Service difficulty report · Floorbeam · Boeing 7272Q9

Difficulty date
March 25, 2003
Submitted
April 7, 2003
Operation
Air carrier
Aircraft
N741DH
Make and model
Boeing 7272Q9
Aircraft serial
21931
Aircraft time
44,384 hours, 35,863 cycles
Engine
Pwa JT8D17
Part
Floorbeam
Condition
Cracked
Location
Fuselage
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 (C) CHECK, FUSELAGE INTERIOR FLOORBEAMS BS 640 AND BS 660 SPLICE PLATE TO MCD LWR. BEAMS ARE CRACKED 2 EACH NDT CONFIRMED.CA: 1) REMOVED FWD. PIT LT UPPER SIDEWALL GILLINER SUPPORTS FROM BS 580 TO 680. REMOVED LWR JAMB WEB ANGLE LWR EDGE FOR WEB REMOVAL AND ANGLES FWD AND AFT OF FLOORBEAMS TO LWR JAMB WEB BS 640-660. REMOVED LWR JAMB WEB FOR ACCESS AND REMOVED CRACKED SPLICE PLATES FROM BS 640 AND 660. FABRICATED TWO EACH SPLICE PLATES USING 7075-T6 125 PO NR 2706118 DIM. 16 INCHES X 6.5 AND AEI STC SA 179850. 5 ALODINED AND PRIMED NEW PIECES INST. NEW PLATES AT BS 640 AND AEI STC SA 179850. 6) REINSTALLED LWR. JAMB WEB, FLOORBEAM ANGLES, LWR. JAMB, EDGE ANGLE AND FILLER SUPPORTS.

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