SDR FDEA201002090370

Service difficulty report · Skin · Boeing 757204

Difficulty date: February 9, 2010
Submitted: February 9, 2010
Operation: Air carrier
Aircraft: N924FD
Make and model: Boeing 757204
Aircraft serial: 26267
Aircraft time: 58,915 hours, 21,446 cycles
System (JASC): 5414 · Nacelle/Pylon, Plate/Skin
Part: Skin
Part number: 311N5046Y54
Condition: Corroded
Location: Nr 1 Pylon
Stage of operation: IN
How discovered: V
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

NR 1 PYLON RT INNER SKIN HAS CORROSION RUNNING INTO SPLICE, ACCESS THRU PANEL 433HR AND 433JR. CORROSION ON SKIN BLENDED OUT OF LIMITS IAW SRM 54-50-01, FIG 101, DETAIL II. REPLACED SKIN ASSY WITH PN 311N5046Y54, SKIN PANEL ON SERVICABLE PARTS TAG NR 1455B2 IAW SRM 51-40-02, AND DWG 311N5002, REPAIR IS CLASSIFIED AS MAJOR REPAIR.