Service difficulty report · Cargo Track · Boeing 7377H4

Difficulty date
July 30, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N447WN
Make and model
Boeing 7377H4
Aircraft serial
33720
Aircraft time
58,733 hours, 34,620 cycles
Part
Cargo Track
Condition
Corroded
Location
Bs 400
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

CORROSION ON TRACK TIE DOWN FWD CARGO BAY BS 400 LBL 18 WL 156 ; / [01] REMOVED CORROSION ON TRACK TIE DOWN FWD CARGO BAY BS 400 LBL 18 WL 156 MEASURES L= 2.200' W= 1.100' D= 0.012' BEINIG WITHIN LIMITIS PER SRM 53-00-53-1A-2 TOOL USED: ID ATS 1737 S/N UNKNOWN DUE= 07/2022; [02] CORRECTION MEASUREMENT; [03] VERIFIED REMOVED CORROSION ON TRACK TIE DOWN FWD CARGO BAY BS 400 LBL 18 WL 156 MEASURES L= 2.200' W= 1.100' D= 0.012' BEINIG WITHIN LIMITIS PER SRM 53-00-53-1A-2; [04] CORRECTED CORROSION LEVEL TO LEVEL 1; [05] APPLIED CHEMICAL CONVERSION COATING AND PRIMED REWORKED AREAS AT TRACK TIE DOWN FWD CARGO BAY BS 400 LBL 18 WL 156 PER AMM 51-21-41-370-802 AND AMM 51-21-72-370-804; [06] VERIFIED CONVERSION COATING AND PRIMER APPLICATION PER AMM 51-21-41-370-802 AND AMM 51-21-72-370-804

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