Service difficulty report · Channel · Boeing 7377H4

Difficulty date
April 16, 2022
Submitted
May 3, 2022
Operation
Air carrier
Aircraft
N924WN
Make and model
Boeing 7377H4
Aircraft serial
36628
Aircraft time
45,894 hours, 27,583 cycles
Part
Channel
Condition
Corroded
Location
Aft Cargo
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

FOUND CORROSION AT AFT CARGO L/H Z CHANNEL BETWEEN STA 847 TO 727 / [01] REMOVED CORROSION AT AFT CARGO L/H Z CHANNEL BETWEEN STA 727 TO STA 847 FOUND BETWEEN STA 747 TO STA 767 OUT LIMITS IAW B737 SRM 51-10-02-0G-0.;[11] REMOVED CORROSION AT AFT CARGO L/H Z CHANNEL BETWEEN STA 727 TO STA 847 AS PER B737-700 SRM 51-10-02-0G-0. EXFOLIATED CORROSION FOUND BETWEEN STA 747 TO STA 767 SECTION FOUND TO BE OUT OF LIMITS AS PER B737 SRM 53-00-53-1A-2. LOCATED AND DRILLED NEW SECTION OF L/H ZEE CHANNEL FROM 747 TO 847 AS PER B737-700 SRM 51-40-05-0G-0. TREATED AND PRIMED NEW SECTION OF L/H ZEE CHANNEL AS PER B737-700 AMM 51-21-41-370-803 AND 51-21-72-370-802. INSTALLED 100% NUT PLATE ON NEW PART OF L/H ZEE CHANNEL AS PER B737-700 SRM 51-40-02-0G-0. SPLICED UP TOGETHER AFT CARGO L/H ZEE CHANNEL AS PER B737-700 SRM 51-40-02-0G-0 AND 53-00-53-2R-5 REPAIR 5.;[12] VERIFIED STEP 11

More about the Boeing 737-7H4