Service difficulty report · Stringer · Boeing 727233

Difficulty date
October 11, 2008
Submitted
October 15, 2008
Operation
Air carrier
Aircraft
N221FE
Make and model
Boeing 727233
Aircraft serial
20932
Aircraft time
55,637 hours, 35,946 cycles
Part
Stringer
Part number
65564414
Condition
Corroded
Location
Zone 100
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

CORROSION ON S29R AT BS 970-990. BLENDED OUT S29R FLANGE AS NECESSARY TO REMOVE CORROSION, REMAINING THICKNESS DIMENSIONS MAINTAIN A 20-1 BLENDOUT RATIO WITH A MIN 1.0: RADIUS PER MESSAGE 1-1013418906-2,3,4,5,6, AND ARE WITHIN LIMITS. ACCOMPLISHED HFEC AND SURFACE INSP PER NDTM 51-00-00, NO DEFECTS NOTED, FLAP PEENED AREA PER SOPM 20-10-03, FINISHED AREA AND APPLIED CORROSION INHIBITOR. ALL STEPS ACCOMPLISHED PER EA 7-5330-126853.