Service difficulty report · Spar · Emb ERJ170200LR

Difficulty date
January 14, 2014
Submitted
January 14, 2014
Operation
Air carrier
Aircraft
N622CZ
Make and model
Emb ERJ170200LR
Aircraft serial
17000219
Aircraft time
16,259 hours, 9,242 cycles
System (JASC)
5711 · Wing Spar
Part
Spar
Condition
Cracked
Location
Wing
Part time
16,259 hours, 9,242 cycles
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

WHILE ACCOMPLISHING SB170-57-0038 ON EO E17X-57MA-004, CRACK DAMAGE WAS DISCOVERED SPAR III LT SIDE, TWO EACH CRACKS APPROXIMATELY 045 INCHES, CRACK INDICATIONS AT THE 4:00 AND 8:00 O’CLOCK POSITIONS. RACKS START AT THE SURFACE OF THE BULKHEAD & EXTEND INTO THE BORE THAT WERE FOUND IN THE CRITICAL FASTENER HOLE ON THE LT SIDE AFTER IT HAD BEEN ENLARGED TO 8MM, .314 INCHES IN DIAMETER IAW THE SB. RT SIDE, TWO EACH CRACKS APPROXIMATELY .045 INCHES CRACK INDICATIONS AT THE 5:00 & 10:00 O’CLOCK POSITIONS. CRACKS START AT THE SURFACE OF THE BULKHEAD & EXTEND INTO THE BORE THAT WERE FOUND IN THE CRITICAL FASTENER HOLE ON THE RT SIDE AFTER IT HAD BEEN ENLARGED TO 8MM, .314 INCHES IN DIAMETER IAW THE SB. THE CRACK DAMAGE WAS REMOVED BY SPOT FACING TO .50 INCHES ON THE LT & RT SIDES IAW ETD2014-170-001927. REPAIR WILL BE ACCOMPLISHED EO E17X-57MA-004.14 UNDER WORK ORDER 908512.

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