Airworthiness Directive · Amendment 39-14988 · Raytheon Aircraft Company Models 58 and G58 Airplanes
Raytheon Aircraft Company Models 58 and G58 Airplanes
This AD applies to Models 58 and G58 airplanes, serial numbers TH-2097 through TH-2150, with optional propeller unfeathering accumulators installed, that are certificated in any category.
The FAA adopts a new airworthiness directive (AD) for certain Raytheon Aircraft Company (RAC) Models 58 and G58 airplanes with optional propeller unfeathering accumulators installed. This AD requires you to inspect the left propeller accumulator oil tube assembly for any chafing; replace the propeller accumulator oil tube assembly if any chafing is found; and reposition and secure with clamps both the left engine manifold pressure hose and its metal identification tags to avoid contact with other tubes, hoses, electrical wires, parts, components, and structure. This AD results from several reports on the affected airplanes of chafing damage on the left propeller accumulator oil tube assembly. We are issuing this AD to detect, correct, and prevent any chafing damage of the left propeller accumulator oil tube assembly, which could result in loss of engine oil. Loss of engine oil may lead to fire or smoke in the engine compartment, inability to unfeather the propeller, engine damage, or loss of engine power.
To address this problem, you must do the following, unless already done:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Inspect the left propeller accumulator oil tube assembly for chafing | For airplanes that have not had a 100-hour time-in-service (TIS) inspection or the inspection following Raytheon Safety Communiqué No. 271, dated May 2006: Within the next 25 hours TIS after April 19, 2007 (the effective date of this AD). For airplanes that have had a 100-hour TIS inspection or the inspection following Raytheon Safety Communiqué No. 271, dated May 2006: Within the next 50 hours TIS after April 19, 2007 (the effective date of this AD) | Follow Raytheon Aircraft Company Mandatory Service Bulletin No. SB 61-3806, issued: August 2006. |
| (2) If any chafing is found in the inspection required by paragraph (e)(1) of this AD, replace the propeller accumulator oil tube assembly | Before further flight after the inspection required by paragraph (e)(1) of this AD | Follow Raytheon Aircraft Company Mandatory Service Bulletin No. SB 61-3806, issued: August 2006. |
| (3) Reposition and secure with clamps the left manifold pressure hose and its metal identification tags to ensure clearance between it and all tubes, hoses, electrical wires, parts, components, and structure | Before further flight after the inspection or replacement required in paragraphs (e)(1) and (e)(2) of this AD | Follow Raytheon Aircraft Company Mandatory Service Bulletin No. SB 61-3806, issued: August 2006. |
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.
