- Effective
- June 1, 1984
- Models
- 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 and 4 more
- Data sheet
- TCDSA3EU
- Registered aircraft
- 4 matched by model
- Product
- Aircraft · Large airplane
- Amendment
- 39-4854
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed January 21, 2026.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 21 KB | e83ce304…d0c1e26 | FAA DRS (API key needed) |
On this page
The airworthiness directive
77-13-09 R1 HAWKER SIDDELEY AVIATION, LTD: Amendment 39-2934 as amended by Amendment 39-4854. Applies to Model DH/BH 125 airplanes series 1A up to and including series 600A certificated in all categories.
A. Prior to the accumulation of 6600 total landings or upon reaching 10 years after the date of manufacture of the airplane, whichever occurs first, if not already accomplished, incorporate Hawker Siddeley modifications 25-2402 and 25-2207 in accordance with Section 2, Accomplishment Instructions, of Hawker Siddeley Aviation, Ltd., Service Bulletin 53-46-(2402), Revision 2, dated February 16, 1976. Airplanes which have already exceeded 6500 landings or are over 9-1/2 years from date of manufacture must be modified within the next 100 landings or 6 months after the effective date of this amendment, whichever occurs first.
B. Alternate means of compliance which provide an equivalent level of safety may be used when approved by the Manager, Seattle Aircraft CertificationOffice, FAA, Northwest Mountain Region.
C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of inspections and/or modifications required by this AD.
Amendment 39-2934 became effective July 25, 1977.
This Amendment 39-4854 becomes effective June 1, 1984.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 4
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1968 | 1 |
|---|---|
| 1970 | 1 |
| 1971 | 1 |
1 with no year recorded