Airworthiness Directive · Amendment 39-14220 · Gulfstream Model G-IV, GIV-X, GV, and GV-SP Series Airplanes
Gulfstream Model G-IV, GIV-X, GV, and GV-SP Series Airplanes
This AD applies to the airplanes identified in Table 1 of this AD, certificated in any category.
| Gulfstream model/series | Serial Nos. |
|---|---|
| G-IV | All. |
| GIV-X | 4001 through 4023 inclusive. |
| GV | All. |
| GV-SP | 5001 through 5075 inclusive. |
The FAA is adopting a new airworthiness directive (AD) for all Gulfstream Model G-IV and GV series airplanes, and certain GIV-X and GV-SP series airplanes. This AD requires a one-time inspection to determine if a certain floor heater pad system is installed, and deactivation of the subject floor heater pad system if it is installed. This AD results from an incident of short-circuiting of the floor heater pads, in which no circuit breakers tripped in response to the short-circuiting. We are issuing this AD to prevent short-circuiting of the floor heater pad system, which could result in a fire in the airplane cabin.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 25 flight hours or 30 days after the effective date of this AD, whichever is first: Perform an inspection to determine if an Adel Wiggins floor heater pad system is installed. A review of airplane 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.
If an Adel Wiggins floor heater pad system is found during the inspection required by paragraph (f) of this AD: Within 25 flight hours or 30 days after the effective date of this AD, whichever is first, deactivate the Adel Wiggins floor heater pad system in accordance with the Accomplishment Instructions of the applicable customer bulletin identified in Table 2 of this AD, except as provided by paragraph (h) of this AD. Although the customer bulletins referenced in Table 2 of this AD specify to report compliance to the manufacturer, this AD does not require that action.
| Gulfstream model | Customer bulletin, including Gulfstream drawing 1159SB50018 | Date |
|---|---|---|
| G-IV | Gulfstream G-IV Alert Customer Bulletin 33 | June 13, 2005. |
| GV | Gulfstream GV Alert Customer Bulletin 22 | June 13, 2005. |
| G-IV (G300) | Gulfstream G300 Alert Customer Bulletin 33 | June 13, 2005. |
| GIV-X (G350) | Gulfstream G350 Alert Customer Bulletin 2 | June 13, 2005. |
| G-IV (G400) | Gulfstream G400 Alert Customer Bulletin 33 | June 13, 2005. |
| GIV-X (G450) | Gulfstream G450 Alert Customer Bulletin 2 | June 13, 2005. |
| GV-SP (G500) | Gulfstream G500 Alert Customer Bulletin 3 | June 13, 2005. |
| GV-SP (G550) | Gulfstream G550 Alert Customer Bulletin 3 June 13, 2005 | June 13, 2005. |
For any airplane that is found to have an Adel Wiggins floor heater pad system installed but that is not listed in the effectivity block of Gulfstream Drawing 1159SB50018: Within 25 flight hours or 30 days after the effective date of this AD, whichever is first, deactivate the Adel Wiggins floor heater pad system in accordance with a method approved by the Manager, Atlanta Aircraft Certification Office (ACO), FAA.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
