Service difficulty report · Hook · Boeing 737890

Difficulty date
January 4, 2023
Submitted
January 5, 2023
Operation
Air carrier
Aircraft
N529AS
Make and model
Boeing 737890
Aircraft serial
35198
Aircraft time
44,981 hours, 13,241 cycles
Engine
Cfmint CFM567B20
Engine time
46,730 hours, 13,730 cycles
Part
Hook
Part number
CFM567B273
Part serial
802157
Condition
Worn
Location
#2 Engine
Part time
46,730 hours, 13,730 cycles
Stage of operation
IN
How discovered
B
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

WHILE ACCOMPLISHING ASA T/C SBCFM56-7B-72-1074-1, FOUND AFT WSIWDE OF THE STAGE 3 J-HOOK COMPLETELY WORN THROUGH THE MATERIAL AT THE E12 O'CLOCK POSITION, 2 LOCATIONS WITH FIRST LOCATION SHOWING J-HOOK LIBERATION AND SECOND LOCATION SHOWING REMAINING J-HOOK MATERIAL LESS THAN APPROX 0.002". COMPLETE WEAR THROUGH MORE THAN A HALF OF THE ON SHROUD LENGTH. GROUNDED - YES. REMOVE #2 ENGINE SN 802157 AND REPLACED WITH ENGINE SN 874451. REF ASA EBU SHOP W/O 1937473 N/R # 0003.