Airworthiness Directive · Amendment 39-16407 · Electric power
Hawker Beechcraft Corporation (Type Certificate No. A00010WI Previously Held by Raytheon Aircraft Company) Model 390 Airplanes
This AD applies to Model 390 airplanes, serial numbers RB-4 through RB-257, RB-259 through RB-265, RB-268, and RB-269, that are certificated in any category.
We are adopting a new airworthiness directive (AD) for certain Hawker Beechcraft Corporation Model 390 airplanes. This AD requires you to inspect for installation of certain serial number (S/N) starter generators and replace the starter generator if one with an affected serial number is found. This AD results from reports that starter generators with deficient armature insulating materials may have been installed on certain airplanes. We are issuing this AD to detect and replace starter generators with defective armature insulating materials. This condition could result in the loss of operation of one or both starter generators with consequent loss of all non battery electrical power.
To address this problem, you must do the following, unless already done:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) Inspect both starter generators for a starter generator with an affected serial number. | Within the next 25 hours time-in-service (TIS) after September 29, 2010 (the effective date of this AD). | Follow Hawker Beechcraft Mandatory Service Bulletin SB 24-3963, dated May 2009; and AMETEK Advanced Industries, Inc. Mandatory Service Bulletin—Number: 2009-0414, dated April 2009. |
| (2) If only one suspect starter generator with an affected serial number is found on the airplane during the inspection required in paragraph (f)(1) of this AD, replace the starter generator. | Replace the starter generator at whichever of the following times occurs first after the inspection where the affected starter generator is found: (i) Within the next 200 hours TIS; (ii) The next scheduled inspection; or (iii) Within the next 6 months. | Follow Hawker Beechcraft Mandatory Service Bulletin SB 24-3963, dated May 2009; and AMETEK Advanced Industries, Inc. Mandatory Service Bulletin—Number: 2009-0414, dated April 2009. |
| (3) If two starter generators with an affected serial number are found during the inspection required in paragraph (f)(1) of this AD, replace both starter generators. | Replace one starter generator within the next 25 hours TIS after the inspection where the affected starter generator was found. Replace the second starter generator at whichever of the following times occurs first after the inspection where the affected starter generator is found: (A) Within the next 200 hours TIS; (B) The next scheduled inspection; or (C) Within the next 6 months. | Follow Hawker Beechcraft Mandatory Service Bulletin SB 24-3963, dated May 2009; and AMETEK Advanced Industries, Inc. Mandatory Service Bulletin—Number: 2009-0414, dated April 2009. |
| (4) Use the form (Figure 1 of this AD) to report the results of the inspections required in paragraph (f)(1) of this AD. The Office of Management and Budget (OMB) approved the information collection requirements contained in this regulation under the provisions of the Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.) and assigned OMB Control Number 2120-0056. | Within 10 days after the inspection required in paragraph (f)(1) of this AD. | Send the report to the FAA at the address specified in paragraph (g) of this AD. |
| FAA-2010-0523 INSPECTION REPORT | ||
| (If the inspection required in paragraph (f)(1) of this AD was done before September 29, 2010 (the effective date of this AD), this report does not need to be completed and returned to the Wichita ACO) | ||
| Airplane Model | ||
| Airplane Serial Number | ||
| Airplane Tachometer Hours at Time of Inspection | ||
| Right Hand Starter Generator serial number | ||
| Left Hand Starter Generator serial number | ||
| Does the RH Starter Generator fall within the suspect lot? | No | If yes, replace and document replacement starter generator serial number. |
| Does the LH Starter Generator fall within the suspect lot? | No | If yes, replace and document replacement starter generator serial number. |
| If both Starter Generators serial numbers fell within the suspect lot, was only one Starter Generator replaced? | No | If yes, describe and document which starter generator needs to be replaced. |
| Were any other discrepancies noticed during the inspection? | ||
| Send report to: Kevin Schwemmer, Aerospace Engineer, FAA, Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, Wichita, KS 67209, fax: (316) 946-4107, e-mail: kevin.schwemmer@faa.gov. | ||
| Figure 1 |
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.
Aircraft
