Service difficulty report · Ring · Boeing 737724

Difficulty date
March 1, 2012
Submitted
March 2, 2012
Operation
General aviation
Filed by
Z6WR336Y
Spirit Aerosystems Inc
Aircraft
N25705
Make and model
Boeing 737724
Aircraft serial
28766
Aircraft time
45,845 hours, 15,417 cycles
Part
Ring
Part number
315A22225
Condition
Worn
Location
Thrust Reverser
Part time
45,845 hours, 15,417 cycles
Component
Thrust Reverser · Boeing · 737700
Component part number
315A229591
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

THE 315A2222-5 CASCADE RING HAS EXTENSIVE WEAR/DAMAGE CT THE AFT LWR ATTACHING BOLT LOCATION. HOLE SHOULD BE .3750 -.3754. ACTUAL IS ELONGATED TO APPROX .6210 WITH HEAVY WEAR/MISSING MATERIAL CT THE NUT SIDE. THE 315A2402-5 LATCH BEAM HAS A CORRESPONDING ELONGATED HOLE CT THE AFT LOCATING HOLE CT THE CASCADE RING. HOLE IS ELONGATED OUT TO .4950, SHOULD BE .3750-.3754. ADDITIONAL MATERIAL WEAR/DAMAGE ON THE LOCATING FASTENER HEAD SIDE THAT MEASURES APPROX .070 DEEP X .10 WIDE THE OUTSIDE DIA OF HOLE.