Service difficulty report · Frame · Boeing 7272Q9

Difficulty date
March 22, 2003
Submitted
April 7, 2003
Operation
Air carrier
Aircraft
N741DH
Make and model
Boeing 7272Q9
Aircraft serial
21931
Aircraft time
44,384 hours, 35,863 cycles
Engine
Pwa JT9D*
Part
Frame
Condition
Corroded
Location
Fuselage
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

DURING (C) CHECK DISCREPANCY AS FOLLOWS, FUSELAGE C-1 DOOR CUT-OUT FWD. FRAME WEB BS 560 CORROSION THRU FASTENERS HOLES OF NR 6 DOOR STOP ALSO AT WEB. C/A: REMOVED PREVIOUS REPAIR C-1 DOOR FWD. FRAME WEB BS 560 FOR CORROSION REMOVAL IAW B-727 SRM 51-30-2. 2) REMOVED LIGHT SURFACE CORROSION FROM WEB WITH A MATERIAL LOSS .002 AND IS WITHIN LIMITS I.A.W. B-727 SRM 53-10-1 FIG. 1. 3) FABRICATED NEW REPAIR DOUBLER DIMENSIONS 10 IN X 4.5 IN USING 7075 T-6 .063 P.O. NR 9911861 IAW B-727 SRM 51-40-2. 4) PREVIOUS DOUBLER CORROSION CLEAN UP OUT OF LIMITS IAW B-727 SRM 53-10-1 FIG. 1. 5) ALODINED AND PRIMED AREA AND DOUBLER IAW B-727 SRM 51-10-2. 6) INSTALLED NEW REPAIR PIECE IAW B-727 SRM 51-40-2 AND 51-30-2.

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