{"id":"F2005L02406","name":"AD/G1159/44 - Adel Wiggins Floor Heater Pad System","slug":"ad-g1159-44-adel-wiggins-floor-heater-pad-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":36879,"registerId":"commonwealth-F2005L02406-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Gulfstream (Grumman) G1159 and G-IV Seri","sectionType":"division","heading":"Gulfstream (Grumman) G1159 and G-IV Series Aeroplanes","content":"### Gulfstream (Grumman) G1159 and G-IV Series Aeroplanes\n\n| AD/G1159/44 | Adel Wiggins Floor Heater Pad System | 11/2005 DM |\n| ----------- | ------------------------------------ | ---------- |\n\n```html\n

Applicability:

Gulfstream Aerospace Corporation model/series aeroplanes as follows:

Model/Series

G-IV
GIV-X
GV
GV-SP

Serial Numbers

All
4001 through 4023 inclusive
All
5001 through 5075 inclusive

Requirement:

1. Perform an inspection to determine if an Adel Wiggins floor heater pad system is installed. A review of aeroplane maintenance records is acceptable in lieu of this inspection if the presence of Adel Wiggins floor heater pads can be conclusively determined from that review.

2. If an Adel Wiggins floor heater pad system is found during the Requirement 1 inspection/determination - deactivate the Adel Wiggins floor heater pad system in accordance with the Accomplishment Instructions of the applicable Alert Customer Bulletin (ACB) identified below, unless Requirement 3 applies.

Model/Series


G-IV
GV
G-IV (G300)
GIV-X (G350
G-IV (G400)
GIV-X (G450)
GV-SP (G500)
GV-SP (G550)

ACB, including Gulfstream
drawing 1159SB50018

G-IV ACB 33
GV ACB 22
G300 ACB 33
G350 ACB 2
G400 ACB 33
G450 ACB 2
G500 ACB 3
G550 ACB 3

Date


13 June 2005
13 June 2005
13 June 2005
13 June 2005
13 June 2005
13 June 2005
13 June 2005
13 June 2005

3. For any aeroplane that is found to have an Adel Wiggins floor heater pad system installed but is not listed in the effectivity block of Gulfstream Drawing 1159SB50018, deactivate the Adel Wiggins floor heater pad system in accordance with a method approved by the Manager, Atlanta Aircraft Certification Office (ACO), FAA.

