Service difficulty report · Lap Joint · Boeing 727173C

Difficulty date
January 5, 2006
Submitted
January 25, 2006
Operation
Air carrier
Aircraft
N938UP
Make and model
Boeing 727173C
Aircraft serial
19506
Aircraft time
53,564 hours, 34,429 cycles
Engine
Rroyce TAY65154
Part
Lap Joint
Condition
Corroded
Location
Bs 1010 S4r
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

INSPECTION TYPE:C AND IS CORROSION EVIDENT AT LAP JOINT S4 RT BS 1010 TO 990. PLS. CARRY OUT N DI ON LAP JOINT BS 1080 TO 870 RE-INSPECT AND RECTIFY IAW EO APPENDIX IF NECESSARY LFEC INSP. CARRIED OUT IAW NDTM PT 6 51-00-00 FIG 5. - 15 PERCENT MATERIAL LOSS INDICATION BETWEEN BS 990 - 1010. HFEC INSP. CARRIED OUT LAP JOINT OF ABOVE AREA - NO DEFECTS FOUND. REPAIR CARRIED OUT IAW SRM 51 -10-01, 53-30-3 AND UPS EO B727-5330-0509 APPENDIX C