Service difficulty report · Spar · Boeing 75723A

Difficulty date
October 27, 2008
Submitted
October 29, 2008
Operation
Air carrier
Aircraft
N920FD
Make and model
Boeing 75723A
Aircraft serial
24289
Aircraft time
68,579 hours, 21,958 cycles
Part
Spar
Condition
Misinstalled
Location
Nr 1 Nacelle
Stage of operation
IN
How discovered
V
Nature of condition
W
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

NR 1 PYLON, WHEN THE 311N5220-52 BATHTUB FITTING WAS LOCATED AND DRILLED C/M TO THE INBD LOWER SPAR 3 HOLES WERE MISLOCATED CAUSING A MISALIGNMENT C/M TO THE LWR SPAR. REAMED OTBD HOLE "A' TO 0.3267 DIA AND INSTALLED 1 BACB30US5K(*) X BOLT. REAMED OTBD HOLE "B" TO 0.4067 AND INSTALLED 1 BACB30US6K(*) Y BOLT AND BACW10CA SELF, ALIGNING WASHERS UNDER BOLT HEAD AND NUT. BOTH FASTENERS IN HOLE "A" AND HOLE "B" WERE REAMED. INSTALLED AND TORQUED PER EA 757-5450-16-A1812 REV -, OCT 21,2008. COMPLIED WITH EA F-5450-124026 OCT 22, 2008.

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