Service difficulty report · Support Angle · Boeing 7377H4

Difficulty date
December 12, 2020
Submitted
July 15, 2021
Operation
Air carrier
Aircraft
N434WN
Make and model
Boeing 7377H4
Aircraft serial
32454
Aircraft time
60,441 hours, 35,783 cycles
Part
Support Angle
Condition
Cracked
Location
R/H Wing
Stage of operation
IN
How discovered
9
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

CRACK FRONT SPAR SUPPORT ANGLE ON FUEL BOOST PUMP AREA BETWEEN IFSS 110 AND IFSS 120 AT RT WING / REPLACED FRONT SPAR SUPPORT ANGLE ON FUEL BOOST PUMP AREA BTW IFSS 110 ON IFSS 120 AT RT WING IAW B737-700 SRM 51-10-02 ITEM 9 51-40-02 57-20-10-1A-3 ALLOWABLE DAMAGE 3 AND DRAWING N. 112A2004 REV A AND 116A3939 REV B MACHINING FROM MATERIAL 7050T7451 BATCH 2020-1835

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