SDR VGQY2010080500059

Service difficulty report · Frame · Boeing 747228F

Difficulty date: August 5, 2010
Submitted: August 6, 2010
Operation: Air carrier
Filed by: VGQY082L
St Engineering Aerospace Services Company Pte. Ltd
Aircraft: N753SA
Make and model: Boeing 747228F
Aircraft serial: 21787
Aircraft time: 119,067 hours, 23,482 cycles
System (JASC): 5412 · Nacelle/Pylon, Bulkhead/Firewall
Part: Frame
Condition: Cracked
Location: Nr 3 Pylon
Stage of operation: IN
How discovered: E
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

CRACK FOUND ON NR 3 PYLON REAR ENGINE MOUNT BULKHEAD, INBOARD FORWARD FRAME, FROM BOTTOM 3RD FASTENER HOLE TO EDGE WITH LENGTH OF APPROX 0.25 INCH. BULKHEAD WEB CRACKED AREA TRIMED-OFF, REPAIR DOUBLER AND FILLER FABRICATED AND INSTALLED PER B747 SRM 54-11-03 REV 116, FIGURE 10.