Service difficulty report · Floor Panel · Boeing 7378H4

Difficulty date
April 27, 2022
Submitted
May 12, 2022
Operation
Air carrier
Aircraft
N8685B
Make and model
Boeing 7378H4
Aircraft serial
36723
Aircraft time
20,280 hours, 9,431 cycles
Part
Floor Panel
Part number
140EF
Condition
Corroded
Location
Aft Cargo Bay
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

AFT CARGO FLOOR BOARD 140 EF CORRODED ALONG EDGE A225-001 / [01] CORROSION ON PANEL 140EF EXCEEDS THE 20' MAX LIMIT. PANEL FOUND OUT OF LIMITS IAW B-737 AMM 25-52-00-200-803.;[02] MATERIAL VERIFIED AS 0.071' 2024-T3 IAW B-737 AMM 25-52-01-201-801. A-TAG A122585;[03] VERIFIED STEPS 1 AND 2 MATERIAL VERIFIED AS 0.071' 2024-T3; CORROSION OUT OF LIMITS;[04] NEW PANEL 140EF FABRICATED IAW B-737 AMM 25-52-01-201-801.;[05] VERIFIED STEP 4;[06] OK GIVEN TO TREAT AND PRIME;[07] TREATED AND PRIMED FLOOR BOARD 140EF I/A/W B737-800 AMM 51-21-41 AND 51-21-72.;[08] JOB COMPLETE; AUDIT C/W

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