| AD Number | 91-03-06 | Status | Active |
| Effective Date | February 11, 1991 | Issue Date | Not specified |
| Docket Number | 90-NM-272-AD | Amendment | 39-6868 |
| Product Type | ["Aircraft"] | Product Subtype | ["Large Airplane"] |
| CFR Part | --- - Part 39 | CFR Section | N/A |
| Citation | This information is not available. | ||
| Manufacturer(s) | Textron Aviation Inc. |
| Model(s) | BAe.125 Series 800A BAe.125 Series 800A (C-29A) BAe.125 Series 800A (U-125) BH.125 Series 400A BH.125 Series 600A DH.125 Series 1A DH.125 Series 1A-522 DH.125 Series 1A/R-522 DH.125 Series 1A/S-522 DH.125 Series 3A DH.125 Series 3A/R DH.125 Series 3A/RA DH.125 Series 400A HS.125 Series 1B HS.125 Series 1B-522 HS.125 Series 1B/R-522 HS.125 Series 1B/S-522 HS.125 Series 3B HS.125 Series 3B/R HS.125 Series 3B/RA HS.125 Series 3B/RB HS.125 Series 3B/RC HS.125 Series 400B HS.125 Series 400B/1 HS.125 Series 401B HS.125 Series 403A(C) HS.125 Series 403B HS.125 Series 600A HS.125 Series 600B HS.125 Series 600B/1 HS.125 Series 600B/2 HS.125 Series 600B/3 HS.125 Series 700A HS.125 Series 700B HS.125 Series F3B HS.125 Series F3B/RA HS.125 Series F400B HS.125 Series F403B HS.125 Series F600B |
91-03-06 BRITISH AEROSPACE: Amendment 39-6868. Docket No. 90-NM-272-AD.
Applicability: All Model BAe 125-800A and HS 125-700A series airplanes, pre-Modification 253159; and all pre-Modification 253159 Model DH/HS/BH 125 series airplanes that have been retrofitted with Garrett TFE 731 engines; certificated in any category.
Compliance: Required as indicated, unless previously accomplished.
To prevent the overheating of the battery and loss of the pilot's and co-pilot's primary and standby heading and attitude information displays, accomplish the following:
A. Within 30 days after the effective date of this AD, perform a visual inspection of the Generator Control Unit (GCU) earth wire, in accordance with British Aerospace Service Bulletin 24-A278, dated July 26, 1990.
1. If no evidence of damage is found, prior to further flight, perform a continuity check of the earth wire between the starter/generator terminal stud "E" and connector pin "F" on the GCU, in accordance with paragraph 2.A.(6) of the Accomplishment Instructions of the service bulletin. If continuity exists, no further action is required.
2. If evidence of damage or lack of continuity is found or suspected, prior to further flight, replace the earth wire in accordance with the service bulletin.
B. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM- 113, FAA, Transport Airplane Directorate.
NOTE: The request should be submitted directly to the Manager, Standardization Branch, ANM-113, and a copy sent to the cognizant FAA Principal Inspector (PI). The PI will then forward comments or concurrence to the Manager, Standardization Branch, ANM-113.
C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.
All persons affected by this directive who have not already received the appropriate service information from the manufacturer may obtain copies upon request to British Aerospace, PLC, Librarian for Service Bulletins, P.O. Box 17414, Dulles International Airport, Washington, D.C. 20041. This information may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington.
This amendment (39-6868, AD 91-03-06) becomes effective on February 11, 1991.