Page 268 - The Jet Engine

Maintenance

Fig. 24-7 Ground running danger zones.

34. The aircraft should be headed into wind and accordance with local instructions. When vertical
positioned so that the air intake and exhaust are over take-off aircraft are being tested, protective steel
firm concrete, or a prepared area that is free from plates and deflectors may be used to prevent ground
loose material and loose objects, and clear of erosion and engine ingestion of exhaust gases and
equipment. Where noise suppression installations debris. Aircraft wheels should be securely chocked
are used, the aircraft should be positioned in and braked; with vertical take-off aircraft, anchoring

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