Brand: Junxun

The A71034-3 Wrench – Aft Flight Mount is a dedicated aircraft engine maintenance tool used during engine buildup and installation operations. It is designed for work on the aft lower engine mount, providing access to the mounting hardware in the confined installation area of the Boeing 767 engine-to-airframe interface.

According to Boeing's Illustrated Tool and Equipment Manual, the A71034-3 is used on Boeing 767 aircraft equipped with PW4000 and JT9D-7R4D engines. The wrench is used together with a customer-furnished torque wrench to tighten the mounting bolts securing the aft lower engine mount to the engine. A71034-3 replaces A71034-2 for future procurement.

Key Points
Dedicated aft flight mount wrench for engine installation
Designed for Boeing 767 engine maintenance
Supports aft lower engine mount bolt tightening
Used together with a torque wrench for controlled installation
Applicable to PW4000 and JT9D-7R4D engine configurations
Replaces A71034-2 for future procurement
Suitable for professional aircraft MRO and engine installation operations
Junxun product data lists the tool at approximately 36 × 17 × 12 cm and 3 kg.
Application

The A71034-3 Aft Flight Mount Wrench is mainly used for:

Boeing 767 engine installation and removal support
Aft lower engine mount maintenance
Engine buildup (EBU) “B” Package operations
Tightening aft engine mount mounting bolts
PW4000-powered Boeing 767 maintenance
JT9D-7R4D-powered Boeing 767 maintenance
Aircraft engine-to-mount interface servicing
Professional aircraft engine MRO facilities