Service difficulty report · Spar · Boeing 7377H4

Difficulty date
August 11, 2021
Submitted
September 10, 2021
Operation
Air carrier
Aircraft
N754SW
Make and model
Boeing 7377H4
Aircraft serial
29849
Aircraft time
74,935 hours, 44,224 cycles
System (JASC)
5711 · Wing Spar
Part
Spar
Condition
Corroded
Location
Lt 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 LOCATED FUEL BOOST PUMP IFSS 120 APPROX; LOWER AREA AT LT WING ; 2021-368745 / [01] TOOL USED/ EDDY CURRENT PN/ NORTEC 600D; SN/ 2000053402; DUE DATE/ 23APR22.; [02] TOOL USED: ULTRASONIC THICKNESS GAUGE ; PN/ 25DL PLUS;SN/ 071504410; DUE DATE/ 20NOV21; [03] TOOL USED : CALIPER P/N:700-113-10 S/N:0016656 DUE DATE: 11-MAY-22; [04] TOOL USED CALIPER P/N :500-464 S/N : 15331936 DUE DATE : 05-OCT-21; [05] TOOL USED: EDDY CURRENT INSTRUMENT P/N: NORTEC 500D; S/N: N500X1693P030456 DUE DATE: 30-NOV-21.; [06] REPAIRED FRONT SPAR WEB LOCATED FUEL BOOST PUMP IFSS 120 APPROX; LOWER AREA AT LT WING IAW EA 21-157-02490; [07] STEP 6 CORRECTED <BR>REFER TO FAULT TTG8Q00617WM WHERE EA 21-157-02490 WAS ADDED AS A SUBTASK.; [08] TASK CARD COMPLETED; [09] TASK CARD COMPLETED<BR>RII

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