Service difficulty report · Not Reported · Boeing 757231

Difficulty date
October 20, 2021
Submitted
October 20, 2021
Operation
Air carrier
Aircraft
N722TW
Make and model
Boeing 757231
Aircraft serial
29385
Aircraft time
79,304 hours, 19,967 cycles
Part
Not Reported
Condition
Not Reported
Stage of operation
IN
How discovered
O
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

SHIP 6816 LH ENG DRAG FTG CLAMP UP SECTION 04 DAMAGES FOUND ON OPEN HOLES AS FOLLOWS: HOLE#1 CORROSION ON SKIN BTW 5 -7 HRS POSITION; HOLE #2 CORROSION ON SKIN/FITTING BTW 4 - 1 CLOCK POSITION, GOUGE ON SKIN BTW 7 - 10 CLOCK POS, GOUGE ON FITTING BTW 12 - 2 CLOCK POSITION ; HOLE #3 CORROSION ON SKIN BTW 9 - 4 CLOCK, CORROSION ON FITTING AT 10 CLOCK AND AT 6 CLOCK POS ; HOLE #4 CORROSION ON SKIN/FITTING BTW 9 - 5 CLOCK POS ; HOLE #5 CORROSION ON SKIN BTW 4 - 7 CLOCK POS AND BTW 8 - 10 CLOCK POS, SCRATCH ON 7 CLOCK POSITION ON SKIN/FITTING ; HOLE #6 CORROSION ON SKIN BTW 4 - 11 CLOCK POS, CORROSION ON FITTING BTW 4 - 6 CLOCK POS , SCRATCH ON SKIN/FITTING AT 11 CLOCK POS, SCRATCH ON SKIN/FITTING AT 10 CLOCK POS ; HOLE #7 CORROSION ON SKIN BTW 4 - 1 CLOCK POS , CORROSION ON FITTING BTW 4 - 11 CLOCK POS ; HOLE #8 CORROSION ON SKIN/FITTING ALL AROUND BORE HOLE ; HOLE #9 CORROSION ON SKIN BTW 11 - 1 CLOCK POSITION ; HOLE #10 CORROSION ON FITTING BTW 6 - 4 CLOCK POSITION (IN REF TASK CARD). CORRECTIVE ACTION: SUMMARY OF NRC00276 OPEN HOLES AT LH ENG DRAG FTG AS FOLLOW: HOLE #1, HOLE #2, HOLE #3, HOLE #4, HOLE #5, HOLE #6, HOLE #7, HOLE #8, HOLE #9 AND HOLE #10 WERE REPAIRED PER ER/A 594900-14AD REV:ORIGINAL; SECTION I: PERMANENT REPAIR AND ETI-57-21-509 REV 4. (1989604)