Service difficulty report · Spar Web · Boeing 7377H4

Difficulty date
June 1, 2021
Submitted
July 6, 2021
Operation
Air carrier
Aircraft
N736SA
Make and model
Boeing 7377H4
Aircraft serial
27868
Aircraft time
74,899 hours, 44,315 cycles
System (JASC)
5711 · Wing Spar
Part
Spar Web
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 APROX. AND WBL 94.24 AT RT WING ; 2021-257643 / [01] TOOL USED: CALIPER P/N 700-113-10 S/N 0031753 CAL DUE DATE: 30 SEP 21.; [02] TOOL USED P/N NORTEC500D S/N N500X11290U021704 DUE DATE : 08-OCT-21.; [03] TOOL USED P/N NORTEC500D S/N N500X112900U021704 DUE DATE : 08-OCT-21.; [04] TOOL USED DIGITAL CALIPER; P/N: 700-113-10; S/N: 0010815; DUE DATE: 06/MAY/22; [05] TOOL USED P/N 45 MG S/N 130064101 DUE DATE 11/MAR/22; [06] SUMMARY EA 21-157-01723 HAS BEEN APPROVED; ACTIVATED; AND ADDED AS A SUBTASK TO FAULT TTG8Q0059XDE.; [07] REPAIRED FRONT SPAR WEB LOCATED FUEL BOOST PUMP IFSS 120 APROX. AND WBL 94.24 AT RT WING IAW EA 21-157-01723; [08] REPAIRED FRONT SPAR WEB LOCATED FUEL BOOST PUMP IFSS 120 APROX. AND WBL 94.24 AT RT WING IAW EA 21-157-01723

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