Service difficulty report · Structure · Boeing 7377H4

Difficulty date
June 24, 2025
Submitted
July 15, 2025
Operation
Air carrier
Aircraft
N429WN
Make and model
Boeing 7377H4
Aircraft serial
33658
Aircraft time
72,793 hours, 43,149 cycles
Part
Structure
Condition
Corroded
Location
Zone 500
Stage of operation
IN
How discovered
V
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 AROUND OF BOOST PUMP LOCATED TRAILING EDGE AT LEVEL IRSS 145 AT LT WING. PERFORMED REWORK AND EVALUATED AREA ON AROUND OF FUEL BOOST PUMP LOCATED TRAILING EDGE AT LEVEL IRSS145 AT LT WING AND FOUND WITHIN LIMITS IAW SRM 57-20-10-1A-3 ALLOWABLE DAMAGE 3.

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