ATA 09 – TOWING AND TAXIING
- Towing
- by NLG
- by MLG
- with deflated tires
- Towing by the NLG with a Towbar
- On APU
- On Batteries only
- Taxiing
- Company procedures
Towing by NLG from the Front with a Towbar
- Safety Devices – Installed
- Check for NLG oleo extention – Should not be more than 300 mm (11.81 inches).
- This can cause damage to the cams that make the nose gear wheels go back to the center position.
- On the nose wheel steering deactivation electrical box – Install the SAFETY PIN
- ACCU PRESS – 3000 PSI >> Pointer must be in the green range.
- If necessary, pressurize the Yellow System.
- External Lights – ON
- Use a towbar that agrees with SAE ARP 1915 or ISO 9667 standards.
- For the requirements related to towbar shear pins and towbar tractor weights, refer to AC 5-8-0.
- Towbar installation and removal procedures.
- Speed Limits –
- 25 km/h – Normal (doors closed)
- 10 km/h – doors open
- Steering Angle (Alpha) : The maximum permitted steering-angle on each side of the aircraft centerline is +/- 95 deg.
- Steering-angle marking on NLG doors or on the fuselage.
- After towing operation, make sure that the nose wheels are aligned with the aircraft centerline.
- Towing on batteries only, without APU power
- This procedure is for towing of the aircraft in maintenance configuration only.
- The maximum towing time is 1 hour.
Towing with the Towbarless Tractor
- Check AMM procedures
- Also, If the tow fitting is broken, Aircraft can be towed with a towbarless tractor.
Refer to Aircraft Recovery Manual (ARM) for the towing of:
- A disabled aircraft from the runway threshold or a taxiway.
- An aircraft on a non-applicable ground surface (i.e. after leaving the runway or taxiway).
