Service difficulty report · Web · Boeing 7377H4

Difficulty date
March 19, 2023
Submitted
May 3, 2023
Operation
Air carrier
Aircraft
N436WN
Make and model
Boeing 7377H4
Aircraft serial
32456
Aircraft time
66,420 hours, 39,287 cycles
Part
Web
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 FUEL BOOST PUMP WEB LOCATED IFSS115 AND WS108 AT RT WING 2023-208279<[01] TOOL USED EDDY CURRENT EQUIPMENT P/N NORTEC 600D; S/N 60009161631 DUE DATE 31/JAN/24;[02] ULTRASONIC THICKNESS GAGE P/N:45MG; S/N: 130066701; DUE DATE: 08-APR-23.;[03] EVALUATED REWORKED FUEL BOOST PUMP WEB LOCATED IFSS115 AND WS108 AT RT WING AND FOUND WITHIN LIMITS IAW B737-700 SRM 57-20-10-1A-3. ALLOWABLE DAMAGE 3. PARAGRAPH 2(B)(1). FIG. 102; MRT IS = 0.386?; HFEC INSPECTION DONE ON REWORKED CRACK INDICATION NOT FOUND. SEE INDIVIDUAL SIGNOFFS BELOW.;[04] CORRECTIVE ACTON STEP 3 CERTIFIED RII

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