Service difficulty report · Drag Fitting · Boeing 757351

Difficulty date
November 20, 2022
Submitted
November 21, 2022
Operation
Air carrier
Aircraft
N588NW
Make and model
Boeing 757351
Aircraft serial
32988
Aircraft time
68,340 hours, 22,270 cycles
Part
Drag Fitting
Condition
Damaged
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 SKIN BTW 7 TO 8 O'CLOCK POSITION, HOLE #2 CORROSION ON SKIN BTW 8 TO 10 O'CLOCK POSITION, HOLE #4 CORROSION ON SKIN BTW 6 TO 8 O'CLOCK POSITION AND GOUGE ON FITTING BTW 4 TO 5 O'CLOCK POSITION, HOLE #5 CORROSION ON SKIN AND FITTING BTW 8 TO 11 O'CLOCK POSITION AND GOUGES ON SKIN BTW 3 TO 4 O'CLOCK POSITION, HOLE #10 GOUGE ON FITTING BTW 6 TO 8 O'CLOCK POSITION, IN REF. CARD. CORRECTIVE ACTION: SUMMARY OF NRC S/N:00264. HOLES: #1, #2, #4, #5 & #10 WERE REAMED WITH FINAL DIAMETER OF: 0.5780INCH. ALSO (VT) VISUAL INSPECTION AND (ET) (HFEC) INSPECTION WAS ACCOMPLISHED ON OPEN HOLES: #1, #2, #4, #5 AND #10 AT LH ENG DRAG FTG CLAMP-UP & DIAG BRACE, NO CRACKS WERE FOUND AFTER REWORKED PER IN REF. CARD. (2504847)