Service difficulty report · Bracket · Boeing 7377H4

Difficulty date
May 23, 2024
Submitted
June 25, 2024
Operation
Air carrier
Aircraft
N464WN
Make and model
Boeing 7377H4
Aircraft serial
32468
Aircraft time
66,809 hours, 39,895 cycles
Part
Bracket
Part number
UNKNOWN
Condition
Corroded
Location
Lt 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

EVIDENCE OF CORROSION UNDER SEALANT AT LEFT AFT BOOST PUMP BONDING STRAP<[01] REMOVED AND REPLACED BOTH UPPER AND LOWER BONDING STRAPS/BRACKETS AT LEFT WING AFT BOOST PUMP IAW SRM 51-40-02-0G-0; AIPC 28-22-41-05; AMM 20-10-44-400-801. PERFORMED ELECTRICAL RESISTANCE TEST BOTH UPPER AND LOWER BONDING STRAPS PASSED IAW SWPM 20-20-00. CAP SEALED FASTENERS AND SEALED BOTH BONDING STRAPS IAW AMM 51-31-00-390-805 AND AMM 28-22-41-400-801. REMOVED AND REPLACED BOTH UPPER AND LOWER BONDING STRAPS AND BRACKETS AT LEFT WING AFT BOOST PUMP IAW SRM 51-40-02-0G-0; AIPC 28-22-41-05; AMM 20-10-44-400-801. PERFORMED ELECTRICAL RESISTANCE TEST BOTH UPPER AND LOWER BONDING STRAPS PASSED IAW SWPM 20-20-00.

More about the Boeing 737-7H4