235004-1937-Notice-to-Aircraft-Owners-and-Ground-Engineers-No-9-of-1937 — Page 1

*

THE HONG KONG GOVERNMENT GAZETTE, MARCH 25, 1937.

No. 213.

DIRECTORATE OF AIR SERVICES,

HONG KONG,

Notice to Aircraft Owners and Ground Engineers.

No. 9 of the year 1937.

CIERVA AUTOGIROS, TYPE C30A : PAWLS AND SPRINGS FOR BRAKE LEVERS

1. Cases having occurred where the handbrake on an Autogiro of the above type has been prematurely released owing to the pawl coming out of engagement with the ratchet, it has become essential to ensure that the pawl and spring fitted to the brake lever are of the latest design.

2. The pawl spring should be of 14 gauge steel to Part No. 12/T.556, and the pawl should be case-hardened to Part No. 11/T.556. All pawls are stamped S. 14" in addition to the Part Number.

3. An immediate inspection of the above-mentioned parts must be carried out, particular attention being paid to the pawl, to ascertain whether undue wear, which would enable the pawl to come out of engagement, has taken place. Should this be the case, the Autogiro must not be flown until a new pawl is fitted.

4. In cases where the parts in question are not as specified in para. 2 above, Certificates of Airworthiness will be liable to suspension or cancellation if replacement by the correct parts has not been effected within three months from the date of this Notice. Certificates of Airworthiness will not be renewed and ground engineers must not sign Daily Certificates of Safety for Flight in respect of such Autogiros, after the expiry of the aforementioned period, until the replacement parts are correctly fitted.

G. F. HOLE, Director of Air Services

Hong Kong, 23rd March, 1397.

289