SDR EIA990056

Service difficulty report · Bulkhead Web · Boeing 747121

Difficulty date
February 7, 1999
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N480EV
Make and model
Boeing 747121
Aircraft serial
20348
Part
Bulkhead Web
Condition
Cracked
Location
Bs 1480
Part time
97,499 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

HKG - DURING C-CHECK, DURING ACCOMP OF EO 53-747-1513-98B AND SB 747-53A2390 PLAN B, BS 1480 BULKHEAD INSPECTION MOD, RIGHT SIDE (4 EACH) FASTENER HOLES FOUND CRACKED, NR 16 AND NR 17 IN WEB SPLICE PLATE, NR 5 OUTER CHORD SPLICE AND NR 9 LONGERON EXTENSION FITTING, NRC 7281, 7282, 7352 AND 7368. HOLES NR 16, NR 17 AND NR 5, WEB SPLICE PLATE AND OUTER CHORD SPLICE REPLACED IAW SB 53A2390, FOR HOLES NR 14, NR 15, NR 18 AND NR 19, SLEEVED BOLTS INSTALLED IAW SB 53A2390 FOR HOLE NR 9 OF LONGERON EXTENSION FITTING. REPAIR ACCOMPLISHED IAW RS R-53-43-34045, 8110-3 AND ECRA. (M)