{"id":"F2006B03632","name":"AD/BEECH 1900/14 - Pilots and Co-Pilots Windshields","slug":"ad-beech-1900-14-pilots-and-co-pilots-windshields","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43222,"registerId":"commonwealth-F2006B03632-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 1900/14 - Pilots and Co-Pilots Windshields","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)  \nBeechcraft 1900 Series Aeroplanes\n\nAD/BEECH 1900/14 Pilot’s and Co-Pilot’s Windshields 10/96\n\nTX\n\nApplicability: Model 1900D aeroplanes serial numbers UE-1 through UE-239 inclusive with either windshield part number (P/N) 114-384020-1 or 114-384020-2 fitted.\n\nRequirement: 1. Identify whether windshield P/N 114-384020-1 or 114-384020-2 is fitted, noting that the pilot's windshield and co-pilot's windshield may not have the same windshield configuration.\n\n    2. Pull and band the circuit breakers leading to the windshield heat control on the pilot or co-pilot sides where windshield P/N 114-384020-1 or 114-384020-2 is fitted. The affected circuit breakers are the LEFT WSHLD, CONTROL and PWR circuit breakers located on the circuit breaker panel on the co-pilot's side (Zone 246) and the CO-PILOT WSHLD ANTI-ICE circuit breaker located on the aft side of the forward pressure bulkhead above the copilot left rudder pedal (Zone 222).\n\n    3. Fabricate a placard with the following words in letters at least 2.5 mm (0.10 inches) in height and install the placard within clear view of the pilot on the instrument panel:\n\nFLIGHT IN KNOWN ICING CONDITIONS IS PROHIBITED\n\nNote: FAA Priority Letter AD 96-15-01 Docket 96-CE-41-AD refers.\n\nCompliance: For Requirement 1 \\- Before further flight after 21 July 1996.\n\nFor Requirement 2 and 3 \\- Immediately following Requirement 1, if either windshield P/N 114-384020-1 or 114-384020-2 is found to be fitted.\n\nBackground: The FAA has received reports of smoke and fire in the cockpit of two Beech Model 1900D aeroplanes. The reports indicate that a high resistance short circuit situation was created by the braid wire that is attached to the low heat power terminal block mounted on the pilot and co-pilot windshields. This caused arcing and generated sufficient amounts of heat, resulting in fire and smoke in the cockpit.\n\nThe action required by this Directive is only interim, until a final action is identified, and is designed to decrease the likelihood of smoke and fire occurring around the forward edge of the cockpit glare shield.\n\nFederal Register of Legislative Instruments F2006B03632","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive applies narrowly to specified serial numbers and two windshield part numbers and prescribes interim, time‑sensitive actions (identify P/N, isolate specified circuit breakers, install placard). There is no indication in the text that the directive expands beyond those aircraft or actions; it is explicitly described as an interim measure pending a final action (Applicability; Requirements 1–3; Background)."},"complexity_factors":["Narrow applicability to Model 1900D serial numbers UE-1 through UE-239 and two windshield part numbers (Applicability) — simplifies scope but requires checking serial/P/N records.","Three discrete actions required: identify windshield P/N, pull and band specified circuit breakers, and fabricate/install placard (Requirements 1–3) — operationally straightforward but multi-step.","Specific circuit breakers located in two different zones must be isolated (LEFT WSHLD CONTROL and PWR on co‑pilot panel Zone 246; CO‑PILOT WSHLD ANTI‑ICE on forward pressure bulkhead Zone 222) — requires access and basic electrical/maintenance work (Requirement 2).","Immediate compliance timing for affected aircraft (Compliance) — creates urgent scheduling/dispatch constraints for operators and maintenance teams.","Interim status of the action (Background) — implies a further mandatory action may follow, creating uncertainty for long‑term maintenance planning.","Operational trade‑off: disabling windshield heat and prohibiting flight in known icing directly affects commercial availability and routing decisions (Requirement 2; Requirement 3).","Low technical ambiguity but non‑trivial safety consequence if ignored — enforcement depends on operator/maintenance compliance and inspection records (Compliance)."],"plain_english_summary":"This airworthiness directive requires operators of certain Beechcraft 1900D aeroplanes (serial UE‑1 to UE‑239) with windshield part numbers 114‑384020‑1 or 114‑384020‑2 to identify the fitted windshields, isolate the windshield heat circuit breakers, and fit a cockpit placard prohibiting flight in known icing. It is an interim safety measure intended to reduce the risk of smoke or fire from windshield wiring.\n\nAffected parties (aircraft operators and maintenance organisations) must perform inspections and simple electrical and placarding work immediately; disabling windshield heat changes operational capability and may create direct maintenance and operational costs."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a specific aircraft model. It has not expanded beyond its original purpose of mitigating windshield heating fire risks in Beechcraft 1900D aircraft."},"complexity_factors":["Very short document (approximately 250 words)","Only 3 defined part numbers (P/N 114-384020-1, P/N 114-384020-2, and reference to FAA AD 96-15-01)","Simple conditional logic: if affected windshield found, then disable heating and install placard","No nested exceptions or cross-references to other legislation sections","Single compliance pathway with clear deadlines","Technical but straightforward mechanical instructions (circuit breaker locations specified by zone numbers)"],"plain_english_summary":"This CASA Airworthiness Directive affects Beechcraft 1900D aeroplanes (serials UE‑1 to UE‑239) fitted with windshield part numbers 114‑384020‑1/‑2. It requires disabling the windshield electrical heating and fitting an instrument‑panel placard prohibiting flight in known icing.\n\nCASA issued it after FAA reports of cockpit smoke/fire from arcing at the windshield power terminal; the measure is a temporary fire‑risk mitigation until a permanent fix is developed."},"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-beech-1900-14-pilots-and-co-pilots-windshields","history":"/api/acts/ad-beech-1900-14-pilots-and-co-pilots-windshields/history","analysis":"/api/acts/ad-beech-1900-14-pilots-and-co-pilots-windshields/analysis","conflicts":"/api/acts/ad-beech-1900-14-pilots-and-co-pilots-windshields/conflicts","importantCases":"/api/acts/ad-beech-1900-14-pilots-and-co-pilots-windshields/important-cases","documents":"/api/acts/ad-beech-1900-14-pilots-and-co-pilots-windshields/documents"}}