Service difficulty report · Strap · Boeing 7377H4

Difficulty date
March 13, 2023
Submitted
April 17, 2023
Operation
Air carrier
Aircraft
N221WN
Make and model
Boeing 7377H4
Aircraft serial
34259
Aircraft time
58,906 hours, 34,822 cycles
Part
Strap
Condition
Corroded
Location
Zn 600 Right Win
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 LEADING EDGE LOWER STRAP LOCATED OFSS 410 AT RT WING 2023-185369<[01] TOOL USED; CALIPER; PN: 700-113-10; SN: 0033170; DUE DATE: 24-OCT-23.;[02] TOOL USED; CALIPER; PN: 700-113-10; SN: 0033170; DUE DATE: 24-OCT-23.;[03] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 210138203; DUE DATE: 11-APR-23;[04] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NORTEC 600 D; S/N: 210138203; DUE DATE: 11-APR-23;[05] ULTRASONIC THICKNESS GAGE P/N:45MG; S/N: 130066701; DUE DATE: 08-APR-23.;[06] TOOL USED : ULTRASONIC EQUIPMENT P/N 45MG S/N 221860711 DUE DATE: NOV-07-23.;[07] REPAIRED LOWER STRAP LOCATED OFSS 410 AT RT WING I.A.W EA 23-157-01023-WIP1 AND EA SUMMARY 23-157-01023; SEE INDIVIDUAL STEP SIGN OFFS BELOW;[08] REPAIRED LOWER STRAP LOCATED OFSS 410 AT RT WING I.A.W EA 23-157-01023-WIP1 AND EA SUMMARY 23-157-01023; SEE INDIVIDUAL STEP SIGN OFFS BELOW. JOB COMPLETED.

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