SDR DALA2021070703780

Service difficulty report · Skin · Boeing 757251

Difficulty date: July 4, 2021
Submitted: July 7, 2021
Operation: Air carrier
Aircraft: N552NW
Make and model: Boeing 757251
Aircraft serial: 26499
Aircraft time: 51,281 hours, 22,708 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin
Condition: Damaged
Location: Fuselage
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

SHIP 5652 MONITOR INSPECTION LOG REF ERA 592439-14. CORRECTIVE ACTION: FOR THE FIRST HOLE, A 1 INCH DIAMETER OF THE 0.056-INCH-THICK CLAD 2024-T3 ALUMINUM ALLOY SHEET WAS REMOVED AND FILLED WITH A BACR15FT6KE FASTENER. THE SECOND HOLE WAS PLUGGED THROUGH SKIN AND STRINGER ONLY WITH BACR15CE6AD FASTENER. A 0.063 INCH THICK DOUBLER OF CLAD 2024-T3 ALUMINUM ALLOY SHEET WAS INSTALLED. REF ERA 592439-14. (1863697)