Service difficulty report · Drag Fitting · Boeing 7572Q8

Difficulty date
March 12, 2021
Submitted
March 15, 2021
Operation
Air carrier
Aircraft
N707TW
Make and model
Boeing 7572Q8
Aircraft serial
27625
Aircraft time
87,458 hours, 23,300 cycles
Part
Drag Fitting
Condition
Corroded
Location
Rt Engine
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

DURING INSPECTION MAINTENANCE FOUND CORROSION LEVEL 2 ON OPEN HOLES AT RH ENG DRAG FTG CLAMP-UP & DIAG BRACE AS FOLLOWS; HOLE #1 SCRATCHES ON FITTING BTW 9 TO 3 CLOCK POS, CORROSION ON SKIN AND FITTING BTW 3 TO 5 CLOCK POS; HOLE #2 SCRATCHES ON FITTING BTW 12 TO 2 CLOCK POS, CORROSION ON SKIN AND FITTING BTW 3 TO 4 AND 9 TO 10 CLOCK POS, CORROSION ON SKIN BTW 5 TO 7 POS ; HOLE #3 SCRATCHES ON FITTING BTW 5 TO 7 AND 12 TO 1 CLOCK POS, CORROSION ON SKIN AT 11 CLOCK POS ; HOLE #4 SCRATCHES ON SKIN AND FITTING BTW 8 TO 12 CLOCK POS, CORROSION ON SKIN AND FITTING BTW 7 TO 9 CLOCK POS ; HOLE #5 SCRATCHES ON SKIN BTW 6 TO 1 CLOCK POS; HOLE #6 SCRATCH ON FITTING BTW 2 TO 4 CLOCK POS, SCRATCH ON SKIN BTW 6 TO 12 CLOCK POS ; HOLE #7 SCRATCH ON FITTING BTW 12 TO 4 CLOCK POS, SCRATCHES ON SKIN BTW 4 TO 7 CLOCK POS ; HOLE #8 SCRATCH ON FITTING BTW 3 TO 7 CLOCK POS, CORROSION ON SKIN AND FITTING BTW 3 TO 5 AND 8 TO 10 CLOCK POS, SCRATCHES ON SKIN BTW 7 TO 1 CLOCK POS : HOLE #9 CORROSION ON SKIN/FITTING BTW 4 TO 12 CLOCK POS; HOLE #10 SCRATCHES ON SKIN BTW 7 TO 1 CLOCK POS AND CORROSION ON SKIN/FITTING BTW 11 TO 12 CLOCK POS. C/W ERA 590487-14. (LP 1752686)

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