Service difficulty report · Structure · Boeing 757222

Difficulty date
September 28, 2012
Submitted
November 15, 2012
Operation
Air carrier
Aircraft
N525UA
Make and model
Boeing 757222
Aircraft serial
24978
Aircraft time
74,972 hours, 22,673 cycles
Engine
Pwa PW2037
Part
Structure
Condition
Corroded
Location
Lt Wing
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

LEFT UPPER WING, REMOVED CORROSION AT 57\ O/B OF BBL 70.5 AND 8\ FWD OF REAR SPAR. REMOVED APPROX .010\ MAT AND TREATED AREA WITH ALODINE. CORR DID NOT GO INTO FASTENER AND FASTENER OKAY REF AVO ENC120524-5325-1. INSPECTED AREA WBL 139.0 USING 757 NDT PART 4 51 00 00 AND MEASURED .007 INCH, REMOVED FOR CORROSION, ORIG THICKNESS .330 INCH NO LAMINAR CORROSION FOUND, USING AVO ENC120524-5325-1 ITEMS 4 & 5.