SDR DALA2020020520899

Service difficulty report · Skin · Boeing 757251

Difficulty date: February 1, 2020
Submitted: February 5, 2020
Operation: Air carrier
Aircraft: N555NW
Make and model: Boeing 757251
Aircraft serial: 33391
Aircraft time: 50,113 hours, 21,770 cycles
System (JASC): 5730 · Wing, Plate/Skin
Part: Skin
Condition: Damaged
Location: Lt Wing
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

(AIRCRAFT 5655, L/P 1471528) CORROSION ON COUNTERSINK OF HOLE NUMBERS 2, 3, 4, 5, 8, 9,10 AND 14 AT LH WING UPPER SKIN (DRAG FITTING ZONE). CORRECTIVE ACTION: REMOVED CORROSION PER ER/A 584900-14AD REV: ORIGINAL, SECTION I: PERMANENT REPAIR AND ETI-57-20-006, REV 10.