Service difficulty report · Spar · Boeing 7377H4

Difficulty date
June 8, 2021
Submitted
July 26, 2021
Operation
Air carrier
Aircraft
N441WN
Make and model
Boeing 7377H4
Aircraft serial
29837
Aircraft time
60,855 hours, 35,873 cycles
System (JASC)
5711 · Wing Spar
Part
Spar
Condition
Corroded
Location
Rt 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 AT RT WING ; 2021-269602 / [01] TOOL USED P/N:NORTEC 600D; S/N: 210138003; DUE DATE: 05-MAR-22 AND P/N: 38DL PLUS; S/N: 120398603; DUE DATE: 22-JUL-21.; [02] TOOL PN:700-113-10 S/N:0019289 DUE DATE:25MAR22; [03] TOOL USED P/N: 45MG; S/N: 130060401; DUE DATE: 22-APR-22.; [04] TOOL USED CALIPER PN: 700-113-10; SN:0019289; CAL DUE DATE: 25 MAR 22.; [05] TOOL USED CALIPER PN: 700-113-10; SN: 0033205; CAL DUE DATE: 29 JUL 21; [06] SUMMARY EA 21-157-01795 HAS BEEN APPROVED; ACTIVATED; AND ADDED AS SUBTASK TO FAULT TTG8Q005D7GB.; [07] REPAIR FRONT SPAR WEB LOCATED FUEL BOOST PUMP IFSS 120 APPROX AT RT WING IAW EA# 21-157-01795 FAULT TTG81005PVFE AND EA# 21-157-01795 WIP1 FAULT TT8Q005KWWS; [08] REPAIRED FRONT SPAR WEB LOCATED FUEL BOOST PUMP IFSS 120 APPROX AT RT WING IAW EA# 21-157-01795 FAULT TTG81005PVFE AND EA# 21-157-01795 WIP1 FAULT TT8Q005KWWS<BR>RII ACCOMPLISHED

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