Service difficulty report · Spar · Doug MD88

Difficulty date
July 25, 2011
Submitted
July 28, 2011
Operation
Air carrier
Aircraft
N949DL
Make and model
Doug MD88
Aircraft serial
49880
Aircraft time
56,867 hours, 42,912 cycles
Part
Spar
Condition
Damaged
Location
Vertical Stab
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 PSV VISIT IN MSP 6 DAMAGED HOLES WERE FOUND ON THE RT SIDE OF THE VERTICAL STAB FRONT SPAR CHORD. THE SUBJECT HOLES WERE OPENED TO NR 1-(0.218") NR 4-(0.218") NR 5-(0.218") NR -6(0.218") NR 7-(0.234") RESPECTIVELY. THE HOLES ARE OPENED IN THE SPAR CHORD TO ALLOW FOR 0.030 WALL MIN. ON EA. BUSHING. BUSHINGS ARE INSTALLED AT EACH LOCATION AND A REPAIR STRAP WAS INSTALLED PER DRAFT SG0955005-7003 REPAIR. DURING THE REPAIR THE FORTH HOLE BELOW NR 1 WAS DAMAGED AND REQUIRED OVERRSIZE TO .246 TO OBTAIN CLEAN HOLE. NOTE THAT ALL HOLES WERE OUT OF ROUND AND NO CRACKS WERE FOUND DURING INITIAL INSP ERA-494480-14.

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