| AD Number | 68-16-01 | Status | Active |
| Effective Date | August 05, 1968 | Issue Date | Not specified |
| Docket Number | Unknown | Amendment | 39-626 |
| 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) | 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 |
68-16-01 HAWKER SIDDELEY: Amendment 39-626. Applies to all Series of Model DH- 125 airplanes.
Compliance required as indicated, unless already accomplished.
To prevent engine flameouts during icing conditions, within the next 15 hours' time in service after the effective date of this AD, or before further flight into known or predicted icing conditions, whichever occurs first, install a placard on the flight instrument panel in clear view of the pilot reading as follows:
"TURN ENGINE RELIGHT SWITCH ON WHEN OPERATING ENGINE ANTI- ICING SYSTEM."
This supersedes Amendment 39-549 (33 F.R. 2504), AD 68-03-02.
This amendment becomes effective August 5, 1968.