Service difficulty report · Torque Ring · Boeing 757236

Difficulty date
March 25, 2005
Submitted
May 2, 2005
Operation
General aviation
Make and model
Boeing 757236
Aircraft time
15,204 hours
Engine
Rroyce RB211535E4
Part
Torque Ring
Part number
PNLJ75153
Condition
Worn
Location
Thrust Reverser
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) AIRCRAFT ARRIVED WITH DAMAGE TO THE NR 2 ENG FORWARD THRUST REVERSER TORQUE BOX ON THE OB SIDE. CLOSER INSPECTION REVEALED THAT THE BLADE STRAP (PART OF THE ACTUATOR LOCKOUT MECHANISM) AFT ATTACHMENT POINT CAME LOOSE AND WHEN THE THRUST REVERSER STOWED THE STRAP FOLDED FORWARD AND CAUSED THE DAMAGE. IT WAS NOTICED THAT THE BLADE STRAP BRACKET ON THE TORQUE RING HAD BEEN BADLY WORN CAUSING DAMAGE TO THE TORQUE RING AND CASCADE VANE. THE OTHER SIDE SHOWED SIMILAR WEAR MARKS. THE FWD FITTING FOR THE BLADE STRAP WAS FOUND TO BE CRACKED AS WELL.