SDR UIEA99085

Service difficulty report · Bulkhead · Boeing 7472D7B

Difficulty date
September 29, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N526MC
Make and model
Boeing 7472D7B
Aircraft serial
22337
Part
Bulkhead
Condition
Cracked
Location
Bs 1480
Part time
72,098 hours
Stage of operation
IN
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

WHILE ACCOMPLISHING SB 747-53A2390, HFEC INSPECTION OF BS 1480 HOLE NR 19 REVEALED A CRACK IN THE WEB PANEL ONLY. PER SB 747-53A2390 HOLE WAS OVERSIZED TO .5625 INCH WEB PANEL ONLY. INSTALLED FREEZE PLUG. FABRICATED SEPARATE BUSHING FOR THE WEB SPLICE PLATE, BULKHEAD AND OUTER CHORD SPLICE FITTING. (M)

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