Service difficulty report · Channel · Boeing 73779P

Difficulty date
August 12, 2021
Submitted
September 20, 2021
Operation
Air carrier
Aircraft
N7832A
Make and model
Boeing 73779P
Aircraft serial
30657
Aircraft time
52,700 hours, 33,462 cycles
Part
Channel
Condition
Corroded
Location
Bs 369-500d
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

CORROSION. ** FWD CARGO COMPMT. BILGE L/H FLOOR SUPPORT Z CHANNEL FROM STA 396 TO STA 500D ; / [01] CORRODED Z CHANNEL REMOVAL ACCOMPLISHED ON FAULT TTG8Q004BYWN.; [02] RECEIVED NEW Z CHANNEL MATERIAL BAC/1496-444 P.O:1715975. L0CATED AND DRILLED. REF SRM.51-30-05-0G-0-A00745.; [03] VERIFIED STEPS 1 AND 2 .OK TO TREAT AND PRIME.; [04] TREATED AND PRIMED Z CHANNEL IN REF.AMM:51-21-41-370-802-NG. AND AMM:51-21-72-370-801.RESPECTIVELY.<BR>THE Z CHANNEL; REMOVED AND INSTALLATION TO BE ACCOMPLISHED ON FAULT #TTG8Q004BYWN.; [05] LATE ENTRY: REMOVED CORROSION AT; FWD. CARG. COMP.; L/H; Z CHANNEL. FRON STA. 396 TO STA. 510. AND FOUND TO BE; OUT OF LIMITS; AS PER; REF. 53-00-53-1A-2. ALLOW DAMAGE 2 FIG.103 DETAIL; D.; [06] VERIFIED STEPS 4AND 5

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