Service difficulty report · Channel · Boeing 7379

Difficulty date
June 25, 2026
Submitted
June 30, 2026
Operation
Air carrier
Aircraft
N37521
Make and model
Boeing 7379
Aircraft serial
64497
Aircraft time
18,129 hours, 6,039 cycles
Part
Channel
Part number
143A7501
Condition
Corroded
Location
Zone 100
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

FOUND DAMAGE CORROSION AT THE FWD CARGO FLOOR STRUCTURE ZEE CHANNEL LH SIDE FROM STA 500B TO STA 500L (REF AAR NR 1000080344) REMOVED AND REPLACED ZEE CHANNEL, APPLIED PRIMER AND ALODINE AT THE FWD CARGO FLOOR STRUCTURE LH SIDE FROM STA 500A TO STA 500L ALL WORK DONE IAW SRM 51-40-02-0G-0, 53-00-53-2R-5, 51-40-05-0G-0, 51-40-08-0G-0, 51-20-01-0G-0, SOPM 20-41-02.. REMOVED AND REPLACED ZEE CHANNEL, APPLIED PRIMER AND ALODINE AT THE FWD CARGO FLOOR STRUCTURE LH SIDE FROM STA 500A TO STA 500L ALL WORK DONE IAW B737-9MAX SRM 51-40-02-0G-0,53-00-53-2R-5,51-4 0-05-0G-0,51-40-0G-0,51-20-01-0G-0,SOPM 20-41-02 (SFR NO. 3850) (WORK ACCOMPLISHED BY V948025 AND AAR A-48 V950298).

More about the Boeing 737-9