nipple that can fail and separate the burner from the envelope. Because failure risks catastrophic loss of control, affected balloons must have a temporary safety wire fitted before any flight after 30 April 1986 and a steel replacement nipple installed within five flight hours thereafter (wires may be removed once replaced)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bal-1-brass-nipple-failure","history":"/api/acts/ad-bal-1-brass-nipple-failure/history","analysis":"/api/acts/ad-bal-1-brass-nipple-failure/analysis","conflicts":"/api/acts/ad-bal-1-brass-nipple-failure/conflicts","importantCases":"/api/acts/ad-bal-1-brass-nipple-failure/important-cases","documents":"/api/acts/ad-bal-1-brass-nipple-failure/documents"}}