Service difficulty report · Attach Angle · Boeing 7377H4

Difficulty date
January 2, 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
Attach Angle
Part number
NOTENTERED
Part serial
NOTENTERED
Condition
Corroded
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

CORROSION FRONT SPAR WEB LOC. FUEL BOOST PUMP UPPER AREA IN IFSS 120 APROX AND WBL 88.24 APROX AT LT WING 2023-35975<[01] TOOL USED PN NORTEC 600D; SN 200048001; DUE DATE 30-MAR-23;[02] TOOL USED: EDDY CURRENT EQUIPMENT; P/N: NORTEC600D; S/N: 220272512; CAL DUE DATE: 17DEC23<BR>TOOL USED: ULTRASONIC THICKNESS GAGE; P/N: 45MG; S/N: 130063701;CAL DUE DATE: 16-JUN-23;[03] REPAIRED FRONT SPAR WEB LOC. FUEL BOOST PUMP UPPER AREA IN IFSS 120 APROX AND WBL 88.24 APROX AT LT WING IAW EA 23-157-00221 [TTG8Q00HHRR1] AND EA 23-157-00221-WIP1 [TTG8Q00HC5SS]<BR>SEE INDIVIDUAL SIGNOFFS BELOW;[04] COMPLETE TASK CERTIFIED

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