SDR UPS00432515

Service difficulty report · Web · Boeing 747212B

Difficulty date: April 17, 2000
Submitted: May 12, 2000
Operation: Air carrier
Aircraft: N520UP
Make and model: Boeing 747212B
Aircraft serial: 21943
Aircraft time: 66,582 hours, 15,080 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Web
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

INSPECTION TYPE:C 44, UPPER DECK, FUSELAGE FRAME WEB IS CRACKED AT CUTOUT FOR STR AT BS 520 STR 11 RT. REPAIRED CRACKS AT BS 520 SRM 53-10-04, FIG 20. THE CRACKED FRAMES WERE REPAIRED BY STOP DRILLING CRACKS AND INSTALLING REPAIR DOUBLERS AND CLIPS. DETAILED IN APPROVED 8110-3 FOR SAID REPAIR.

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