Service difficulty report · Support Angle · Boeing 7377H4

Difficulty date
January 10, 2023
Submitted
February 2, 2023
Operation
Air carrier
Aircraft
N405WN
Make and model
Boeing 7377H4
Aircraft serial
27893
Aircraft time
71,985 hours, 42,752 cycles
Part
Support Angle
Part number
NOTENTERED
Part serial
NOTENTERED
Condition
Cracked
Location
Zn 500 Left 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 ON SUPPORT ANGLE LOCATED ON FRONT SPAR AT IFSS 112 WBL 94.24 AT LT WING 2023-36529<[01] TOOL USED DIGITAL CALIPER P/N 500-193-30 S/N 0000291 DUE DATE 12-OCT-23.;[02] TOOLS USED: POWER PACK P/N: FMK0003223; S/N: PE0412/63335; DUE DATE: 26-JAN-23; MULTIMETER P/N: FLUKE 87-5; S/N: 17930029; DUE DATE: 13-DEC-23; THERMOMETER P/N: FLUKE 566; S/N: 46660121WS; DUE DATE: 13-APR-23.;[03] REPLACED SUPPORT ANGLE LOCATED ON FRONT SPAR AT IFSS 112 WBL 94.24 AT LT WING IAW B737-700 SRM 57-20-10-1A-3 ALLOWABLE DAMAGE 3 PARAGRAPH 2.C;7(A)4(B) AND 8. AND B737-700 51-40-02<BR>SEE INDIVIDUAL SIGNOFFS BELOW;[04] REPLACED SUPPORT ANGLE LOCATED ON FRONT SPAR AT IFSS 112 WBL 94.24 AT LT WING IAW B737-700 SRM 57-20-10-1A-3 ALLOWABLE DAMAGE 3 PARAGRAPH 2.C;7(A)4(B) AND 8. AND B737-700 51-40-02 <BR>SEE INDIVIDUAL SIGNOFFS BELOW AS RII

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