Service difficulty report · Drag Fitting · Boeing 7572Q8

Difficulty date
June 18, 2024
Submitted
June 19, 2024
Operation
Air carrier
Aircraft
N709TW
Make and model
Boeing 7572Q8
Aircraft serial
28168
Aircraft time
84,846 hours, 22,556 cycles
Engine
Pwa PW2037
Part
Drag Fitting
Part number
UNKNOWN
Condition
Corroded
Location
Lt 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

DAMAGES WERE FOUND ON OPEN HOLES AT LH ENG DRAG FTG CLAMP-UP & DIAG BRACE AS FOLLOW; HOLE #1 CORROSION ON FITTING AT 8 O CLOCK POSITION, HOLE #2 CORROSION ON FITTING-SKIN AND BTW TO 1-2 O CLOCK POSITION,AND GOUGE ON FITTING-SKIN BTW TO 1-2 O CLOCK POSITION AND BTW TO 9-10 O CLOCK POSITION; HOLE #3 CORROSION ON FITING-SKIN BTW TO 9-10 O CLOCK POSITION AND GOUGE ON FITTING BTW TO 7-8 O CLOCK POSITION . HOLE #4 CORROSION AND GOUGE ON FITTING-SKIN BTW 3-4 O CLOCK POSITION , HOLE #5 CORROSION ON SKIN-FITTING BTW TO 9-10 O CLOCK POSITION, AND GOUGE ON SKIN BTW TO 12-1 O CLOCK POSITION . HOLE #6 GOUGE ON SKIN 7 O CLOCK POSITION. HOLE #7 CORROSION AND GOUGE ON FITTING-SKIN BTW TO 8-9 O CLOCK POSITION. HOLE #8 CORROSION ON FITTING-SKIN BTW 8-9 O CLOCK POSITION AND GOUGE ON FITTING BTW TO 5-6 O CLOCK POSITION , HOLE #9 CORROSION-GOUGE ON FITTING AND SKIN BTW TO 10-11 O CLOCK POSITION, GOUGE ON FITTING AT 7 O CLOCK POSITION. HOLE #10 CORROSION ON SKIN BTW TO 7-8 O CLOCK POSITION AND GOUGE ON FITTING BTW TO 8-9 O CLOCK POSITION IN REF . CARD. CORRECTIVE ACTION: SUMMARY OF NRC 00347: HOLES #1, #2, #3, #4, #5, #6, #7, #8, #9 & #10 WERE REPAIRED PER PRI 618107-14 REV. 5 & ER/A 618107-14AD REV. ORIG.

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