Service difficulty report · Skin · Boeing 727225

Difficulty date
November 15, 2007
Submitted
February 17, 2008
Operation
Air carrier
Aircraft
N742DH
Make and model
Boeing 727225
Aircraft serial
21290
Aircraft time
60,719 hours, 38,406 cycles
Part
Skin
Condition
Dented
Location
Bs 316 S3l
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

FUSELAGE EXTERNAL BS 316 ON STRINGER 3L HAS SKIN DENTED. EVALUATED DENTS ON BS 316 STRINGER 3L. A:0.9" Y:0.010" A/Y:90 AND A:1.1" Y:0.017" A/Y RATIO 64.71, A/Y RATIO WITHIN LIMITS BUT FOUND DENTS OUT OF LIMITS DUE TO DENTS ARE LOCATED OVER STRINGER IAW B-727 SRM 53-30-1 FIGURE 1. CUT OUT DAMAGED AREA IAW B-727 SRM 53-30-3 FIGURE 3 (DIMENSION 3.5" BY 1.25"). FABRICATED REPAIR DOUBLER FROM 2024-T3 0.050" PO NR 9005554 (DIMENSION 13.5" BY 7") AND REPAIR FILLER FROM 2024-T3 0.040" PO NR 9005892 (DIMENSION LENGTH 3.5" BY .25" WIDE) IAW B-727 SRM 53-30-3 FIGURE 3 AND 53-30-2 FIGURE 2. TREATED AND PRIMED PARTS AND AREA IAW B-727 SRM 51-10-2 AND INSTALLED REPAIR AT FUSELAGE SKIN BS 316 STRINGER 3L IAW B-727 SRM 53-30-3 FIGURE 3 AND 51-30-2.