\n```\n\n| | Note 1: For details of deactivation method approved by the Atlanta FAA ACO contact Gulfstream Customer Support on +1 912-965-4178 for assistance. |\n| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| | Note 2: FAA AD 2005-16-14 Amdt 39-14220 refers. |\n| Compliance: | For Requirements 1, 2 and 3 - Within 25 flight hours or 30 days after the effective date of this Directive, whichever occurs first. |\n| | This Airworthiness Directive becomes effective on 2 September 2005. |\n| Background: | The United States Federal aviation Administration has received a report of an incident in which an Adel Wiggins floor heater pad system short-circuited on a Gulfstream GV-SP series aeroplane. The short-circuit was discovered after an odour of burning was detected emanating from the floor of the cabin. The short-circuit resulted in localized damage to the floorboard and carpet. No circuit breakers tripped as a result of the short-circuiting. This condition, if not corrected, could result in a fire in the aeroplane cabin.Adel Wiggins floor heater pad systems may also be installed on all Gulfstream Model G-IV and G-V series aeroplanes and certain Gulfstream Model GIV-X series aeroplanes. Therefore, those models may be subject to the unsafe condition revealed on Model GV-SP series aeroplanes. |\n| | This Directive requires a one-time inspection to determine if an Adel Wiggins floor heater pad system is installed and deactivation of the floor heater pad system if it is installed. |\n\n![](image.001.png) \nCharles Lenarcic \nDelegate of the Civil Aviation Safety Authority\n\n29 August 2005","sortOrder":0},{"sectionNumber":"AD/G1159/44","sectionType":"part","heading":"AD/G1159/44","content":"## AD/G1159/44","sortOrder":1},{"sectionNumber":"Adel Wiggins Floor Heater Pad System","sectionType":"part","heading":"Adel Wiggins Floor Heater Pad System","content":"## Adel Wiggins Floor Heater Pad System","sortOrder":2},{"sectionNumber":"11/2005 DM","sectionType":"part","heading":"11/2005 DM","content":"## 11/2005 DM","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive sets out a one-time inspection and required deactivation where Adel Wiggins floor heater pads are fitted on the listed models; it does not indicate any expansion or narrowing of applicability beyond the listed models/serials and instead cross-references the related FAA AD and manufacturer ACBs (Applicability; Requirements 1–3; Note 2)."},"complexity_factors":["Applicability limited to listed Gulfstream models and serial-number ranges (Applicability table).","Allows maintenance-record review instead of physical inspection if conclusive (Requirement 1).","Multiple model-specific Alert Customer Bulletins (ACBs) and a Gulfstream drawing are specified as the deactivation method (Requirement 2 and ACB table).","Provides alternative deactivation method subject to approval by the Manager, Atlanta ACO, FAA for aeroplanes outside drawing effectivity (Requirement 3).","Short compliance window: 25 flight hours or 30 days from effective date (Compliance).","Cross-reference to FAA AD 2005-16-14 and contact details for Gulfstream support for implementation assistance (Notes 1–2 and Note 1 contact)."],"plain_english_summary":"This Directive requires operators of specified Gulfstream aeroplanes (certain G‑IV, GIV‑X, GV and GV‑SP serials) to perform a one‑time check for an Adel Wiggins floor heater pad system and, if present, deactivate it using the relevant Gulfstream Alert Customer Bulletin or an FAA‑approved method. It responds to a reported short‑circuit that caused burning odour and localized floor damage. Compliance is required within 25 flight hours or 30 days. Owners/operators pay for inspection and any deactivation and may need to obtain FAA or manufacturer approval in some cases."},"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 is a standard airworthiness directive addressing a specific safety defect in a specific aircraft system. The scope remains tightly focused on the Adel Wiggins floor heater pad issue across the identified Gulfstream models, consistent with the original safety purpose."},"complexity_factors":["Short, single-purpose directive with only 3 requirements","Cross-references to 8 different Gulfstream Alert Customer Bulletins (ACBs) and one engineering drawing (1159SB50018)","Conditional logic: Requirement 2 applies unless Requirement 3 applies (exception for aircraft not listed in the standard drawing)","Alternative compliance path: maintenance records review permitted instead of physical inspection","External dependency: requires contact with Gulfstream Customer Support or FAA Atlanta ACO for certain aircraft","No defined terms section — common aviation terminology used throughout"],"plain_english_summary":"This CASA Airworthiness Directive orders owners/operators of specified Gulfstream G‑IV, GIV‑X (SN 4001–4023), GV, and GV‑SP (SN 5001–5075) jets to check for an Adel Wiggins floor heater pad system and disable it if present, using Gulfstream ACB instructions or an FAA‑approved method. Compliance is required within 25 flight hours or 30 days. The measure prevents a reported short‑circuit/fire risk where breakers did not trip."}},"importantCases":[],"_links":{"self":"/api/acts/ad-g1159-44-adel-wiggins-floor-heater-pad-system","history":"/api/acts/ad-g1159-44-adel-wiggins-floor-heater-pad-system/history","analysis":"/api/acts/ad-g1159-44-adel-wiggins-floor-heater-pad-system/analysis","conflicts":"/api/acts/ad-g1159-44-adel-wiggins-floor-heater-pad-system/conflicts","importantCases":"/api/acts/ad-g1159-44-adel-wiggins-floor-heater-pad-system/important-cases","documents":"/api/acts/ad-g1159-44-adel-wiggins-floor-heater-pad-system/documents"}}